SOLAR DECATHLON 2021 // Office Building Division // WAAC by jtan.design

1021 PRINCE ST. RENOVATION Solar Decathlon Design Challenge 2021 | Office Building (OB) Category Virginia Polytechnic Institute and State University

SOLAR DECATHLON DESIGN CHALLENGE 2021 VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY

TABLE OF CONTENTS 1.0 PROJECT + TEAM ....................................................................................... 1 1.1 Project Introduction 1.2 Design Team 1.3 Project Advisors 1.4 Design Goals 2.0 CONTEST NARRATIVES ............................................................................ 8 2.1 Architecture 2.2 Engineering 2.3 Market Analysis 2.4 Durability + Resilience 2.5 Embodied Environmental Impact 2.6 Integrated Performance 2.7 Occupant Experience 2.8 Comfort + Environmental Quality 2.9 Energy Performance 3.0 APPENDIX A: DESIGN RENDERINGS ........................................................ 37 3.1 Street View 3.2 Courtyard View 1 3.3 Courtyard View 2 3.4 Upper Courtyard View 1 3.5 Upper Courtyard View 2 3.6 Assembly Space 3.7 Pin Up Space 3.8 Study Area 4.0 APPENDIX B: CONSTRUCTION DOCUMENTATION ................................. 42 5.0 APPENDIX C: ENERGY PERFORMANCE ................................................... 58

SOLAR DECATHLON DESIGN CHALLENGE 2021 VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY

LIST OF FIGURES Fig 1: Existing building

Fig 23: Features Survey Results

Fig 2: Existing building

Fig 24: Important Features Survey Results

Fig 3: Massing model diagram

Fig 25: Performance test results on NanaWall

Fig 4: Upper courtyard section

SL70

Fig 5: HVAC + Solar Diagram

Fig 26: Ground floor nourishment key plan

Fig 6: Occupancy Control Zones

Fig 27: Second floor nourishment key plan

Fig 7: Electric Tankless Water Heater

Fig 28: Third floor nourishment key plan

Fig 8: Photovoltaic panel array

Fig 29: Typical Interior Wall Detail

Fig 9: OneClick LCA results

Fig 30: LightArt acoustic performance graph

Fig 10: Reclaimed material circular economy

Fig 31: Ground floor biophilic pattern key plan

Fig 11: Global warming kg CO2e Chart

Fig 32: Second floor biophilic pattern key plan

Fig 12: Summer daylighting

Fig 33: Third floor biophilic pattern key plan

Fig 13: Winter daylighting

Fig 34: Photovoltaic Information

Fig 14: Shading diagram

Fig 35: Photovoltaic layout

Fig 15: Key Words Survey Results

Fig 36: Monthly solar generation chart

Fig 16: Amenities Survey Results

Fig 37: Building Grid Interaction Diagram

Fig 17: Occupant Survey Results

Fig 38: End use chart

Fig 18: Occupant Time Survey Results

Fig 39: Energy Saving Strategies

Fig 19: LightArt Acoustic light feature

Fig 40: Glo Triple Pane Window Detail

Fig 20: Ground floor materials key plan

Fig 41: Improved Thermal Envelope

Fig 21: Second floor materials key plan

Fig 42: Existing Thermal Envelope

Fig 22: Third floor materials key plan

Fig 43: New Construction Section Detail Fig 44: Improved Existing Section Detail

SOLAR DECATHLON DESIGN CHALLENGE 2021 VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY

1.0 PROJECT + TEAM

SOLAR DECATHLON DESIGN CHALLENGE 2021 VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY

1.1 Project Introduction The Washington-Alexandria Architecture Center has served as an urban extension of the VT School of Architecture + Design since 1980. The WAAC distinguishes itself on its interdisciplinary, international, and individual focused learning environment. With a pedagogy of freedom and responsibility, the WAAC sets the stage for students to learn from a multiplicity of actors, and interests designing in the modern urban setting. The main building, 1001 Prince Street holds the history of its original construction as a elementary school for girls as well as the memory of past WAAC student design build projects. The 1021 Prince Street building next door was only recently absorbed into the WAAC’s facilities in 2019. In 2020, prompted by the pandemic and opportunity to reevaluate the performance of 1021 — the WAAC is taking on the challenge of adaptively reusing and renovating 1021 into a zero energy building that showcases the WAAC as an embodiment of its pedagogy and its future.

PROJECT DATA Location: Alexandria, VA, USA Climate Zone: 4A Lot size: 9,553ft2 Building size: 32,770ft2; 4 stories Occupancy: 400 pax Target Source EUI: 68.5 kBtu/ft2/year Existing Average Utility Cost: $22,000/year Projected New Average Utility Cost: $15,525/year Construction Cost: - Renovate existing space $2,700,000 - New Construction: $5,200,000 - Exterior Skin Replacement $350,000

Fig 1: Existing building

TECHNICAL SPECIFICATIONS Existing wall, roof, and foundation R-value: 10.47, 42.0, 3.37 ft2·°F·h/BTU Renovated wall, roof, and foundation R-value: 35.78, 76.44, 3.37 New construction wall, roof, and foundation R-value: 35.19, 62.74, 4.32 New window U-value, SHGC: .14 Btu/h·ft2·F, .30 Curtain wall U-value, SHGC: .17 Btu/h·ft2·F, .24 Building Technologies: High efficiency windows, on site PV, ground heat exchange, ERV system, radiant heating and cooling, improved envelope On site PV: Roof mounted poly-crystalline solar panels 2

SOLAR DECATHLON DESIGN CHALLENGE 2021 VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY

1.2 Design Team Architecture SHELBY POLLACK M.Arch Team Lead

HANNA O’CONNOR B.Arch (4th Year)

TIM COX B. Arch (4th Year)

NOAH DUSICH B.Arch (4th Year)

Engineering + Systems ELIOT DAVIS B.Arch (4th Year) Team Lead

TAVISAN RAMESH M.Arch

SAWYER FLETCHER B. Arch (4th Year)

QUYNGINA ZHANG B.Arch (4th Year)

KELSEY SORENSON B. Arch (5th Year)

COLIN RUSH B.Arch (4th Year)

SOLAR DECATHLON DESIGN CHALLENGE 2021 VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY

Occupant Experience + Interiors (WELL) BRITTNEY SOOKSENGDAO M.Arch Project + Team Lead

DANIEL KIM B.Arch (4th Year)

ERIKA TOSCANO JARAMILLO M.Arch

Landscape BRANDON M. FIMBREZ B.Arch (4th Year) Team Lead

MEHUL AGARWAL B.Arch (4th Year)

Graphics + Branding + Presentation DANAH ALNAJIDI M.Arch Team Lead

JOHNATHAN TAN B.Arch (4th Year)

CARINA ESUBALEW M.Arch

SOLAR DECATHLON DESIGN CHALLENGE 2021 VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY

1.3 Project Advisors PETER VANDERPOEL WAAC Arch. Faculty Faculty Lead

SUSAN PIEDMONTPALLADINO WAAC Urban Resilience Project Client + Advisor

TEMINIOLUWA THOMAS WAAC PhD. Student Design Advisor

JAMES JONES Virginia Tech Building+Science Systems Design Advisor

MILIA BOROYEVICH WAAC Arch. Faculty Design Advisor

RYAN PIEPER WAAC Arch. Faculty Design Advisor

RANDY WONG Quinn Evans Architects Architect Design Advisor

SCOTT SKLAR The Stella Group Renewable Energy System Design Advisor

SALLY LEE HDR Architecture Architect Design Advisor

IGOR CVETKOVIC Virginia Tech CPES Power Electronics Design Advisor

SOLAR DECATHLON DESIGN CHALLENGE 2021 VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY

1.4 Design Goals BUILD UPON + OPTIMIZE THE BUILDING ENVELOPE FOR EFFICIENCY Intentions are to maintain most of the existing exterior envelope to reduce the amount of contruction waste and demolition costs. Layers of insulation will attach to the exterior face of the existing walls and roof and are filled in the voids between existing metal studs to create a more efficient skin while reducing demolished material from the existing building. The envelope of the new extension will include SIPs panels manufactured off-site, which will improve construction efficiency, and reduce the thermal bridging suffered by traditional stickframe walls.

EXTEND MATERIAL LIFECYCLES AND MINIMIZE MATERIAL WASTE By retrofitting an existing building, the project avoids the energy and material wastes of the demolition and new construction phases typical to this area. Existing exterior walls are retained and insulation levels are increased via addition and not full replacement. In areas of new construction, long-life and sustainably-produced materials like Reused Brick and Lamboo are used. Polycarbonate panels in circulation areas are selected for their post-consumer material content, recyclability and resistance to yellowing. Construction waste is recycled and materials are planned to reduce waste.

SUSTAINABLE DEVELOPMENT IN A SENSITIVE CONTEXT The redesign of the building massing and facades invokes the essence of Old Town Alexandria’s historic character by using materials that speak to the traditional construction methods of the town’s 18th- and 19th-Century buildings. Major massing changes are kept on the inward portion of the site to maintain the human scale of the neighborhood, and exterior windows continue the dimensional aspect and punched nature of the surrounding buildings. Overtly modern architectural features are limited and focused to propose the future of sustainable development in areas with deep historical context.

PRIORITIZE PASSIVE + NATURAL SYSTEMS This project prioritizes natural and passive systems as the primary source for building systems before turning to other energy -consuming sources. This includes utilizing natural daylighting to reduce the cost of electricity, improve electrical efficiency, utilizing ground source for heating and cooling, as well as foster a healthy circadian lighting design that creates a more productive and positive environment for the occupants.

SOLAR DECATHLON DESIGN CHALLENGE 2021 VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY PLACE HUMAN HEALTH + WELL-BEING AT THE CENTER OF DESIGN Architecture schooling and studio culture is a notoriously unhealthy work environment and culture. This project challenges that status quo by designing an environment for a future of architects that prioritizes the health and well-being of occupants. To do so, the project references the International WELL Building Standard and relies on the knowledge of the inteam WELL Accredited Professional to establish a framework of design strategies that optimize occupant health and well-being. The WELL standard combines best practices in design and construction w/ evidence-based health and scientific research to place people at the heart of design. This strategy allowed the project to add value to real estate, contribute to green building strategies, and generate savings to personnel costs in addition to enhancing human health.

COMMUNITY ENGAGEMENT In line with Virginia Tech’s motto - Ut Prosim (That I May Serve), the WAAC in its rich urban context in Alexandria focused on renovating 1021 to communicate an investment in its community. By designing flexible event spaces like the gallery, assembly space, and courtyard that can be made available to the community, the building will serve to deepen the school’s community relationships.

SOLAR DECATHLON DESIGN CHALLENGE 2021 VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY

2.0 CONTEST NARRATIVES

SOLAR DECATHLON DESIGN CHALLENGE 2021 VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY

2.1 Architecture OVERVIEW The renovations to 1021 Prince Street go above and beyond the requirements of sustainable design by also responding to historical context, user experience requirements like the WELL standard, and the needs of a continually evolving design school. Each architectural response of this building aims to integrate environmental performance and meaningful design. APPROACH: DESIGN, DEMO, CONSTRUCTION As previously mentioned, this project is a renovation; so why did we choose to work with the existing building instead of start from scratch? Simple: according to Architect Carl Elefante, the Director of Sustainable Design at Quinn Evans Architects in Washington, D.C., “The greenest building is the one that is already built,”and we agree. The average life of a building in the US today is about 30 years, which is something that this project aims to combat. The area in which it resides is full of buildings that preceded by buildings dating back to the 1800s, which is the beauty of the location: the retention of history and the sustainable act of building renovation.

Fig 2: Existing building

Although we decided to make numerous modifications to this building to make it work best for our purpose as well as sustainably, the building we started with had great bones. The existing construction is strong and without any structural issues. Keeping this remaining structure and adding insulation on top of the existing facade helps us to increase the R-value of the wall, and also significantly reduce the carbon footprint due to construction of a new building. Oftentimes when a building is torn down, construction waste gets added into the landfill. For our project, any bricks that are removed will be added to the new facade and landscape; and any unusable materials will be brought to a local construction waste recycling facility called Broad Run Recycling, which is only about 40 miles away and is “the leading recycler of mixed construction waste in the DC metro area”. This process, as well as planning how materials are used to minimize waste, are strategies that we intend to use to lessen the carbon footprint that is brought about by construction.

SOLAR DECATHLON DESIGN CHALLENGE 2021 VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY SITE + MASSING The building we have renovated, 1021 Prince Street, exists on the same block as the current main building for the Washington-Alexandria Architecture Center (WAAC), 1001 Prince Street. The building was recently acquired by the WAAC and we had been charged with modifying it to work for the needs of the school. In order to do so, we needed additional square footage to accommodate the student workspaces, an auditorium, as well as a maker space for the campus. The first noticeable addition is on the south facade of the building. We extended the facade to align with the rowhomes along the street and opened up some walls with glass to help engage the visual connection Prince Street and the WAAC. The first space one sees is the auditorium, which allows student presentations, lectures, and community movies to be partially seen by passers-by. The addition also features shading that allows for the space to regulate how much sun gets in and ensure a comfortable temperature. Also, along Prince Street we removed the entrance to the parking garage, relocated it to the northern addition. This allowed us to open up the courtyard to the sidewalk, making the approach to the building much more inviting as well as ADA compliant.

Lobby Office + Studio Existing Building

Additions

Parking Circulation Wood + Metal Shop Assembly Space Fig 3: Massing model diagram

Existing Building Program

New Building Program

SOLAR DECATHLON DESIGN CHALLENGE 2021 VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY The larger addition on the north side of the site extends out from the east wall of the existing 1021 building. It is laid out as a three-story structural bay that completes the wall of the lower courtyard and keeps massing in an area with sufficient solar access to the south. To meet the programmatic needs of the garage entry, loading dock and the shop, the first floor continues further to the east of the new addition towards Patrick Street, while remaining low enough to not interfere with the existing daylighting of the 1001 building as well as creating an elevated courtyard that both increases the greenspace on the site and creates a connection between the two buildings on the site.

Fig 4: Upper Courtyard Section

ENVELOPE + MATERIALS Though the existing building is less than 50 years old, it is inserted into an environment where many buildings have existed for more than 200 years. Old Town Alexandria’s aesthetic is enforced both culturally and through the city’s development guidelines. The exterior of the building aims to use materials and forms that emulate the historic neighborhood it lives in, while integrating design and sustainable strategies in a way that doesn’t overwhelm its context. This retrofit addresses materiality concerns by using reclaimed brick and wood paneling, with careful and limited use of glass and translucent polycarbonate materials. Reclaimed brick reduces construction waste in a region of heavy development, and provides labor training through a local nonprofit, Second Chance Inc., that specializes in deconstruction. Lamboo 11

SOLAR DECATHLON DESIGN CHALLENGE 2021 VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY wood paneling provides a similar material texture to traditional wood siding but is made from bamboo, a more sustainable material that performs more effectively as a rainscreen. Doors and windows are aligned to ensure visual and physical connections to the outdoor spaces. Folding glass Nanawalls within the courtyard spaces help to solidify this. They occur at the refreshment bar on the first floor; as well as at the Juliette balcony on the second floor, and the cafe space on the third floor. The north side of the building has slightly inset balconies that allow office users to step outside at an elevated level.

INTERIOR ARCHITECTURE The interior of the existing building has been demolished aside from maintaining the existing elevator core and the east fire egress stair. The new layout of the interior spaces utilizes occupant survey data findings to optimize multiplicity of programmatic uses and prioritize collaboration with an efficient square footage. The key interior design strategies to accomplish this were: 1. Establish various programmatic zones through patterned surround thresholds, and intentional ceiling, and flooring transitions. 2. Activate flexible programmatic functions through pivoting tackable wall panel partitions. Integrate biophilic patterns to acoustic panels, screens, and ceiling features to support occupant comfort. 3. Provide optimal daylight. LED light fixtures with pleasant light temperatures continue this effect into evening hours through the 24 hour studio use. Refer to 2.7 Occupant Experience for more on the interior design strategies.

LANDSCAPE Site modifications were made to provide a more pleasant and inviting experience while approaching the site. A gently sloped stair ramp allows for an accessible and intriguing entry into the central courtyard while providing seating, outdoor work spaces, water features, and connection to nature for both occupants and pedestrians. Permeable pavement allows for drainage on the site. A harvestable garden on the upper courtyard provides the school with fresh produce and offers an opportunity for community involvement. A frontage loop on Patrick Street was added for rideshare use as well as street vendors to occupy and provide food and refreshments to the surrounding community. The new courtyard additions will give the occupants and the community a pleasant experience and will create a new landmark for old town Alexandria. 12

SOLAR DECATHLON DESIGN CHALLENGE 2021 VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY

2.2 Engineering HVAC SYSTEM We decided, in addition to replacing the existing HVAC system to a more energy efficient one, also rethink how we can enhance thermal comfort of the user. Our goal was also to eliminate the use of natural gas which the current system uses for heating. In this regard, we have decoupled the HVAC loads and have assigned two different systems to take care of sensible and latent load requirement of the building. The proposed radiant floor system provides the required sensible heating and cooling and Energy Recovery Ventilators cover the latent load. The radiant floor heating and cooling system is powered by four Water – Water Geothermal Heat Pumps with a total capacity of 79 tons. We have identified the existing parking lot of the neighboring 1001 building to accommodate the wells for the Geothermal vertical ground loops. A total of nine thermal zones have been identified based on the occupancy, peak load requirement and volume of the space. The Assembly space and the wood shop have one GSHP each (17 ton and 8 ton) to provide adequate heating and cooling.

Fig 5: HVAC + Solar Diagram

SOLAR DECATHLON DESIGN CHALLENGE 2021 VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY The radiant tubes will be installed over the existing concrete decking slab with an overpour thickness of 1.5” (5/8” PEX tubes at 8”-9” spacing). The entering fluid temperature will be monitored at each manifold. We have taken into consideration surface temperature range of 66.2°F - 84.2°F as per ASHRAE 55 standards for the radiant floor system. Since we have considered operable window system on the north and east side of the building to help enhance the wellbeing of occupants, the respective zones of the radiant system will be coupled with the windows. This will allow for a particular zone to shut down when a window is opened out enabling us to save considerable amount of energy. Each floor of the building has a dedicated Energy Recovery Ventilator to bring in adequate outdoor air flow of 6500 CFM (calculated as per ASHRAE 62.1 standard). LIGHTING SYSTEM SELECTION In order to reduce lighting loads in the building the existing lights have been replaced with low energy LED lights, and light saving technologies have been added. Occupancy sensors have been added to rooms that are not planned to be occupied at scheduled times of the day, such as individual offices and restrooms. This is a 24-hour building, with students coming to work at any hour of the day, however at night there is a higher chance of less light being needed, so these spaces use a timeclock and occupancy sensors to set a schedule in order to reduce loads in the late hours, but still be usable if someone is in the building. In the larger primarily daylit spaces, photoresistors measure lighting levels and control the light fixtures in order to minimize wasted lighting energy as the day turns to night. Fig 6: Occupancy Control Zones

Occupancy Sensors Occupancy Sensors + Time Clocks Time Clocks

SOLAR DECATHLON DESIGN CHALLENGE 2021 VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY PLUMBING An electric demand water heater is used in places in the building where hot water is needed, such as the bathrooms and kitchen. These spaces are located near the water supply in section and are centrally placed near the core of the building to reduce the amount of piping needed to transfer water. Electric demand water heaters limit water flow to 2-5 gpm of hot water when used, but the low flow fixtures used are below 1.5 gpm, and go at 60 psi. The piping is made of HDPE to prevent leaks and maintain maximum durability. There will be two 18kW water heaters per floor, one by the restrooms and one by the kitchen areas.

Fig 7: Electric Tankless Water Heater

2.3 Market Analysis The market goal is to retrofit a current Virginia Tech property to meet the operational needs of the WAAC and to provide space for the WAAC to engage with the community. This retrofit has the potential to become a new landmark in Alexandria’s Old Town and marks the expansion of Virginia Tech’s urban campus in the National Capital Region. Development of the envelope and outdoor areas speak of their time but are mindful of the neighborhood’s sensitive aesthetic context. Additionally, the project goal is to keep the building’s construction and yearly operation costs minimized by retrofitting it with efficient and sustainable building materials and equipment. These retrofits will serve to lengthen the building’s life cycle and lower operational costs, and minimize Virginia Tech’s impact on the environment. Typically, construction in the Virginia area for an office building type is approximately $5,000,000, according to the RSMeans. The goal is to design a cost-effective and affordable building. From an architectural standpoint, some of the steps towards this goal include working with the existing building structure to reduce the carbon footprint and modify the structure by applying high-performance insulation to cut down energy costs and heat loss. We have also managed to cut down material waste and cost by reusing the existing brick into our new façade. We utilized energy-efficient devices for lighting by installing LED lights to lower energy and easily control lights during unoccupied hours, managed by a Circadian lighting system for the occupants’ well-being and maximizing natural daylight. Replaced the HVAC system to a radiant floor heating and cooling system and Geothermal Heat pump system to ensure occupant comfort with minimal energy use. We are reducing the current EUI to achieve Net Zero energy. We utilized solar collection methods to capture lights and store electric power by using Solar shingles and photovoltaic panels that we were able to save to the electricity bill. 15

SOLAR DECATHLON DESIGN CHALLENGE 2021 VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY

2.4 Durability + Resilience RESILIENCE Our building is designed for efficient day to day operations long into the future. Global Warming is an important factor that was taken into consideration while designing our building. Temperatures are set to rise rapidly in the next few years. Our building’s efficiency will not be affected by these changes.

RESILIENT BUILDING STRATEGIES Materials for our building were chosen keeping sustainability as well as durability in mind. Lamboo wood paneling was chosen because it is made of bamboo which is a more sustainable material but these panels provide a similar material texture as traditional wood siding. These panels also have a very long lifespan. ENERGY STORAGE + POWER OUTAGE The excess solar energy gathered from the photovoltaic panels are sent to the salt water batteries located in the basement of our building. This energy supply can then be used in case of an emergency power outage. The PV panels on the roof also guarantee power in case of an outage in the power grid of the city. These panels help reduce the carbon footprint and is also a resilient strategy to make sure the building performs for a longer period of time into the future unlike buildings powered by non-renewable sources of energy. Our passive cooling and heating strategies also help with day to day operations during a power outage and PV panels not producing enough energy.

Fig 8: Photovoltaic panel array

SOLAR DECATHLON DESIGN CHALLENGE 2021 VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY

2.5 Embodied Environmental Impact CALCULATIONS OneClick LCA was used to perform a Life Cycle Analysis (LCA) of the building, calculating the buildings embodied environmental impact during its full lifecycle. The LCA took into consideration all permanent materials and installations for the addition to the 1021 building and received an embodied carbon benchmark of 220 kg CO2e/m2.

Fig 9: OneClick LCA results

A1 - A3 Materials: 67% A4 Transportation: 4%

Fig 10: Reclaimed material circular economy

DESIGN DECISIONS Reclamation, refurbishment, and reuse of the existing building was a major focus in the design decisions for the 1021 Prince St. renovation.5,148 square feet of new timber construction was added to the existing building to accommodate programmatic needs, and demolition was contained to only interior walls. The existing brick clad exterior walls remained intact, with an exception to openings made for new windows and doors. Any brick cladding removed is reclaimed and reused on site for paving the courtyard expansions. After additional insulation was added to the envelope, sustainable and reclaimed materials were intentionally selected for the new cladding to promote a circular economy.

B4 - B5 Replacement: 27% C1 - C4 End of Life: 2% 17

SOLAR DECATHLON DESIGN CHALLENGE 2021 VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY EMBODIED CARBON TRADE-OFFS Trade offs were made in up-front energy while installing a geothermal heat pump system in order to have lower operational energy use. The existing brick facade is wrapped in a soy-based rigid foam insulation, allowing us to increase the thermal insulation of the wall assembly and update the exterior cladding. This strategy gave us the opportunity to reduce end of life carbon by limiting demolition of the old building as well as reduce upfront carbon by utilizing existing walls rather than resorting to new construction. Compared to a scenario where the existing building was demolished and required ground up construction, keeping parts of the existing building lowered the embodied carbon benchmark from 834 kg CO2e/m2 to 220 kg CO2e/m2. Global Warming kg CO2e - Resource Types Installations + Systems Ready - Mix Glass Wood Doors + Windows Metals Precast Gypsum + Plaster Plastics + Membranes + Roof Other Resource Types

Fig 11: Global warming kg CO2e Chart

2.6 Integrated Performance Glazing was an important consideration in our design process. The majority of it is on the south side, which provides significant amounts of daylighting for the primary workspaces in the south wing, and is regulated by a louvered screen that is mimetic of the shutters seen on the surrounding buildings. Its fins are arranged in order to minimize 75 degree summer sun while still allowing in 28 degree winter sun. By gradually shifting the louver angle, the screen produces a gradient of visibility which highlights the ground-floor gathering space and invites the community. 18

SOLAR DECATHLON DESIGN CHALLENGE 2021 VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY

Fig 12: Summer daylighting

Fig 13: Winter daylighting

Shadovoltaics, PV integrated louvers, are deployed on the south facing facade, gathering energy and preventing undesirable solar gain simultaneously. Exterior shading on windows on the East and West sides evokes the historical shutter vernacular, and provides passive reduction in solar heat gain. Vertical circulation is clad in polycarbonate, a fully recyclable material made from 30% post-consumer plastic. By using two layers of polycarbonate with aerogel in between, Stairwells are well day-lit as well as retaining an envelope U-factor of .036, far outperforming traditional curtainwall.

Fig 14: Shading diagram

Adjustable ceiling light fixtures are installed throughout the interior of the space to facilitate customizable lighting conditions. These fixtures are also LED modules and ofer high lumen output and efficacy. A sustainable felt material wraps most of the lighting fixtures as well to help the acoustics of the interior. Additionally, recycled materials such as denim are incorporated into the insulation of multiple areas to minimize sound transmittance between different spaces.

SOLAR DECATHLON DESIGN CHALLENGE 2021 VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY

2.7 Occupant Experience The occupant experience and interior design began with aggregating real-time data from a comprehensive occupant survey of current users of the existing space. The survey findings following display the metrics that helped to drive not only programmatic functions but interior design strategies and features. Overall essential needs were identified as: flexible and collaborative small meeting spaces, natural daylighting, connections to nature, and options for informal work spaces.

Fig 15: Key Words Survey Results

Fig 17: Occupant Survey Results

Fig 16: Amenities Survey Results

Fig 18: Occupant Time Survey Results

SOLAR DECATHLON DESIGN CHALLENGE 2021 VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY The overall design of the interior space appeals to a broad range of users so that the students, staff and faculty members can optimize productivity in a comfortable and healthy environment. Lighting fixture temperature and controls are regulated to promote circadian rhythm. The primary typical light fixture throughout is a LightArt Acoustic light fixture that integrates recyled acoustic felt into the fixture itself to seamlessly enhance the acoustic quality of the spaces with an NRC rating of .75-1.0 depending on the length of the fixture.

Fig 19: LightArt Acoustic light feature

GROUND FLOOR Fig 20: Ground floor materials key plan

SOLAR DECATHLON DESIGN CHALLENGE 2021 VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY Preserved greenery walls are installed in various areas throughout the interior to enhance comfort and lower stress levels. Screen partitions filled with greenery also contribute to the biophilic landscape of the interior as well as create an acoustic barrier in larger open spaces. In order to minimize occupant maintenance, higher traffic areas are finished with a durable sustainable material such as terrazzo, instead of wood or carpet. Materials were chosen with due diligence to comply with WELL Building Standards for non-toxic, non-VOC emitting, and transparent labeling materials. Refer to Occupant Comfort and Environmental Quality for more on WELL materials. The finish axon plans below highlight the distribution of materials throughout the interior project. All plumbing fixtures follow the sustainable guidelines from the Department of Energy, with limiting flow rates of 1.5G per minute as well.

SECOND FLOOR Fig 21: Second floor materials key plan

SOLAR DECATHLON DESIGN CHALLENGE 2021 VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY

THIRD FLOOR Fig 22: Third floor materials key plan

SOLAR DECATHLON DESIGN CHALLENGE 2021 VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY

2.8 Occupant Comfort + Environmental Quality Sustainability and energy efficiency go hand in hand with well-being. The International WELL Building Standard was implemented as a framework of design strategies because it combines best practices in design and construction with evidence-based health and scientific research that allowed the project to provide high environmental quality and occupant comfort. There are 10 total concepts in the standard that comprehensively address environmental quality and occupant comfort the following strategies were taken:

AIR Overall passive strategies were prioritized for HVAC systems with controls to effectively monitor mechanical and natural ventilation strategies. To meet and surpass feature A07, 100% of occupiable spaces have operable windows with an openable window area of 4% of the occupiable floor area. Controls monitor and measure indoor air quality as well as outdoor air quality with sensors that notify occupants when air quality is appropriate to operate windows. Refer to Engineering for specific system design, load calculations, equipment sizing and duct sizing.

LIGHT A circadian lighting design system is utilized to promote a healthy circadian rhythm. Reduced exposure to daylight has been linked to the onset of depression and impairment of cognitive function in individuals. Studies have shown strong links between better views, brighter light, and better performance in office environments. Understanding this, and noting the substantial stated need for natural light for productivity from the occupant survey - lighting design focused on daylighting strategies by incorporating light wells and laying out 70% of workstations within 25ft of transparent envelope glazing with a visible transmittance of >40%. 24

SOLAR DECATHLON DESIGN CHALLENGE 2021 VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY Features to Enable More Productivity

Fig 23: Features Survey Results

Most Important Features to Productivity (Scale 1 - Least to 5 - Most

Fig 24: Important Features Survey Results

WATER Moisture management strategies included designing the building envelope to maintain its existing structure and apply a new facade as a rain screen creating effective outside moisture source control. The entryway vestibule uses the high performance NanaWall SL70 as an NFRC certified and energy rating curtain wall system, an integrated walk-off mat, and a vestibule to mitigate infiltration.

Fig 25: Performance test results on NanaWall SL70

SOLAR DECATHLON DESIGN CHALLENGE 2021 VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY MOVEMENT The design shifts focus towards an aesthetic staircase and circulation pathways to promote active movement. The project highlights the performance of movement by renovating the existing stairwell to also act as a light well with outdoor views and creating a new stairwell featured prominently on the building massing.

THERMAL COMFORT By implementing a radiant heating and cooling system on the existing slab flooring for 100% of occupiable space, the radiant thermal design shifts energy loads off typical mechanical air ventilation systems as a more energy efficient strategy as well as a more occupant comfort driven strategy with less drafty/noisy mechanical ventilation. Refer to Engineering for specific system design, load calculations, equipment sizing and duct sizing.

NOURISHMENT Mindful eating spaces were designed like the student lounge/coffee bar as separate zones to create an intentional eating space that separates food/eating acoustically, visually, and olfaction. The upper courtyard provides onsite food production by providing a harvestable gardening space and the building itself is located within .25 miles to a weekly farmers market.

GROUND FLOOR Fig 26: Ground floor nourishment key plan

SOLAR DECATHLON DESIGN CHALLENGE 2021 VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY

SECOND FLOOR Fig 27: Second floor nourishment key plan

THIRD FLOOR Fig 28: Third floor nourishment key plan

SOLAR DECATHLON DESIGN CHALLENGE 2021 VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY SOUND Acoustic design strategies include a typical interior partition type of a 6” 25 GA stud size spaced 24” on center with 3” of insulation and 2 ½” layers of GWB on each side to achieve an STC rating of 50. Where partition stud size is less than 6” double sided layers of GWB are maintained lowering the minimum STC rating to 45. Sound reducing surfaces are also integrated into the design strategy through biophilic patterned wood screens that absorb sound reverberation, wood trimmed ceiling clouds that mitigate reverberation, acoustic-rated light fixtures with NRC ratings of .751.0 depending on the fixture length, and fabric wrapped acoustical wall panels.

Fig 30: LightArt acoustic performance graph

Metal Runner, Secured To Slab 11D - 25 GA Metal Stud Metal Runner, Secured To Slab Continuous Acoustical Sealant (Both Sid 11D - 25 GA Metal Stud 1/2” GYP.Sealant Board x2 (Both Sides) Continuous Acoustical (Both Sides) 1/2” GYP. Board x2 (Both Sides)

Sustainable Recycled Materials Insulatio (24” O.C. 3” Sustainable Recycled Materials Insulation (24” O.C. 3”) Metal Runner, Secured To Slab

Continuous Acoustical Sealant (Both Sid Metal Runner, Secured To Slab Profile of Tarrazzo Floor Finish Continuous Acoustical Sealant (Both Sides) Profile of Tarrazzo Floor Finish

Typ. Interior Wall Det Typ. Interior Wall Detail

Fig 29: Typical Interior Wall Detail

SOLAR DECATHLON DESIGN CHALLENGE 2021 VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY MATERIALS Materials specified are not only sustainable materials but are nontoxic materials that contain less than 100ppm Halogenated flame retardants (HFR),Per- and polyfluoroalkyl substances (PFAS), Lead, Cadmium, Mercury. Materials are also compliant with VOC thresholds as established by SCAQMD Rule 1168 (Adhesives and Sealants, 2017) restricted further in specifications. And finally materials selected are Declare label products to establish material transparency.

MIND Design strategies, such as increasing nature contact within built spaces, has been linked with numerous health promoting benefits, including decreased levels of depression and anxiety, increased attentional capacity, better recovery from job stress and illness, increased pain tolerance and increased psychological well-being. To address mental health of occupants, restorative opportunities are provided such as the Quiet Room which acts as a nap space or restorative space. Access to nature is also enhanced through the expansion of the courtyard design and addition of an upper courtyard with rich natural systems and landscaping. This concept also crosses over into the use of biophilic patterns throughout the design.

GROUND FLOOR Fig 31: Ground floor biophilic pattern key plan

SOLAR DECATHLON DESIGN CHALLENGE 2021 VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY

SECOND FLOOR Fig 32: Second floor biophilic pattern key plan

SOLAR DECATHLON DESIGN CHALLENGE 2021 VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY

THIRD FLOOR Fig 33: Third floor biophilic pattern key plan

COMMUNITY Finally accessibility and universal design is implemented as a holistic approach to circulation pathways and goes above and beyond standard code requirements to support an inclusive environment.

SOLAR DECATHLON DESIGN CHALLENGE 2021 VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY

2.9 Energy Performance PHOTOVOLTAICS There are two main methods of solar collection this renovation used to capture light and store it as electrical power; solar shingles on the existing 1001 building and photovoltaic panels on the 1021 renovation. By maximizing the roof plan square footage on 1021 Prince St and incorporating PVs on the sun-facing side of the shades, the PV panels are able to efficiently capture roughly 183k kWh yearly. Savings to the electricity bill will accumulate to over $400k during the lifetime of these panels alone. Regarding the existing roof of 1001, the solar shingles stimulate about 105 Watts per square meter. The southern looking portions of 1001 accompany about 310 square meters of area. This equates to solar generation of 1001 to be around 325 kWh of daily solar gain. In total, there are 237 solar panels on the roof. These panels individually produce 340 Wp as their maximum power generation. In the case that power use exceeds power gen, the southern façade, located on Prince St, we have installed Colt’s Shadovoltaics LS-2 that reduce heat gain and glare while maximizing natural daylighting and generating electricity via photovoltaics.

Fig 34: Photovoltaic Information

Fig 35: Photovoltaic layout

SOLAR DECATHLON DESIGN CHALLENGE 2021 VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY

Fig 36: Monthly solar generation chart

Fig 37: Building Grid Interaction Diagram

SOLAR DECATHLON DESIGN CHALLENGE 2021 VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY ENERGY ANALYSIS Heating Energy Performance was refined iteratively with Revit modeling and Insight energy analysis, the latter being a tool that leverages Cooling EnergyPlus in its calculations. Our EUI targets to achieving net zero energy were adopted from ASHRAE’s Advanced Energy Design Interior Guide for Small to Medium Office Buildings, Lighting shifting the initial target source EUI of 75 to 68.5 and site EUI to 21. Our base values are Interior from the first iteration of the building with Equip. the extension into the east parking lot. Our Fig 38: End use chart reduction of the window to wall ratio came more commonly occupiable spaces such as studios and offices. Making use of ground heat allowed a more efficient heat pump, since geothermal systems have an efficiency range of up to 600 percent compared to air-source heat pumps with ranges of around 150-300 percent.

EUI (kBTU/ft2)

We recognize most of the end uses of energy for internal-load dominated buildings comes from the interior lighting and equipment and contribute heavily to higher cooling loads. By adopting more efficient appliances and lighting fixtures and implementing sensors for occupancy control we simulated notable reductions in overall cooling loads.

Base

Reduce WWR

Improve Envelope

High Efficiency Heatpump

Lighting

Plug Load Control

Daylight/ Occupancy Control

Ground Source

ERV

Fig 39: Energy Saving Strategies

PLUG LOADS Plug loads start to become a significant draw once other loads are minimized. Reduction of these machine and time specific loads is difficult to manage; often metering teams analyze a building for 8 weeks in 15-minute intervals to determine true loads. But minimization of these loads is usually based around power management. Reducing plug loads means either reducing the draw from the machine in either a more efficient machine or turning it off when not in use to reduce idle time. Occupancy sensors monitor rooms for movement to communicate with smart power strips and sockets to shut off power when not in use. Desktop computers, 34

SOLAR DECATHLON DESIGN CHALLENGE 2021 VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY monitors, printers, plotters, and scanners with power management modes shall be phased in while staff and students themselves are encouraged not to leave device chargers or other trickle draws plugged in outside of use. Education of students and staff on the workings of the Wireless communication System/Power management system is integral to reducing plug loads as it is ultimately up to the occupants to utilize these systems. WINDOWS The existing wooden framed double pane Pella windows are replaced by aluminium Glo triple pane windows. The new U-value of these windows is .14. This is an internally loaded building, so there is a low-E coating placed on the 2nd surface from the exterior. In addition to an argon gas fill, the frame is thermally broken to avoid heat transfer through the building envelope. This is a European company, and there are manufacturers in the US, the closest being Minnesota. The new south facing windows have been chosen due to their higher solar heat gain coefficient and low U-value.

Fig 41: Improved Thermal Envelope

Fig 40: Glo Triple Pane Window Detail

Fig 42: Existing Thermal Envelope

RAINWATER Rain Water is collected from the sloped roof of the 1001 building on campus and can be used for irrigation. The approximate area of the roof on the 1001 building is 8200 square feet, meaning it is possible to harvest 219,669 gallons of water per year. This water is distributed to above ground rain barrels around the perimeter of the building and can be used for irrigation. This allows an educational and visual connection of re-use on the site. A gutter debris screen is attached to the gutter to avoid debris from entering the system. 35

SOLAR DECATHLON DESIGN CHALLENGE 2021 VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY EXTERIOR ENVELOPE The exterior envelope of the building varies from new construction to existing structure, but achieves similar insulative values via new insulation and finishes. A rain screen system allows a many materialled facade and a double insulation technique: in the stud wall and on the exterior without worry of moisture trapping and mold and mildew growth. Exterior finishes are of Laminated Bamboo, polycarbonate, and recycled brick from deconstructed sections of the project. Flashing around all openings and endpoints combined with an air and vapor barrier maintain a tight air and water seal around the entire envelope. This vapor barrier protects the rock wool rigid insulation on the exterior while soy-based spray foam creates a tight seal in the existing cavity from the metal stud wall. On the new construction walls, 6” Structural Insulated Panels latch to the CLT structure to create continuous thermal protection and soy spray foam stud walls once again help to increase overall R Value (both achieve R35). Materials like soybased spray foam and rockwool insulation also offer significant reduction in off-gassing, improving air quality.

Fig 43: New Construction Section Detail

Fig 44: Improved Existing Section Detail

Roof thermal insulation is covered with many layers of the same Rockwool Comfortboard 110 to achieve an r value from 62-76 from new to remodel construction respectively. The thermal properties of our proposed wall were studied through WUFI 2D, and the efficiency of the added insulation is shown. To avoid unnecessary use of cement a HDPT wooden foundation wall will be constructed for the new foundation section. A treated footing plate is wrapped in moisture barrier and is topped with a treated wall plate to form the base for 2x10 wall studs. ¾” marine grade sheathing forms an exterior face that is covered with moisture barrier that extends 2’ past fill level. This cavity is then filled with soy-based spray foam to create a water and thermal barrier for the subgrade space. A final layer of 1-hour rated gypsum is applied as a finish to the basement. 36

SOLAR DECATHLON DESIGN CHALLENGE 2021 VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY

3.0 APPENDIX A: DESIGN RENDERINGS 3.1 STREET VIEW

SOLAR DECATHLON DESIGN CHALLENGE 2021 VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY 3.2 COURTYARD VIEW 1

3.3 COURTYARD VIEW 2

SOLAR DECATHLON DESIGN CHALLENGE 2021 VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY 3.4 UPPER COURTYARD VIEW 1

3.5 UPPER COURTYARD VIEW 2

SOLAR DECATHLON DESIGN CHALLENGE 2021 VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY

3.6 ASSEMBLY SPACE

SOLAR DECATHLON DESIGN CHALLENGE 2021 VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY 3.7 PIN UP SPACE

3.8 STUDY AREAS

SOLAR DECATHLON DESIGN CHALLENGE 2021 VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY

4.0 APPENDIX B: CONSTRUCTION DOCUMENTS

1 A300

--2

MECHANICAL ROOM 390 SF

A300

-------

-----

LOCKER ROOM 486 SF

BIKE STORAGE 470 SF

---

SOLAR DECATHLON DESIGN CHALLENGE 2021 VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY

A201 1 144' - 4 27/32" 107' - 11 5/8"

16' - 8"

1' - 2"

23' - 8"

1' - 6"

34' - 5 7/32"

20' - 5 1/4"

0' - 4"

23' - 0 3/4"

1' - 6"

17' - 11 1/8"

1' - 0"

33' - 5 7/32"

1' - 0"

3' - 0" 0' - 8"6' - 5 13/16"

8' - 8 1/4"

4' - 4"

8' - 8 1/4"

4' - 4"

4' - 4 1/4"

8' - 8 1/4"

4' - 4"

4' - 4 1/4"

8' - 8 1/4"

4' - 1"

4' - 7 5/32"

12' - 1 5/16"

36' - 8"

16' - 2" 1' - 0" 5' - 3" 13' - 5 3/8"

13' - 5 3/8"

0' - 9 3/8" 0' - 11 1/8" 5' - 4 1/32"

5' - 4 1/32"

2' - 6 1/2" 8' - 2"

13' - 6 1/32"

0' - 0 5/16" 9' - 2 7/8" 81' - 7 13/32"

1' - 8 1/4" 4' - 0 1/8" 1' - 8 1/4"

4' - 3 29/32"4' - 3 1/2" 4' - 4 1/4"

8' - 8 1/4"

Assembly Tiered Seating 1705 SF

FIRE STAIR 286 SF

11' - 11 13/16"

2' - 1 15/32" 2' - 1"

13' - 1 15/16"

8' - 8 1/4" 1' - 10 7/32"

15' - 5 3/32"

27' - 5 3/8"

21' - 6 1/2"

1-c

1-a

3' - 0" 4' - 7 9/16" 3' - 0" 5' - 4"

6' - 0"

18' - 11 21/32"

TECH 45 SF

6' - 2"

STOR 46 SF

REFRESHMENTS BAR 253 SF

5' - 0 7/16" 0' - 7"

34' - 2 3/32"

5' - 2"

CLOSET 72 SF

3' - 9"

6' - 2 9/16" 2' - 0" 3' - 0"

2' - 9 17/32"

3' - 5 1/2" 6' - 4" 5' - 5 9/32"1' - 0"3' - 4"

2'1'- -0"11 21/32"6' - 0" 2' - 5 21/32"

16' - 2 3/16"

ENTRY 400 SF

GALLERY/LOBBY 644 SF

1' - 61'13/16" - 6 3/8" 6' - 0"

A201

34' - 2 3/32" 1' - 1 9/16" 6' - 0"

29' - 4 5/8" 20' - 0 9/16" 22' - 4 11/32"

SHOP CLASSROOM 569 SF

0' - 6"

11' - 11 21/32"

5' - 4 1/2"

SHOP OFFICE 98 SF

RESTROOMS 334 SF

13' - 1 1/2"

27' - 4 7/8" 1' - 0" 5' - 6 5/8" 9' - 10 9/16"

62' - 8 7/16"

STUDENT LOBBY 237 SF

18' - 0 1/16"

146' - 4 3/8"

A200

WOOD SHOP 4844 SF

23' - 2 5/8"

1' - 11"

3' - 10"0' - 8"

1'1'- -0"8 1/2"

8' - 7 1/4"

43' - 4 5/16"

A200

First Floor Plan 3/64" = 1'-0"

Solar Decathlon 2021 SOLAR DECATHLON DESIGN CHALLENGE 2021 VT WAAC VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY

1021 Prince St Alexandria, VA 22314

91' - 0"

53' - 4 27/32"

1' -2'0"- 8 0'5/8" - 4 3/4" 8' - 5 3/4" 0' - 4 3/4" 5' - 6 1/4" 0' - 4 1/4" 5' - 8 3/4" 0' - 4 3/4" 6' - 3 1/4" 0' - 4 3/4" 4' - 11 1/4" 0' - 4 4' 3/4" - 0 0' 1/8" - 4 1/4"7' - 2 7/8"0' - 4 3/4" 7' - 6 11/32" 0' - 43'3/4" - 80'1/4" - 4 3/4" 6' - 3 17/32" 0' - 44'3/4" - 10 15/16" 0' - 4 3/4" 8' - 6 1/4" 0' - 4 3/4"8' - 2 1/16" 0' - 11"

7' - 11 7/8"

7' - 6 11/32"

4' - 10 15/16" 0' - 4 3/4" 8' - 6 1/4"

33' - 5 7/8"

0' - 11 11/32"

8' - 6 13/16" 0' - 11"

ELEC 33 SF

2' - 4" 3' - 0" 3' - 5" 3' - 6"

FIRE STAIR 286 SF

DN UP

RESTROOMS 361 SF

LASER CUTTER ROOM 158 SF

3' - 0" 4' - 6 1/32"

17' - 3 1/2"

38' - 5 1/2"

UPPER COURTYARD 2360 SF

11' - 1 1/32"

25' - 1 1/2"

MECH/STOR 76 SF

MECH 24 SF

2' - 5 21/32"

MEETING 170 SF

17' - 0 27/32"

OFFICE 115 SF

0' - 11 1/2"

OFFICE 115 SF

9' - 3 1/8"

OFFICE 115 SF

8' - 3 1/2"

OFFICE 115 SF

3' - 1 7/8" 3' - 6" 2' - 6" 3' - 0"

4' - 6"

OFFICE 115 SF

STUDIO WORK SPACE 2386 SF

0' - 4 3/4" 8' - 5 5/8" 0' - 9 1/8" 3' - 2 5/8"

12' - 4 15/32"

01 3/

25' -

3/1 64"' 1 01 01 3/1 64"' 1 4' - 0 27/32"

6' - 3" 15' - 0"

4' - 2"

0' -3'9"- 11 1/4"4' - 3 1/2" 4' - 4 1/4"

4' - 4"

4' - 4 1/4"

4' - 4"

4' - 4 1/4"

4' - 1"

4' - 2" 0' - 9"

2' - 5 1/8"

2' - 9 1/2" 4' - 1 1/4" 23' - 4 21/32"

FLEX CLASSROOM 851 SF

19' - 10"

OPEN MEETING LOUNGE 1190 SF

5' - 4"

3' - 0" 4' - 7 9/16" 3' - 0"

PIN-UP PIT 649 SF

29' - 5 21/32"

4' - 0"

3' - 0"

MECH 75 SF

7' - 9 11/16"

3' - 0"

4' - 7"

4' 1

13' - 10 15/16"

WAAC BAND ROOM 272 SF

164" ' -1

01 3/1 64"' 1

MAKER + LAYOUT COLLAB SPACE 1066 SF

01 3/

16"

2' - 5 7/16" 6' - 0"

20' - 10 7/32"

29' - 7 1/32" 2' - 6" 20' - 3 1/8"

11' - 2 1/32"

0' - 8"

5' - 8 3/4" 4' - 0 1/8"

1' - 0"

0'0'--063/16" 7/16"

37' - 1 7/8" 1' - 0"5' - 5 3/16" 0' - 4"

18' - 1 3/16" 3' - 0"

9' - 0"

6' - 3 1/4"

11' - 4 11/32"

0' - 11 1/2"7' - 9 7/16" 0' - 6"

OFFICE 115 SF

11' - 11 21/32"

11' - 6 5/8"

6' - 5 3/4"

0' - 4 7/8" 0'3'- 6" - 7 31/32" 0' - 6"

12' - 11 1/2"

144' - 9 9/16"

8' - 5 3/4" 0' - 4 3/4" 5' - 6 1/4"

3' - 0" 2' - 4 7/8" 3' - 0" 2' - 8" 3' - 0" 2' - 8"

9' - 0"

0' - 8"

4' - 1 3/8"

17' - 11 5/8"

44' - 0"

Second Floor Plan 3/64" = 1'-0"

Solar Decathlon 2021 SOLAR DECATHLON DESIGN CHALLENGE 2021 VT WAAC VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY

1021 Prince St Alexandria, VA 22314

91' - 0"

2' - 1 7/8"

16' - 3 15/16"

0' - 6" 8' - 0 13/16" 0' - 6"

13' - 5"

16' - 3 15/16"

9' - 0 13/16"

13' - 5"

0' - 6"

3' - 7 7/16"

0' - 11"

5' - 0 7/16"

8' - 3 1/2"

4' - 6"

HUDDLE 130 SF

3' - 3 1/8" 3' - 4 7/8" 3' - 0" 3' - 5" 3' - 0" 3' - 0" 3' - 0" 2' - 9" 3' - 0"

3' - 0" 2' - 4 7/8" 3' - 0" 2' - 8" 3' - 0" 2' - 8"

STUDIO WORK SPACE 872 SF

STUDIO WORK SPACE 1288 SF

18' - 1 3/16"

HUDDLE 131 SF

MECH/STOR 80 SF

MECH 15 SF

ELEC 28 SF

10' - 6 1/4"

1' - 0"

3' - 11 7/32"3' - 0" 4' - 6 1/32" 11' - 5 1/4"

21' - 10 1/4"

5' - 5 7/16"

0' - 8"

6' - 0"

2' - 6 5/8" 0' - 8"

11' - 3 11/32" 0' - 7 29/32"

11' - 11 1/4"

0' -3'9"- 11 1/4"3' - 8 0' 1/4" - 7 1/4" 4' - 4 1/4" 0' - 11 1/16" 0' - 6 13/16" 0' - 9 9/16"

0' - 4 3/4" 7' - 5 11/32"

4' - 4"

0' - 4 3/4" 7' - 5 19/32"

4' - 4"

4' - 4 1/4"

0' - 4 3/4" 7' - 5 19/32"

4' - 4"

38' - 1 9/16"

81' - 2 3/4"

0' - 11 3/4" 5' - 6 7/8" 0' - 4 3/4"

22' - 9 3/4"

FLEX WORK LOUNGE 818 SF

0' -1'4-0'3/4" 7- 5/8" 4 3/4"

3' - 5 21/32" 4' - 0"

2' - 6"

5' - 6 7/32" 3' - 0" 4' - 7 9/16" 3' - 0"

4' - 1"

STUDIO WORK SPACE 1550 SF

13' - 4 5/8"

3' - 0" 3' - 0 3/16"3' - 2'0"- 11 13/16" 3' - 0"

7' - 10 9/16"

4' - 0"

3' - 0"

12' - 4 11/32"

Refrigerator

CLO 26 SF

19' - 9 7/16"

STUDENT COFFEE/SNACK BAR 1392 SF

0' - 6"

15' - 0"

11' - 11 21/32"

1' - 7"

1' - 6 15/16" 6' - 0"

25' - 1 7/32"

CLASSROOM 521 SF 34' - 2 1/4"

QUIET ROOM 331 SF 0' - 4 3/4"

11' - 4 11/32"

3' - 0"

RESTROOMS 361 SF

20' - 5 21/32"

33' - 4" 20' - 1 9/16"

0' -1'4-0'3/4" 8-1/2" 4 3/4" 13' - 3 3/4"

20' - 7 7/8"

0' - 6" 6' - 0 5/8" 0' - 4 3/4"

0' - 6"

3' - 1 7/8"

HUDDLE 131 SF

18' - 6 1/16"

34' - 4 1/2" 62' - 10"

1' - 0"5' - 4 3/16" 0' - 6" 9' - 0" 1' - 1 1/2" 7' - 9 7/16" 0' - 6" 11' - 9 5/8"

11' - 3" 0' -4'6"- 3 9/16" 0' - 6" 8' - 8 13/16" 0' - 4 5/8"

29' - 4 1/16"

0' - 6"

20' - 8 7/8"

37' - 7 1/2"

20' - 8 7/8"

2' - 3 5/8" 0' - 8"

2' - 0 9/16" 0' - 6"

0' - 4 3/4"

4' - 8 15/16"

34' - 1 5/8"

14' - 4 3/4"

0' - 11"

14' - 4 3/4"

2' - 3 1/2"

2' - 7 3/8" 0' - 6"

4' - 1 3/8"

9' - 0"

0' - 2'4 -3/4" 3 5/8" 0' - 8"

1' - 0"

0' - 4" 1' - 4 3/8" 0' - 6"

4' - 4 1/4"

4' - 1"

0' - 4 7/8" 7' - 4 19/32"

7' - 6 15/32"

4' - 2" 0' - 8 1/2" 0' - 10 21/32" 1' - 2 3/4" 0' - 9"

44' - 0 1/2"

Third Floor Plan 3/64" = 1'-0"

Solar Decathlon 2021 VT WAAC

SOLAR DECATHLON DESIGN CHALLENGE 2021 VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY

1021 Prince St Alexandria, VA 22314

1' - 0"

1 3' - 7 1/2"

8' - 2 5/8"

3' - 7 1/2"

19' - 10 3/8"

3' - 10 1/4"

8' - 3"

13' - 2 1/4" 19' - 11 1/8"

1' - 0" 4' - 11 13/16" 1' - 1 1/2"

3' - 8"

3' - 0"

0' - 8"

19' - 10 3/8"

9' - 4 7/8"

3' - 7 1/2" 9' - 8 9/16" 3' - 7 1/2"

23' - 4 1/2"

4' - 5 11/16"

61' - 2 5/8"

3' - 7 1/2"

9' - 7"

18' - 1 5/8"

3' - 7 1/2"

3' - 11 3/4"

0' - 6 3/4"

3' - 7 1/2"

1' - 0"

3' - 8"

23' - 1 1/8"

42' - 5 1/4"

1' - 10 7/8"

1' - 0"

20' - 8 9/16"

20' - 10 1/4" 1' - 3 1/2"

138' - 10 1/4"

19' - 10 3/8"

6' - 11 1/16"

4' - 2 1/2"

3' - 0"

11' - 4 5/8"

8' - 3 5/8"

5' - 7 1/4"

0' - 5 11/16"

3' - 7 1/2"

138' - 10 1/4"

1' - 10 7/8"

36' - 9"

4' - 11 1/8"

3' - 7 1/2"

0' - 4 7/8"

16' - 10 9/16"

RAMP UP

1' - 3"

19' - 6 1/2"

63' - 2 1/8"

1' - 0" 66' - 9 1/2" 1' - 3 1/2"

8' - 0 1/2"

6' - 4"

66' - 7"

Existing Basement Floor 1/16" = 1'-0"

Solar Decathlon 2021 SOLAR DECATHLON DESIGN CHALLENGE 2021 VT WAAC VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY 1021 Prince St Alexandria, VA 22314

Roof Plan 3/64" = 1'-0"

Solar Decathlon 2021 SOLAR DECATHLON DESIGN CHALLENGE 2021 VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY VT WAAC

1021 Prince St Alexandria, VA 22314

1' - 0"

1 3' - 7 1/2"

8' - 2 5/8"

3' - 7 1/2"

19' - 10 3/8"

3' - 10 1/4"

8' - 3"

13' - 2 1/4" 19' - 11 1/8"

1' - 0" 4' - 11 13/16" 1' - 1 1/2"

3' - 8"

3' - 0"

0' - 8"

19' - 10 3/8"

9' - 4 7/8"

3' - 7 1/2" 9' - 8 9/16" 3' - 7 1/2"

23' - 4 1/2"

4' - 5 11/16"

61' - 2 5/8"

3' - 7 1/2"

9' - 7"

18' - 1 5/8"

3' - 7 1/2"

3' - 11 3/4"

0' - 6 3/4"

3' - 7 1/2"

1' - 0"

3' - 8"

23' - 1 1/8"

42' - 5 1/4"

1' - 10 7/8"

1' - 0"

20' - 8 9/16"

20' - 10 1/4" 1' - 3 1/2"

138' - 10 1/4"

19' - 10 3/8"

6' - 11 1/16"

4' - 2 1/2"

3' - 0"

11' - 4 5/8"

8' - 3 5/8"

5' - 7 1/4"

0' - 5 11/16"

3' - 7 1/2"

138' - 10 1/4"

1' - 10 7/8"

36' - 9"

4' - 11 1/8"

3' - 7 1/2"

0' - 4 7/8"

16' - 10 9/16"

RAMP UP

1' - 3"

19' - 6 1/2"

63' - 2 1/8"

1' - 0" 66' - 9 1/2" 1' - 3 1/2"

8' - 0 1/2"

6' - 4"

66' - 7"

Existing Basement Floor 1/16" = 1'-0"

Solar Decathlon 2021 SOLAR DECATHLON DESIGN CHALLENGE 2021 VT WAAC VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY 1021 Prince St Alexandria, VA 22314

1 0' - 9 3/4"

0' - 9 3/4" 14' - 1 7/8"

17' - 3 7/8" 17' - 2 1/4"

11' - 7 1/4"

6' - 11"

3' - 6 1/2"

9' - 0 5/8"

3' - 2"

3' - 6 1/2"

17' - 0 1/2"

16' - 9 1/4"

3' - 6 1/2"

10' - 1" 6' - 4 1/4" 20' - 4 3/8"

10' - 11 5/16" 5' - 0" 0' - 8"

3' - 8 1/8"

26' - 3 3/8"

8' - 7"

17' - 10"

3' - 11 1/4"

133' - 10 1/8"

3' - 6 1/2"

11' - 8 5/8"

10' - 4 1/4"

2' - 1 7/16"

DN 9' - 0 1/4"

24' - 0 1/4" 2' - 1"

18' - 6"

1' - 10"

7' - 2"

9' - 4"

7' - 9"

6' - 4"

4' - 6 11/16"

6' - 11 3/4"

7' - 9 1/4"

50' - 8 1/2" 3' - 6 1/2"

2' - 2 3/4"

9' - 8 3/8" 3' - 6 1/2"

3' - 6 1/2"

17' - 3 1/2"

4' - 0 3/8"

0' - 8" 3' - 9 1/2"

0' - 5 3/8"

14' - 7"

22' - 3"

3' - 7 1/2" 3' - 4 1/2" 3' - 4 5/8" 3' - 4 3/8" 3' - 7 1/2"2' - 9 13/32" 0' - 7 3/32" 3' - 1 1/2" 3' - 6 1/2" 2' - 9 3/4"

9' - 5 3/4" 0' - 11 29/32"

63' - 10"

3' - 6 1/2"

24' - 6 5/8"

7' - 11 1/16"

9' - 9 9/16"

0' - 4 15/32"

3' - 8 1/16"

3' - 6 1/2"

0' - 5 3/8" 4' - 6 7/8"

0' - 5 3/8"

8' - 10 3/4"

8' - 3 7/8"

6' - 0"

3' - 6 1/2"

0' - 8"

3' - 10 1/8"

0' - 8" 10' - 7 5/8"

EL EV .

13' - 1 1/2"

3' - 6 1/2"

0' - 4 7/8"

6' - 10 9/16"

3' - 11 1/4"

0' - 11 5/8"

4' - 2" 6' - 0"

0' - 6 3/4"

2' - 3 9/16"

0' - 6 3/4"

3' - 1 1/8"

17' - 8 1/16"

29' - 3 3/4"

34' - 8 3/8"

3' - 6 1/2"

0' - 6 3/4"

0' - 11" 66' - 5" 21' - 10 5/16"

1' - 6"

18' - 9 13/16"

2' - 10 15/16" 0' -1'9 -3/4" 8 11/16" 3' - 0" 1' - 3 5/16"

22' - 3" 17' - 3 3/8"

5' - 11 3/8" 11' - 10 3/4"

11' - 5"

18' - 4 3/8" 4' - 0 23/32"

43' - 7"

01 - EXISTING FIRST FLOOR 1/16" = 1'-0"

Solar Decathlon 2021 SOLAR DECATHLON DESIGN CHALLENGE 2021 VT WAAC VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY 1021 Prince St Alexandria, VA 22314

0' - 8"

1 0' - 8"

3' - 6 1/2" 6' - 5 1/2"

0' - 4 7/8"

11' - 11"

3' - 4 3/4"

3' - 6 1/2" 11' - 6 1/8"

11' - 3 5/8" 1' - 3 1/4" 0' - 4 7/16"

0' - 2 3/4"

3' - 3 9/16" 0' - 3 15/16"

3' - 6 1/2"

18' - 8" 3' - 4 7/16" 3' - 6 1/2" 0' - 5 1/8"

3' - 5 7/8" 14' - 10 7/8"

133' - 10 1/8"

3' - 6 1/2"

11' - 6 5/8"

8' - 6"

27' - 10 3/8"

EL EV .

DN 0' - 7 15/16"

12' - 2"

10' - 7 5/8"

3' - 6 1/2"

10' - 7 1/8"

3' - 6 7/8"

47' - 5 7/8"

19' - 0 5/8"

0' - 3 3/4" 0' - 4 1/8"

0' - 4 7/8" 6' - 6"

5' - 5 7/8" 3' - 6 1/2"

4' - 6 11/16"

0' - 4 7/8"

3' - 6 1/2"

9' - 10"

7' - 7 3/4"

13' - 1 3/4"

10' - 2 1/4"

2' - 0"

7' - 5"

1' - 7 7/16" 2' - 6 1/4"

9' - 10 3/16"

0' - 4 7/8"

7' - 8"

3' - 6 1/2"

9' - 9 5/16" 3' - 6 1/2"

4' - 4 9/16"

5' - 1 1/8"

4' - 6 1/4"

0' - 4 7/8"

8' - 2 1/8"

14' - 10"

3' - 11 1/4"

0' - 4 7/8" 3' - 6 1/2"

15' - 5"

0' - 6"

6' - 2 9/16"

8' - 1"

11' - 3"

11' - 5 5/8"

14' - 11"

14' - 5 1/8"

3' - 6 1/2"

0' - 1 5/8"

4' - 5 1/4"

1' - 2 3/8"

5' - 0"

12' - 6 1/8"

1' - 10 1/2"

3' - 6 1/2"

12' - 11 1/2"

9' - 10"

31' - 6 7/8" 4' - 9 13/16"

UP 3' - 6 1/2"

17' - 11 1/2"

3' - 6 1/2"

0' - 4 7/8" 10' - 11 7/8"

Solar Decathlon 2021 SOLAR DECATHLON DESIGN CHALLENGE 2021 VT WAAC VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY 3' - 6 1/2" 18' - 5 3/4"

11' - 0"

0' - 8"

3' - 9 1/2"

8' - 2 7/8"

3' - 6 1/2"

48' - 1 3/8"

0' - 4 7/8"

18' - 9 1/2"

4' - 0 3/8"

0' - 4 7/8"

3' - 6 1/2"

9' - 9 3/16"

13' - 0 11/16"

11' - 6 1/2"

9' - 8 3/8"

0' - 4 7/8"

0' - 5 3/8"

17' - 6 3/4"

0' - 4 7/8" 8' - 7 5/8"

12' - 2 1/4"

0' - 4"

0' - 8"

12' - 6 1/8" 3' - 6 1/2"

15' - 4 3/8"

5' - 0 1/8"

0' - 4 7/8"

17' - 7 1/2"

3' - 6 1/2"

9' - 0 1/4"

0' - 10 1/8"

4' - 10 9/16"

0' - 4 7/8"

3' - 11 5/8"

14' - 6 7/8"

13' - 6"

14' - 1 7/8"

10' - 2 3/4"

16' - 5 3/8" 66' - 5 3/4" 0' - 8"

4' - 3 7/8"

12' - 10 1/2"

22' - 3"

0' - 8"

18' - 8"

3' - 9 1/8"

3' - 6" 11' - 6 3/8"

11' - 6 1/2" 3' - 6 1/2"

02 - EXISTING SECOND FLOOR 1/16" = 1'-0"

N 1021 Prince St Alexandria, VA 22314

0' - 8"

1 30' - 6 19/32"

3' - 6 1/2" 5' - 0 1/8"

38' - 3 11/16"

3' - 6 1/2"

8' - 7 5/8"

0' - 4 7/8"

4' - 5 1/4"

3' - 6 1/2" 6' - 5 1/2"

3' - 6 1/2"

11' - 10 3/4"

3' - 6 1/2" 8' - 6"

EL EV .

15' - 10 1/8"

15' - 4 3/4"

12' - 0 1/2"

3' - 5 3/4" 3' - 6 1/2" 3' - 2 1/4" 3' - 6 1/2" 6' - 10"

12' - 2 3/4"

8' - 0"

3' - 6 1/2"

9' - 10 1/2"

4' - 6 7/8"

0' - 4 7/8"

35' - 11 5/8"

3' - 5 7/8" 0' - 4 7/8" 3' - 6 1/2"

4' - 7 5/8" 12' - 5 1/4"

3' - 6 1/2"

26' - 9 9/16"

3' - 6 1/2"

9' - 11 1/2"

4' - 6 11/16"

0' - 4 7/8"

4' - 0 1/4" 4' - 6 3/16"

9' - 11 1/2"

3' - 6 1/2"

15' - 3 1/8" 41' - 8 3/4"

13' - 0 11/16"

2' - 10 3/4"

9' - 8 3/8"

0' - 4 7/8"

3' - 6 1/2"

4' - 0 5/16"

8' - 2 7/8"

3' - 6 1/2"

17' - 9 1/2"

3' - 9 9/16"

20' - 8 7/8"

20' - 3 5/8"

0' - 4 7/8"

13' - 5 3/8"

9' - 9 9/16"

0' - 4 7/8"

0' - 6 1/8"

0' - 4 7/8"

4' - 1 1/4"

9' - 11 1/2" 3' - 6 1/2"

26' - 4 3/4"

0' - 9 15/16"

3' - 6 1/2"

24' - 4"

0' - 8 5/8" 10' - 7 5/8"

4' - 11 1/4"

14' - 11 1/8"

133' - 10 1/8" 11' - 6 5/8"

13' - 5"

0' - 4 7/8"

6' - 0 1/4"

3' - 11 1/4"

12' - 6 3/4"

3' - 6 1/2"

11' - 5 7/8"

6' - 1 11/16"

8' - 1"

11' - 9 3/8"

0' - 4 7/8"

15' - 6 9/32"

3' - 6 1/2"

0' - 7 1/4"

2' - 3 1/2"

15' - 6 11/32"

3' - 6 1/2"

17' - 0"

13' - 2"

0' - 8"

14' - 1 7/8"

29' - 0"

17' - 3 3/8" 66' - 5 3/4" 0' - 8"

22' - 3" 0' - 8"

12' - 0 7/8"

1' - 1 1/2" 3' - 6 1/2"

03 - EXISTING THIRD FLOOR 1/16" = 1'-0"

Solar Decathlon 2021 SOLAR DECATHLON DESIGN CHALLENGE 2021 VT WAAC VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY N 1021 Prince St Alexandria, VA 22314

Ground Floor Finish Plan

Finish Legend

2 Second Floor Finish Plan

Interior Details

SOLAR DECATHLON DESIGN CHALLENGE 2021

Solar Decathlon 2021 VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY VT WAAC

3 Third Floor Finish Plan

Finish Schedule

1021 Prince St Alexandria, VA 22314

Basement Demo Plan 1/32" = 1'-0"

1st Floor Demo Plan 1/32" = 1'-0"

3rd Floor Demo Plan 1/32" = 1'-0"

Roof Demo Plan 1/32" = 1'-0"

Solar Decathlon 2021 SOLAR DECATHLON DESIGN CHALLENGE 2021 VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY VT WAAC

2nd Floor Demo Plan 1/32" = 1'-0"

1021 Prince St Alexandria, VA 22314

EQ EQ EQ EQ EQ

C2 C2 C2 C2

G G G G

8' - 9 3/16"

F1 F2

G G G G G G

F2 F2 F2

G G F2 G

F2 F1 F2 G F1 F2 G F2F1 F2 G

6 Plumbing Schedule

RCP - SECOND FLOOR 1/32" = 1'-0"

5' - 0" 5' - 0"

C1 ? C1 ? C1 ? C1 ? C1

G G G EQ

G G

EQ EQ EQ

G G G G G GWBA BULKHEAD A C1 9' - 0"C1 A.F.F. A A C1 C1 A A C1 C1 A A C1 A C1 A EQ

G G G G G GWB on Mtl Stud B1 9' - 0" A.F.F. A A A A

F1 F2

G G F2

G G G

5' - 0"

F1 F1

G G F2 F2 G G G G G G

C1 C1 C1

C1C1C1C1C1C1C1C1

F1 F2

RCP - FIRST FLOOR 1/32" = 1'-0" B1

22' - 9"

?C1 ? ?C1 ? ?C1 ? ??

F1 F1 F2 C1 C1 C1 C1 F1 F1 F1 F1 F2 GWB BULKHEAD 9' - 0" A.F.F. A A 28' A A - 7"A A A A A A A A A A A H H EQ

A A A A

C1 C1 C1 C1

A G G G G A A A A A A

G G G

G G G G G B1 G G

G G G

A A A A

C1 B1 C1 B1 C1 EQ

C1C1C1C1C1C1C1 GWB BULKHEAD F1 9'F1 F1 F1 - 0"F1 A.F.F.

RCP - THIRD FLOOR 1/32" = 1'-0"

4 Lighting Power Density

Solar Decathlon 2021 SOLAR DECATHLON DESIGN CHALLENGE 2021 VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY VT WAAC

5 Lighting Schedule

1021 Prince St Alexandria, VA 22314

Location of Wells for the Geothermal System

Solar Decathlon 2021 VT WAAC

SOLAR DECATHLON DESIGN CHALLENGE 2021 VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY

2 Typical Layout - Radiant Floor Heating and Cooling System

1021 Prince St Alexandria, VA 22314

3 Window Schedule

4 Door Schedule

5 Polycarbonate Detail

1 Section Details at Brick Rainscreen

Solar Decathlon 2021 VT WAAC

Section Details at Lamboo Rainscreen

SOLAR DECATHLON DESIGN CHALLENGE 2021 VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY

6 Section Detail at Greenroof

7 Nanawall Details

1021 Prince St Alexandria, VA 22314

SOLAR DECATHLON DESIGN CHALLENGE 2021 VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY

5.0 APPENDIX C: ENERGY PERFORMANCE INPUTS Total Building Area [ft2] ................................................................................................ 32,770 ft2 Weather File ...................................................................Arlington-Reagan Washington Natl AP VA USA TMY3 WMO#=724050 ENVELOPE Enclosure R-Value ..................................................................................................................... 35 Renovated Roof R-Value ........................................................................................................... 76 New Roof R-Value ...................................................................................................................... 63 Glazing U-Value ...................................................................................................................... 0.14 Window to Wall Ratio ............................................................................................................. 0.33 Lighting Power Densities [W/ft2] .......................................................................................... 0.91 Plug Load Densities [W/ft2] .................................................................................................... 0.5 HVAC Closed-Loop Geothermal Heat Pumps feed into a Radiant Floor System on each level. Energy Recovery Ventilators introduce fresh air into the building and improve indoor humidity levels.

SOLAR DECATHLON DESIGN CHALLENGE 2021 VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY

RENEWABLE ENERGY SUMMARY CALCULATIONS