Assignment 2 2 sam exeeson by Sam Exeeson

Peachey Residence A Study on Building Envelopes Sam Exeeson Materials and Methods Ryerson University June 27, 2015

03 // Intro 04 // South Facade Details 06 // North Facade Details 08 // Site Photographs

ACKNOWLEDGEMENTS Special thanks to Barry Sampson and Jesse Dormody of Baird Sampson Neuert Architects for sharing details, photographs and information about Peachey Residence. All photographs by Baird Sampson Neuert Architects All renderings by Sam Exeeson

First Floor

Peachey Residence

F W L

Second Floor

Foyer

Entry

Living

Located outside of Peterborough, Ontario, Peachey Residence is situated on a hill top overlooking valley farmland. Large high efficiency windows bring in daylight and offer panoramic views to the landscape. An exposed concrete shear wall provides thermal mass to regulate temperature extremes, while exterior overhangs and vertical fins control solar heat gain.

Dining

W Washroom

Kitchen

M Mechanical/Laundry

Study

Bedroom

Low and high operable windows and open, interconnected interior spaces facilitate natural ventilation and cooling, allowing the house to remain comfortable without mechanical air conditioning. The project also includes a solar wall to preheat intake ventilation air in winter, as well as solar thermal panels to heat domestically consumed water.

PROJECT DETAILS Architect Baird Sampson Neuert Architects Structural Consultant Blackwell Bowick Partnership Ltd. Mechanical & Electrical Consultant Dr. Ted Kesik

North Wall Section

South Wall Section

Total Area First Floor: 950 sqft Second Floor: 1000 sqft Type of Building Residential Construction Date 2006

South Facade Details

Roof Type 1

Window

−− Double glazed, argon filled, low-E glazing openable windows

−− Thermoplastic polyolefin (TPO) single-ply roofing membranes (WP) −− 3/4” Ply sheeting −− TJI Joist Framing −− Vented Roof Cavity filled w/ Icynene Spray Foam, R50 Type −− 6ml Poly Vapour Barrier −− 1/2” Drywall w/ Paint Finish

Second Floor Assembly

−− 5/8” Engineered Hardwood −− In-floor Heating covered with 2” Gypsum Topping −− 2X3/4” Sheeting −− TJI Joist Framing −− 1/2” Interior Drywall w/ Paint

−− Machine Coated Wood Siding 1X2 Pressure Treated Strapping −− Typar Building Paper (Air Barrier) −− 3/4” OSB Sheeting −− 1” Rigid External Insulation −− 2X6 Framing filled w/ R20 Spray Foam −− 6ml Poly Vapour Barrier −− 1/2” Interior Drywall w/ Paint

EX2

Exterior Wall Type 2

First Floor Assembly

−− In-floor Heating covered with 2” Polished Concrete topping −− 4” Structural Floor Slab −− 1” Rigid Insulation

Foundation Wall Assembly

−− −− −− −− −− −− −− −−

1/2” Concrete Board 1” Rigid External Insulation w/ Strapping 2-2X4 Pressure Treated Framing fastened to Wall Face 4” Rigid Insulation Spray Applied Bituminous Damp-proof 8”Concrete Wall 2-2x4 Pressure Treated Framing 4” Perforated Drain Pipe w/ Soak-in Clearstone

South Facade Details 5

Roof Type 1 −1− Facia assembly details: 5X8” cement panel with paint finish, cap with prefin metal flashing. −2− Continuous soffit vent is provided at the perimeter.

−3− The blueskin membrane creates a water seal at window connections, preventing moisture from entering the building.

−4− TJI joists are used for roof and floor construction.14”thick Icynene spray foam is filled into these joists to achieve R50.

−5− Ply sheeting provides slope to the perimeter of the roof, where water is collected in a scupper and a downspout discharges to grade. The water proofing membrane, Fire Stone Ultra ply is a flexible thermoplastic polyolefin roofing membrane that is produced with a polyster weft-inserted reinforcement. −6− Metal drip flashing is atttached to the bottom of the facia. Lab blueskin membrane covers the vertical edge of the flashing.

EX2 F2

External Wall Type 2 // Second Floor Assembly −1− The blueskin membrane creates a continuous moisture/water seal all throughout the building envelope. Metal flashing at the window drips water away and prevents it from entering the external wall structure below. −2− Icynene spray foam is filled into frames to achieve R20. 2” continuous rigid insulation covers the frames, and is then covered with OSB sheeting.

−3− In-floor radiant heating pipes are concealed within 2” gypsum flooring. The floor is finished with engineered hardwood.

−4− Ply sheeting provides slopes to the shading. A minimum 2” air cavity is needed for air circulation. This helps dry out any moisture in the roofing materials.

−5− Blueskin membrane insulates the substructure from below Typar air barrier to the soffit. The shading projection is finished with prefinished metal panels. −6− Icynene spray foam is filled only at the connecting compartments of TJI joist framing to provide continuous insulation. This unique material acts as an efficient thermal insulation and air barrier. The spray foam is low density, open celled, flexible and water-blown polyurethene foam.

EX2 3

F1 FW

Exterior Wall 2 // First Floor Assembly // Foundation Wall −1− In-floor radiant heating pipes are concealed within 2” polished concrete topping against 3/8” pourstop finished with typical base 1/4” clear pine. Paint finished gypsum drywall is flush to the pine base. −2− 1/2” concrete boards are inserted into the grade at a minimum depth of 12”. Prefinished metal flashing laps concrete board and conceals with siding above. Blueskin membrane ties air barrier to the metal flashing. −3− Painted Maibec wood siding finish the exterior side of this wall. −4− 6ml Poly vapour barrier below the interior finished gypsum board. Icynene spray foam fills the subframe, providing efficient and continuous insulation. −5− 4” drain pipe drains water away from the foundation.

North Facade Details Roof Type 2

−− 24 Gauge Prefinished Metal Standing Seam Roof on Metal Clips −− Continuous Ice and Water Shield −− 3/4” Ply Sheeting −− TJI Joist Framing −− Vented Roof Cavity filled w/ Icynene Spray Foam, R50 Type −− 6ml Poly Vapour Barrier −− T&G Clear Pine Finish

EX1

Exterior Wall Type 1

−− 24 Gauge Prefinished Metal Standing Seam Roof similar to R2 −− Continuous Ice and Water Shield −− 3/4” Ply Sheeting −− 1” Rigid External Insulation −− 2X6 Framing filled with Spray Foam R20 −− 6ml Poly Vapour Barrier −− T&G Clear Pine Finish

−− Double glazed, argon filled low-E glazing.

Window

Foundation Wall Assembly

2 3

−− 5/8” Hardwood Flooring −− 3/4” Plywood Subfloor −− 14” TJI Joist Framing filled w/ Icynene Spray Foam, R50 Type −− 1/2” Cement Board Soffit

−− 1/2” Concrete Board over 1X4 Pressure-Treated Strapping −− 4” Rigid Insulation −− 2-2x4 Pressure Treated Framing −− Spray Applied Bituminous Damp-proof −− 8”Concrete Wall −− 4” Perforated Drain Pipe w/ Soak-in Clearstone

First Floor Assembly

−− 2” Polished Concrete topping −− 4” Structural Floor Slab −− 1” Rigid Insulation

R2 1

Studio Floor Assembly

EX1

Roof Type 2 // Exterior Wall Type 1 1 − BORDEAUX RIB prefinished metal roofing is a high performance − and energy efficient system. Hidden fasteners and longitudanal ribs give the building an elegant look.

−− The roof is waterproofed with continuous ice and water sheeting, over 3/4” plywood sheeting. This membrane continues over to Exterior Wall Type 2, till the windows. 2 − TJI joists are used for roof and floor construction.14”thick Icynene − spray foam is filled into these joists to achieve R50. 3 − The glazing on the South Side window allows light and heat from − the low winter sun inside the house.

The solar chimney provides ventilation through the Stack Effect. Since this highly energy efficient home is tightly sealed, it is ventilated in a controlled manner. This promotes a more comfortable atmosphere, and reduces air moisture infiltration, while also reducing the likelihood of structural damage. The solar wall on the North Side of the house preheats fresh air intake during winters. This is connected to the mechanical ventilation system, bringing warm air in as it enters the system - reducing the heating load on the system. During summer months, a control valve disconnects the air intake from the solar wall. HIGH SUMMER SUN

Concrete walls at the north side of the residence These massive walls run continuously from ground floor to the top of the roof. Carefully planned openings at the second floor level bring natural light to the lower floor.

LOW WINTER SUN

The roof overhang allows for solar shading of south sun in the summer, and is optimized for solar gain in winter. Low winter sun heats the full height concrete walls through the solar chimney which acts as a thermal mass to keep the interior temperature from rapid fluctation.

The optimum value engineering method used for construction employs wood only where it is most effective, conrete retaining walls are constructed at the Northern side of the residence, proving to be a highly efficient form of thermal insulation.

Engineered TJI Joists provide high strength and consistency to make a high performance floor. These joists resist warping, twisting and shrinking that can lead to a squeaky floor. They are lightweight and come in long lengths which make them faster and easier to install than traditional framing.

The exposed concrete walls inside the house on the north side act as a thermal mass for heat storage and dissipation.