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PART 1 - THERMAL ANALYSIS
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Glazing (Inner Plane 6mm)
Cavity (Air Gap 12mm) Reduces Conductivity
Glazing (Outer Plane 6mm)
TYVEK Waterproof Membrane
Bitumen Roofing Felt 6000mm x 700mm
Xtratherm - PIR
Insulation Board 50mm
Alluminium Interlocking Rainscreen Cladding
Internal gains for the meeting space are calculated to accomodate up to 10 people at onces, the building material aims to conserve internal energy gains however, more activity and internal gain may assist energy performance of the building (Motuzienė, 2017).
Graph does not reach CIBSE Reccomended Temperature Requirements, Possible active systems may be needed to be utilised in order to push building temperatures higher for indoor thermal comfort.
Maximum Operative Temperature at 10°C on 2nd January. The building envelope is not adapting to the climate therfore, solar gain is restricted and thermal properties of materiality is not being used to its full potential during the cooler period of the year (Designing Buildings, 2022).
South Facing large span openings for maximum Solar exposure to floor surface and utilisation of Thermal Mass. Potential cause of overheating during summer (Designing Buildings, 2022).
Maximum Dry-Bulb Temperature 12°C on 26th January. Passive heating will need to be maximised to its full potential, utilising solar gain and window placement for sun orientation.
7°C Average Operative Temperature - too low to comply with thermal comfort (CIBSE, 2005).
Summer Solstice
Large North Openings help to cool the building down through ventilation flow, however prevents energy conervation during Winter.
January recorded graph does not reach the reccomended CIBSE Guide A Reccomendations for indoor reccomended Thermal Comfort (Fig.X) (CIBSE, 2012).
Highest recorded Operative Temperature is 17°C on 02nd January. Required Indoor Thermal Comfort is not achieved and will require a strategy of Active systems powered by Naturally Sourced Energy.
Glazing (Outer Glass Plane 10mm)
Cavity (Kyrpton)
Glazing (Inner Glass Plane 6mm)
Cavity (Kyrpton)
Glazing (Outer Glass Plane 10mm)
Winter Solstice
Reinforced Concrete Roof Structure
Vapour Control Layer
PIR 50mm Insulation
TYVEK Waterproof Membrane
Bitumen Roofing Felt
Minimum Operative Temperature at 3.5°C on the 8th January. Building Performance does not comply with CIBSE Guide A Substantually (CIBSE, 2005).
Minimum Dry-Bulb Temperature is as low as -5°C. Building will require substantual natural heating and Thermal Properties to maintain comfort for users.
Reinforment Sleet Bars for Structural Concrete Proeprties
Bracket System with thermal break (RHEINZINK, 2012).
Rainscreen Zinc Cladding.
Maximum Dry-Bulb temperature reaches 28°C on the 15th July. Cooling required to keep the building comfortable.
Maximum Operative Temperature Complies with CIBSE reccomendations at 23.5°C on 15th July (CIBSE, 2005)
Average Operative Temperature
Lowest Operative Temperature at 17.5°C on 01st July, Improvement needed to comply with CIBSE, Passive Strategies will be able to push temperatures up from 9.5°C - 12°C to reccomended temperatures of 23°C25°C to comly with (Fig. X).
Lowest Dry-Bulb Temperatureat 9.5°C on 8th July, requireing maximum solar gain to allow the building to capure passive heating from the sun.
50mm PIR HF-B5 Insulation
Reinforment Sleet Bars for Structural Concrete Proeprties
Rainscreen Zinc Cladding.
Window Head Drip Strip for water prevention
20mm PIR Insulation
Thermal Break
Glazing System Frame HF-310 Frame 0.5 W/m2K) (Internorm, 2019)
Double Glazing Unit
- Outer Pane
- Air Cavity
- Inner Pane
Reccomended CIBSE Indoor comfort complies with the buildings indoor temperature for Conference / Board Rooms of between 23°C25°C (CIBSE, 2012).
Lowest Operative Temperature in the buidling is at 12°C. Slight use in acvtive systems will need to be utilised in order to achieve CIBSE Standard, passive energy will need to be utilised for solar gain potention such as Solar Cells and Wind power in order to provide enrgy for active systems to heat the spaces to reach thermal Comfort in the Winter (Designing Builidng, 2022) active systems will not be needed as cooling in the summer is needed in order to prevent overheating to the space.
Dry-Bulb Temperature highs of 12°C on 26th January. Building Performance meets outdoor temperature at this date.
Active systems will need to push indoor themperature up to reach indoor thermal comfort.
Minimum Dry-Bulb temperature of -5°C on the 5th January.
Building Performance maintains 15°C therfore slight active strategy will be required to achieve Building comfort of CIBSE reccomendations of 22°C 23°C.
Highest Outdoor Dry-Bulb Temperatures reach 26°C on 15th July. slight overheating of 25.5°Coccurs here, will need minimal assistance from any active systems to comply with CIBSE Standards (CIBSE, 2012).
North Facing Windows restricted to smaller widths and height to minimise heat loss during the Winter and control indoor temperature for thermal comfort.
Multiple smaller span openings towards the South to minimise head gain during the summer and heat loss during the Winter.
Lowest Indoor Temperature reaches 22.5°C on 1st July.
Lowest Dry-Bulb Temperatures reaching 9.5°C on the 8th July however, building comfort maintains a balance of 24°C utilising passive strategies.
Maximum Indoor Temperature with Highs of 26°C on the 30th July Minimun need for active systems as open windows can minimise this number.
Average Temperature ranging at 25°C withing acceptable CIBSE reccomendations (CIBSE, 2012).
Reinforced Concrete (300mm) Insulated PlasterBoard - 12.5mm Imnsulation - 5mm Plaster Reinforced Concrete (200mm) PIR Insulation HFB5 (200mm) Zince Cladding (RHEINZINK, 2012) PIR Insulation HF - B5 (200mm) PEAT Soil 100mm Water Filter Layer Gravel Edge for Water Drainage VCL Layer Air Gap (20mm 12mm Thermal Break Bracket Zince Cladding (RHEINZINK, 2012) Drip Strip over Window Head Reinforced Concrete (300mm) 12mm Thermal Break HF310 Aluminium Window Frame (Internorm, 2017). Triple Glazing With Krypton Gass Infil. Aluminium Sheeting for Shiplap attachment VCL Layer Figure 1: CIBSE Guide A Table Figure 2: Double Glazing Unit Diagram Figure 3: Existing Roof Build Up Table Figure 4: TYVEK Waterproof Membrane Figure 5: Bitumen Felt Figure 6: Insulation Board Figure 7: Alluminium Rainscreen Cladding Figure 8: Existing Glazing Table Figure 9: Existing Wall Build Up Figure 10: Existing Internal Gains Figure 11: Exisitng Massing South Facade Figure 12: Existing Mass North Facade Figure 13: Existing Board Room in Section Figure 14: Operative Temperature and Dry Bulb Graph January Figure 15: Operative Temperature and Dry Bulb Graph July Figure 16: Existng Wall Roof Detail 1:5 Figure 17: Existing Wall Window Detail 1:5 Figure 18: Improved Roof Build Up Table Figure 19: Improved Wall Build Up Table Figure 20: Improved Internal Gains Table Figure 21: Insulated PlasterBoard Figure 22: Waterproof Membrane Layer Figure 23: PEAT Soil Green Roof Build Up Figure 24: 200mm PIR Insulation Figure 25: Calcium Silicate Board Figure 26: Titanium Zinc Cladding Figure 27: Improved Glazing Build Up Table Figure 28: HF 310 Window Frame and Glazing Figure 29: Improved Massing North Facade Figure 30: Improved Massing South Facade Figure 31: Improved Massing South-East Figure 32: Improved Call Out Build up Detail (Wall Roof) 1:5 Figure 33: Improved Call Out Build up Detail (Wall Window) 1:5 Figure 34: Improved Dry Bulb Temperature and Operative TemperatureJanuary Figure 35: Improved Dry Bulb Temperature and Operative Temperature July