| Type of building: |
Private Residential, Client: Highland Housing Alliance |
| Description: |
A terrace of 3 family houses |
| Town: |
Milton of Leys, Inverness |
| Treated floor area: |
107m² ea (321m² total – 3 units) |
| Construction: |
|
| Construction method: |
Prefabricated Closed Panel Timber Frame System (RTC PassivWall) with prefabricated floor, wall and roof cassettes pre-insulated with 80% recycled content glasswool insulation |
| External walls: |
Locally Sourced Larch Timber Cladding from FSC sources |
| Floor slab: |
Ground Bearing Concrete Slab with 200mm rigid insulation below |
| Roof: |
Fibre Cement Profiled Sheet with Fakro Rooflights |
| Windows: |
Internorm Edition PassivHaus Aluminium Timber Composite Windows, U-value: 0. 71 |
| Doors: |
Internorm Edition PassivHaus Aluminium Timber Composite Doors |
| Ventilation: |
Balanced mechanical ventilation system utilising Passivhaus certified heat recovery unit with 88% efficiency (according to PH test methodology) (PAUL atmos 175 DC), distributed using 100-125mm diameter ducting within first floor and loft floor cassettes |
| Heating: |
Wet towel Rails in bathrooms and supply air duct heater batteries |
| DHW: |
Unvented hot water cylinder served by an air source heat pump system as the primary source of heating and a backup electric immersion heater |
| Other ecological aspects: |
Locally sourced materials, off-site prefabrication, enrichening of biodiversity through garden landscape design – enhancing wildlife habitats, composting and providing opportunities for food production |
| Key figures: |
|
| Air tightness: |
target: n50 <= 1m3 /h |
| Heating demand: |
14 kWh/(m²a) |
| Heat load: |
9 W/(m²) |
| Primary energy demand: |
109 kWh/(m²a) |
| Designers: |
|
| Year of finishing: |
August 2010 for the Housing Expo |
| Architect: |
HLM Architects – Ross Barrett |
| Passivhaus planner: |
HLM / SPHC |
| E/M Engineer: |
Buro Happold - Glasgow |
| PH Certification: |
Through SPHC |
