Specifications

Craughwell, Galway.

    This Timber Frame Passive House home built in Craughwell, Co Galway was designed by Miles Sampsom Architects www.milessampson.com and consists of the below

    • Ground floor: Raft foundation insulated with 250mm Kore Insulation and 215mm Quinn Lite blocks to perimeter. U-value: 119 W/(m²K)
    • Walls: Factory-built timber frame with 22m larch cedar & render externally, followed inside by 50 x 50mm treated battens and counter-batten, Ampack UV facade membrane 80mm woodfibre board, 235 x 38mm cellulose-filled timber stud, Ampack Membrane taped and sealed, 50mm service cavity insulated with Rockwool insulation, and 12mm MGO board internally. U-value: 126 W/(m²K)
    • Roof: Salvaged Blue Bangor slates externally on 50x35 battens/counter battens, followed underneath by breathable Ampack roofing underlay, 100mm wood fibre 235mm timber joists/rafters fully filled with cellulose insulation, Ampack airtight membrane, 50 mm uninsulated service cavity, 12mm MGO plasterboard ceiling. U-value: 094 W/(m²K)
    • Windows: M-Sora Natura E112 passive-certified triple glazed timber windows. Overall U-value: 0.77 W/2K

     

    • Roof window: Velux quadruple-glazed, passive house certified, solar powered rood windows. Overall U-value:0.70 W/m2K
    • Heating system: Nibe VVM 320 air-source heat pump with underfloor heating everywhere apart from sitting room. 200 litre hot water tank. DRU Global 60 gas fire with balanced flue to sitting room.
    • Ventilation: Passive House Institute certified Brink 400 MVHR
    • Electricity: 4kW solar PV to roof slates
    • Airtightness: 0.58 ACH at 50 Pa
    • Green materials: Timber frame, MGO dry lining board, salvaged slate, cellulose insulation, wood fibre insulation, salvaged stone, 50% GGBS cement, Sheep Wool carpets, cedar cladding,Passive certified pure timber windows frames (sedum roof yet to be fitted)