Standard Specifications for our Timber Framed Housing

Each R.HOUSE timber-framed home (excluding the Bothy range) includes the following specifications:


  • Standard foundations, i.e., concrete strip, with a single layer of mesh reinforcement and three courses of blockwork
  • 55mm thick liquid screed encapsulating underfloor heating pipes for maximum efficiency, laid on 50mm rigid insulation on a solid reinforced concrete slab on a further 100mm of rigid insulation* (excludes final floor coverings such as oak, tile or laminate etc.)
  • Supply and erection of highly insulated timber frame with an exceptionally high level of air tightness, complete with floor and roof cassettes or trusses (dependent on house design). Frame lined internally with earth wool insulation and overlaid with rigid insulation, service cavity and 12.5mm thick plasterboard wall linings, taped and filled with mist coat only
  • 22mm Scottish sourced larch, board-on-board timber cladding to external walls
  • 22mm thick chipboard floor to the upper level (if appropriate)
  • Plywood stairs (except single-storey designs)


  • Tata Steel Plasticol-coated galvanised steel corrugated sheet roofing with a 40-year guarantee**
  • Lindab ‘Rainline’ aluzinc gutters and downpipes
  • Velux brand double-glazed roof windows
  • High-performance double-glazed timber aluminium clad windows and external doors (NorDan 1.2 NTech or similar) with factory-applied paint finish RAL 7021


External Walls || UValue 0.17

  • 140mm wool Frametherm 35
  • 30mm Kingspan (or similar) rigid lining
  • High specification membrane

Wall Vaulted Ceiling/Attic || UValue 0.17

  • 230mm Wool
  • Frametherm 35

Roof Cassette/Vault || UValue 0.12

  • 180mm Quintherm within timbers
  • 50mm Kingspan (or similar) rigid lining


  • Timber stud internal partitions, with 12.5mm plasterboard linings, taped and filled only with a mist coat of paint
  • Flush plywood, standard core, internal doors, ready for paint finish, with architectural ironmongery
  • MDF square facings and skirtings, primed for paint finish
  • Architectural ZOO chrome door handles and latches
  • Electrical system to comply with BS 816, 1363, 3861 and ICE 435. High-quality, contemporary fitting (Hager or similar)
  • Plain white Hager pendants in the living room, dining room and ground floor bedrooms
  • TV and CAT6 cable point
  • Mains-operated smoke and heat detectors
  • Dordogne oak internal doors


  • An allowance to select a high-quality kitchen made in Scotland by Ashley Ann, including a ceramic hob, single oven and integrated dishwasher
  • LED downlighters to the kitchen ceiling


  • Designer sanitary ware by Roca
  • Mains thermostatic power shower
  • Heated towel rail
  • LED downlighters
  • Choice of wet wall panels for shower enclosure walls around the bath and behind the sink to form a splash back


  • Electrical point
  • External water tap
  • Whirligig clothes dryer
  • One meter border around the house's perimeter using locally sourced stone chips
  • Concrete slab ramp from the vehicle drop-off point to the house's main entrance
  • Parking area topped with locally sourced stone chips
  • External passive infrared (PIR) security lighting
  • Aluminium clad windows

Green Credentials

  • Highly efficient Passive House Institute-approved Mechanical Ventilation with Heat Recovery System (MVHR), dependent on house design
  • Air Source Heat Pump System providing hot water and underfloor heating (excludes Bothy and Pod designs)
  • 4KW Solar photovoltaic (PV) panels (with the option to add a battery storage unit)
  • Single outlet 7.4KW electric car charger with universal charging socket

* Depends on location – screed may not be available in remote areas.

** Roof warranty reduced to 30 years in locations within 2km from the shoreline.