Well insulated timber frame buildings can give around a 30% reduction in CO2 emissions: this is a great help in achieving CfSH level 3. By further increasing thermal efficiency along with, perhaps, the addition of some renewables e.g. solar thermal and/or air source heat pumps, CfSH level 4 can be obtained. To reach level 5 and the ultimate level 6 (zero carbon) even higher levels of thermal efficiency through the fabric is required, and in addition, the use of renewables (Photovoltaics, Bio-Mass boilers, Wind Turbines etc) to provide electricity is mandatory.
Typically we would use a 140mm stud with various configurations of insulation. The finished frame thickness (inside face of plasterboard to face of cavity) is between 162mm to 235mm
Pre-insulated panels have rigid or mineral wool insulation fitted in our factory, saving time on site in materials handling and installation, and reducing waste produced from on site process. Closed Panels go a stage further, and typically include factory fitting of the vapour barrier, service battens and can include windows and doors.
Wherever possible we build all roofs on the slab prior to frame erection (usually one week before). When the panels arrive we crane the roof off the slab and place to one side, erect the wall/floor panels, and crane the roof back on – all in one day. This has proven to be a safe method of build as the roof is not constructed at height.
Depending on design we can erect the structural frame without a conventional scaffold system. This can reduce scaffold hire costs by around 10%, remove scaffold erection from the critical path, and improve the quality of scaffold install as the timber frame is in situ.

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