Since 1992, Greenfield Way has been working to provide social housing with high levels of insulation, so much so that its designs already comply with the predicted requirements of the next round of Approved Document L revisions in 2004-08.
Using a structurally insulated panel (SIP) system, the walls are insulated with 170mm mineral fibre in factory conditions in Sweden and shipped over to the UK in flat packs. The panels include factorybuilt triple-glazed windows and complete doorset assemblies with 'airtight'seals already built into the panels.
All houses include mechanical ventilation and heat recovery, a point-of-use electric panel heater system with individual thermostatic controls and have a mains pressure hot water cylinder that feeds aerated shower heads, basins and taps.
Each house also comes with a fully tiled shower pod and double flush WC as standard.
The U values of a 70.63m 2Greenfield Way house are as follows: walls,0.18W/m 2K; roof,0.18W/m 2K; floor,0.20W/m 2K; windows,1.65W/m 2K; air infiltration rate:3.21 ACH Noting that blown recycled newspaper insulation is best suited to site applications, Derek Green, chairman of Greenfield Way Design and Builders, says that it is 'much keener to explore a Scandinavian product - aerated timber cellulose', for factory fitting.
New developments include factory-fitting roof insulation at the same time as the roof covering and building suspended floors as standard, with insulation fitted into floor cassettes. These, too, will be built off site and transported as complete units to the building site.
For more details call 01283 840695