Roof Size

New Builds 0.11W/m2K (England & Wales) & 0.10W/m2K (Scotland)
Extentions 0.18W/m2K (England), 0.15W/m2K (Wales) & 0.13W/m2K (Scotland)
Refurbishments 0.18W/m2K (All Regions)
Non-domestic is different. Please always check regulations, these are on as a guide or your plans before ordering. 

* Required Fields