$0.00 Typical warm roof build up: Suitable for extensions, dorma's and commercial premises.  Typical cold roof build up: Suitable for Garage roofs and outhouses etc.  We specialise in Flat, Felt Roofing. Free survey and estimate. Dormers, Extensions and garages. Domestic and Commercial. We are committed to providing high quality service and workmanship. Insulation upgrade to conform to current regulation if required. 30 Years experience in Flat, Felt Roofing.