MCRMA - The Metal Cladding & Roofing Manufacturer Association
I.o.R - The Institute of Roofing
NFRC - The National federation of Roofing Contracrtors
ACR - The Advisory Committee for Roofwork
HSE - The Health & Safety Executive
Building Regulations - Download FREE Approved Documents from here
Energy Related
ACE - Association for the Conservation of Energy
DECC - Department of Energy and Climate Change