After the right choice of materials the single most important choice you can make is to use an experienced, time proven contractor who can consistently tailor that material to your property, following
British Standards.
Design Factors
Falls and Drainage
Thermal Design
Vapour Control Design Guide
Trapped Moisture
Movement and Membranes
Wind
Wind Attachment Design Guide
Fire
Roof Renewal
Structural Decks
Screeds
Insulation Boards
Materials
Application Techniques
Surface Protection
Typical Specifications
Built-
up Roofing Detail Design
Typical Details
Maintenance
Repair
U-
Value Calculation Method and Condensation Analysis