What to do
- Ask why a proposed material suits the substrate and roof use.
- Compare edge, outlet and upstand details as carefully as the main covering.
- Confirm maintenance advice and warranty conditions in writing.
Put it into your brief
Describe the roof use, approximate area, visible condition and drainage points. Ask each specialist to explain the proposed covering alongside insulation, substrate, edges and outlets.
Make the comparison useful
Compare complete systems and installation details, rather than the covering name alone. Record what will be removed, retained and inspected, and how unexpected deck damage would be handled.
Create a roof project brief