Work a flat roofer can help with
EPDM roofs
Describe what is there now, what you want changed and any photos, so quotes cover the same scope.
GRP roofs
Mention the size, access and any deadlines so tradespeople can price the job accurately.
Torch-on felt
Say what finish or standard you expect and whether materials are included.
Flat-roof repairs
Add anything that could affect the work, such as parking, pets or working hours.