How many top coats do you need on a fibreglass roof

About to tackle a small GRP roof and not sure if one top coat is enough or if I should be doing two. What’s the usual?

Asked by Elly on 17th Sep 2025
Expert Trade Answers
"Two top coats is better to be on safe side no problems after that"
Answered on 26th Sep 2025 - Member since May 2025 - report
"You only need one top coat on a fibreglass roof, but we generally give it 2 coats just to be on the safe side."
Answered on 20th Sep 2025 - Member since Sep 2025 - report
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