A flat GRP fibreglass roofed extension was added to my bungalow about a year ago.
Occasionally loud bangs occur, usually morning and evening - presumably due to expansion and contraction and I am worried that this might cause damage.
Should I be concerned?
John Conlin: Can we replace our conservatory roof
From your description I assume the GRP is of the corrugated pattern.
I think that you are right about the noises being caused by thermal movement. It may be that the builder, with the best of intentions, has secured the roof panels to the frame too tightly, using special fixings comprising a neoprene washer that sits on the crest of a corrugation through which the fixing screw or bolt passes.
Crucially the screw or bolt then passes through a spacer sleeve beneath the panel. You may find that loosening the screws very slightly reduces the noise.
The new look Saga Magazine is available now for just £12 for 12 issues...
John Conlin answers: Can you prevent crumbling roof tiles?
One loan rate, endless possibilities. Are you 50–75 years old, a homeowner in England, Scotland or Wales with an income of £12,000 or more? Find out more about Saga Personal Loans, provided by Shawbrook Bank Limited.
The opinions expressed are those of the author and are not held by Saga unless specifically stated.
The material is for general information only and does not constitute investment, tax, legal, medical or other form of advice. You should not rely on this information to make (or refrain from making) any decisions. Always obtain independent, professional advice for your own particular situation.