Roofing

New roof but internal boards still wet.

Anonymous user 28/02/2024 - 3.36 PM

I have had a leak on a flat roof extension in the bathroom. It was coming through the vent and pooling around the light in the centre. I had the whole roof renewed as was it was old and overdue. I have now taken down the ceiling inside the bathroom as it was water stained but found the boards, insulation and timbers to still be wet in the place where the leak was before. There was not a new ventilation vent put in so I am told by the roofer I need to put that back in now as its condensation causing the boards to be/remain wet. I find it odd that it is just in the one spot though and not over the whole roof? Is this normal for a condensation problem? could it just be remaining water in the roof as the boards and insulation was changed but the joists were not as they were damp but in good condition. Its had two weeks to dry out. I used an approved roofer with a guarantee on the roof and since there is no vent anymore I am struggling to see how it can be a leak in the centre of the roof. If not condensation any possible ideas of where this leak could be? Sorry for the lengthy explanation, I am not a roofer either so apologies if this is not the correct technical language. Any help or insight always appreciated. Thanks