Condensation

[elmwood]

Hello. We live in a 1960's bungalow. A couple of years ago the underfelt started to deteriorate quite badly and leaks appeared. Moneys tight but a 'friend' recommended a roofer who said he could reuse the existing tiles and just replace the underfelt. The finished job was not good but for various reasons I'd already paid (I know - kick myself daily). Anyway at certain times of the year there is a large buildup of condensation on the inside of the felt. This is running down and causing problems inside the house. What steps can I take to eliminate the condensation build-up? apart from getting another roofer
Cheers John

 

[JohnD]

1) Ventilate the loft space.

2) Ventilate the loft space.

3) Ventilate the loft space.

4) Ventilate the loft space.

5) Check that your water tanks all have lids on them and the central heating feed and expansion (if there is one) is not full of hot water.

6) Make sure you don't have wet air from yout bathroom or kitchen or tumble drier getting into the loft.

 

[Static]

Check the edges of the loft space for insulation stuffed down the cavity.. normally a loft is ventilated via the eaves so check that air flow can be achieved.

 

[elmwood]

Thanks for that. I think you're hinting at ventilation

That does make sense looking at the insulation around the edge it looks fairly air tight. Also a combi boiler went in when we moved in and there is a path for hot air to flow into the loft through the old airing cupboard. I'll set-to asap hopefully come the more humid season condensation will be cured.

Cheers

John