Garage condensation

26 Nov 2017
Reaction score
United Kingdom
I have a 6m x 6m single skinned block garage with a box profile steel roof slightly sloping from front to back. (Only a few degrees)
I get loads of condensation in the winter so was wondering best way to insulate the roof to prevent this. Joists are running across the garage from side to side and are approx 8" deep so plenty room to fit insulation in.
I would think that just putting insulation in between the joists would just hold the moisture as there is not an air brick in between every space in the joists?

The best guess i have got is to put a layer of insulation under the roof but not touching the metal, and then line with ply/osb etc. Would also have to fit air bricks at the end of every section.

Any help with my options would be great thanks
Sponsored Links

DIYnot Local

Staff member

If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

Select the supplier or trade you require, enter your location to begin your search.

Are you a trade or supplier? You can create your listing free at DIYnot Local