When can anti-condensation fleece help under metal roofing, and when does the roof build-up need attention?
Felt under steel sheet can reduce dripping condensate, but it must have conditions to dry out. It will not repair a leak or replace any roof layer. Before choosing, it is worth establishing where the water comes from. Condensation on cold steel sheet requires a different response from a leaking joint letting rain in. Felt is a fibrous layer bonded to the underside of the steel sheet. It retains some of the water condensing on the cool surface. This reduces the formation of droplets falling into the interior. However, its capacity is finite and depends on the specific product.









