Roof
Posted: Wed Sep 04, 2024 3:09 pm
Ive just taken a row of tiles of my roof and noticed water staining on the membrane. The battons are all dry and there is no moisture inside the loft just on the outside of the membrane under the tiles. Its a breathable Tyvek membrane and the roof is only 6 years old. Is this condensation even on the outside and will fascia or roof tile vents help as there is no fascia vent.