Is It Ok If Roof Felt Gets Wet

I ve tried covering the roof to protect from rain with plastic or.

Is it ok if roof felt gets wet. This moisture can lead to mold and mildew forming underneath the shingles. The bubbled felt can cause a minor lump on the finished roof depending on what sort of roofing you re using. Any moisture trapped in the roof will flow down and out. Roofing felt that has gotten wet can be covered with shingles as long as it is allowed to dry out first the surface underneath did not get wet and it did not wrinkle bubble or rip.

Doesn t matter at all. When the felt gets wet it will crinkle up and not lay flat which may not be noticed if you have a thick comp shingle 30 year. Having wet sheathing covered with tarpaper or membrane will trap the water in the sheathing very bad practice and contrary to industry standardss for roofing. But not for long periods of time.

However when the rainy season is here we make sure to work quickly efficiently and safely. The decking sheathing should have been tarped and work stopped as soon as it was evident enough rain was going to fall to wet the wood or water barrier felt. Roofing felt should ideally be dry when shingles are installed to avoid ripping but it s still possible to install when wet. Felt will often get wet with a cedar shake roof since this type of roof is designed to soak up then shed water.

Roofing felt is not designed as a permanent exterior barrier against water. Osb like all other wood will expand when exposed to moisture and i assume the contractor spaced the panels the required 1 8 along the 4 edges and installed h clips along the 8. So yes roofing underlayment can get wet. Roof replacement is expensive.

That s why planning is so important during a roof installation. The felt collects and then repels the water allowing the roof to breathe. Roofing felt applied over a wet roof deck or shingles applied over wet roofing felt traps a layer of moisture within the roof. The felt can be damaged if exposed to moisture too long.

It is safe to walk on. During clear 70 degree days we have more flexibility in our schedule.