Is It Ok For Roofing Felt To Get Wet

Roofing felt or paper.

Is it ok for roofing felt to get wet.

Serves as a moisture barrier of sorts and it provides a. 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. Roofing felt is not designed as a permanent exterior barrier against water.

That s why planning is so important during a roof installation. My concerns with wet or damp felt is that it causes the felt to wrinkle. It is safe to walk on. Keep the roof dry more or less until the shingles go on.

These wrinkles can hold up the shingles from laying flat till the moisture evaporates. Doesn t matter at all. Most is made of paper by the way helps. Roof felt gives your roof a better appearance and will help it last longer.

However when the rainy season is here we make sure to work quickly efficiently and safely. So yes roofing underlayment can get wet. If the sheathing or wood is wet during the time of installation it can trap moisture inside of your roof leading to mold rot or other severe problems. This can be unsightly and disturbing to the home owner.

During clear 70 degree days we have more flexibility in our schedule. Felt will often get wet with a cedar shake roof since this type of roof is designed to soak up then shed water. Roof replacement is expensive. The bubbled felt can cause a minor lump on the finished roof depending on what sort of roofing you re using.

A wet installation can also cause a new roof to fail. 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. This shortens the effective life of the shingles and can adversely affect the roof sheathing. But not for long periods of time.

Roofing felt should ideally be dry when shingles are installed to avoid ripping but it s still possible to install when wet. 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. Any moisture trapped in the roof will flow down and out. This moisture can lead to mold and mildew forming underneath the shingles.

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. Waterproof roofing felt gives the roof temporary protection from rain while you apply shingles tiles or other roof coverings.