Pur Roof Over Wet Felt

The national roofing contractors association nrca includes roofing felt in its recommendations for roofing and waterproofing.

Pur roof over wet felt.

Does felt paper have to be used under asphalt shingles. This shortens the effective life of the shingles and can adversely affect the roof sheathing. An experienced roofer can dry in a roof so that it won t leak from a simple rain. I leave roofs under ice water shield 30 felt for 2 3 days at a time with no problems been doing this for 25 yrs.

This moisture can lead to mold and mildew forming underneath the shingles. High winds can push water or snow up the roof and under shingles or tiles. Roofing felt is used as a base over wood rafters and then shingles are laid upon it. Roof replacement is expensive.

A good thick organic felt paper like 30 can get some pretty hefty wrinkles if it gets rained on. Then it rained again. A steep roof is 4 12 or greater meaning that the roof rises four feet for every 12 feet of length. The felt got wet and let water seep through it to the osb.

Building codes also commonly require this material as a layer between the roof deck and 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. If you have competent experienced roofers working on your roof you have nothing to worry about let them do their job. Why is a synthetic felt paper or underlayment superior.

They can even telegraph through the shingles you lay over top making your roof look uneven. Roofing felt applied over a wet roof deck or shingles applied over wet roofing felt traps a layer of moisture within the roof. Because after letting the osb dry i laid the felt and installed half the shingles on the upper roof. Is it ok to install a new roof while its raining.

Roofing felt is most often used as an underlayment or layer between the roof deck and shingles tiles or metal panels on roofs with steep slopes. For starters it doesn t wrinkle up when it gets wet like organic felt does. I pulled a portion of one course of felt back and the osb was damp. Is it ok for a roof contractor to lay paper tar nd shingles on a damp roof.

Roofing felt is comprised of a base made from natural materials such as wood cellulose or synthetic ones such as fiberglass or polyester and then coated or saturated with a protective coating such as bitumen asphalt which repels water but still allows the product to breathe. Is it safe to put felt paper over wet wood when building a wall with stone facade. Here are some things you may be wondering about roofing felt.