Building codes also commonly require this material as a layer between the roof deck and shingles.
Pur roof over wet felt.
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.
Have had a flat roofer turn up to do a repair and refelt a roof the long and short is even though he has quoted to replace some boards if needed i know a couple were soaking wet as can see from inside my flat where ceiling fell in he never even tried just nailed new boards on top and refelted those then on the concrete sides he has not removed old felt just gone straight over the top so.
Is it safe to put felt paper over wet wood when building a wall with stone facade.
Roof replacement is expensive.
Is it ok to install a new roof while its raining.
Then it rained again.
Why is a synthetic felt paper or underlayment superior.
An experienced roofer can dry in a roof so that it won t leak from a simple rain.
High winds can push water or snow up the roof and under shingles or tiles.
Perhaps it just felt damp from the previous rain before laying the felt.
Does felt paper have to be used under asphalt shingles.
A steep roof is 4 12 or greater meaning that the roof rises four feet for every 12 feet of length.
They can even telegraph through the shingles you lay over top making your roof look uneven.
A good thick organic felt paper like 30 can get some pretty hefty wrinkles if it gets rained on.
I pulled a portion of one course of felt back and the osb was damp.
Here are some things you may be wondering about roofing felt.
The felt got wet and let water seep through it to the osb.
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.
This shortens the effective life of the shingles and can adversely affect the roof sheathing.
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.
Roofing felt applied over a wet roof deck or shingles applied over wet roofing felt traps a layer of moisture within the roof.
Is it ok for a roof contractor to lay paper tar nd shingles on a damp roof.
It was drizzling and osb was exposed for about a half hour.
Because after letting the osb dry i laid the felt and installed half the shingles on the upper roof.
The national roofing contractors association nrca includes roofing felt in its recommendations for roofing and waterproofing.
Roofing felt is used as a base over wood rafters and then shingles are laid upon it.
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.
