Wet Tar Paper Roofing

Traditional roofing felt also called tar paper or underlayment is felt saturated with bitumen also called asphalt.

Wet tar paper roofing.

The only problem is that the house has trees on the east side so its like 9 o clock until i can shingle and even longer until the west facing side gets sun and dries. Black jack eterna kote 4 75 gallon silicone reflective roof coating lifetime warranty item 484330. For pricing and availability. How to install roofing tar paper.

The paper has dew in the morning so ive been wiping it down with towels or old shirts and then waiting until it dries completely. This moisture can lead to mold and mildew forming underneath the shingles. Roofing felt is made of compressed polyester or fiberglass fibers. Roofing felt applied over a wet roof deck or shingles applied over wet roofing felt traps a layer of moisture within the roof.

When shingles are placed on top of rippled tar paper voids are created which act as little greenhouses that collect heat and break down the shingle from the underside. This shortens the effective life of the shingles and can adversely affect the roof sheathing. Can roofing felt get wet. How bad is it to shingle over wet tar paper.

Roofing felt also known as tar paper serves as both an extra layer of protection between the shingles and the plywood and as a temporary moisture barrier until all the. Roofing felt or tar paper can be left out in the weather for weeks shedding rain water while the roof is in progress of being completed. When tar paper gets wet it buckles and ripples. Felt is compressed fibers of wool.

Black jack elasto kool 1000 5 gallon elastomeric reflective roof coating 10 year limited warranty item 139941. Unfortunately the organic elements of tar paper require a perfectly dry day to lay flat. It would possibly mold if the tar paper was put over wet plywood but here again i would be more worried about the leakage between the plywood into the attic than between the tar paper and shingles. While impossible to know unless you do an expensive analysis the asphalt used to make modern tar paper contains much more oxygen than it should.

Bitumen or asphalt is distilled from petroleum and is what makes roofing felt waterproof. The best roofing conditions are of course nice sunny days about 78 85 degrees but this is not reasonable all year in the vast climates we have in america or with some of our readers all over the world. Roof replacement is expensive.