Rain On Tar Paper Roof

The top is protected from the sun by stone granules but there is no such protection on the underside.

Rain on tar paper roof.

Normal delays and the rain you indicated will not affect the structural properties of the panels. It s your roofer s responsibility to try to make it water tight. Roofing felt is made of compressed polyester or fiberglass fibers. When tar paper gets wet it buckles and ripples.

Any repairs would be his problem. Traditional roofing felt also called tar paper or underlayment is felt saturated with bitumen also called asphalt. Over a long and i mean long period of time the sun heat will dry out the. By carlye jones 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 shingles.

It is typical for the roof to be in this condition for 30 60 days while other phases of the construction are completed. Our osb is rated exposure 1 and that means that it will withstand normal delays in construction. Felt is compressed fibers of wool. I wouldn t trust it in the rain but it s not my job.

It sounds like the tarpaper covering this is the old tar paper correct. Osb like all other wood will expand.