How Long Leave Tarpaper On Roof Before Bad

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.

How long leave tarpaper on roof before bad.

30 felt paper will last for several months like the man said in the first answer fasten it down real well. First paper was impregnated with coal tar. I am building a packaged house right now and have ran into delays due to the horrible weather here in central alberta. It improves look and uniformity because your roof deck might not lie perfectly straight or flat a layer of roof paper gives an even uniform surface upon which you can install your shingles.

Later asphalt was used in the manufacture of roofing felt. Your roofing wouldn t have got done in a timely manner. Today glass fiber or polyester fabric may be used instead of paper. I have really worked hard to keep the 5 8 sheathing dry even thought it has rained every day this month here.

The 30 pound tar paper is heavier and has much more asphalt in it. I recommend using alot of staples and by alot i mean for example in a area of about 3 x. As previously mentioned roofers know where the rotten wood is even before the shingles are touched. Roofing felt prevents the deck from being exposed to the elements before or while the shingles are being applied.

It will break down in sunlight and with large amounts of ongoing. I did a tear off on my roof and put 15 felt down with about a foot and a half overlap for good measure 5 days ago was going to start laying shingles down but wasn t in a real hurry to finish up problem is that now the felt paper is getting all bumpy and we expect showers the next 2 days i m putting down 30 year timberline so i m hoping this isn t a problem. Roofing felt can get wet and still maintain its integrity as long as it is not exposed to the elements for more than a few days. How many layers of tar paper are recommended for a layers of tar paper required under a metal roof 11 9 2004 within the underlayment discussion of the residential metal roofing forum.

Before oct2007 we never tore off the exisiting felt unless it was crumbling apart or there was rotten wood to be replaced. The tar paper made between 1900 and 1980 probably will last far longer than the tar paper made today.