30# felt underlayment: "How long can the underlayment be exposed to the weather, ..." - Guest User (9/13/2007) | Underlayment | Archive

This topic has been closed by the administrator. Comments are no longer accepted.

How long can the underlayment be exposed to the weather, sun, wind, etc. before it needs to be replaced typically? Is there a warranty period?	Guest User 9/13/2007	Share Or copy this URL: https://www.metalroofing.com/spirit/comment/10232/find/
Always inspect it closely for cracks and tears. How long it lasts depends a lot upon how bad the weather has been. Expecting it to last 90 days would not be unreasonable. The new synthetic underlayments seem to last longer.	Todd Miller Isaiah Industries, Inc. 9/16/2007	Share Or copy this URL: https://www.metalroofing.com/spirit/comment/10233/find/
There is no specific warranty period on asphalt impregnated saturated felt underlayment. In most cases the manufacturer recommends the felt and shingles(or other suitable roofing material) be applied simultaneously. Felt underlayment should not be exposed to the weather, however it is common practice. As long as the product isn't torn or damaged, it doesn't have to be replaced prior to application of the final roof covering.	Guest User 1/24/2008	Share Or copy this URL: https://www.metalroofing.com/spirit/comment/10234/find/
Thanks Jack.	Todd Miller Isaiah Industries, Inc. 1/24/2008	Share Or copy this URL: https://www.metalroofing.com/spirit/comment/10235/find/