Mastic Around Roof Penetration
Submitted by GeorgeMaloley on Fri, 08/07/2009 - 21:11.
Roofing Mastic only last for 1.5 years before it starts drying out and cracking at any of the roof penetrations. Need to apply new mastic at all joints to prevent water penetrating down onto the roofing paper and/or attic.
Posted in Submitted by GeorgeMaloley on Fri, 08/07/2009 - 21:11.
