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MAXUM · 12-15-2018, 08:26 PM

Depends on the pitch, have to be careful even with conventional shingles. If you have a low pitch it's imperative to have a very good underlayment such as Grace Water Shield.

12-15-2018, 08:26 PM	#2
MAXUM Senior Member Join Date: Apr 2004 Location: Kuna ID Posts: 2,755 Thanks: 246 Thanked 1,942 Times in 802 Posts	Depends on the pitch, have to be careful even with conventional shingles. If you have a low pitch it's imperative to have a very good underlayment such as Grace Water Shield.