What are the pros and cons of Owens Corning shingles vs. GAF …
One difference besides the warranty is that Owens Corning has a constant bead of sealant on the backside of the shingles to seal them to the shingles underneath; if you're in an area that gets significant amounts of wind-driven rain (such as a coastal area) to the point that you will be testing the wind resistance of the shignle, you will ...
roof - How to make GAF Ridge Cap Shingles? - Home …
2017年9月12日 · Plus this has adhesive strip on the top (not center). I don't know if it matters (see highlight below as adhesive strip): UPDATE 2 (WRONG) Illustration to use the top part only (the one with one layer). Cut to 1/3 and use the "x" pieces for ridge caps. roof. shed. shingles. Share.
How far should shingles hang over the drip edge of the roof?
2022年4月19日 · GAF Shingle Advisory. In it they say: Shingles should not extend more than 3/4” (19 mm) past the drip edge. If shingles overhang the edge of the roof by more than 3/4” (19 mm), then they are not supported and may crack and break off. In addition, the wind resistance at the roof edge may be compromised. Here is another manufacturer's ...
How can I determine proper step flashing size and thickness?
2023年11月20日 · I plan to use GAF Timberline HDZ shingles (fiberglass asphalt) when my house is reroofed. What would be the best dimensions for the step flashing? Would a 5"x5"x8" size for step flashings be good? The shingle dimensions are 13-1/4" x 39-3/8" and exposure is 5-5/8".
Should I apply Underlayment over Grace Ice and Water Shield
2020年10月8日 · I was considering applying the synthetic underlayment over the Ice and Water as well, as I have read that shingles will often adhere so badly to I&W products that you have to take the decking out to re-roof 20-30 years down the line. Grace I&W says right on the box that shingles won't adhere to it, and makes re-roofing easy. Is this true?
roofing - What advantages do ridge cap shingles have over …
Standard shingles are a bit thinner than ridge cap shingles, and can crack or tear when folded over the ridge. Ridge cap shingles are thicker and come pre-bent, so there is less chance of cracking. Better adhesion. Most ridge cap shingles have an extra dollop of adhesive near the end of the shingle, to help hold it to the shingle below.
How do I finish a ridge cap? - Home Improvement Stack Exchange
I've installed the ridge cap, using modified 3 tab shingles. I've installed the ridge cap all the way to the other end of the ridge, but I'm not quite sure what to do now. The next shingle will be hanging out over nothingness, how can I nail it down? Please don't nitpick about not using Ridge Cap Shingles, that's a different question altogether.
What are the pros/cons of Ondura for roofing?
2011年7月21日 · The coating wears out quickly. The roof needs sealing every 5 to 7 years, especially here in rainland, and. It cannot have another roof laid over it. You MUST remove it, no matter what roofing you decide to use. Another Thing: there's no ridge cap, they recommend roll roofing, which can easily come off in the wind.
roof - Can I make the contractor redo a roofing job because he …
The roof has what I assume to be its original 3/8" plywood sheathing and two layers of shingles (sounds about right: if you figure each roof lasted twenty years or so, the math works). Regardless, we purchased new GAF Timberline shingles and he went to work. The whole job took him (and his crew of two others) two days to complete.
roofing - Should plywood be missing on my roof? - Home …
2019年11月3日 · It is recommended that if metal is used for decking repairs that metal screws of a nominal Number 8 size be used in lieu of roofing nails. Nails shall have sufficient length to penetrate a nominal 12mm (a ½”) into the sheathing / decking. If the roof deck is 15/32 CDX Plywood then at least the tips of the nails should be visible from the ...