Some people may remember, I’m mainly a pusher of Certainteed Archs. Used to use GAF’s but switched to Certainteed because I liked the seal strips and they seem to lay flatter out of the packaging. Ended up selling myself into some Timberline Ultra’s and it gave me more reasons that I hate GAF arch’s. Whats up with their 1/4 inch nailing strips? This was aggravating. Certainteed I would guess has about an inch of overlap where the two pieces are stuck together. I must have had to pull a hundred shingles by the time a job was finished by having to be so exact with the nailing pattern… low nails if your hose gets jammed up anywhere the least bit, or you have to stretch for that one last tough to reach shingle. This is certainly not an installer friendly shingle, IMO. Boo for GAF archs, I say.
On the flip side, my partner loves these peel and stick roofs and I have not been so impressed. However, on peel and stick roofs, Liberty Cap Sheet (GAF) gives me more confidence than the Flintlastic (Certainteed). Liberty as opposed to Flintlastic seems to be more pliable. It seems to stick better. The overall appearance when finished looks more professional, as I noticed less granular loss. I felt like I was installing a professional roof with the Liberty as I was going, whereas installing the Flintlastic made me feel like it was at least a step up from asphalt rolled roofing. Considering theyre competitive products with similar costs, I dont think I’ll be selling Flintlastic anymore.