Favorite Shingle?

Grumpy

Organic shingles do not contain fiberglass. Is this what you mean by organic shingles? Gaf Sovereigns are fiberglass/asphalt, they are not considered "organic".

There is nothing wrong with the sovereign shingles. I don't see how you would benefit from an outdated shingle (organics)... then again I am in Chicago not Canada.

"Paul"

I use Certainteed only now, I had alot of problems with Tamko, the sealer was on the out side of the dragon tooth on many shipments. Pinnacles are having a sealing problem and Owens Corning seems to be too thin (flimsy) and the granules come off way to easy especially in the fingers-Owens Corning is really bad for that. Wont use IKO or CRC's either they are a low quality shingle. But that's my opinoin!

Grumpy

I can't comment on canadian weather but here in Chicago the fiberglass reinforced shingles makes a really really big difference. The heat just eats up the organic shingles. There is nothing wrong with the royal sovereign shingle.