Texas residential roofing. From what I can tell … GAF is the single worst, they are not as good quality if you ask me. GAF ELK bought and merged the two now known as GAF Elk. As I said in my opinion is not very good. And the warranty, so they have is the name of a vessel of you know what. It looks good on paper, but file a claim and you will be ready for the greatest running. I would not recommend this product to anyone. Before the merger of GAF Elk withe. Elk did an excellent product, not so much since it was acquired by GAF.