John,
If it is a small repair, you may want to test out a product at Lowes. Homax ceiling texture. I'd suggest trying it on a scrap piece of drywall (make sure it's at ceiling height for testing). ... read more
In regards to roofing, Owens Corning has a great checklist and you can find it at the link below! Here are just a few items to check though:
-Accredidation and good standing with the BBB
-Additional ... read more