I've used Arizona Foam and Spray for nearly 10 years and continue to call them for my roofing needs. I've used them on anything from warrantee repairs on my 200,000 sq. ft. roof, residential flat roof coatings, and even on a membrane roof that needed a patch chemically welded in place. Whenever I make a new roof penetration with new curbs, I never worry about creating a leak point. I get the service I need to build up around the curb so rainwater flows well away from the potential leak point. (In the past, I've had companies put in a bare minimum of foam that didn't create a cricket around the opening and subsequently had to deal with leaks. Gary has really bent over backwards to accommodate my requests and his field techs are always very well trained and do excellent work. I highly recommend this local business for your roofing repair and foam needs.