Stay away from Amcor. No Service, No warranty, didn't put a pad/paper on, just shingles and ran. Slap it together and run. Avoided my calls for warranty. Never heard from him again. Was quick to take a deposit and then come back when the roof was 1/2 done to ask for more money!!!! Held me hostage with a roof 1/2 finished. This is allowed in Alberta? DO NOT USE AMCOR !!!