I just recently received a phone call from a customer whose HVAC guy discoved a freon line punctured by a roofing nail from an installation we did a few months ago. The HVAC guy found the punctured line in a 2nd story closet ceiling after he cut several areas of sheetrock out of the ceiling and wall. The customer is expecting me to pay for the damages which are over $900 for finding the leak, repairing it and refilling it with freon.
My question is, who is at fault? We installed the shingles properly with a 3/4" nail penetration. The freon line was installed right against the roof decking and covered by sheetrock and insulation.
Has this ever happened to anyone else? Does anyone have a disclosure or waiver the customer has to sign if this sort of thing ever happens.