Similar experience to others reported with American Foam
got a 15 yr warranty 6 yrs ago. now, roof leaks and grandson has changed name of company and will not honor warranty.
they operate with same phone number and from same address from grandparents business, Sierra Spray Foam, but disclaim any connection or obligations. this scam has been pointed out by every review i'm able to find on either company.
they initially pretended that there was no connection whatsoever between the 2 companies, despite the familial relationship, same number and address. the person who answered the phones seemed very frustrated to be put in the position of receiving many of these types of warranty calls and to have to help perpetrate this scam.