It's a hint that they do not consider the materials very survivable. Five years is an awfully low lifetime for a permanent living structure, particularly one a

It's a hint that they do not consider the materials very survivable. Five years is an awfully low lifetime for a permanent living structure, particularly one a contractor had a hand in building. Better to just not offer the warranty than offer five years, in this case, since one wouldn't expect to have to rebuild their home's frame three times before their kids graduate high school. I get that the intent of this product is different, but not different enough to make the warranty not stand out.