We had a new roof installed & insulation added to attic (two separate contractors) attic 6 years ago. Our roof had to be replaced this year and roofers told us it was due to incorrect installation of insulation. We hired a home inspector and he also determined it was due to incorrect installation - basically the insulation contractor completely blocked the soffits with insulation and the attic had not airflow. We had the insulation contractor come back to take a look and he was adamant nothing was wrong. He told us we ruined the R value of the insulation when we were up there and had the gall to send us an estimate to fix it and add more insulation. I understand the statute of limitations for home repair is 4 years (?) but would the fact that we couldn't have known about this other than the affect to the roof which wasn't evident until year 6 have any bearing?