We have a large ice dam on a 6 month old roof with not much pitch. The old gutters are packed full. The soffits have ice coming out of them and here's the best part - so does the siding. Under windows, in corners, there are large areas of ice. The siding is metal, we have no idea what could be under it. The house was built in 1950. What could be under the siding? What damage could be there now or will be there when this melts? I forgot to tell you that we are just in negotiation for purchase of this cute little cottage. How big is this problem?