Hello everyone. I am hoping to get some professional opinions on an ice dam problem on a home we are considering purchasing. The home was built in 2003, is in WI, and is supposedly an energy star home. However, I can tell from looking at melting at the ridge vent on the peak that there is heat entering the attic from somewhere. This is causing snow melt and ice damming primarily in a valley where a copper roof on a “cupola” meets the main roofing pitch with standard 35 yr shingles. There is water running down the wall from the soffit, but I can’t tell if it is coming from the exterior of the soffit by wicking back up from the underside, or coming from the inside and out through the soffit.
There are no water stains anywhere on the ceilings in that part of the home or anywhere else, but there is a popped drywall screw in the general area of the picture. The screw isn’t rusty, but could be an indication of something going on inside.
This is a historic year for snow in this part of WI, so this is as bad it will get. I am hoping to determine if this is something we should open the wall and ceiling to see if there is water damage or if it is all exterior at this point and I should focus on reducing heat. We will definitely be including an inspection with the offer, but I am not sure how much an inspector could determine from a mostly visual inspection.
Thanks for any help you can provide!