I live in the Portland, Oregon area. My home was built in 1993 and has a concrete tile roof. I have many soffitt vents but no venting through the tile roof itself. I have excellent insulation in the attic and a whole house fan mounted in the upstairs hallway. I run the fan minimally in the winter and from 2:00pm to 11:00pm in the summer. My house was repainted about 5 years ago and starting about 2 years ago the soffitt areas began turning a dark color while the rest of the painted sections looked fine. I presume the soffitt color is from excess moisture in the attic. Any suggestions? Thanks.

Going to finish the basement soon, and can't decide which way to do the walls. There are pros and cons for using furring strips and a product like DOWs STYROFOAM for insulation, or a 2x4 framed wall with standard fiberglass insulation. If I use the furring strips I won't lose much in the way of floor space, the vapor barrier is built in and the installation is easier. Has anyone used this method? I live in the Chicago Area, and the house is less than a year old. The basement has solid concrete walls. Any opinions or experiences would be great. David