Roofing/Siding
I have a split level ranch with sagging 2x6 rafters on a 4.5/12 pitch. I am having the 1/2 inch osb sheething replaced and putting on 30 year acht. shingles. The house was built in 1983 and the walls show no signs of spreading, there are 2x6 ceiling joist working as rafter ties. the sagging...