Insulation contractors Jim and John Case show Bob how to insulate the cathedral ceiling. To ensure airflow and prevent condensation buildup, channels are install between each rafter. Dense ...

Q. My house has cathedral ceilings with 2-by-12-inch rafters to which the builder nailed 2-inch-high sleepers, bringing the effective depth for insulation to 13 5 / 8 inches. I had wanted to use 12 ...

Q. This week: My house was built in 1991 and the shingles on the roof are wearing out. It's time to replace them, and I wondered if this would be a good time to maybe do something about the ice dams ...

Many homes, both old and new, either have had attics converted to third-floor living spaces or have original top floors with cathedral-type ceilings. Typically, fiberglass insulation is installed ...