Q. This week: I had my roof sheathing replaced a year ago; it was plywood and had delaminated. The contractor thought it might have been due to excess moisture in the attic. This winter, I went up ...

Can new plywood be installed on a 40-year-old roof without removing the old? Roy Gingrich of Ellicott City has a 40-year-old house with an asphalt shingle roof surface. The existing asphalt shingles ...

Add Yahoo as a preferred source to see more of our stories on Google. Homeowners often begin to notice signs of a buckling roof when visible deformities appear. Initial signs of damage might be waves ...

Dear Jerry: I have inspected hundreds of roofs, but this one has me puzzled. The house is a two story, about 20 years old. On the east side of the house only, the plywood for the first three trusses ...

Frost accumulates in attics when moisture-laden air from the house gets up there when it's cold. That's about it, pretty simple. When the moisture gets into the attic, it condenses on the roof ...

When you’re trying to track down a leak, start by looking at the roof uphill from the stains. The first thing to look for is any roof penetrations. Items that penetrate the roof are by far the most ...

. Q. I hate to still keep you on the "cold roof" subject, but I want to make a cold roof on my 6,000 square foot Victorian 4-unit with 2 furnaces that are located in the attic. What can I do? K.C.

Louvers are covered openings that allow air to escape the attic. They are located on the gable (non load-bearing) ends of the house and allow limited airflow. This system relies on wind direction to ...

Q. I'm trying to educate myself about new construction, as I'm thinking of building a new home. I see carpenters nail on large sheets of wood onto the wall studs. What's the purpose of this funny ...