Homeowners often ask if a vapor barrier is necessary for optimizing attic insulation and protecting their homes from moisture-related damage. The answer, however, isn’t one-size-fits-all. Factors like ...

Q–I have a very serious problem with moisture and mildew on the inside of my attic roof in winter. I am afraid that it will cause serious structural problems. I had a roof fan installed to improve the ...

Imagine a cold, wet, windy day. You can take an umbrella to protect you from the water alone, but that won’t deal with the cold (temperature) or the wind (air convection). You can add in a light ...

Q–I want to add insulation to my unused attic. At present there are half-inch-thick waffled batts of a dark excelsiorlike material between the rafters and over the plaster and lath ceiling. An ...

Q:About four years ago we decided to add batts to our attic but now I am not sure what we did is doing us any good. In our attic we had the blown up white fluffy stuff which is about 25 years old. The ...

Q. I have received conflicting advice regarding vapor barriers for crawl spaces. Some advise leaving small spaces between the sheets to allow the ground to dry out under the barrier. Others advise ...

Q. My husband and I have huge condensation problems in our garage and new home. The garage was unfinished by the builder, but we added wall and ceiling insulation and vapor barriers on the walls and ...

Air barriers have been used in many different ways throughout the years, and they’re becoming particularly relevant as energy code requirements evolve. But many questions have surrounded the use of ...