The exclusive new approvals from DrJ Engineering address several key aspects pertaining to unvented attic applications to allow builders to cost-effectively construct the safest family homes with high ...

Q. I'm planning a room addition to our home and would like to make the ceiling a sloping, cathedral one. In the past few months I've been hearing about people building roofs like this without any ...

Q. I read a recent article you wrote about homes with sealed attics. Our house has one, and we think it’s great. We’ve had no problems with it. I have heard conflicting reports regardin… ...

Q While attending a home show, we talked with a salesman of spray-on foam insulation. He recommended that we remove all insulation on our attic floor and use his spray-on foam to cover the ...

Recommended for walls, floors, unvented and vented attics and ceilings, JM ocSPF insulation will insulate cavities of any shape, creating a “seamless” protective air barrier that minimizes or ...

Q. I live in a ranch-style home that was built in the late 1960s. Recently, I have been approached by two different contractors touting the energy savings benefits of making my attic space unvent ...

Question: I read a recent article you wrote about homes with sealed attics. Our house has one, and we think it’s great. We’ve had no problems with it. I have heard conflicting reports r… ...