Cellulose - Page 3 of 4

You can upgrade insulation without gutting your walls, but not until you know what’s in there now.

Insulation is an incredibly effective way of making sure that conditioned indoor air stays indoors.

Just because it’s recycled doesn’t mean it’s green. Let me explain why I won't use cellulose or blue-jean insulation. . .

Seal air leaks first, then blow in extra insulation for an energy-saving improvement that offers a great bang for the buck.

Q: I’m building a house with 2x4 studs, sprayfoam insulation in the stud cavities, and blown-in cellulose insulation over a plastic vapor barrier in the attic. Ross E. Iverson, Sheridan, WY…

Q: I am building a house in Michigan and don’t know whether to use housewrap. I plan to use oriented-strand-board sheathing, vinyl siding, and blown-in cellulose insulation. Is this an instance…

Q: What ventilation concerns do we face if we dense-pack cellulose into the rafter cavities between the ceiling and the roof? Bob Tidball, via email, None A: Bruce Harley, an engineer…

Q: Our house will have cathedral ceilings. Is an airspace between the insulation and roof sheathing necessary? I am concerned about a loss in energy efficiency if there is no…

Maybe, but other types of insulation offer installation advantages that make them more reliable.

Blown in behind the drywall, high-density cellulose air-seals as it insulates.