The other way to do it is with a unvented roof system, closing off all the vents and applying spray foam insulation to the rafters on either side of the roofline and gable walls. This puts a hat ...

Box vents are usually squarish devices ... sealed or the living space is sealed off from the attic space with a vapor barrier like spray foam insulation. Read more: 10 Ways To Bring Old Hardwood ...

Proper attic insulation is the best way to prevent ... serve as a moisture vapor barrier if that is needed. Open-cell spray-foam insulation is roughly $1 to $1.25 per square foot and closed ...

Spray foam prevents heat from radiating through ... It isn’t enough to simply install attic vents; you must make sure air passes through them. It’s common for homeowners to install vents ...

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 ...

Note: over the bay section ONLY is closed cell spray foam / the remainder of the house is fiberglass with R-30 in the attic. 4. we have closed off the gable vents. Our roofing contractor felt this ...

Are the vents OK being exhausted to the attic (provided there is sufficient ... window and then filling the voids with low-expanding spray-foam insulation. As for your question about vent fans ...