Similarly to fiberglass, blanket insulation is a great soundproofing material, helping to block sound as well as keep heat in ...

Several sources indicate that I should seal up the ridge and soffit vents and have the foam sprayed in the roof deck rafters. My concern is that the air in the attic will become stagnant.

But a fully insulated attic prevents the roof from warming, and the snow can continue to accumulate as it melts at a much slower rate. If the existing rafters are undersized, there is more risk of ...

You should lay an appropriate (usually R-30) insulation on the attic floor, but avoid tucking it down into the area where the roof rafters meet the top of exterior walls and joist.

This includes fiberglass, rock wool and/or cellulose insulation on the attic floor and in the walls. ... It is not critical how neatly the foil is stapled under the roof rafters.

Q. I have an attic that was just remediated for vermiculite insulation. It is wide open. A company said I should insulate the roof rafters instead of the joists (the floor) and board up the ridge ...

Q. Our Cape Cod style house in Florida was built in about 1925. In the "attic" area, which is used as a living space, the previous owner stapled insulation to the roof joists, which now is falling ...

However, I do have a concern about spraying foam directly on the underside of the roof sheathing and rafters. Closed cell insulation will not allow water to pass through it.

You are correct that the heat is likely coming from the roof. A dark-colored shingle roof can easily reach 150 degrees in the summer sun. Light-colored shingles reduce the roof temperature.