Attic Insulation Over Old Insulation

Although insulation professionals will handle the installation for you here are some things to keep in mind about removing old insulation and installing new insulation over old insulation according to energy star.

Attic insulation over old insulation.

This is probably the easiest method to install radiant barrier atticfoil is to lay the foil out over the existing insulation on the attic floor. Faced insulation should not be placed on top of existing insulation in the attic. The higher the r value the better the thermal performance of the insulation. Insulation levels are specified by r value.

When the time comes to sell your home a well insulated attic is a plus. Caulk window trim and use weatherstripping to reduce air leaks. To install fiberglass batts over existing insulation lay the batts perpendicular to the joists so they do not compress the insulation below. Believe it or not there are situations in a home when you should remove the old attic insulation before adding more over the existing and in this short video.

Both can be added to uninsulated attics or layered over existing material. One of the most common materials containing asbestos fibers is attic and wall insulation. R value is a measure of insulation s ability to resist heat flow. Add the right kind of insulation.

Install siding over the insulation. In older homes specifically asbestos may be found in many different materials from pipe insulation to flooring adhesive to roof shingles. These r values are a sum meaning this should be the total r value once you add up the entire depth of insulation. Replace old windows with energy efficient units.

The recommended level for most attics is to insulate to r 38 or about 10 to 14 inches depending on insulation type. Best of all insulation is relatively easy to install and the average attic can be completed over the course of a weekend. This method can be used in any climate though it historically has been most popular in colder climates. Once you ve decided which type is best for you examine the material options and prices to home in on the right product.

For diy attic insulation you ve got two choices. Loose fill or batt the common term for blanket insulation. But just because your insulation is old doesn t mean it is dangerous. One way to insulate walls of an old house is to focus on the home s exterior.

Laying foil over on top of insulation on the attic floor. Apply a house wrap vapor barrier to exterior walls.