Putting Boards Over Attic Insulation

Building scientists the experts who study how buildings use and lose energy have known for years that a house loses more energy through the attic than anywhere else.

Putting boards over attic insulation. You can install inch plywood or oriented strand board osb in 4 foot by 8 foot panels over existing 16 inch oc joists. Faced insulation should not be placed on top of existing insulation in the attic. Whether you live in a warm weather state as i do or in a cooler northern climate it s hard to stay comfortable and keep your energy bills in check if you don t have adequate insulation in the attic. Always cover the tops of the ceiling joists to make sure the insulation is deep enough to reach your target r value and to prevent thermal bridging the heat loss that occurs through the wood framing.

The metal beams are adjustable to take into account variable joist spacing. It comes in standard size 4 8 sheets and smaller sizes in many different thicknesses from 1 4 inch to 2 inches. Some types of thicker foam board insulation are available but they may need to be special ordered. I d like to seal the outlets and then use a double layer of 1 inch 4 8 sheets over the entire 600 sq feet of walls with the reflective surface facing the attic and finishing it up with seam tape.

Foam insulation boards are the best material with which to work when undertaking a do it yourself project because foam. The system also provides an air gap between the top of the insulation and the underside of the board. This allows the full depth of attic insulation to work as intended. Find out more in.

Any new batt or roll insulation installed over existing insulation in the attic needs to be without a vapor retarder face. Installing foam insulation boards in the attic is no that hard and can save you money compared with professional installation. I d like to improve this insulation by using leftover 4 8 sheets of faced 1 inch polyiso rigd foam boards from another insulation project. Installing attic flooring for light storage only.

To install fiberglass batts over existing insulation lay the batts perpendicular to the joists so they do not compress the insulation below. Each silverglo insulation panel is sealed to attic framing and to neighboring panels creating a thick layer of insulation that includes a radiant barrier. Foam board insulation is easy to use and is a great diy way to add some insulation. Foam board insulation in the attic can cut down on energy costs and simultaneously promote a more environmentally sound way of daily living.

Work from the perimeter of the attic toward the door or hatch so that you don t trample all over the insulation you just put in. For joists spaced.