Correct Insulation For Attic

Recommended insulation levels for retrofitting existing wood framed buildings.

Correct insulation for attic. You can achieve better thermal performance in your attic by adding an additional layer of insulation. It s available in fiberglass mineral wool plastic fibers and natural fibers. In this case the area behind the knee wall will be uncomfortably hot or cold. It seems like a bad idea to let any air up to the cathedral ceiling regardless what the insulation is.

Once you ve decided which type is best for you examine the material options and prices to home in on the right product. This type of insulation. Achieving greater r values in exterior walls in exterior walls add insulating sheathing to achieve a greater r value in your wall system. For diy attic insulation you ve got two choices.

Continue laying down the insulation making sure the batts are pressed tightly together at all edge and end joints. Both can be added to uninsulated attics or layered over existing material. Loose fill or batt the common term for blanket insulation. A guide to proper attic insulation.

So with cold weather. Lay the batts across the ceiling joists covering the existing insulation. I believe for a vented attic claifornia limate zone 9 suggest smart attic insulation to be either ceiling insulation to be r38 with radiant barrier. While wearing dust mask and gloves carry r 38 batts of unfaced fiberglass insulation into the attic.

The higher the r value the better the thermal performance of the insulation. Am i correct in assuming this. Then when winter comes along you could lose up to 25 of your home s heat from your attic alone. Well your attic has a dramatic impact on the temperature throughout the rest of your home as well.

Blanket insulation is available as batts or rolls and is the easiest diy insulation material. Although installing insulation in an unheated attic is usually a fairly straightforward job a variety of pitfalls await the unwary. There are many different types of insulation all of which are readily available at your local home center. Add insulation to attic.

Existing 3 4 inches of insulation. If i have to keep the attic vented the following was suggested. Insulating a finished attic there are two basic ways to insulate a finished attic.