Correct Insulation For Attic

For diy attic insulation you ve got two choices.

Correct insulation for attic. Both can be added to uninsulated attics or layered over existing material. Lay the batts across the ceiling joists covering the existing insulation. Once you ve decided which type is best for you examine the material options and prices to home in on the right product. Existing 3 4 inches of insulation.

Insulating a finished attic there are two basic ways to insulate a finished attic. Then when winter comes along you could lose up to 25 of your home s heat from your attic alone. If only the living space will be insulated wrap the insulation around the room s walls and ceiling and then continue along the floor of the non living space. So with cold weather.

Blanket insulation is available as batts or rolls and is the easiest diy insulation material. If i have to keep the attic vented the following was suggested. The higher the r value the better the thermal performance of the insulation. A guide to proper attic insulation.

Loose fill or batt the common term for blanket 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. You can achieve better thermal performance in your attic by adding an additional layer of insulation. Well your attic has a dramatic impact on the temperature throughout the rest of your home as well.

It s available in fiberglass mineral wool plastic fibers and natural fibers. There are many different types of insulation all of which are readily available at your local home center. Without proper insulation your attic will heat up in the blazing california summers warming your home like a furnace. In this case the area behind the knee wall will be uncomfortably hot or cold.

Recommended insulation levels for retrofitting existing wood framed buildings. Continue laying down the insulation making sure the batts are pressed tightly together at all edge and end joints. Achieving greater r values in exterior walls in exterior walls add insulating sheathing to achieve a greater r value in your wall system. While wearing dust mask and gloves carry r 38 batts of unfaced fiberglass insulation into the attic.

Am i correct in assuming this. Although installing insulation in an unheated attic is usually a fairly straightforward job a variety of pitfalls await the unwary. It seems like a bad idea to let any air up to the cathedral ceiling regardless what the insulation is.