Correct Insulation For Attic

A guide to proper attic insulation.

Correct insulation for attic.

While wearing dust mask and gloves carry r 38 batts of unfaced fiberglass insulation into the attic. So with cold weather. Both can be added to uninsulated attics or layered over existing material. Achieving greater r values in exterior walls in exterior walls add insulating sheathing to achieve a greater r value in your wall system.

You can achieve better thermal performance in your attic by adding an additional layer of insulation. Existing 3 4 inches of insulation. It seems like a bad idea to let any air up to the cathedral ceiling regardless what the insulation is. Continue laying down the insulation making sure the batts are pressed tightly together at all edge and end joints.

For diy attic insulation you ve got two choices. 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. Well your attic has a dramatic impact on the temperature throughout the rest of your home as well. Although installing insulation in an unheated attic is usually a fairly straightforward job a variety of pitfalls await the unwary.

In this case the area behind the knee wall will be uncomfortably hot or cold. If i have to keep the attic vented the following was suggested. Once you ve decided which type is best for you examine the material options and prices to home in on the right product. It s available in fiberglass mineral wool plastic fibers and natural fibers.

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. Am i correct in assuming this. Lay the batts across the ceiling joists covering the existing insulation. Blanket insulation is available as batts or rolls and is the easiest diy insulation material.

This type of insulation. Then when winter comes along you could lose up to 25 of your home s heat from your attic alone. There are many different types of insulation all of which are readily available at your local home center. The higher the r value the better the thermal performance of the insulation.

Without proper insulation your attic will heat up in the blazing california summers warming your home like a furnace. Add insulation to attic. Recommended insulation levels for retrofitting existing wood framed buildings.