Home Attic Insulation Recommendations

Why attic insulation r value matters for california homeowners at this point you may be wondering why this r value matters so much especially when it s for an attic that you probably go into once a year to fetch your christmas decorations.

Home attic insulation recommendations.

Second story addition with 40 year old r 19 insulation in the attic that could be replaced or added to. But if the floor is covered in plywood you can t stuff enough insulation beneath it to do the job sufficiently not even in warm climates. Your attic should have a certain amount of insulation in it and the recommended level of insulation for your attic is dependent on where you live. Add insulation to attic.

Your home s r value score will guide you toward the type of insulation you need. We are interested in the new owens corning pure safety insulation if you install it. Typical recommendations for exterior walls are r 13 to r 23 while r 30 r 38 and r 49 are common for ceilings and attic spaces. You can achieve better thermal performance in your attic by adding an additional layer of insulation.

While federal and in some cases state guidelines for insulation levels are merely recommendations the local building code is the true authority over insulation requirements. And approximately 550 sq. Recommended attic insulation in california here in southern california and any other hot climate it s usually recommended to install both a radiant barrier and blown in fiberglass or cellulose in the attic in cooler climates it can. Depending on where you live and the part of your home you re insulating walls crawlspace attic etc you ll need a different r value.

The higher the r value the better the thermal performance of the insulation. If your insulation doesn t measure up and you need more installation can be done as a weekend diy project or you can call a professional installer to handle the job. We have a 700 sq. We are also hopeful of being able to take advantage of.

Of attic space above the ground floor with no insulation and problematic access. In general an attic s r value should be between r 30 and r 49. In particularly cold climates you might go up to. Existing 3 4 inches 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. Well your attic has a dramatic impact on the temperature throughout the rest of your home as well. Recommended insulation levels for retrofitting existing wood framed buildings.