Home Attic Insulation Recommendations

Achieving greater r values in exterior walls in exterior walls add insulating sheathing to achieve a greater r value in your wall system.

Home attic insulation recommendations.

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. In particularly cold climates you might go up to. The best type of insulation for the attic and other areas of your home mainly depends on where you live. 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.

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. Add insulation to attic. 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. 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.

In general an attic s r value should be between r 30 and r 49. 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. Existing 3 4 inches of insulation. We are interested in the new owens corning pure safety insulation if you install it.

We have a 700 sq. 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. The higher the r value the better the thermal performance of the insulation. Recommended insulation levels for retrofitting existing wood framed buildings.

You can achieve better thermal performance in your attic by adding an additional layer of insulation. Your home s r value score will guide you toward the type of insulation you need. Second story addition with 40 year old r 19 insulation in the attic that could be replaced or added to. Of attic space above the ground floor with no insulation and problematic access.

Plan to pull up the flooring and layer new insulation on top of the old. We are also hopeful of being able to take advantage of. And approximately 550 sq.