The higher the r value the better the thermal performance of the insulation.
Home attic insulation recommendations.
You can achieve better thermal performance in your attic by adding an additional layer of insulation.
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.
In general an attic s r value should be between r 30 and r 49.
We are also hopeful of being able to take advantage of.
And approximately 550 sq.
The best type of insulation for the attic and other areas of your home mainly depends on where you live.
We are interested in the new owens corning pure safety insulation if you install it.
In particularly cold climates you might go up to.
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.
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.
We have a 700 sq.
Add insulation to attic.
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.
Because the simplest and cheapest way to insulate an attic is to add material to the floor.
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.
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.
Existing 3 4 inches of insulation.
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.
Plan to pull up the flooring and layer new insulation on top of the old.
Of attic space above the ground floor with no insulation and problematic access.
Achieving greater r values in exterior walls in exterior walls add insulating sheathing to achieve a greater r value in your wall system.
Second story addition with 40 year old r 19 insulation in the attic that could be replaced or added to.