We offer our review of the three most popular types of attic insulation with a look at each one s pros and cons.
R36 attic insulation.
R values like r 38 are used by the construction industry to describe the thermal resistance of insulation materials like those used to insulate your attic when you are looking at an r 38 insulation you are actually reading a description of its resistance rather than size or thickness of the material.
Insulation level are specified by r value.
The r value indicates how well insulation resists heat transfer.
90 grains might be approaching the ma.
Here s what i mean.
It makes adding insulation to your attic a breeze.
30 grains of black powder will drive that lead ball just fine.
Now that you ve air sealed your attic and basement check your attic insulation levels and add more if necessary.
Attic existing 3 4 inches of insulation uninsulated floor uninsulated wood frame wall insulated wood frame wall 1 r30 to r49 r25 to r30 r13 2 r30 to r60 r25 to r38 r13 to r19 n a 3 r30 to r60 r25 to r38 r19 to r25 and add r5 insulative wall sheathing beneath the new siding.
Improved insulation is a good step toward improving building efficiency particularly since the atlanta based american society of heating refrigerating and air conditioning engineers ashrae increased minimum roof insulation levels in 2007 in its standard 90 1 the first increase in 18 years and if that isn t enough to spur someone into action.
The attic is the easiest place to add insulation to improve your comfort and the energy efficiency of your home.
R value is a measure of insulation s ability to resist heat traveling through it.
The higher the r value the better the thermal performance of the insulation.
Its expert engineering lets you create the most comfortable environment without compromising your design.
Insulation decreases the amount of heat entering from outside when it s hot and traps warmth inside when it s cold.
Whoa whoa david oswald you ve just entered the domain of the law of diminishing returns.
A recent mckinsey co.
Insulation our building science makes insulation br smarter.
We love our diyers so take up our incentive to improve your attic insulation situation yourself.
From schools to businesses to family homes our insulation works everywhere.
Blown in insulation is installed using blowing machines.
Most homes are insulated in the attic and any floors located above unfinished basements or crawl spaces.
Blown in spray foam batts and blankets.
Sixty grains even faster.
You get a free blown in machine rental with your insulation purchase.
