Closed Cell Foam Pad R Value

If you want to install spray foam in a stud wall and price is no object then it would seem to make sense to specify closed cell spray foam right.

Closed cell foam pad r value.

Open cell spray foam has an r value of about r 3 7 per inch while closed cell spray foam has an r value that may be as high as r 6 5 per inch. And keep in mind that you can always use a layered set up a 3 season air pad and a lightweight closed cell foam pad for example which lends versatility in addition to warmth. R value isn t a measure of warmth per se but of a pad s ability to prevent the loss of the warmth that your body generates. I d been using this sleeping pad in regular size from 2013 to 2016.

Closed cell foam has a higher r value than open cell foam usually about 6 0 per inch. R value measures a mat s resistance to heat flow. Camping on snow also requires more insulation. If you want to install spray foam in a stud wall and price is no object then it would seem to make sense to specify closed cell spray foam right.

Pads with higher r values do this more effectively than pads with lower r values. The durable closed cell foam pad adds insulation and helps protect the inflatable pad from punctures or other damage. The higher the r value the more insulation the sleeping mat will provide. But in the end if you don t mind the added weight or cost a sleeping pad with a higher r value is certainly a nice piece of gear to own.

Though it is less durable in comparison to traditional pads and its ridged surface may not be liked by everyone. Closed cell spray foams are between 2 and 4 lbs. They sport an r value of 6 0 8 0 per inch of insulation about double their open cell foam counterparts. But some closed cell foams like tiger foam s e84 closed cell formula have even higher ratings that go up to almost 7 per inch.

Just like for open cell foam r values are additive. In such circumstances i will often double up carrying both a closed cell foam mat in addition to a lightweight inflatable. Because r value is additive consider using a closed cell foam pad underneath an insulated moderate or high r value air pad or self inflating pad. A sleeping pad r value measures a sleeping pad s ability to prevent heat loss to the ground when you lie on it at night.

Two inches of closed cell foam will provide r12 r14 of insulation. Open cell spray foam has an r value of about r 3 7 per inch while closed cell spray foam has an r value that may be as high as r 6 5 per inch.