The information on this page is based on data considered to be true and accurate based on periodic internal.
R value of 2 rigid insulation flat roof insulation.
They keep your home at a comfortable temperature without the need to crank your heat.
See also material data sheet msds 1511 or msds 1911.
1 when joints penetrations detailed appropriately.
To convert rsi to r value multiply the rsi by 5 67826.
R value measures how well certain building insulation materials can resist heat.
The higher the r value the greater the insulation performance.
Ft and 3 board is about 1 26 per foot.
To convert the r value of a specific thickness of a material to rsi divide the r value by 5 67826.
For example two inches of extruded polystyrene with an r value of 11 has an rsi of 1.
Well it is more like 0 91 per sq.
These prices are in massachusetts and will likely be another 10 20 lower in mid west states and south.
Install it anywhere from the roof to the foundation.
Rigid insulation is one of the best tools to reduce your energy costs.
Ma and northeast in general are among the highest cost areas for building materials and construction services.
Know exactly how much you need with our project calculators.
You can even place it under the foundation slab.
When determining how much insulation you need don t guesstimate calculate.
When looking at these data sheets you should remember that although the standard r value for a given material is per inch manufacturers often publish the total r value of a product reflecting the actual thickness of that particular product.
Rsi r value système international is the metric equivalent.