Rmax wall and ceiling insulation products for more than 35 years rmax has been creating insulation solutions based on the latest building science.
Roof and wall insulation.
Find your zone on the map and then use the chart to determine the level of insulation you need to properly insulate your attic walls floors and crawlspaces.
Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation.
See the department of energy s doe ranges for recommended levels of insulation below.
Roof and wall nail base insulation.
Keep your space dry with faced insulation.
Layer more insulation over the old for more effectiveness.
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Learn how to install with care.
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.
It uses a sheet of paper to control moisture vapor between walls and floors.
The format of house insulation you need depends on where you put it and if you need to control moisture.