Here s a handy r value table that covers most types of roof coverings building insulation and a few other materials.
R value roof michigan.
R 408 31065 equivalent u factors.
The higher the r value the greater the insulation performance.
The following table provides typical r values and rsi for various materials these r values were taken from manufacturer technical data sheets and are the reported r values per inch of actual products.
The minimum ceiling insulation r values shall be r 24 in zones 5 to 7.
State only mi michigan ashrae 90 1 2007 5 r 20 6 r 20 7 r 20 state only mn minnesota minnesota commercial state building code 6 r 30.
Complying with the revisions to the michigan uniform energy code muec is easier than you may think.
See the department of energy s doe ranges for recommended levels of insulation below.
Recommended home insulation r values.
Know exactly how much you need with our project calculators.
The higher the r value the better the thermal performance of the insulation.
R value state local al alabama 2015 alabama commercial energy code 2 r 25 3 r 25 state.
Depending on where you live and the part of your home you re insulating walls crawlspace attic etc you ll need a different r value.
The r in r value stands for resistance.
Insulation r value requirements for michigan what is r value.
Insulation level are specified by r value.
Resistance to the movement in temperature through walls ceilings and floors in your home or commercial building.
For a very good introductory overview article on r value see r values over at the website of.
You should of course see the manufacturer provided technical data sheet for the r value of specific products.
When determining how much insulation you need don t guesstimate calculate.
R value is a measure of insulation s ability to resist heat traveling through it.
Meeting the minimum required thermal performance criteria for both u factor and r value.
To learn more about r value see roof online s r value page.
Minimum r value non residential above roof deck 19727 57th avenue east puyallup wa 98387 web.
For new residential construction projects compliance with the muec can be demonstrated by any of the following.
The minimum wall r value shall be r 13 in all zones.
R value measures how well certain building insulation materials can resist heat.