Ceiling R Value Insulation

Resistance to the movement in temperature through walls ceilings and floors in your home or commercial building.

Ceiling r value insulation.

Find your zone on the map and then use the above insulation r value chart to determine the level of insulation you need to properly insulate your attic walls floors and crawlspaces. R value actually stands for resistive value. 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. The r in r value stands for resistance.

You will need a higher r value of insulation if you live in the northeast than if you live in southern california. An insulation product s resistance to heat flow is measured by its thermal and acoustic resistance or r value. The higher the r value the better the thermal performance of the insulation. Where you live different climates require different insulation r values.

Your home s age if your home is more than 10 year old you likely need more insulation. Check rim joists and unfinished basement walls and compare depth with an r value map and chart for your area. There are many ways to retrofit a home with fiberglass and. The higher the r value the greater the insulation performance.

If it isn t at least 19 inches deep add more. R value is a measure of insulation s ability to resist heat traveling through it. A common differentiating criteria between different types of insulation is the amount of r value they provide when correctly installed. 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.

R value measures how well certain building insulation materials can resist heat. Insulation level are specified by r value. If the walls and ceiling are closed in consider using loose fill insulation as this form of insulation uses a machine to get the insulation where it needs to go through a hole in the sheetrock. Let me explain when the general public hears an r 13 wall insulation they believe that in fact they have an r 13 insulation value in their exterior walls.

When determining how much insulation you need don t guesstimate calculate. What does insulation r value mean. Check between floor joists if vented and check perimeter walls if unvented. Slide a yardstick or tape measure into the existing insulation.

These r values are a sum meaning this should be the total r value once you add up the entire depth of insulation. Recommended home insulation r values. Insulation r value depends on a number of factors including thickness. The higher the r value the more effective that product will be at keeping your home cooler in summer and warmer in winter.

Insulate the garage s ceiling by using the recommended r value for your area as advised by the department of energy s oak ridge laboratory. The truth is this studs have an r value of 3 5.