Proper attic insulation is the best way to prevent heat loss in the winter and retain cool air in the summer.
Are attics required to have insulation.
R value is a measure of insulation s ability to resist heat flow.
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Your attic should have a certain amount of insulation in it and the recommended level of insulation for your attic is dependent on where you live.
For example if you have a type of insulation that has an r value of r 5 per inch of thickness you will need a depth of 6 inches of this insulation installed in your attic to reach r 30 if you live in zones 2 or 3.
Note from this chart that the ideal r value differs for each part of your home.
Inspecting your attic insulation.
So it s time to pay close attention to what s happening up there.
The recommended level for most attics is to insulate to r 38 or about 10 to 14 inches depending on insulation type.
Both can be added to uninsulated attics or layered over existing material.
R value is a measure of insulation s ability to resist heat traveling through it.
It makes adding insulation to your attic a breeze.
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Loose fill or batt the common term for blanket insulation.
The table below shows what levels of insulation are cost effective for different climates and locations in the home.
The higher the r value the better the thermal performance of the insulation.
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The higher the r value the better the thermal performance of the insulation.
Insulation levels are specified by r value.
Once you ve decided which type is best for you examine the material options and prices to home in on the right product.
Blown in insulation is installed using blowing machines.
Insulation level are specified by r value.
First things first you need to go up into your attic inspect the condition of the insulation and calculate the current level of insulation.
Your home may not have enough insulation even when you follow your building jurisdiction s requirements for insulation.
Batt insulation packages contain more square feet than rolls.