Make sure your home is properly insulated in all these locations.
Insulation value for attic required in texas.
R value is a measure of insulation s ability to resist heat traveling through it.
You can mix the type and material of insulation too.
Insulation level are specified by r value.
Blown fiberglass attic insulation has an r value of 2 2 per inch so 12 inches of it would give you an r value of 26 4 in your attic installation project.
Inspecting your attic insulation.
Each bag lists the required depths for a range of r values and the number of bags needed to cover 1 000 square feet at those depths.
Uninsulated attic spaces are responsible for significant heat loss since heat rises in a building.
The table below shows what levels of insulation are cost effective for different climates and.
Loose fill or batt the common term for blanket insulation.
Achieving greater r values in attics.
Insulation depth shall be the depth of the footing or 2 feet whichever is less in climate zones 2 3 for heated slabs.
Residents of southern and central texas should insulate their attics to at least r 30 or about 9 5 inches of conventional fiberglass batt insulation.
Insulation ratings can be improved by adding more layers of insulation.
The open cell polyurethane foam has an r value of 3 5 to 3 6 per inch with a price tag of 1 1 20 square foot.
Diyers can use this foam for small jobs such as insulating door frames.
For batts or rolls calculate.
Yes generally a higher r value means a more effective insulator but the highest r value possible may not be necessarily right for your project.
The higher the r value the better the thermal performance of the insulation.
The ideal attic insulation r value is different than the ideal wall insulation r value.
For diy attic insulation you ve got two choices.
For loose fill read labels.
What r value is best for my home.
If you live in the texas panhandle consider increasing your insulation level to at least r 38.
Measure your attic s square footage.
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.
First things first you need to go up into your attic inspect the condition of the insulation and calculate the current level of insulation.
The required slab edge r values for heated slabs.
Special insulation exceptions related to ceilings with attic spaces ceilings without attic spaces masonry veneer and thermally isolated sunrooms are set forth in iecc section.
