R Value Loosefill Attic Insulation

The higher the r value the greater the insulating power.

R value loosefill attic insulation.

Unbonded loosefill insulation owens corning propink l77 pink fiberglas unbonded loosefill insulation is an alternative to roll or batt insulation in attics new construction or retrofit applications. An insulation r value chart or table can assist you with the calculation to ensure your attic or wall r values are adequate for your. Just how much you need for your residential or commercial building depends on a number of factors such as your heating system and location. The higher the r value the better the thermal performance of the insulation.

For example if your home has cellulose insulation at a depth of 8 inches between the joists the attic insulation has an r value of 3 7 times 8 or 29 6. Your home s age if your home is more than 10 year old you likely need more insulation. Loose fill fiberglass has an r value of r 2 2 to 2 7 per inch3. Compare insulation r values before you buy.

For loose fill insulation each manufacturer must determine the r value of its product at settled density and create coverage charts showing the minimum settled thickness minimum weight per square foot and coverage area per bag for various total r values. Insulation depth depending on your climate energy codes require varying r values for ceiling insulation. Lighter in weight than cellulose or mineral wool but it settles more than those materials so you ve got to put in a thicker layer to get the protection you need. There are other factors to consider.

Like cellulose you need a big machine to blow it in. There are many ways to retrofit a home with fiberglass and. Recycled glass or sand that s melted and spun into fibers. R means resistance to heat flow.

Where you live different climates require different insulation r values. Pros and cons of loose fill fiberglass attic insulation loose fill fiberglass seems to dominate attic insulation in new construction homes and has an r value of approximately 2 5 per inch. You can achieve better thermal performance in your attic by adding an additional layer of insulation. The higher the r value the greater the performance of the insulation.

Achieving the desired r value depends on both the depth of the insulation and its density. You can t simply buy it in bags and spread it around yourself. The r value of loose fill cellulose is r 3 2 to 3 8 per inch2.