Differences In Insulation For Attics

They sport insulation values of approximately r 6 5 and r 3 6 per inch respectively.

Differences in insulation for attics. Department of energy recommends r 49 attic insulation. However building codes only require an r 38. Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation. Insulation level are specified by r value.

Find your zone on the map and then use the chart to determine the level of insulation you need to properly insulate your attic walls floors and crawlspaces. Attic insulation is measured by an r value which indicates how insulation controls the flow of heat and cold through your home. When air can t move through it you have zero heat transfer through convection. Cellulose insulation is calculated based on the depth of the blown in insulation.

Blanket insulation is available as batts or rolls and is the easiest diy insulation material. The table below shows what levels of insulation are cost effective for different climates and locations in the home. For diy attic insulation you ve got two choices. Spray foam offers the best attic insulation performance available.

This type of insulation. 10 of your home heating bill costs stem from uninsulated floors. It s available in fiberglass mineral wool plastic fibers and natural fibers. Blown in insulation requires the least amount of work but requires special tools and equipment.

Fiberglass insulation is calculated based on the number of batts or rolls you need. Wall insulation can reduce a home s heat loss by 67 while attic insulation can lead to a 40 decrease in heating and cooling costs. Closed cell and open cell aka 2 pound and pound respectively. In the baltimore area the u s.

Batt spray and blown. Choose from two types. Foam in place insulation can be blown into walls on attic surfaces or under floors to insulate and reduce air leakage. R value is a measure of insulation s ability to resist heat traveling through it.

Some installations can yield a higher r value than traditional batt insulation for the same thickness and can fill even the smallest cavities creating an effective air barrier. Both can be added to uninsulated attics or layered over existing material. Once you ve decided which type is best for you examine the material options and prices to home in on the right product. There are three common attic insulation types used today.

There are different types of attic insulation and they each have their pros and cons. Fiberglass insulation in rolls or batts can be easily added by the homeowner. Loose fill or batt the common term for blanket insulation. The higher the r value the better the thermal performance of the insulation.