Differences In Insulation For Attics

Both can be added to uninsulated attics or layered over existing material.

Differences in insulation for attics. They sport insulation values of approximately r 6 5 and r 3 6 per inch respectively. In the baltimore area the u s. Fiberglass insulation in rolls or batts can be easily added by the homeowner. 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.

Spray foam offers the best attic insulation performance available. 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. There are different types of attic insulation and they each have their pros and cons. It s available in fiberglass mineral wool plastic fibers and natural fibers.

Some types of insulation are found in older homes and some of them may no longer be used. Blanket insulation is available as batts or rolls and is the easiest diy insulation material. There are three common attic insulation types used today. 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. This type of insulation. Department of energy recommends r 49 attic insulation. 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.

Insulation level are specified by r value. 10 of your home heating bill costs stem from uninsulated floors. Fiberglass insulation is calculated based on the number of batts or rolls you need. Loose fill or batt the common term for blanket insulation.

Choose from two types. Attic insulation is measured by an r value which indicates how insulation controls the flow of heat and cold through your home. Cellulose insulation is calculated based on the depth of the blown in insulation. The table below shows what levels of insulation are cost effective for different climates and locations in the home.

Closed cell and open cell aka 2 pound and pound respectively. Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation. When installed properly both types of insulation fill all of the nooks and crannies in a space and make for a perfect air barrier. Batt spray and blown.

However building codes only require an r 38. The higher the r value the better the thermal performance of the insulation. For diy attic insulation you ve got two choices. Once you ve decided which type is best for you examine the material options and prices to home in on the right product.