Good R Type Insulation For Attic

Choose from two types.

Good r type insulation for attic.

While there are additional considerations such as venting and moisture problems to take into account when you insulate under floors the united states department of energy recommends an r 25 rating in cold climates and an r 11 in warmer parts of the country. Both can be added to uninsulated attics or layered over existing material. Recommended home insulation r values. Loose fill or batt the common term for blanket 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. If an attic or bedroom rests above insulating this horizontal wall is crucial. Depending on where you live and the part of your home you re insulating walls crawlspace attic etc you ll need a different r value. The r value per inch for different types of insulation varies depending on the.

Typical recommendations for exterior walls are r 13 to r 23 while r 30 r 38 and r 49 are common for ceilings and attic spaces. And don t forget the ceiling. Once you ve decided which type is best for you examine the material options and prices to home in on the right product. Closed cell and open cell aka 2 pound and pound respectively.

Fiberglass is probably the most common type of insulation but be careful when handling it and. The higher the r value the more effective an insulating material is. Plus by law insulation in this wall is required to be fire rated due to the high probability of combustible liquids stored in this room and its lack of smoke detectors which adds an extra layer of safety to the space. They sport insulation values of approximately r 6 5 and r 3 6 per inch respectively.

For diy attic insulation you ve got two choices. Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation. These are large rolls of insulation that are easy to cut into usable shapes. Spray foam attic insulation spray foam offers the best attic insulation performance available.

What type of insulation should i use in my attic. Batt and blanket insulation. In general an attic s r value should be. Your home s r value score will guide you toward the type of insulation you need.