Good R Type Insulation For Attic

Once you ve decided which type is best for you examine the material options and prices to home in on the right product.

Good r type insulation for attic.

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. For diy attic insulation you ve got two choices. Your home s r value score will guide you toward the type of insulation you need. If an attic or bedroom rests above insulating this horizontal wall is crucial.

And don t forget the ceiling. Batt and blanket insulation. Spray foam attic insulation spray foam offers the best attic insulation performance available. 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.

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. Insulation level are specified by r value. What type of insulation should i use in my attic. In general an attic s r value should be.

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. Loose fill or batt the common term for blanket insulation. Both can be added to uninsulated attics or layered over existing material. Recommended home insulation r values.

They sport insulation values of approximately r 6 5 and r 3 6 per inch respectively. Choose from two types. 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.

These are large rolls of insulation that are easy to cut into usable shapes. If the joists are 10 inches deep the cavity can take high density r 30 insulation which is 8 1 2 inches thick more than enough for floor insulation. The r value per inch for different types of insulation varies depending on the. Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation.