Best U Value Attic Insulation

In general an attic s r value should be between r 30 and r 49.

Best u value attic insulation.

Both can be added to uninsulated attics or layered over existing material. See more on different types of insulation. U value 0 11w m2k 0 2w m2k. Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation.

The insulation is typically expanded polystyrene and having insulation inside and out gives a u value of at least 0 2w m2k with a wall thickness of 250mm. U value insulation drywall good better and best attic insulation solutions guide 11 price guide good better best u value result 0 13 0 11 150mm 0 15 200mm 200mm 150mm 150mm 200mm back stop u value 0 16 for best results your u value target should be 0 11 or better check list. Rolls and batts are produced of mineral wool and fiberglass. Insulation layer between the ceiling joist.

Loose fill or batt the common term for blanket insulation. Different insulation materials have unique strengths and weaknesses and some attics will be more suited for certain material than others. Loose fill or batt insulation is typically installed in an attic. Loose fill insulation is usually less expensive to install than batt insulation and provides better coverage when installed properly.

Once you ve decided which type is best for you examine the material options and prices to home in on the right product. In particularly cold climates you might go up to r 60. A vast majority of production builders prefer to use batt insulation for the walls of the homes that they construct however there is a strong case that needs to be made for blown in fibreglass. Though r value is a the higher the better measurement the insulation material with the highest r value isn t necessarily the best choice for your house.

For diy attic insulation you ve got two choices. Some systems offer the option to increase the internal insulation and can provide a u value as low as 0 11w m2k with a wall thickness of 335mm. Having the correct amount of attic insulation can help you maintain a comfortable temperature throughout your home and help save money on your energy bills plus prevent major issues like ice dams in the winter. To find out if you have enough attic insulation measure the thickness of the 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. Your home s r value score will guide you toward the type of insulation you need. If you think you re among the 90 of us homes that are under insulated 1 performing a simple insulation inspection will help you determine your insulation needs.