R Value Of 8 Poured Concrete Wall

2 x 4 wood stud wall 16 o c r 11 batts 1 2.

R value of 8 poured concrete wall.

Advantages of poured concrete foundation. Concrete sand gravel aggregate. Typical residential weight concrete 8 wall r 2 5. The last step is to pour concrete into the forms.

Poured concrete foundations provide a high level of strength and durability and can last for decades. Use the r value table below to help you determine the r value of your wall or ceiling assemblies. 1 25 2 nominal 1 1 2 1 88 2x4 3 1 2 4 38 2x6 5 1 2 6 88. 8 thick concrete slab or foundation wall has an r value of about 1 04 30 while lightweight aggregate filled 8 thick concrete has an r value of about 2 18 30.

Poured concrete walls are 8 10 inches thick and available with surface patterns like brick which provides a finished appearance. The r value of an uninsulated 8 inch thick basement wall built using normal weight concrete is 1 35 based on data from the 1993 american society of heating refrigeration and air conditioning engineers handbook. R value of single pane glass 0 91. 0 13 0 64 30.

Wood frame walls 3 plus r value of the insulation used floors above unheated spaces 2 plus r value of the insulation used. Concrete block 4 inch 0 80 concrete block 8 inch 1 11 concrete block 12 inch 1 28 brick 4 inch common 0 80 brick 4 inch face 0 44 poured concrete 0 08 soft wood lumber 1 25 2 inch nominal 1 inch 1 88 2 x 4 3 inch 4 38 2 x 6 5 inch 6 88 cedar logs and lumber 1 33 sheathing materials plywood 1 25. Concrete block makes a cost effective and structurally sound wall but it has. Cedar logs and lumber.

For instance if you have a material with an r value of 12 attached to another material with an r value of 3 then both materials combined have an r value of 15. To obtain a wall or ceiling assembly r value you must add the r values of the individual components together. R value r value of 8 20cm concrete block 1 11 r value of 12 30cm concrete block 1 28 r value of 8 20cm poured concrete 0 64 r value of 4 10cm brick 0 80 r value of 1 3cm sheetrock 0 45 r value of 1 3cm sheathing 1 31 for comparison. By doubling the thickness of the wall to 16 inches the r value only increases by 0 50.