R-Values

Hand-Crafted Signature Series R-Values

Table 3:  R-Values For 8 in. (203 mm) Concrete Masonry Walls, hr.ft2.oF/Btua
Construction Density of
concrete
Cores empty Cores filled with b:
Loose-fill insulation Polyurethane
foamed insulation
Solid grouted
Perlite Vermiculite
pcf range mid range mid range mid range mid range mid
Exposed
block, both
sides
85 2.4-2.7 2.5 6.3-8.2 7.1 5.9-7.5 6.6 6.9-9.4 8.0 1.9-2.1 2.0
95 2.3-2.6 2.4 5.3-7.2 6.1 5.0-6.7 5.7 5.8-8.1 6.7 1.7-2.0 1.8
105 2.1-2.4 2.2 4.5-6.3 5.2 4.3-5.9 4.9 4.8-7.0 5.6 1.6-1.9 1.7
115 2.0-2.3 2.1 3.8-5.5 4.4 3.7-5.2 4.3 4.0-6.0 4.7 1.5-1.8 1.6
125 1.9-2.2 2.0 3.2-4.8 3.8 3.1-4.6 3.7 3.3-5.1 4.0 1.5-1.7 1.5
135 1.7-2.1 1.9 2.7-4.2 3.3 2.7-4.0 3.2 2.8-4.4 3.4 1.4-1.6 1.5
Table 5: R-Values For 12 in. (305 mm) Concrete Masonry Walls, hr.ft2.oF/Btua
Construction Density of
concrete
Cores empty Cores filled with b:
Loose-fill insulation Polyurethane
foamed insulation
Solid grouted
Perlite Vermiculite
pcf range mid range mid range mid range mid range mid
Exposed
block, both
sides
85 2.6-3.0 2.8 9.1-12.1 10.3 8.5-11.0 9.6 10.0-13.8 11.5 2.3-2.6 2.4
95 2.4-2.8 2.6 7.6-10.5 8.8 7.2-9.7 8.2 8.2-11.8 9.6 2.1-2.4 2.3
105 2.3-2.6 2.4 6.3-9.1 7.4 6.0-8.5 7.0 6.7-10.0 8.0 2.0-2.3 2.1
115 2.1-2.5 2.3 5.2-7.9 6.2 5.1-7.4 6.0 5.5-8.5 6.6 1.9-2.2 2.0
125 2.0-2.3 2.2 4.4-6.8 5.3 4.2-6.5 5.1 4.5-7.2 5.5 1.8-2.0 1.9
135 1.9-2.2 2.0 3.6-5.8 4.4 3.6-5.6 4.3 3.7-6.1 4.6 1.7-1.9 1.8

Additional R-values can be achieved with factory-installed expanded polystyrene, such as Korfil or Icon. Consult manufacturer for added R-values.

Information based on data published by the National Concrete Masonry Association. See NCMA TEK Note 6-2A.

R-Values

R-Values is available with pre-consumer recycled content. Ask about the new Chicago Green Series. In addition to the pre-consumer recycled content, these masonry units also contain post-consumer recycled content as well. Colors may vary so please make sure to ask for full size samples.