CBIS Korfil
Protection is a concrete idea.

  		Thermal Properties of Korfil, ICON and Unitherm

* The R- and U-values presented are based upon the ASHRAE Series-Parallel Isothermal Planes method as detailed in the ASHRAE Handbook of Fundamentals, 1993 Edition, Chapter 22, page 22.4. Physical block dimensions were obtained from ASTM C 90. Additional information was obtained from NCMA Technical Publication TEK 6-2, 1988. A complete Engineering Report covering the values listed is available upon request.

6 Inch — 2 Core Masonry Unit

DENSITY OF BLOCK--LBS/CU.FT. CORES EMPTY CORES INSULATED
Rt U Rt U
80 2.64 .38 6.45 .16
95 2.42 .41 5.39 .19
105 2.29 .44 4.76 .21
115 2.17 .46 4.21 .24
125 2.05 .49 3.69 .27
135 1.95 .51 3.25 .31

8 Inch — 2 Core Masonry Unit

DENSITY OF BLOCK--LBS/CU.FT. CORES EMPTY CORES INSULATED
Rt U Rt U
80 2.86 .35 7.74 .13
95 2.61 .38 6.55 .15
105 2.46 .41 5.83 .17
115 2.33 .43 5.17 .19
125 2.21 .45 4.56 .22
135 2.10 .48 4.01 .25

10 Inch — 2 Core Masonry Unit

DENSITY OF BLOCK--LBS/CU.FT. CORES EMPTY CORES INSULATED
Rt U Rt U
80 3.00 .33 8.52 .12
95 2.73 .37 7.25 .14
105 2.57 .39 6.48 .15
115 2.43 .41 5.76 .17
125 2.31 .43 5.09 .20
135 2.19 .46 4.48 .22

12 Inch — 2 Core Masonry Unit

DENSITY OF BLOCK--LBS/CU.FT. CORES EMPTY CORES INSULATED
Rt U Rt U
80 3.12 .32 9.38 .11
95 2.83 .35 8.09 .12
105 2.66 .38 7.27 .14
115 2.52 .40 6.51 .15
125 2.38 .42 5.78 .17
135 2.26 .44 5.11 .20

12 Inch Cavity Wall, 4 Inch Outer Wythe, ¾ Air Space, 8 Inch 2 Core Block

DENSITY OF BLOCK--LBS/CU.FT. CORES EMPTY CORES INSULATED
Rt U Rt U
80 4.26 .23 9.14 .11
95 4.01 .25 7.95 .13
105 3.86 .26 7.23 .14
115 3.73 .27 6.57 .15
125 3.61 .28 5.96 .17
135 3.50 .29 5.41 .18

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