Section 51-11C-61063. Section A106.3—Insulation description.

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A106.3 Insulation description. Coefficients are provided for the following three configurations:

1. Two foot (or four foot) vertical: Insulation is applied directly to the slab exterior, extending downward from the top of the slab to a depth of 2 feet (or 4 feet) below grade.

2. Two foot (or four foot) horizontal: Insulation is applied directly to the underside of the slab, and run horizontally from the perimeter inward for 2 feet (or 4 feet). The slab edge is exposed in this configuration.

Note:
A horizontal installation with a thermal break of at least R-5 at the slab edge should use the vertical-case F-factors.

3. Fully insulated slab: Insulation extends from the top of the slab, along the entire perimeter, and completely covers the area under the slab. Thicker perimeter insulation covers the slab edge and extends 2 feet under the slab.

[Statutory Authority: RCW 19.27A.020, 19.27A.025 and chapters 19.27 and 34.05 RCW. WSR 13-04-056, § 51-11C-61063, filed 2/1/13, effective 7/1/13.]

RCW 19.27A.020, 19.27A.025 and chapters 19.27 and 34.05 RCW. WSR 13-04-056, § 51-11C-61063, filed 2/1/13, effective 7/1/13.

                    
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Note:	A horizontal installation with a thermal break of at least R-5 at the slab edge should use the vertical-case F-factors.