Page 242 - Masonry and Concrete

Footings, Foundation Walls, Basements, and Slabs
241
FOOTINGS, FOUNDATION WALLS, BASEMENTS, AND SLABS

RECOMMENDED MINIMUM THERMAL
RESISTANCE (R) OF INSULATION
ZONE CEILING WALL FLOOR
1 19 11 11
2 26 13 11
3 26 19 13
4 30 19 19
5 33 19 22
6 38 19 22

NOTE: The minimum insulation R values recom-
mended for various parts of the United States
as delineated on the map of insulation zones.
FIGURE 6-45

Recommended R-values. (from Architectural Graphic Standards, 9th ed.)

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