Page 121 - 2018_IRC

FOUNDATIONS

PRESSURE-PRESERVATIVE-TREATED

FLASHING
2 × 6 IN. STUD INSULATED
FIELD-APPLIED 2 × 6 IN. TOP PLATE AS APPROPRIATE AND WARM SIDE
VAPOR BARRIER
2 × 6 IN. TOP PLATE
2-IN. AIR GAP
1-IN.-THICK PRESSURE-PRESERVATIVE-
TREATED LUMBER OR PLYWOOD STRIP
PROTECTING TOP OF POLYETHYLENE FILM
FINISH GRADE SLOPE / IN.
1
2
PER FOOT, MIN. 6 FT. FROM
WALL
PRESSURE-PRESERVATIVE-
TREATED PLYWOOD
(SEE TABLE R404.2.3)
4 FT. (MAX. BACKFILL)
6 MIL POLYETHYLENE FILM
6 MIL POLYETHYLENE FILM
ON CRUSHED STONE OR
GRAVEL BACKFILL
s
MIN. 3.5-IN. CONCRETE SLAB WITH
VAPOR BARRIER AND OPTIONAL PRESSURE-PRESERVATIVE-
1-IN. SCREED BOARD TREATED 2 × 6 IN. BOTTOM
PLATE

6 IN. PRESSURE-PRESERVATIVE-
4 IN. 4 IN. TREATED 2 × 8 IN. FOOTING
PLATE
4 IN. GRAVEL OR CRUSHED 16 IN.
STONE FILL UNDER FLOOR
(SEE SECTION R403.2)

For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 mil = 0.0254.

FIGURE R403.1(2)
PERMANENT WOOD FOUNDATION BASEMENT WALL SECTION

96 2018 INTERNATIONAL RESIDENTIAL CODE ®
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