Page 134 - 2018_IRC

FOUNDATIONS

INSULATION DETAIL
FLASHING PER SECTION R703.8 FROST-PROTECTED SHALLOW
INSULATION PROTECTION PER SECTION R403.3.2 FOUNDATION SLAB-ON-GRADE
FLOOR PER SECTION R403.3
FINISH GRADE OR CONCRETE
SLAB OF ADJACENT UNHEATED
SLAB-ON-GRADE STRUCTURE
12″ MAX.
BEAM LINTEL OR
CANTILEVER
TO CARRY LOAD 12″ MAX.
OVER NONLOAD-
BEARING INSULATION
CONCRETE MASONRY OR
PERMANENT WOOD NOMINAL 4 SCREEN AND WASHED
FOUNDATION GRADE BEAM GRAVEL OR CRUSHED STONE,
OR WALL OF ADJACENT DRAINED PER SECTION R403.3.3
UNHEATED STRUCTURE
VERTICAL WALL INSULATION a
FOOTING AS REQUIRED HORIZONTAL INSULATION a

HORIZONTAL INSULATION PLAN

FOUNDATION PERIMETER

ATTACHED SLAB
FOUNDATION OF HEATED BUILDING AREA
UNHEATED
SLAB-ON-GROUND
STRUCTURE PER C
SECTIONS R403.1
AND R403.2
A
B C

For SI: 1 inch = 25.4 mm.
a. See Table R403.3(1) for required dimensions and R-values for vertical and horizontal insulation.

FIGURE R403.3(3)
INSULATION PLACEMENT FOR FROST-PROTECTED FOOTINGS ADJACENT TO UNHEATED SLAB-ON-GROUND STRUCTURE

A

B
FROST-PROTECTED
SHALLOW FOUNDATION
FOUNDATION OF HEATED
STRUCTURE PER
SECTIONS R403.1,
R403.2 AND R403.3.2
C

A C
INSIDE CORNER
FIGURE R403.3(4)
INSULATION PLACEMENT FOR FROST-PROTECTED FOOTINGS ADJACENT TO HEATED STRUCTURE

2018 INTERNATIONAL RESIDENTIAL CODE ® 109
Copyrighted © 2017 by, or licensed to, ICC (ALL RIGHTS RESERVED); licensed to UL, LLC pursuant to License Agreement with ICC. No further reproductions authorized or distribution authorized.
ANY UNAUTHROIZED REPRODUCTION OR DISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT; AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER.