Page 171 - ICC IEBC 2018

APPENDIX C

[BS] TABLE C202.1.2
SUPPLEMENT FASTENERS AT PANEL EDGES AND INTERMEDIATE FRAMING
MAXIMUM SUPPLEMENTAL
MAXIMUM
EXISTING FASTENER SUPPLEMENTAL FASTENER SPACING FOR EDGE ZONE FOR V ult > 160 MPH
d
c
SPACING (EDGE OR INTERIOR ZONE LOCATIONS FOR
EXISTING FASTENERS FASTENER SPACING AND EXPOSURE C, OR V ult >
INTERMEDIATE FOR 130 MPH < V ult ≤ MPH V ult > 140 MPH AND EDGE 180 MPH AND EXPOSURE B
SUPPORTS) ZONES NOT COVERED BY THE
140 MPH
COLUMN TO THE RIGHT
4″ o.c. at panel edges and
b
Staples or 6d Any 6″ o.c. b 6″ o.c. b
b
4″ o.c. at intermediate supports
8d clipped head or round None necessary along edges of 4″ o.c. at panel edges and
a
b
a
head smooth shank 6″ o.c. or less None necessary panels but 6″ o.c. at intermediate 4″ o.c. at intermediate supports
supports of panel
8d clipped head or round 4″ o.c. at panel edges and
a
a
head ring shank 6″ o.c. or less None necessary None necessary 4″ o.c. at intermediate supports
6″ o.c. along panel edges and
a
8d clipped head or round a b 4″ o.c. at panel edges and
a
a
head smooth shank Greater than 6″ o.c. 6″ o.c. 6″ o.c. at intermediate supports 4″ o.c. at intermediate supports
of panel
8d clipped head or round a a 4″ o.c. at panel edges and
a
a
head ring shank Greater than 6″ o.c. 6″ o.c. 6″ o.c. 4″ o.c. at intermediate supports
For SI: 1 inch = 25.4 mm; 1 foot = 304.8 mm; 1 mile per hour = 0.447 m/s.
a. Maximum spacing determined based on existing fasteners and supplemental fasteners.
b. Maximum spacing determined based on supplemental fasteners only.
c. Interior zone = sheathing that is not located within 4 feet of the perimeter edge of the roof or within 4 feet of each side of a ridge.
d. Edge zone = sheathing that is located within 4 feet of the perimeter edge of the roof and within 4 feet of each side of a ridge.

152 2018 INTERNATIONAL EXISTING BUILDING CODE ®
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