How to Guide

Wall Construction
ENGINEERED WOOD CONSTRUCTION GUIDE
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FORM NO. B360P
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© 2011 APA – THE ENGINEERED WOOD ASSOCIATION
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WWW.APAWOOD.ORG
54
VERTICAL WALL JOINTS
Shiplap Butt
Reverse Board and Batten
Batten
Siding
Treat panel
edges with
water repellent
Note:
Nailing of both panel edges along shiplap joint is
recommended. The “double nailing” is required when
wall segment must meet wall bracing or engineered
shear wall requirements.
Use ring-shank
nails for the
battens, applied
near the edges
in two staggered rows
VERTICAL INSIDE & OUTSIDE CORNER JOINTS
T1-11 & Channel Groove
Butt & Caulk Corner Board Lap Joints Lap Siding (APA Sturd-I-Wall)
Lap siding
(typ.)
Caulk
Caulk
Caulk
Caulk
Siding
Siding
Siding
Siding
Siding
Siding
Corner boards
Building
paper
Blocking
(typ.)
Building
paper
Lap siding (typ.)
HORIZONTAL WALL JOINTS
Butt & Flash
Blocking
(flatwise or edgewise)
Blocking
(flatwise or edgewise)
Blocking
(flatwise or edgewise)
Shiplap joint
Lap top panel
over bottom panel
Flashing
(galv. or aluminum)
Lap
Shiplap
HORIZONTAL BELTLINE JOINTS
(For multistory buildings, when conventional lumber floor joists and rim boards are used, make provisions at horizontal joints for shrinkage of
framing, especially when applying siding direct to studs.)
Jog Exterior Stud Line
Band Board Over Panel Filler
Band Board In Relief
Floor plate
Rim Board
Siding (4' x 8')
Alum. or galv.
flashing
Up to 1/2" gap
when using conven-
tional lumber floor
& rim joists
2x10 band board
Filler
Siding (4' x 8')
Band board trim
Galv. ‘Z’ flashing
Galv. spikes or bolts
(countersink)
Plastic pipe spacer
(2" to 6" dia.)
WINDOW DETAILS
FIGURE 17
TYPICAL PANEL SIDING JOINT DETAILS
(Note: Water-resistive barrier [building paper or house wrap] is required behind siding.)
(For window details, see Build A Better Home: Walls, Form A530.)
Vertical Batten
Siding
Double top plate
Gap 1/8" min.
Double top plate
Rim Board