Installation Guide

Siding Installation Guide / v20190507US 7
Joist Installation
A building professional should be consulted regarding vapor barriers and insulation for your project.
Where a vapor barrier is to be used, it should be a breathable type and must be positioned behind the
joists. The joist needs to have a minimum thickness of 1 inch (25 mm).
Wood joists should be xed into position at a maximum of 1.64 feet (500 mm) centers using a suitable
A4 Stainless Steel Countersunk Wood/Masonry screw. All joists needs to be at and leveled against the
wall surface use shims if necessary.
Horizontal Installation Vertical Installation
1.64 feet
Joist
Joist
1.64 feet