Installation Guide

Allow 1/8 inch per 18 feet of Trim for expansion and contraction. Allow this
space at both ends of a long run.
Proper fastening along the entire length will minimize expansion and
contraction of the Trim.
Glued joints between trim pieces will help eliminate separation.
To minimize seams, use scarf joints which also minimize expansion and
contraction of Trim.
Window and Door Trim
Cladding and Trim are not watertight barriers. Before you install cladding materials or
Trim, flash all openings so that water is shed to the exterior of the cladding and Trim.
Install flashing along the bottom of the window. The width of the flashing
must extend beyond the width of the trim being installed.
Install side flashings by overlapping the bottom flashing; the width of the
flashing must extend beyond the width of the Trim being installed.
Install the top flashing by overlapping the tops of the side flashing.
To install the Trim, miter the joints and use a PVC adhesive (See previous
gluing instructions) to adhere the joints. Fasten the Trim to the substrate
on both sides of the miter. Use at least (2) fasteners per board.
Spanning
Trim is decorative and should not be used in load bearing applications.
Soffit Applications:
Before you install Trim as a soffit, review and comply with all local building
codes and regulations regarding wall construction, including the proper use of
sheathings, framing, weather resistant barriers, flashings, ventilation
requirements and other building materials and systems. Shim the wall as
necessary.
When spanning greater than 16 inches use a minimum ¾ inch thick board
or ¾ inch sheet. Install blocking and bracing as needed.
½ inch bead board should be spanned no more than 16 inches.
Ceiling Applications:
When spanning greater than 16 inches, use a minimum ¾ inch thick
board or ¾ inch sheet.
If temperature at installation is 40°or less, do not span beyond
12inches.
½ inch bead board should be spanned no more than 16 inches.
Do not span any PVC Trim product in a ceiling application more than
24 inches.