Installation Instructions
7
7
Managing the expansion and contraction
Ÿ PVC products expand and contract through
temperature changes. This movement must be
taken in consideration when working with the
products.
Ÿ The amount of movement of a board is in relation to
it’s length. Therefore, the longer the board, the more
movement is likely.
Ÿ Window trim is typically assembled prior to
installation on the wall and are small enough not to
need additional expansion joints, etc.
Ÿ See drawing below for guidance on longer pieces.
Ÿ Glue scarf joint
Ÿ Cut board short for expansion
Ÿ Hide with adjacent board
Ÿ Fasteners 2” from ends max.
Ÿ Glue all miters
Ÿ DO NOT glue ship lap to allow for movement
Less then 12’ glued both ends
Managing expansion on longer runs
Above 50°F
Below 50°F
⅛”
Coat
Glue
Place a fastener 2” from the seam on both sides.
Trim Board/Fascia Joints
When joining boards in areas such as under eves on fascia, a
shiplap joint is recommended with the exception of at corners;
a mitered corner will give the best appearance.
Scarf joints are not recommended.
Miters
When mitering a corner, the following rules
apply:
• The trim board with a mitered end
should be no longer than 4’
• Always glue the ends of the boards
with PVC cement.
• Place a fastener 2” from the seam on
both sides.
Managing expansion/contraction on longer runs
Place a fastener 2” from the seam on both sides
Above 50
o
F Below 50
o
F
Paint
7
TRIM BOARD/FASCIA JOINTS
When joining boards in areas such as under eves or
on fascia, a shiplap joint is recommended with the
exception of at corners; a mitered corner will give the
best appearance.
Scarf joints are not recommended.
Miters
When mitering a corner, the
following rules apply:
Ÿ The trim board with a mitered
end should be no longer then
4’
Ÿ Always glue the ends of the
boards with PVC cement.
Ÿ Place a fastener 2” from the
seam on both sides.
Managing expansion/contraction on longer runs
Above 50°F
Below 50°F
⅛”
Paint
Glue
Place a fastener 2” from the seam on both sides.
2”
Glue Joint
No more than 4’ from miter
Ÿ Glue all miters
Ÿ DO NOT glue ship lap to allow for movement
7
TRIM BOARD/FASCIA JOINTS
When joining boards in areas such as under eves or
on fascia, a shiplap joint is recommended with the
exception of at corners; a mitered corner will give the
best appearance.
Scarf joints are not recommended.
Miters
When mitering a corner, the
following rules apply:
Ÿ The trim board with a mitered
end should be no longer then
4’
Ÿ Always glue the ends of the
boards with PVC cement.
Ÿ Place a fastener 2” from the
seam on both sides.
Managing expansion/contraction on longer runs
Above 50°F
Below 50°F
⅛”
Paint
Glue
Place a fastener 2” from the seam on both sides.
2”
Glue Joint
No more than 4’ from miter
Ÿ Glue all miters
Ÿ DO NOT glue ship lap to allow for movement
7
TRIM BOARD/FASCIA JOINTS
When joining boards in areas such as under eves or
on fascia, a shiplap joint is recommended with the
exception of at corners; a mitered corner will give the
best appearance.
Scarf joints are not recommended.
Miters
When mitering a corner, the
following rules apply:
Ÿ The trim board with a mitered
end should be no longer then
4’
Ÿ Always glue the ends of the
boards with PVC cement.
Ÿ Place a fastener 2” from the
seam on both sides.
Managing expansion/contraction on longer runs
Above 50°F
Below 50°F
⅛”
Paint
Glue
Place a fastener 2” from the seam on both sides.
2”
Glue Joint
No more than 4’ from miter
Ÿ Glue all miters
Ÿ DO NOT glue ship lap to allow for movement
7
TRIM BOARD/FASCIA JOINTS
When joining boards in areas such as under eves or
on fascia, a shiplap joint is recommended with the
exception of at corners; a mitered corner will give the
best appearance.
Scarf joints are not recommended.
Miters
When mitering a corner, the
following rules apply:
Ÿ The trim board with a mitered
end should be no longer then
4’
Ÿ Always glue the ends of the
boards with PVC cement.
Ÿ Place a fastener 2” from the
seam on both sides.
Managing expansion/contraction on longer runs
Above 50°F
Below 50°F
⅛”
Paint
Glue
Place a fastener 2” from the seam on both sides.
2”
Glue Joint
No more than 4’ from miter
Ÿ Glue all miters
Ÿ DO NOT glue ship lap to allow for movement
• Glue all miters
• DO NOT glue ship lap to allow for movement
• No more than 4’ from miter