Completion
Attaching objects to siding
All external products (downspouts, shutters, and lights,
for example) are attached to walls after you’ve applied the
vinyl siding.
NOTE:
All external fixtures must be attached to a solid
backing (such as 3/4" exterior grade plywood) to provide
a secure mounting surface. Never attach a fixture directly
to vinyl siding.
When installing external products, you must allow for
expansion and contraction of siding.
You can allow for this movement in two ways:
The most convenient way to attach light fixtures is with light
blocks. Because they contain receiving channels to hold
siding panels, light blocks provide a simple way to allow for
expansion.
When attaching other fixtures, drill holes in the siding three
times the diameter of screws, bolts, or nails being used to
fasten objects. This provides adequate clearance so siding
can move freely underneath attached objects.
When
attaching objects, do not fasten tightly. It is also
recommended that you apply caulk around the screws.
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Wolverine Fit and Finish Installation Guide
