Field Installation and Service Manual IMS108 | Page 11

3.6
Using nails in decorative molding is a neces-
sary evil. Each nail placement in a fi nished visible
surface will require some sort of touch up or repair and
if not enough are used, the molding may come loose
and require a service call.
Strike a balance in how many nails you use and where
they are placed to securely install the molding and mini-
mize the damage caused.
Guideline for Using Nails to Secure Finished
Crown Molding
Use 1” or 1-1/4”, 18ga. brads to fasten Crown Mold-
ing to Sub Crown.
Use carpenters glue at all Crown Molding joints such
as inside and outside corners and splices.
108
Using a single nail and glue to secure a joint is best.
Drive the nail through the side of the corner that is
least noticeable from view.
If a single nail is not suffi cient to secure the joint
tightly, drive a second nail from the opposite
direction and offset in height from the fi rst.
Three nails for a joint is excessive.
Keep nails at least 2” away from molding ends
unless you are making up a joint.
Space nails no further than 18” along a length.
Always maintain a consistent Sub Crown reveal.
3.7
Shorter
runs are often
harder to mate
at inside and
outside corners.
Preassemble
short return
pieces to longer
pieces prior to
installing when
possible.
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Section 1: IMS 108
11