Installation Guide

26 | Diamond Kote Building Products Application Guide 6.18
ARCH TRIM INSTALLATION
GENERAL
• It's recommended to install arched trims
around the opening before cutting or
installing the sides or bottom trim.
• Read and understand instructions.
• Carefully remove trim from protective
packaging.
• Place the Arched Trim over the arched
area and center it so the bottom ends
are level.
FASTENING:
• Fastener length needs to be long enough
to fully penetrate structural framing or
wood structural panels and structural
framing a minimum of 1 inch.
• Minimum hot-dipped galvanized nail
with a full round head is required, ring
shank fasteners are recommended.
• Trim must be fastened with two nails
at both ends, with additional fasteners
spaced a maximum of 24 inches o.c.
along the length of the board.
FLASHING:
• Flashing is required to protect the top
edge of trim from weather.
• It's recommended to ash along the top
of trim utilizing a bendable head ashing
such as ASTRO Flashing, or similar.
(go
to: astroplastics.com/products/astro-ashing/)
• Follow all head ashing manufactures
installation guidelines.
• All ashing materials should have
a minimum 4 inch upper leg. Add a
minimum 4 inch wide adhesive ashing
to ashing legs less than 4 inches.
• When integrating ashing with a water-
resistive barrier (WRB), be sure to follow
the WRB installation instructions.
FINISHING:
• Install siding around the Diamond Kote
®
Arched Trim leaving the proper gap,
and sealing joints as required by the
manufacturer.
ROSETTES
FASTENING PLACEMENT:
• Fasten Rosettes with a minimum of 2
fasteners placed at alternating edges
3/8" from ends and edges.
FASTENER TYPE:
• Fastener length needs to be long enough
to fully penetrate structural framing or
wood structural panels and structural
framing a minimum of 1 inch.
• Minimum hot-dipped galvanized nail
with a full round head is required, ring
shank fasteners are recommended.
3/8”
3/8”
3/8”
3/8”
3/8"
3/8"
3/8"
3/8"