Page 82 - Westform Product Catalogue July 2025 Public
P. 82
Fastener GUIDE
JULY 2025
Exposed Fastener Panels
B B
A A A A A
Installation Type Placement - A Panel to Substrate Placement - B Panel Lap
INSTALLATION OVER PLYWOOD/OSB #14 MILLED POINT WOODGRIPPER
INSTALLATION OVER LUMBER #9 WOODGRIPPER #14 STITCH/LAP 22GA-29GA
INSTALLATION OVER STEEL FRAMING #12 / #14 SELF DRILLER 12GA-26GA
Concealed Fastener Panels Trim Attachment
A
A
Installation Type Placement - A Panel to Substrate #14 STITCH/LAP 22GA-29GA
-Trim to trim
-Trim to panel
Other options
Prolok 12 & 16 Rivets
#10 Panhead/Wafer Quad Drive -Trim to trim
(Not water tight)
Roofing nail
-Trims installed prior to
HF - Proboard - Clip style profiles panels.
INSTALLATION OVER PLYWOOD/OSB #10 ACQ Panhead Quad Drive
Gasketed Fasteners
CORRECTT
TOO TIGHT
OO LOOSE
CORRECT TOO LOOSE TOO TIGHT
#10 Panhead self driller Neoprene washer slightly Neoprene washer not Metal washer deformed.
visible at edge of metal visible, not enough Neoprene washer
INSTALLATION OVER STEEL FRAMING washer. Assembly is compression to seal extruded beyond edge
of washer.
weather tight.
properly.
