1.2
DEFINITIONS
1.2.1
Field-Formed Seam
Seams of panels so configured that when adjacent sheets are installed the
seam is sealed utilizing mechanical or hand seamers. Crimped (45 degree
bend), roll formed (180 degree bend), double roll formed (2 - 180 degree
bend), and roll and lock systems are types of field-formed seam systems.
1.2.2
Snap Together Seam
Panels so configured that the male and female portions of the seam
interlock through the application of foot pressure or tamping with a
mallet. Snap-on cap configurations are a type of snap together system.
1.2.3
Pre-Formed
Formed to the final, less field-formed seam, profile and configuration in
the factory.
1.2.4
Field-Formed
Formed to the final, less field-formed seam, profile and configuration at
the site of work prior to installation.
1.2.5
Roofing System
The roofing system is defined as the assembly of roofing components,
including roofing panels, flashing, fasteners, and accessories which, when
assembled properly result in a watertight installation.
1.3
SYSTEM DESCRIPTION
1.3.1
a.
Provide continuous length panels with no joints or seams, except
where indicated. Individual panels shall be removable for
replacement of damaged material.
b.
There shall be no exposed or penetrating fasteners except where
shown on the approved shop drawings. Fasteners into wood shall be
stainless steel sheet metal screws with full length threads.
Fasteners into steel shall be stainless steel or cadmium plated
stainless steel screws inserted into predrilled holes. Length and
diameter of screws shall be sufficient to meet the design loads
with a suitable factor of safety for the material to which the
roofing components are attached. Calculate fastener capacity in
accordance with AISI SG-973, AA ADM1 or AF&PA T101 as applicable.
c.
Roof panel standing seam shall include a capillary break and be
mechanically locked closed by the manufacturer's locking tool.
The seam shall include a continuous sealant when required by the
manufacturer to withstand the rainfall and wind specified in
paragraph entitled "Manufacturer's Requirements."
d.
Roof panel anchor clips shall be concealed and designed to allow
for thermal movement of the panels, except where specific fixed
points are indicated.
SECTION 07612N
Page 7
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