panels shall be aluminum or corrosion resisting steel. Fasteners for
attaching wall panels to supports shall provide both tensile and shear
strength of not less than 750 pounds per fastener. Fasteners for
accessories shall be the manufacturer's standard. Exposed wall fasteners
shall be color finished or provided with plastic color caps to match the
panels. Nonpenetrating fastener system for wall panels using concealed
clips shall be manufacturer's standard for the system provided.
2.4.1
Screws
Screws shall be as recommended by the manufacturer.
2.4.2
End-Welded Studs
Automatic end-welded studs shall be shouldered type with a shank diameter
of not less than 3/16 inch and cap or nut for holding panels against the
shoulder.
2.4.3
Explosive Actuated Fasteners
Fasteners for use with explosive actuated tools shall have a shank of not
less than 0.145 inch with a shank length of not less than 1/2 inch for
fastening panels to steel and not less than 1 inch for fastening panels to
concrete.
2.4.4
Blind Rivets
Blind rivets shall be aluminum with 3/16 inch nominal diameter shank or
stainless steel with 1/8 inch nominal diameter shank. Rivets shall be
threaded stem type if used for other than the fastening of trim. Rivets
with hollow stems shall have closed ends.
2.4.5
Bolts
Bolts shall be not less than 1/4 inch diameter, shouldered or plain shank
as required, with proper nuts.
2.5
SEALANT
Sealant shall be an elastomeric type containing no oil or asphalt, as
recommended by the wall panel manufacturer. Silicone based sealants are
prohibited, unless approved otherwise by the panel manufacturer and the
Contracting Officer. Exposed sealant shall be [colored to match adjacent
components] [clear] and shall cure to a rubberlike consistency. Concealed
sealant shall be non-hardening type. [Sealant placed in the panel seams
shall be provided in accordance with the manufacturer's recommendations.]
2.6
GASKETS AND INSULATING COMPOUNDS
Gaskets and insulating compounds shall be nonabsorptive and suitable for
insulating contact points of incompatible materials. Insulating compounds
shall be nonrunning after drying.
2.7
INSULATION
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NOTE: Coordinate with the appropriate insulation
specification section.
SECTION 07413
Page 16
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