2.5
ACCESSORIES
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NOTE: Custom aluminum radiuses, and custom miters
and intersections with welded corners or taped backs
are available. Aluminum shapes with clear anodized,
color anodized, or baked enamel finishes may be used
where required for aesthetic purposes. Aluminum
shapes are more costly than standard steel or PVC
shapes.
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Accessories shall be [roll formed galvanized steel, or rigid polyvinyl
chloride (PVC)] [_____], except that cornerite and striplath shall be
formed from steel sheets with manufacturer's standard galvanized coating.
Vinyl members shall be in accordance with ASTM D 1784. Welded wire corner
reinforcements shall be zinc coated, galvanized 1.4 mm 17 gauge steel wire
conforming to ASTM A 185. Furring shall include hangers, bolts, inserts,
clips, fastenings, and attachments of number, size, and design to develop
the full strength of the members.
2.6
STEEL FRAMING
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NOTE: Stud sizes and framing dimensions and details
will be indicated on the drawings. Framing will be
designed for a maximum deflection of L/240 studs
only assembly or a maximum deflection of L/360 for
completed assembly, based on wind load design
requirements in TM 5-809-1.
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Steel framing shall be as shown and shall be manufacturers standard
products with shop applied protective coating.
2.7
METAL LATH
Metal lath shall conform to ASTM C 847, types and weights in accordance
with the various spacing shown in ASTM C 841. Lath for vertical
application on steel and wood framing supports shall be expanded metal or
welded or woven wire and shall have paper backing with a minimum vapor
permeance of 287.2 ng per Pa per second per square meter 5 perms. Woven
wire lath shall be a maximum 38 x 38 mm 1-1/2 x 1-1/2 inch mesh wire of not
less than 1.37 mm 0.0540 inch nominal diameter and shall conform to ASTM C
1032. Welded wire lath shall conform to ASTM C 933, with openings not to
exceed 50 x 50 mm 2 x 2 inches. Expanded metal or wire lath shall be
fabricated in a manner to provide not less than 6 mm 1/4 inch keying
between wire and paper backing and keying shall be obtained by a uniform
series of slots in a perforated face paper woven between the wires.
2.8
WATER
Water shall be clean, fresh, potable, and free from amounts of oils, acids,
alkalis and organic matter that would be injurious to the stucco.
SECTION 09225
Page 7
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