2.1.2
Sheet Steel
ASTM A 569/A 569M.
2.1.3
Zinc-Coated Sheet Steel
ASTM A 653/A 653M.
2.1.4
Zinc Coating
ASTM A 123/A 123M.
2.1.5
Corrosion Resisting Sheet Steel
ASTM A 167.
2.1.6
Screws and Bolts
ANSI B18.6.3 or ANSI B18.6.4 as applicable.
2.2
FABRICATION OF WINDOWS
Form permanent joints by welding or mechanically fastening as specified for
each type window. Use joints of strength to maintain structural value of
members connected. Weld joints solid, remove excess metal, and dress
smooth on exposed and contact surfaces. Closely fit joints formed with
mechanical fastenings and make permanently watertight. Assemble frames and
sash, including ventilators, at the plant and ship as a unit with hardware
unattached. Provide the following construction:
a.
Where fixed window sections adjoin ventilator sections, provide
fixed sash, fabricated from similar frame members, and of
manufacturer's standard type suitable for the purpose.
b.
Roll weathering surfaces integrally to provide two-point
parallel-surface contact with overlap at both inside and outside
points of closure.
c.
Provide drips and weep holes as required to return water to
outside.
d.
Design glazed windows and rabbets suitable for glass thickness
shown on drawings [or specified].
e.
Use flathead, cross recessed type, exposed head screws and bolts
with standard threads on windows, trim and accessories. Screw
heads shall finish flush with adjoining surfaces. Self tapping
sheet-metal screws are not acceptable.
f.
For hot-dipped galvanized windows, use stainless steel or hot-spun
galvanized steel fasteners. For windows with painted finish use
cadmium plated or electro-galvanized fasteners. Finish exposed
heads to match finish of windows.
2.3
FIRE RATED WINDOWS
**************************************************************************
NOTE: Windows requiring an Underwriters
Laboratories fire rating shall be steel. Aluminum
SECTION 08510
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