National Association (SMACNA).
Coordinate specifications with the drawings so that
drawing details and SMACNA Arch. Manual requirements
do not conflict or repeat. Delete references to
SMACNA Arch. Manual when requirements are detailed
in the drawings.
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NOTE: On the drawings, show:
1.
Base, counter open valley, and eave flashing
2.
Roof drain flashing
3. Expansion joints - (The drawings should contain
interior and exterior details of building expansion
joints at walls, ceiling, floors, roof, and
parapets. Provide isometric detailing for expansion
joint intersections.)
4.
Sheet metal roofing; extent and slope.
5. Gutters and downspouts.
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PART 1
GENERAL
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NOTE:
Sheet metal color will be long lasting such as
anodized aluminum, or baked enamel, and will not be
painted in the field. This does not preclude the
use of natural materials like copper or aluminum
when that is the choice of the designer. Avoid use
of copper where drainage from the copper will pass
over exposed masonry, stonework, or other metal
surfaces.
Galvanized steel will not be permitted as an option
to other metals specified. Galvanized steel may be
specified for temporary structures or where it may
be satisfactory due to climatic conditions. Where
galvanized steel is specified, changes will be made
to the text as follows:
Paragraph REFERENCES:
ASTM A 526 (1990) Steel Sheet, Zinc-Coated
(Galvanized) by the Hot-Dip Process,
Commercial Quality
Paragraph MATERIALS Add:
Galvanized Steel:
ASTM A
526, Coating G90.
Paragraph PROTECTION OF ALUMINUM: Require
galvanized steel to be treated the same as aluminum,
i.e., separated from copper or protected.
SECTION 07600
Page 5
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