specs

Section 05510
Page 2
3. If recycled content product is part of an assembly, indicate the percentage of recycled content product in the
assembly by weight.
G. Local/Regional Materials:
1. Sourcing location(s): Indicate location of extraction, harvesting, and recovery; indicate distance between
extraction, harvesting, and recovery and the project site.
2. Manufacturing location(s): Indicate location of manufacturing facility; indicate distance between
manufacturing facility and the project site.
3. Product Value: Indicate dollar value of product containing local/regional materials; include materials cost
only.
4. Product Component(s) Value: Where product components are sourced or manufactured in separate
locations, provide location information for each component. Indicate the percentage by weight of each
component per unit of product.
1.05 QUALITY ASSURANCE
A. Use only workmen skilled in this section of the Work. Do Work to best standard practices and in accordance
with laws, by-laws and regulations that govern. Conform to the requirements of the authorities.
PART 2 - PRODUCTS
2.01 MATERIALS
A. Structural Steel: ASTM A36/A36mand A588/588m, Grade 46.
B. Welding materials: AWS Code A5.1, Series E60 or E70 as required.
C. Metal Pans: Hot-rolled steel, ASTM A653/A653m.
D. Sheet steel: Cold-rolled steel ASTM A1008/1008m
E. Primer paint: Zinc Chromate iron oxide.
F. Handrail Bracket: malleable iron bracket with screw fastenings.
G. Steel Deck Landings: Conform to ASTM A-653/A653m; deck to be galvanized.
H. Metal Stair Treads and Plank Grating: Grip Strut grating
I. Provide material with maximum amount of recycled content available that achieves performance requirements of
this Section,
J. Provide material with maximum amount of regional (within 500 miles) material feasible that achieves
performance requirements of this Section.
PART 3 - EXECUTION
3.01 FABRICATION
A. Design, fabrication and erection of stairs shall conform to the applicable portions of NAAMM standards for
"Conventional Type Steel Stairs", local building codes and state laws.
B. Where possible fit and shop assemble sections of the work and deliver to site in largest practicable sections.
Execute work according to details and approved shop drawings. Where shop fabrication is not possible, make
the trial assemblies in shop. Take field dimensions and fabricate and install to suit field conditions and field
openings. Comply with structural steel tolerances, ASTM A36/A36m.
C. Welding: AWS Code A5.1, Series E60-E70 as required. File or grind exposed welds smooth and flush, so as to
be invisible after painting. Leave ready for prime painting and field touch-up.
D. Make workmanship of best grade of modern shop and field practice known to recognized manufacturers
specializing in this work. Fit joints and intersection members accurately. Make work in true planes with
adequate fastening. Build and erect work plumb, true, square, straight, level and accurate to sizes and shapes
detailed, free from distortion or defects detrimental to appearance or performance.
E. Insulate metals where necessary to prevent corrosion due to contact between dissimilar metals and between
metals and masonry or concrete. Use bituminous paint, butyl tape, building paper or other approved means.
F. Supply fastenings, anchors and accessories required for fabrication and erection of this section of the Work.
Make exposed metal fastenings and accessories of same materials, texture, color and finish as base metal on
which they occur unless otherwise shown or specified. Utilize concealed fasteners where shown on the
drawings. Keep exposed fastenings to an absolute minimum and inconspicuous, spacing them evenly and setting
them out neatly. Make fastenings of permanent type.
G. Draw mechanical joints to hairline tightness and seal countersunk screws and access holes for locking screws
with metal filler where these occur on exposed surfaces.
NAPA CENTURY CENTER XD 12
#165582