specs

Section 05510
Page 3
H. Dimensions and thicknesses of framing, supports landings, treads and risers, balustrades and railings are
minimums. Do not decrease. Increase as necessary to support design loads.
I. Fabricate work complete with components required for anchoring and supporting.
J. Stringers shall be structural steel shapes with 3/8 in. steel end plates on exposed ends of walls strings and outer
strings as indicated.
K. Weld stair stringers to structural steel landing trimmer.
L. Interior Stairs:
1. Form treads and risers of 12 ga. steel to profiles indicated to receive concrete tread fill.
2. Construct intermediate landings of galvanized steel deck as specified to receive concrete fill.
3. Fabricate wall rails with malleable steel brackets of design similar to that indicated, spaced as shown.
(Refer to Section 05500 - Miscellaneous Metals.)
M. Exterior Stairs:
1. Treads and landings to be 1 ½” Grip Strut grating.
2. Fabricate wall rails with malleable steel brackets of design similar to that indicated, spaced as shown.
(Refer to Section 05500 - Miscellaneous Metals.)
3.02 INSTALLATION
A. Install metal expansion shields and fastenings, anchors and supports in stair well walls as required to stabilize the
stairs and landings under stipulated loading conditions and to the satisfaction of the Authorities. Secure bottom
riser to concrete slab mechanically.
B. Provide temporary supports and bracing required to position stairs.
C. Do drilling, cutting and fitting necessary to attach this work to adjoining work and make it complete.
D. Make joints tight, smooth and leave completed work straight, true, clean and smooth.
E. Where fastenings or anchors have to be built in by other trades supply necessary templates, instruction and
supervision to ensure satisfactory installation.
F. Wood plugs for fixing to walls will not be permitted. Use metal anchoring devices.
G. Clean work thoroughly and brush on prime paint and touch up shop coat where omitted or damaged during
erection. Paint field welds. Work paint well into joints, crevices, interstices and open spaces.
3.03 FINISHING
A. Prime Painting:
1. Thoroughly clean ferrous metals, by methods suitable to remove burrs, weld spatter, rust, loose mill scale,
oil, grease, dirt and other foreign matter.
2. Shop apply one coat of prime paint to surfaces except those requiring field welding. Brush on thoroughly
and work well into crevices and interstices.
3. After erection and installation, clean the work and apply field touch-up of same formulas as shop coat to
damaged or unpainted surfaces. Work paint well into joints, crevices, interstices and open spaces.
END OF SECTION
NAPA CENTURY CENTER XD 12
#165582