1.4.2
Structural Members and Connections
Structural steel members and their connections shall be designed in
accordance with AISC 316 or AISC 350. Structural cold-formed steel framing
members and their connections shall be designed in accordance with TI 809-07.
Aluminum structural members and their connections shall be designed in
accordance with AA ADM1. Framed openings shall be designed to structurally
replace the covering and framing displaced.
1.4.3
Roofing and Siding Design
Steel or aluminum roofing and siding shall be designed in accordance with
MBMA MBSM.
1.4.4
Gutters And Downspouts
Gutters and downspouts shall be designed according to the requirements of
SMACNA Arch. Manual for storms which should be exceeded only once in 5
years, with adequate provision for thermal expansion and contraction.
1.4.5
Louvers
Louvers shall be [fixed-blade] [adjustable] type designed for a minimum net
open area of [_____] square meters, square feet, to be rainproof, and to
resist vibration when air is passed at the rate of [_____] cubic meters per
second.cubic feet per minute.
1.4.6
Ventilators
1.4.6.1
Circular Ventilators
Circular roof ventilators shall be gravity [directional] [stationary]
[revolving] type, [with] [without] dampers, designed for a minimum capacity
of [_____] cubic meters of air per second cubic feet of air per minute for
each ventilator, based on a wind velocity of 8 km per hour 5 miles per hour
and an exterior-interior temperature differential of 6 degrees C 10 degrees
F and without screens in place.
1.4.6.2
Continuous Ventilators
Continuous roof ventilators shall be ridge mounted gravity type, [with]
[without] dampers, designed for a minimum capacity of [_____] cubic meters
of air per second cubic feet of air per minute for each 3 m 10 foot section
based on a wind velocity of 8 km per hour 5 miles per hour and an
exterior-interior temperature differential of 6 degrees C 10 degrees F and
without screens in place.
1.4.7
Grounding and Lightning Protection
Grounding and lightning protection shall be provided as specified in
Section 13100A LIGHTNING PROTECTION SYSTEM.
1.5
DESIGN ANALYSIS
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NOTE: Metal Building System manufacturers do not
design foundations; foundation investigation and
design may be performed by the Contractor. The
project design structural engineer must design and
SECTION 13121
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