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D.
Pre-installation Conference:
- Prior to installation of roofing system, conduct a
pre-installation conference at the project site.
- Attendance: Owner, Architect, Contractor, Project Superintendent, and Roof Applicator
- Agenda:
a. Roofing details and agenda
b. Critical work sequencing and review of phasing plan
c. Inspection sequencing
1.03 SYSTEM PERFORMANCE REQUIREMENTS
A.
Performance Testing:
1. Metal roof system
must be tested in accordance with Underwriters Laboratories, Inc. (UL) Test Method 580
"Tests for Uplift Resistance of
Roof Assemblies".
2. Metal roof system must be installed in accordance with UL Construction
method [# choose one:
180B (min.
14 gauge purlin, 5’-0" on center max. with 29 gauge "D" panel and low/high fixed/floating/articulating
clips. Rigid insulation to be min. 1" thick) or
205 (min. 16 gauge purlin,
5’-0" on center max. with low/high fixed/floating clips) or
205A (min. 16 gauge purlin,
5’-0" on center max. with articulating clips, with Light Transmitting Panels) or
286 (mi 5/8" plywood
deck with fixed/articulating clips
at 5’-0" on center max.) or
308B (min. 14 gauge purlin,
5’-0" on center max., min.
1" thick rigid insulation and 22 gauge 1 1/2" deep
metal deck with fixed, floating or articulating
clips at 5-0" on center
max.) or
534 (min. 16 gauge purlin,
5'-0 1/4" on center max. with low/high floating/articulating clips with Light
Transmitting Panels) or
535 (min.
16 gauge purlin, 5'-0 1/4" on center max. with low/high fixed/floating clips without Light
Transmitting Panels) or
536 (min.
1" thick rigid insulation and min. 22 gauge Type A, B, F or N metal deck with low/high
floating/articulating clips at 5-0"
on center max.) or
537 (min. 16 gauge purlin,
5'-0 1/4" on center max., min. 1" thick rigid insulation and 29 gauge 9/16"
deep metal deck with floating
clips at 5'-0 1/4" on center max.) or
541 (mm. 5/8" plywood
deck with low/high floating/articulating
clips at 5’-0" on center max.)]. See the current UL Roofing Materials and Systems
Directory for requirements of each Construction
Method.
3. Resist the roof design pressures calculated in accordance with [#
choose one: SBBCI, UBC, BOCA, ASCE or an applicable national or local building
code]. Determine panel bending and clip-to-panel
strength by testing in accordance with
ASTM E 1592- 95. Capacity for gauge, span or loading other than
those tested may be determined by interpolating
test results.
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4. Metal roof system must
meet the air infiltration requirements
of ASTM E 1680-95 when tested with a 6.24 PSF pressure differential with resulting air infiltration
of 0.0071 cfm/sq ft.
5. Metal roof system must
meet the water penetration requirements
of ASTM E 1646-95 when tested with a 12.00 PSF pressure differential with no uncontrollable
water leakage when five gallons per hour
of water is sprayed per square foot of roof area.
6. Metal roof system must
qualify for a Class 4 rating when
tested in accordance with Underwriters Laboratories, Inc. UL-221 8 "Test Standard For Impact
Resistance."
# Specifier: Select
construction method for paragraph Al. and applicable building code for paragraph A.2.
1.04 DESIGN REQUIREMENTS
A. Root
Design Loads:
1. Design criteria shall
be in accordance with [# choose
one: MBMA, SBBCI, UBC, BOCA, ASCE or an applicable national or local building code.]
2. Dead Loads
a. The dead load shall be the
weight of the SSSMR system.
Collateral loads, such as sprinklers, mechanical and electrical systems, and ceilings shall not
be attached to the panels.
3. Live Loads
a. The panels and concealed
anchor clips shall be capable of supporting a minimum uniform live
load of -20 psf.
4. Roof Snow Loads
a. The design roof snow loads
shall be as shown on the
contract drawings.
5. Wind Loads
a. The design wind uplift for
the roof system shall be as
shown on the contract drawings. The design uplift force for each connection assembly shall be that pressure given for the area under
consideration, multiplied by the
tributary load area of the
connection assembly. The safety factor listed below shall be applied to
the design force and compared
against the ultimate capacity. Prying shall be considered when
calculating fastener design
loads.
aa. Single fastener in each
connection-3.0
bb. Two or more fasteners in each connection-2.25
6. Thermal Loads
a. Roof panels shall be
free to move in response to the
expansion and contraction forces resulting from a total temperature range of __ degrees F during the life of the structure. [#Choose
temperature differential based on Max. and Min. for specific area lAW
MBMA Climatological Data] |