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1.1 |
SCOPE |
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1.1.1 |
These specifications define the materials, products, design criteria, and fabrication
of the metal building system required to withstand the forces imposed by snow,
wind, seismic activity, structural movement including thermal
expansion and contraction as well as in-service use conditions imposed upon the building structure. |
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1.1.2 |
These specifications are an outline of material as well as performance requirements to insure that the architect, engineer, builder and owner understands the basis for design, manufacture, and application of the metal building system. |
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1.2 |
BUILDING DESCRIPTION |
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1.2.1 |
Rigid Frame Clear Span:
Rigid frame clear span is a solid web continuous frame design with either tapered or uniform depth (straight) columns. |
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1.2.2 |
Rigid Frame Multi-Span:
Rigid frame multi-span is solid web continuous frame design with either tapered or straight columns including one, two, or more interior columns. |
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1.2.3 |
Single Slope:
Single slope is a solid web continuous frame design with the roof sloping from side to side in lieu of ridge to side.
Single slope buildings are designed with tapered or straight columns and can be either clear span or multi-span. |
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1.2.4 |
Lean-To: Lean-to
is a solid web simple frame design with tapered or straight
columns with a roof slope
from side to side (single
slope). This frame design requires a bolted connection to
an adjacent freestanding structure. |
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1.2.5 |
Sidewall Girts:
Sidewall girts are typically
designed to by-pass the column, however, a flush, in the column
line
girt system is readily available upon request. |
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1.2.6 |
Endwall Girts: Endwall girts are typically designed to be in a flush condition
with the column, however, a by-pass the column line girt system is also readily available upon request. |
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1.3 |
BUILDING NOMENCLATURE |
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1.3.1 |
Building “WIDTH” is
measured from outside to outside of sidewall girts. |
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1.3.2 |
Building “LENGTH” is
measured from outside to outside of endwall girts. |
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1.3.3 |
Building “EAVE HEIGHT” is
measured from the bottom of the base plate on the main frame
columns to the top of the eave strut. |
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1.3.4 |
Building “ROOF SLOPE” is
expressed as inches of rise for 12 inches of horizontal run. |
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1.3.5
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Building “BAY SPACING” is
defined as the dimension between frame centerlines. End bays
are measured from the outside of the endwall girt to the
centerline of the first interior frame. |
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1.4 |
QUALITY ASSURANCE |
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1.4.1 |
1 The metal building manufacturer shall
be a certified member of the (AISC) American Institute of Steel
Construction, Metal Building Manufacturers Association (MBMA),
and Systems Builders Association (SBA). |
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1.4.2 |
Approved
Building System Manufacturers: A & S Building Systems |
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1.4.3 |
All
Building system manufacturer’s
drawings and design analysis shall bear the respective seal
of a registered professional engineer. |
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1.4.4 |
Qualifications of welders: Welders shall
be qualified in accordance with AWS D1.1. |
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1.4.5 |
Qualifications of erectors: The erector
shall be routinely engaged in similar size projects as well
as complexity for a minimum of five years. The erector shall
be familiar and experienced with the building system manufacturer. |
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2.1 |
GENERAL |
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2.1.1 |
The
building manufacturer shall use standards, specifications,
recommendations, findings
and/or interpretations
of professionally recognized groups such as AISC, AISI, AAMA,
AWS, ASTM, MBMA, Federal Specifications, and published research
by MBMA as the basis for establishing design, drafting, fabrication,
and quality criteria, practices, and tolerances. For convenience,
one or more source may be referenced in a particular portion
of these specifications. In all instances, however, the manufacturer’s
design, drafting, fabrication and quality criteria, practices,
and tolerances shall govern, unless specifically countermanded
by the contract documents. |
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2.1.2 |
Structural
mill sections or welded up plate sections shall be designed
in accordance
with AISC’s “Specification
for the Design, Fabrication, and Erection of Structural Steel
for Buildings.” |
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2.1.3 |
Cold-formed
steel structural members shall be designed in accordance
with AISI’s “Specification
for the Design of Cold-formed Steel Structural Members.” |
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2.2 |
DESIGN LOADS |
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2.2.1 |
Design
loads shall be as specified and set forth in the contract,
as shall be applied
in accordance
with the manufacturer’s standard design practices.
Design loads shall include roof live load, applicable snow
loads,
wind loads, seismic loads, and collateral loads. It also
includes any auxiliary equipment loads, and/or specific loads. |
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2.2.2 |
Dead Load: The actual weight of the building
system that is determined by the manufacturer. |
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2.2.3 |
Roof Live Load: The load produced by maintenance
activities, rain, erection activities, and other movable or
moving loads, but not including wind, snow, seismic, crane,
or dead loads. |
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2.2.4 |
Roof Snow Load: The gravity load induced
by the weight of snow or ice on the roof, assumed to act on
the horizontal projection of the roof. |
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2.2.5 |
Wind Load: The load on a structure induced
by the forces of wind blowing from any horizontal direction. |
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2.2.6 |
Collateral Load: The weight of any non-moving
equipment or material, such as ceilings, electrical or mechanical
equipment, sprinkler systems, or plumbing. |
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2.2.7 |
Auxiliary Load: The dynamic load induced
by cranes, conveyors, or other material handling systems. |
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2.2.8 |
Seismic Load: The horizontal load acting
in any direction on a structural system due to action of an
earthquake. |
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2.2.9 |
Floor (mezzanine) Live
Load: The load induced on a floor system by occupants of a
building, furniture,
equipment, walls, stored materials, etc. |
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3.1 |
PRIMARY FRAMING STEEL |
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3.1.1 |
Steel for hot-rolled shapes shall conform
to the requirements of ASTM Specifications A36, with a minimum
yield of 36, 42, or 50 ksi. |
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3.1.2 |
Plate steel for built-up sections shall
conform to the physical requirements of ASTM A570, ASTM 572
or ASTM A36 as applicable, with minimum yield of 42,000, 50,000,
or 55,000 psi as indicated by the design requirements. |
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3.1.3 |
Steel for endwall “C” sections
shall conform to the physical requirements of ASTM A607 Grade
55 and have a minimum yield of 55,000 psi. |
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3.2 |
SECONDARY FRAMING STEEL |
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3.2.1 |
Steel used to fabricate (form)
purlins, girts, eave struts, and “C” sections
shall conform to the physical requirements of ASTM A607 Grade
55 and have
a minimum yield of 55,000 psi. |
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3.3 |
ROOF PANEL AND WALL PANEL MATERIAL |
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3.3.1 |
Panel material as specified shall be 26
gauge steel-coated both sides with a layer of aluminum-zinc
alloy (approximately 55% aluminum, 45% zinc) applied by a continuous
hot-dip method. Triple spot minimum 0.55 ounce per square foot
as determined by the Triple Spot Test per ASTM Specifications
A792. |
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3.3.2 |
Panel material as specified shall be 24
gauge steel-coated both sides with a layer of aluminum-zinc
alloy (approximately 55% aluminum, 45% zinc) applied by a continuous
hot-dip method. Triple spot minimum 0.55 ounce per square foot
as determined by the Triple Spot Test per ASTM Specification
A792. |
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4.1 |
GENERAL |
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4.1.1 |
All framing members shall be manufactured
and fabricated for field bolted assembly. All connection plates
including all purlin and girt clips are to be factory welded. |
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4.1.2 |
All shop connections shall
be in accordance with the manufacturer’s standard design
practices. |
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4.1.3 |
All framing members shall bear an easily
identifiable piece mark. |
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4.2 |
PRIMARY STRUCTURAL FRAMING |
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4.2.1 |
Interior Frames: All primary
frames shall be factory welded, built-up “I” sections.
The columns and rafters may be either tapered or uniform
depth. Flanges
shall be connected to webs by means of a continuous fillet
weld on either one side or both sides, depending upon design
requirements. |
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4.2.2 |
Endwall Frames: All endwall
roof beams and endwall columns shall be factory welded, built-up “I” sections,
hot-rolled structural “I” sections, or cold-formed “C” sections
depending on design requirements. |
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4.2.3 |
Plates, Stiffeners, etc: All base plates,
splice plates, end plates, clips, and stiffeners shall be factory
welded into place on the structural members. |
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4.2.4 |
Bolt Holes: All base plates, splice plates,
and clips shall be factory fabricated to include all bolt connections.
Any field cutting of frames is prohibited. |
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4.2.5 |
Secondary connections: All connections
for secondary structural including purling, girts, and eave
struts shall be by means of factory welded, four bolt pattern
clips. Clips shall be factory welded to primary structural. |
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4.3 |
SECONDARY FRAMING |
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4.3.1 |
Purlins and Girts: Roof purlins
and wall girts shall be cold-formed, 8”, 10”, or 12” deep “Z” sections
with stiffened flanges. Depth of “Z” sections shall
be determined by engineering criteria. All purlins and girts
shall be factory pre-punched to accommodate field bolting to
the primary frames. Connection bolts will install through the
web of the “Z”, not through the flanges. |
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4.3.2 |
Eave Struts: All eave struts
shall be unequal flange cold-formed “C” sections. |
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4.3.3 |
Base Angle: The base member will provide
a structural attachment point for the bottom of the wall panels
while providing a finished, trimmed appearance from the outside.
This member shall be secured to the concrete slab with ram-sets,
expansion bolts, or equivalent anchors |
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4.4 |
BRACING |
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4.4.1 |
Diagonal Bracing: Diagonal bracing in
the roof and walls shall be used to transfer longitudinal loads
(wind, cranes, etc.) from the structure into the foundation.
This bracing is to be designed and furnished to length and
equipped with bevel washers and nuts. The bracing shall consist
of rods threaded at each end or galvanized cables with threaded
end anchors. If design requirements so dictate, diagonal bracing
may consist of structural angle or pipe bolted in place. |
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4.4.2 |
Diaphragm Bracing: Diaphragm bracing is
utilized when the strength of the roof and wall panels attached
to the structure is sufficient to resist the applied wind forces. |
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4.4.3 |
Portal Frame Bracing: If diaphragm bracing
does not apply and diagonal bracing is not permitted in all
walls, portal frame bracing may be designed. |
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4.4.4
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Fixed Base Bracing: If diaphragm bracing
does not apply and diagonal bracing is not permitted in all
walls, fixed base bracing may be designed.
NOTE: Design criteria determines whether portal frame bracing
or fixed base bracing will be designed
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4.4.5 |
Flange Braces: The compression flange
of all primary framing shall be braced laterally with angles
connecting to the webs of purlins or girts so that the flange
compressive stress is within allowable limits for any combination
of loading |
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5.1 |
GENERAL |
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5.1.1 |
Wall panels shall be PBR,
Vistashadow™,
ShadowRib™, or NuWall™ as specified. |
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5.1.2 |
Roof Panels shall be PBR,
Double-Lok® Machine
Seam Standing Seam, Ultra-Dek® Snap Seam Standing Seam,
SuperLok™ Standing Seam, or BattenLok® Standing Seam
Roof System. |
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5.1.3 |
PBR roof and wall panels
as specified shall be either 26 gauge steel, coated both
sides with an aluminum-zinc
alloy or 26 gauge steel, coated with Signature 200
Series siliconized
polyester finish or 26 gauge steel, coated with Signature
300 Series (70%
fluoropolymer) finish, all with an aluminum-zinc alloy substrate. |
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5.1.4 |
Vistashadow™ wall panels as specified
shall be 26 gauge steel, coated with a Signature 200
Series siliconized
polyester finish or 26 gauge steel, coated with Signature
300 Series (70%
fluoropolymer) finish, all with an aluminum-zinc alloy substrate. |
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5.1.5 |
ShadowRib® wall panels as specified
shall be 24 or 22 gauge steel, available with either a smooth
texture or an embossed texture (reduces oil canning) with either
a Signature 200 Series siliconized polyester
finish or a Signature
300 Series (70% fluoropolymer) finish, all with an
aluminum-zinc alloy substrate. |
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5.1.6 |
NuWall™ wall panels as specified
shall be 26, 24, or 22 gauge steel, available with either a
smooth texture or an embossed texture (reduces oil canning)
with either a Signature 200 Series siliconized
polyester finish or a Signature 300 Series (70%
fluoropolymer) finish, all with an aluminum-zinc alloy substrate. |
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5.1.7 |
Ultra-Dek® and Double-Lok® Standing
Seam Roof System panels as specified shall be either 24 gauge
steel coated with an aluminum-zinc alloy, 24 gauge coated with
Signature 200 Series siliconized polyester
with an aluminum-zinc alloy substrate, or 24 gauge pre-coated
with a Signature
300 Series (70%
fluoropolymer) finish over an aluminum-zinc alloy substrate. |
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5.1.8 |
BattenLok® Standing Seam roof panels
as specified shall be either 24 gauge steel coated with an
aluminum-zinc alloy or 24 gauge pre-coated with a Signature
300 Series (70%
fluoropolymer), finish over an aluminum-zinc alloy substrate. |
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5.1.9 |
SuperLok™ Standing Seam roof panels
as specified shall be either 24 gauge steel coated with an
aluminum-zinc alloy or 24 gauge pre-coated with a Signature
300 Series (70%
fluoropolymer) finish over an aluminum-zinc alloy substrate. |
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5.2 |
PANEL DESCRIPTIONS |
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5.2.1 |
PBR Panel: Panels shall
have four (4) major ribs 1 1/4” high,
spaced 12” on center. Between the major corrugations
are two (2) minor corrugations. All sidelaps shall be composed
of one major rib from each adjacent panel utilizing the
underlying purlin bearing rib for support. Each panel shall
provide
36” net coverage in width. |
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5.2.2 |
Vistashadow Wall Panel:
Panels shall have four (4) major ribs 1 1/8” high,
spaced 12” center. Panel design provides a decorative
smooth shadowline with a semi-concealed fastener appearance.
All sidelaps shall be composed of one major rib from each
adjacent panel. Each wall panel shall provide 36” net
coverage in width. |
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5.2.3 |
“A” Wall Panel:
Panels design provides a decorative smooth shadowline with
a semi-concealed
fastener appearance. All sidelaps
shall
be composed of one major rib from each adjacent panel.
Each wall panel shall provide 36” net coverage
in width. |
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5.2.4 |
ShadowRib Wall Panel:
Panels shall be 3 inches deep with alternating 5 1/4” wide
x 1 1/2” deep fluting ribs. Panel design provides
a decorative, concealed fastener, smooth or embossed panel
surface. All sidelaps shall be composed of 3” deep,
concealed fastener ribs. Each wall panel shall provide
a net coverage of 16”. |
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5.2.5 |
NuWall Wall Panel: Panels
shall be 2 1/2” deep with alternating 1/2” fluting
ribs. Panel design provides a decorative, concealed fastener,
smooth or embossed panel surface. All sidelaps shall be
2 1/2” deep, concealed fastener ribs. Each panel shall
provide a net coverage of 12” |
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5.2.6 |
Double-Lok® Machine
Seam Roofing System: Panels shall UL90 rated, rollformed, 24
gauge (minimum) structural quality aluminum-zinc alloy coated
steel sheet
complying with ASTM A792. All aluminum-zinc alloy steel
sheeting shall have a minimum of class AZ-50 coating on
both sides
and a minimum yield of 50,000 psi. Panels shall have a
new coverage of 24” with a 3” high rib at both
sidelaps. The panels are to be mechanically seamed together
at the
sidelaps utilizing the Pittsburgh Seam. Endlaps shall be
pre-punched for proper placement of fasteners. Panels shall
be attached to the structural system with concealed clips
with factory applied mastic. |
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5.2.6.1
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Low Floating Clips: The clips
shall be 3 3/8” in height providing a 3/8” clearance
for insulation between the panel and the purlin. Floating clips
shall provide a minimum of 2” movement to allow for expansion
and contraction. |
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5.2.6.2 |
High Floating Clips: The
clips shall be 4 3/8” in height providing a 1” thermal spacer
for added insulation at the purlins. Floating clips shall provide
a minimum a 2” movement to allow for expansion and contraction. |
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5.2.7 |
Ultra-Dek® Snap Seam
Roofing System: Panels shall be UL90 rated rollformed, 24
gauge (minimum) structural quality aluminum-zinc alloy coated
steel sheet
complying with ASTM A792. Aluminum-zinc alloy sheet steel
shall have a minimum of class AZ-50 coating on both sides
and a minimum yield stress of 50,000 psi. Panels shall
have a net coverage of 24” and a 3” high rib
at both sidelaps. One side of the panel shall be female
in configuration,
suitable to accept the other male side, and form a locking
assembly. Panel sidelaps shall have factory applied foamable
hot melt mastic sealant. Endlaps shall be pre-punched for
proper placement of fasteners. Panels shall attach to the
structural system with concealed clips that have factory-applied
mastic and be designed so that movement between the panel
and clip does not occur. |
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5.2.7.1 |
Utility Clips: The clips
shall be 3” in
height and used when insulation is not required. |
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5.2.7.2 |
Low Fixed Clips: The clips
shall be 3 3/8” in height providing a 3/8” clearance
for insulation between the panel and the purlin. |
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5.2.7.3 |
High Fixed Clips: The clips
shall be 3 3/8” in height to accommodate a 1” thermal
spacer for added insulation at the purlins. |
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5.2.7.4 |
Low Floating Clips: The clips
shall be 3 3/8” in height. Floating clips shall provide a minimum
of 2” movement for expansion and contraction while allowing
3/8” clearance for insulation between the panel and the
purlins. |
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5.2.7.5 |
High Floating Clips: The
clips shall be 4 3/8” in height. Floating clips shall provide a minimum
of 2” movement for expansion and contraction while allowing
a 1” thermal spacer for added insulation at the purlins. |
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5.2.8 |
BattenLok® Standing
Seam Roofing System: Panels shall be UL90 rated rollformed,
24 gauge (minimum) structural quality aluminum-zinc alloy coated
steel sheet
complying with ASTM A792. The aluminum-zinc alloy sheet
shall have a minimum of class AZ-50 coating on both sides
and a
minimum yield stress for 50,000 psi. Panels shall have
a net coverage of 16” and a 2” high rib at
both sidelaps. The panels are joined at the edges with
a mechanically
locked standing seam. Panel sidelaps shall have a factory-applied
mastic and be designed so that movements between the panel
and clip does not occur. |
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5.2.8.1 |
Utility Clips: The clips
be 2” in
height and used when insulation is not required. |
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5.2.8.2 |
Low Fixed Clips: The clips
shall be 2 3/8” in height providing a 3/8” clearance
for insulation between the panel and the purlin. |
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5.2.8.3 |
High Fixed Clips: The clips
shall be 3 3/8” in
height to accommodate a 1” thermal spacer for added insulation
to the purlins. |
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5.2.8.4 |
Low Floating Clips: The clips
shall be 2 3/8” in
height. Floating clips shall provide a minimum of 1 5/8” movement
for expansion and contraction. |
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5.2.8.5 |
High Floating Clips: The
clips shall be 3 3/8” in
height. Floating clips shall provide a minimum of 1 5/8” movement
for expansion and contraction. |
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5.2.9 |
SuperLok Standing Seam
Roofing System: Panels shall be UL90 rated rollformed, 24
or 22 gauge structural quality aluminum-zinc alloy coated
steel
complying with ASTM A792. The aluminum-zinc steel shall
have a minimum of class AZ-50 coating on both sides and a
minimum
yield stress for 50,000 psi. Panels shall have a net coverage
of either 12 or 16 inches and a 2” high rib at both
sidelaps. Panels sidelaps shall have a factory-applied
hot melt mastic
and are designed for electrically powered mechanical attachment
to the structure utilizing concealed clips.
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5.2.9.1 |
Utility Clips: The clips
shall be 2” in
height and used when insulation is not required. |
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5.2.9.2 |
Low Fixed Clips: The clips
shall be 2 3/8” in
height, providing a 3/8” clearance for insulation between
the panel to the purlins. |
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5.2.9.3 |
High Fixed Clips: The clips
shall be 3 3/8” in
height to accommodate a 1” thermal spacer for added insulation
to the purlins. |
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5.2.9.4 |
Low Floating Clips: The clips
shall be 2 3/8” in
height. Floating clips shall provide a minimum of 1 5/8” movement
for thermal expansion and contraction as well as 3/8” clearance
for insulation between the panel and purlin. |
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5.2.9.5 |
High Floating Clips: The
clips shall be 3 3/8” in
height. Floating clips shall provide a minimum of 1 5/8” movement
for thermal expansion and contraction as well as the height
to accommodate a 1” thermal spacer for added insulation
to the purlins. |
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6.1 |
BOLTS |
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6.1.1 |
Structural Bolts: All bolts used in primary
frame splices, endwall framing connections, connections of
secondary framing to primary framing, and secondary framing
to secondary framing shall be zinc plated ASTM A307 or ASTM
A325 as required by design. |
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6.2 |
FASTENERS |
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6.2.1 |
Roof and wall panel fasteners vary depending
upon required finishes and required insulation thickness. Listed
below are available fastener specifications and recommended
sized for differing insulations. |
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6.2.1.1 |
Self-drilling structural
screws shall be carbon steel No. 12-14 x 1 1/4” Hex Head, cadmium
or zinc plated. The fastener shall be assembled with EPDM washer
to insure a waterproof seal. Hex head of fastener shall be
coated with OxySeal II™ for long life corrosion protection
and then color coated if required. These fasteners are applicable
for use with fiberglass blanket insulation from 0” to
4” thick. |
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6.2.1.2 |
Self-drilling structural
screws shall be carbon steel No. 12-14 x 1 1/4” Indented Hex Head
cast from Zamak-5, and alloy of zinc, aluminum and manganese
that completely encapsulates the head of the self-drilling
insert. Fastener shall be assembled with EPDM washer to insure
a waterproof seal. The ULTIMATE™ fastener is available
color coated and non-color coated. These fasteners are applicable
for use with fiberglass blanket insulation for 0” to
4” thick. |
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6.2.1.3 |
Self-drilling structural
screws shall be 410 corrosion resistant stainless steel No.
12-14 x 1 1/4” Hex
Head with the EPDM washer. Color coated and non-color coated
heads are available. The fasteners are applicable for use with
insulation from 0” to 4” thick. |
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6.2.1.4 |
Self-drilling sidelap, panel
to panel screws shall be No. 14 x 7/8” with EPDM washer.
This fastener is used regardless of panel type. The finish
on this
fastener will be provided to match the self-drilling structural
screws specified. |
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6.2.1.5 |
Self-drilling structural
screws when used on the walls with 6” fiberglass blanket insulation
shall be No.12-14 x 1 7/8” Stand-off Traxx/3. These fasteners
are available with both the OxySeal II and the ULTIMATE finishes. |
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6.3 |
GUTTER, DOWNSPOUTS, AND RELATED FLASHING |
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6.3.1 |
Eave Line Gutters: The gutters shall be
24 gauge AZ50 aluminum-zinc coated steel substrate with a pre-painted
finish. |
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6.3.2 |
Downspouts: Downspouts shall be 26 gauge
aluminum-zinc alloy coated steel pre-painted, rectangular in
shape. |
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6.3.3 |
Flashings: The flashings
shall be a minimum of 26 gauge AZ50 aluminum-zinc alloy coated
steel pre-painted
finish per customer’s request. |
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6.4 |
CLOSURES AND SEALANTS |
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6.4.1 |
Closure Strips: The corrugations
of the roof and wall panels shall be filled with solid or closed
cell,
non-shrinking, performed, neoprene or polyethylene closures
at the eave, ridge and rake when required for Weathertightness. |
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6.4.2 |
Metal Closures: The corrugations and pan
area of both Ultra-Dek and Double-Lok Roofing Systems and the
BattenLok Standing Seam Roofing System shall be filled with
formed metal closures. The outside closures shall be formed
from 24 gauge steel. The inside closures shall be formed from
18 gauge steel. The closure exterior shall be aluminum-zinc
alloy or pre-painted AZ50 aluminum-zinc alloy coated steel. |
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6.4.3 |
Sealants: Vistasheen II roof
panels shall be sealed as indicated on A&S Erection Drawings with 3/32” x
3/8” wide tape sealer. This material shall be butyl base
elastic compound with a minimum solid content of 99%, Schnee-Morehead
No. 5225 or equal. The sealer shall be non-staining, non-corrosive,
non-shrinking, non-oxidizing, non-toxic and non-volatile. The
service temperature shall be from –60° F to 300° F. |
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6.4.4 |
Sealants: Ultra-Dek, Double-Lok,
and BattenLok systems endlap, ridge, gable and eave sealers
are butyl-based
pressure sensitive 7/8” x 3/16” tape mastic, non-staining,
non-corrosive, non-volatile and non-toxic. The tape is 100
polyisobutylene-isoprene meeting the performance requirements
of Federal Specification TT-C-1796A, Type II, Class B. Service
temperature is from –60° F to +275° F. |
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6.4.5 |
Caulk: All gutter and downspout joints,
rake flashing laps, ridge flashing laps, doors, window, and
louvers shall be sealed with white or burnished slate pigmented
polyurethane caulk. It shall meet or exceed the requirement
of Federal Specification TT-S-00230C, Type II, Class A. |
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7.1
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STRUCTURAL PAINTING |
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7.1.1 |
All uncoated structural steel
shall be cleaned of all foreign matter and loose scale in
accordance
with SSPC-c and given a one mil coat of A&S Building System’s
red oxide primer. Primer shall meet or exceed Federal Specification
SSPC 15-68T (replaced Federal Specification TT-P-636D). This
coating is not intended or represented as a finish coat. |
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7.1.2 |
All secondary structural framing shall
be pre-painted coil stock. The coil stock shall be completely
cleaned and treated with an iron phosphate process before the
coil is coated with red oxide polyester paint. With a minimum
dry film thickness of 0.5 mil, this coating process meets or
exceeds the performance requirements of Federal Specification
SSPC 15-68T. This coating is not intended or represented as
a finish coat. |
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7.2 |
Signature 200 Series PANEL
FINISH |
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7.2.1 |
Base metal shall be 26 or 24 gauge AZ50
aluminum-zinc alloy coated steel. |
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7.2.2 |
Prime Cost: The base metal shall be pretreated
and primed with an epoxy type primer for superior adhesion
and superior resistance to corrosion. The dry film thickness
shall be 0.2 to 0.3 mils. |
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7.2.3 |
Exterior Coat: The exterior
side of roof and wall panel material shall be given a Signature
200 Series coating
(siliconized polyester compound), heat treated to a 470° F
providing a controlled dry film thickness of 0.7 to 0.9 mils.
The Signature 200 Series paint provides a superior appearance as well
as superior weatherability. |
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7.3 |
Signature 300 Series PANEL
FINISH |
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7.3.1 |
Base metal shall be 26 or 24 gauge AZ50
aluminum-zinc alloy coated steel. |
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7.3.2 |
Prime Coat: The base metal shall be pre-treated
and primed with an epoxy type primer for superior adhesion
and superior resistance to corrosion. The film thickness shall
be 0.2 to 0.3 mils minimum. |
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7.3.3 |
Exterior Coat: The exterior side of the
panel material shall be given a finish coat of 70% minimum
Signature 300 Series. The dry film thickness
of the top coat shall be 0.7 to 0.9 mils with a total dry film
thickness of 0.9 to 1.1
mils. The Signature 300 Series paint system
offers superior weatherability and superior resistance to coating/color
deterioration. |
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7.4 |
FILM PROPERTIES TEST METHODS AND DESCRIPTION
(click to view detailed table) |
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8.1 |
PERSONNEL DOORS |
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8.1.1 |
Standard personnel doors
shall be 3’–0” x
7’–0” x 1 3/4” manufactured from 20
gauge zinc-coated steel. All doors shall be treated with metal
prep zinc-chromate wash primer to produce a long lasting surface.
Door surfaces shall have a leather grain texture and painted
either white or bronze. Doors shall have a pre-foamed polystyrene
slab of 1.0# test density filling inside the door. |
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8.1.1.1 |
Reversible doors shall have 20 gauge
galvanized face sheets with top and bottom channels closed
flush. The lock edge reinforcement shall be 16 gauge. Each
hinge reinforcement shall be 9 gauge steel minimum projection
welded in six locations. |
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8.1.1.2 |
Doors shall be beveled 1/8” in
2” on lock edge for neat fit and security with 1/8” clearance
at head, 3/32” clearance at jambs. 1/4” clearance
at meeting edges of pairs and 3/4” floor clearance. |
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8.1.1.3 |
All doors shall have field installed
weather-stripping. |
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8.1.2 |
Standard door frames shall be 16 gauge
zinc-coated steel, factory pre-painted either white or bronze.
All reinforcements, clips and anchors shall be welded to the
frame pieced at the factory. |
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8.1.2.1 |
Door frames
shall be provided with 1-1/2 pair of 4 1/2” x 4 1/2” hinges
and reversible strike plates. |
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8.1.3 |
Standard lever locksets shall comply with
ANSI Series 4000 Gr 2, F81 / F82. Standard mortise locksets
shall comply with ANSI A115.1 1976 Series 1000. |
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8.2 |
WINDOWS |
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8.2.1 |
Standard windows shall be
horizontal slide windows, available with either polished
aluminum or bronze finish. Standard
sizes include 3’–0” x 3’–0” and
6’–0” x 3’–0”. Glazing
shall be 7/16” hermetically sealed insulated glass. Windows
shall be furnished complete with hardware and half screen.
Windows shall be self-flashing to all A&S available panels.
All windows shall be certified by Architectural Aluminum Manufacturers
Association for performance requirements of ANSI / AAMA 101-85. |
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8.2.2 |
Standard Narrow Lite Accent
windows shall be fabricated from 6063 alloy, T5 temper
hardness. Window sizes shall include
2’ 0” x 7’–0” and 1’–0” x
7’–0”. All accent windows shall be furnished
with 1/8” tempered glass of 7/16” insulated bronze
glass. Outside trim fins are finished with all units. |
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8.3 |
GRAVITY RIDGE VENTILATORS |
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8.3.1 |
Gravity
ridge ventilators shall be manufactured from zinc-aluminum
coated steel and
painted white. The ventilator
shall be 26 gauge and the skirt shall match the roof slope.
Ventilators shall be equipped with standard birdscreens
and riveted end caps. Ventilators shall be 10’ long and have
a 9’ throat. Chain operated dampers are available
upon request. Twelve inch throat ventilators are available
upon
request. |
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8.4 |
SKYLIGHTS |
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8.4.1 |
UL90
Roof skylight panels shall be translucent corrugated woven
roving/chopped fiberglass
reinforced panels.
Skylight panels shall be manufactured in the same configuration
as the metal roof panels. Each shall carry the “Do Not
Step” warning label. Standard skylights shall have a
burning rate of 2” per minute or less when tested in
accordance with UL R3870A. Insulated skylights are available
in either the Vistasheen roof panel or all three available
standing seam roof systems offered by A&S Building Systems. |
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8.5 |
LOUVERS |
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8.5.1 |
Louver frames shall be
18-gauge zinc-aluminum alloy steel available in any standard
A&S color. Louver
blades are to be 20 gauge available in any standard A&S
color. Standard louvers shall be self-framing and self-flashing
except when used in walls with liner panels. Louvers shall
be equipped with adjustable or fixed blades as specified. Available
sizes range between 2’–0” x 2’–0” and
5’–0” x 4’–0”.
NOTE: Louvers installed in walls with liner panels require structural
framed openings. |
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9.1 |
The erection of
the metal building and the installation of accessories shall
be performed in accordance with A&S Building System’s
erection drawings. Erection practices shall conform to Section
6, Common Industry Practices found in the “Low Rise Building
Systems Manual,” MBMA 1986. There shall be no field modifications
to any structural member except as authorized and specified
by A&S Building Systems. |
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10.1 |
The
building anchor bolts shall be designed to resist the maximum
column reactions resulting from the specified combinations
of loading. The building manufacturer shall specify the
bolt diameter and placement. Anchor bolts will be supplied
by
the contractor and NOT A&S Building Systems. The foundation
shall be adequately designed by a qualified foundation engineer
to support the building
reactions and other loads that may be imposed by the building
use. The design shall be based on the specific soil conditions
of the site. A&S Building
Systems assumes NO responsibility for the integrity of
the foundation. |
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11.1 |
A&S
Building Systems offers a variety of warranties for panel
coatings, purchased accessories,
manufactured products, and roof system Weathertightness.
To obtain warranty information, samples, and pricing, contact
us at (800)274-2100.
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