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07712cda.txt
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SECTION 07712
MANUFACTURED COPPER ROOF SPECIALTIES
NOTE ** This section includes premanufactured copper
roofing accessories such as curbset wall flashing,
expansion joints, gutters, and downspouts.
NOTE **
NOTE ** Information in this section is provided by the
Copper Development Association (CDA), the central
authoritative source of technical data on the
design specification and installation of
architectural copper products. With capabilities
for providing seminars, technical publications,
design assistance and review, CDA can be an
invaluable resource to the architect specifying any
architectural copper products or applications.
NOTE **
NOTE ** For additional information about copper roofing
specialties, contact CDA at:
NOTE ** 260 Madison Avenue
NOTE ** New York, New York 10016
NOTE ** Telephone: 212-251-7200; FAX: 212-251-7234.
NOTE **
NOTE ** SECTION 07712 - MANUFACTURED COPPER ROOF
SPECIALTIES, Copyright 1996, The Architect's
Catalog, Inc.
PART 1 GENERAL
1.1 SECTION INCLUDES
NOTE ** Delete items listed below that are not applicable
to the project. Add other items or edit
descriptions as necessary.
A. Factory manufactured curbset wall flashing and expansion
joints.
B. Factory manufactured gutters and downspouts (rain
drainage).
C. Factory manufactured miscellaneous sheet copper trim and
accessories.
1.2 RELATED SECTIONS
NOTE ** Edit list below as necessary to conform to project
requirements.
A. Section 04810 - Unit Masonry Assemblies: Integral
masonry flashings.
B. Section 06100 - Rough Carpentry: Treated wood sills for
fastening copper roof accessories.
C. Section _____ - ___________________: Roofing flashing
and trim installed integral with roofing membrane.
D. Section 07612 - Sheet Copper Roofing.
E. Section 07622 - Copper Flashing and Trim: Shop and field
formed copper roofing accessories and trim.
F. Section 07900 - Joint Sealers.
G. Section _____ - ___________________: Mechanical
equipment installed integral with premanufactured copper
roofing accessories.
1.3 REFERENCES
A. ASTM B 32 - Standard Specification for Solder Metal.
B. ASTM B 101 - Standard Specification for Lead-Coated
Copper Sheet and Strip for Building Construction.
C. ASTM B 370 - Standard Specification for Copper Sheet and
Strip for Building Construction.
D. ASTM D 2822 - Standard Specification for Asphalt Roof
Cement.
E. CDA 4115-1929 - Copper in Architecture - Handbook; Copper
Development Association (CDA).
1.4 SUBMITTALS
A. Submit in accordance with Section 01300.
B. Product Data: Manufacturer's technical product data,
installation instructions and general recommendations for
each specified sheet material and fabricated product.
C. Samples: 6 or 12-inch-square samples of specified sheet
materials to be exposed as finished surfaces.
NOTE ** Delete paragraphs above and below if no appearance
control is required.
D. Samples: 6 or 12-inch-long samples of factory-fabricated
products exposed as finished work. Provide complete with
specified factory finish.
NOTE ** Delete paragraph below unless work is especially
complicated and demanding. If paragraph is
retained, edit to add or delete items as
appropriate to project.
E. Shop Drawings: Show layout, profiles, methods of
joining, and anchorage details, including major trim,
gutters, downspouts, and expansion joint systems.
1. Provide layouts at 1/4 inch scale and details at 3
inch scale.
1.5 QUALITY ASSURANCE
A. Installer: A firm with 3 years of successful experience
with installation of copper roofing accessories similar
in type and scope to project requirements.
B. Coordinate work of this section with interfacing and
adjoining work for proper sequencing of each
installation. Ensure best possible weather resistance
and durability of work and protection of materials and
finishes.
NOTE ** Possibly insert here special project warranty
requirements for extensive or elaborate
installations.
PART 2 PRODUCTS
2.1 MATERIALS
A. Copper: ASTM B 370; temper H00 (cold-rolled) except
where temper 060 is required for forming; 16 oz. (0.0216-
inch thick) except as otherwise indicated.
NOTE ** Delete subparagraph below if lead protection of
copper sheet is not required for project.
1. Provide lead coating per ASTM B 101 on exposed copper
surfaces.
NOTE ** Edit materials list below to conform to project
requirements. Add other materials as required.
B. Insulation: Manufacturer's standard rigid or semi-rigid
board of glass fiber of thicknesses indicated.
C. Wood Nailers: Pressure treated softwood lumber as
specified in Section 06100.
D. Solder: Provide 50 - 50 tin/lead solder (ASTM B 32),
with rosin flux.
E. Fasteners: Same metal as flashing/sheet metal or other
non-corrosive metal as recommended by sheet manufacturer.
Match finish of exposed heads with material being
fastened.
F. Bituminous Coating: SSPC - Paint 12, solvent-type
bituminous mastic, nominally free of sulfur, compounded
for 15-mil dry film thickness per coat.
G. Mastic Sealant: Polyisobutylene; nonhardening,
nonskinning, non-drying, nonmigrating sealant.
NOTE ** Possibly insert in paragraph below specific product
type or brand name.
H. Elastomeric Sealant: Generic type recommended by
manufacturer of copper and fabricator of components being
sealed and complying with requirements for joint sealants
as specified in Section 07900 - Joint Sealers.
I. Epoxy Seam Sealer: 2-part noncorrosive metal seam
cementing compound, recommended by copper manufacturer
for nonmoving joints including riveted joints.
J. Sheet Copper Accessories: Sheet copper clips, straps,
anchoring devices, and similar accessory units as
required for installation of work, matching or compatible
with material being installed, noncorrosive, size and
gauge as required for proper performance.
K. Gutter and Conductor-Head Guards: 20-gauge bronze mesh
or fabricated units, with selvaged edges and noncorrosive
fasteners. Select materials for compatibility with
gutters and downspouts.
L. Roofing Cement: ASTM D 2822, asphaltic.
2.2 FABRICATED UNITS
A. Metal Fabrication: Provide materials of standard factory
fabrication to greatest extent possible. Comply with
details shown and with applicable requirements of CDA
"Copper in Architecture Handbook" and other recognized
industry practices. Fabricate for waterproof and weather-
resistant performance, with expansion provisions for
running work, sufficient to permanently prevent leakage,
damage, or deterioration of the work. Form work to fit
substrates. Comply with material manufacturer
instructions and recommendations for forming material.
Form exposed sheet copper work without excessive oil-
canning, buckling, and tool marks, true to line and
levels indicated, with exposed edges folded back to form
hems.
B. Seams: Fabricate nonmoving seams in sheet copper with
flat-lock seams. Tin edges to be seamed, form seams, and
solder. Rivet joints for additional strength where
required.
C. Expansion Provisions: Where lapped or bayonet-type
expansion provisions in work cannot be used or would not
be sufficiently water/weatherproof, form expansion joints
of intermeshing hooked flanges, not less than 1 inch
deep, filled with mastic sealant (concealed within
joints).
D. Sealant Joints: Where movable, nonexpansion type joints
are indicated or required for proper performance of work,
form copper to provide for proper installation of
elastomeric sealant, in compliance with CDA standard
details.
NOTE ** Insert specific listing below of separations known
to be required for work as detailed.
E. Separations: Provide for separation of metal from
noncompatible metal or corrosive substrates by coating
concealed surfaces at locations of contact with
bituminous coating or other permanent separation as
recommended by manufacturer/fabricator.
2.3 ELASTIC EXPANSION JOINTS
A. General: Provide factory-fabricated units of size and
profile indicated, complete with prefabricated corner
units, intersection units and splicing materials.
Provide complete with elastic sheet flashing forming the
primary joint membrane in a supported "bellows"
arrangement designed for securement to both sides of
expansion joints. Underside of bellows insulated with
adhesive applied, flexible, closed-cell rubber or plastic
not less than 3/8-inch thick.
B. Type: Plain sheet or encapsulated copper flanged edges,
for embedment in other construction or nailing to
substrates, 4 inches minimum flange width.
NOTE ** Normally delete paragraph above or below.
C. Type: Copper flanged edges, 3 to 4 inches wide, formed
to profiles as indicated to fit curbs and designed for
nailing to curb substrate. Provide 16 oz. copper
flanges.
D. Looped Bellows Width: 5 to 6 inches, exclusive of
flanges.
NOTE ** Delete paragraph below for generic specification.
If paragraph is retained, edit following list of
products as required.
E. Manufacturers: Provide products that comply with project
requirements and are made by one of the following:
1. Afco Products, Inc.
2. Celotex Corporation
3. International Permalite/Roofing Components Group.
4. Manville/Roofing Systems Division.
5. Phoenix Building Products, Inc.
6. York Manufacturing, Inc.
PART 3 EXECUTION
3.1 INSTALLATION
A. General: Except as otherwise indicated, comply with
manufacturer's installation instructions and
recommendations and with CDA "Copper in Architecture
Handbook."
1. Anchor units of work securely in place by methods
indicated, providing for thermal expansion of copper
units; conceal fasteners where possible, and set
units true to line and level as indicated.
2. Install work with laps, joints and seams that will be
permanently watertight and weatherproof.
B. Underlayment: Where units are to be installed directly
on cementitious or wood substrates, install a slip sheet
of red rosin paper on a course of asphalt saturated felt.
C. Bed flanges of work in a thick coat of bituminous roofing
cement where required for waterproof performance.
D. Nail flanges of expansion joint units to curb nailers, at
maximum spacing of 6" o.c. Fabricate seams at joints
between units with minimum 3" overlap, to form a
continuous, waterproof system.
NOTE ** Delete paragraph above or below.
E. Anchor expansion joint units in manner indicated,
complying with manufacturer's instructions. Provide not
less than four-inch embedment or elastic sheets in
bituminous membranes, with hot bitumen or with roofing
cement. Cover with composition stripping as specified
for membrane work.
F. Install continuous gutter guards on gutters, arranged as
hinged units to swing open for cleaning gutters. Install
"beehive"-type strainer-guard at conductor heads,
removable for cleaning downspouts.
NOTE ** Insert other specific installation requirements for
other systems and sheet copper accessory items or
finish systems added to this section.
3.2 CLEANING AND PROTECTION
A. Clean exposed copper surfaces, removing substances that
might cause corrosion of copper or deterioration of
finishes.
B. Protection: Advise Contractor of required procedures for
surveillance and protection of flashings and sheet copper
work during construction to ensure that work will be
without damage or deterioration other than natural
weathering at time of Substantial Completion.
END OF SECTION