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- SECTION 07622
-
- COPPER FLASHING AND TRIM
- NOTE ** This section includes copper roofing accessories
- and trim formed from copper sheet or lead-covered
- copper sheet. Examples of systems covered by this
- section include built-in valleys, scuppers, 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 flashing
- and trim, 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 07622 - COPPER FLASHING AND TRIM, Copyright
- 1996, The Architect's Catalog, Inc.
-
-
- PART 1 GENERAL
-
- 1.1 SECTION INCLUDES
-
- A. Shop and field formed copper roofing accessories and
- trim, including:
- NOTE ** Delete items listed below that are not applicable
- to the project. Add other items or edit
- descriptions as necessary.
- 1. Counterflashing and base flashing.
- 2. Wall flashing and expansion joints.
- 3. Built-in valleys, gutters, and scuppers.
- 4. Gutters and downspouts (rain drainage).
- 5. Exposed trim/fascia units.
- 6. Miscellaneous accessories.
- 7. Laminated flashing.
-
- 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 05810 - Expansion Joint Cover Assemblies: Copper
- expansion joints.
-
- C. Section 07612 - Sheet Copper Roofing.
-
- D. Section 07712 - Copper Roof Accessories: Roof accessory
- units of premanufactured, set-on type.
-
- E. Section 07900 - Joint Sealers.
-
- 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: Submit 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 on sheet materials. Delete
- paragraph below if visual control of trim units,
- gutters, downspouts, expansion joint units, and
- similar items is unnecessary.
-
- D. Samples: 6 or 12-inch-long samples of factory-fabricated
- products exposed as finished work, including specified
- factory finish.
- NOTE ** Delete entire paragraph below if none of the work
- is complicated enough to justify shop drawings. If
- paragraph is retained, edit to add or delete items
- as appropriate to project.
-
- E. Shop Drawings: Submit layout, profiles, methods of
- joining, and anchorage details, including major
- counterflashings, trim/fascia units, gutters, downspouts,
- scuppers, and expansion joint systems. 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 flashing and trim 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 FLASHING AND TRIM 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 in accordance with ASTM B 101 on
- exposed copper surfaces.
-
- 2.2 LAMINATED COMPOSITION SHEET FLASHING
-
- A. Copper/Paper Flashing: 3-oz. copper sheet laminated
- between 2 sheets of bituminous impregnated creped Kraft
- paper or saturated fabric.
- NOTE ** Delete paragraph below for generic specification.
- If paragraph is retained, edit following list of
- products as required.
-
- B. Provide one of the following products:
- 1. Afco Products, Inc.; "Cop-A-Bond Duplex."
- 2. Phoenix Building Products, Inc.; "Duplex Cop-R
- Flash."
- 3. York Manufacturing, Inc.; "Cop-R-Tex Duplex."
-
- C. Miscellaneous Materials and Accessories:
- 1. Solder: Provide 50 - 50 tin/lead solder (ASTM B 32),
- with rosin flux.
- 2. 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.
- 3. Bituminous Coating: SSPC - Paint 12, solvent-type
- bituminous mastic, nominally free of sulfur,
- compounded for 15-mil dry film thickness per coat.
- 4. Mastic Sealant: Polyisobutylene; nonhardening,
- nonskinning, non-drying, nonmigrating sealant.
- NOTE ** Possibly insert in paragraph below specific product
- type or brand name.
- 5. Elastomeric Sealant: Generic type recommended by
- manufacturer of metal and fabricator of components
- being sealed and complying with requirements for
- joint sealants as specified in Section 07900 - Joint
- Sealers.
- 6. Epoxy Seam Sealer: 2-part noncorrosive metal seam
- cementing compound, recommended by metal manufacturer
- for exterior/interior nonmoving joints including
- riveted joints.
- 7. Adhesives: Type recommended by flashing sheet
- manufacturer for waterproof/weather-resistant seaming
- and adhesive application of flashing sheet.
- 8. Roofing felt: asphalt or coal tar saturated felt
- weighing not less than 30 lbs per 100 square feet.
- 9. Paper Slip Sheet: 4 to 6-lb. rosin-sized building
- paper.
- 10. Reglets: Units of type and profile indicated,
- compatible with copper, noncorrosive.
- 11. Metal Accessories: Provide clips, straps, anchoring
- devices, and similar accessory units as required for
- installation of work, noncorrosive, size and gauge
- required for performance.
- 12. Gutter and Conductor-Head Guards: 20-gage bronze
- mesh or fabricated units, with selvaged edges and
- noncorrosive fasteners.
- 13. Roofing Cement: ASTM D 2822, asphaltic.
- NOTE ** Add other materials as required by project.
-
- 2.3 FABRICATED UNITS
-
- A. Metal Fabrication: Shop-fabricate work 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
- 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 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 metal to provide for proper installation of
- elastomeric sealant, in compliance with CDA standards.
- NOTE ** Insert specific listing in paragraph below of
- separations known to be required for work as
- detailed. Try to avoid this need by careful
- detailing.
-
- 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.
- NOTE ** Revise provisions of the article below as dictated
- by project requirements. Other proprietary systems
- that include substantial curb constructions as part
- of the unit should be specified as part of roofing
- accessories elsewhere in Division 7.
- NOTE **
-
- 2.4 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
- adhesively applied, flexible, closed-cell rubber or
- plastic not less than 3/8-inch thick.
-
- B. Type: Encapsulated copper flanged edges, for embedment
- in other construction or nailing to substrates, 4-inches
- maximum 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. metal 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 that 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 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 installation is to be 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. Install reglets to receive counterflashing in manner and
- by methods indicated. Where shown in concrete, furnish
- reglets to trades of concrete work for installation.
- Where shown in masonry, furnish reglets to trades of
- masonry work for installation.
-
- E. Install counterflashing in reglets, either by snap-in
- seal arrangement or by soldering in place for anchorage
- and filling reglet with mastic or elastomeric sealant, as
- indicated and depending on degree of sealant exposure.
-
- F. Install elastic flashing in accordance with
- manufacturer's recommendations. Where required, provide
- for movement at joints by forming loops or bellows in
- width of flashing. Locate cover or filler strips at
- joints to facilitate complete drainage of water from
- flashing. Seam adjacent flashing sheets with adhesive,
- seal and anchor edges in accordance with manufacturer's
- recommendations.
-
- G. Nail flanges of expansion joint units to curb nailers, at
- maximum spacing of 6 inches o.c. Fabricate seams at
- joints between units with minimum 3-inch overlap, to form
- a continuous, waterproof system.
-
- H. 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 metal accessory items
- included in Part 2.
-
- 3.2 CLEANING AND PROTECTION
-
- A. Clean exposed copper surfaces, removing substances that
- might cause discoloration of metal.
-
- B. Protection: Advise Contractor of required procedures for
- surveillance and protection of flashings and sheet metal
- 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
-