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- SECTION 07650
-
- FLEXIBLE FLASHING
- NOTE ** Polytite Manufacturing Corporation laminated copper
- through-wall flashings.
- NOTE **
- NOTE ** This section is based on products made by Polytite
- Manufacturing Corporation, which is located at:
- NOTE ** 324 Rindge Avenue
- NOTE ** Cambridge, MA 02140
- NOTE ** Tel: (617) 864-0930
- NOTE ** Tel: (800) 776-0930
- NOTE ** Fax: (617) 864-9006
- NOTE **
- NOTE ** Polytite makes several types of laminated copper
- flashing intended for use as masonry through-wall
- flashing and for other concealed locations.
- NOTE **
- NOTE ** SECTION 07650 - FLEXIBLE FLASHING, Copyright 1997,
- The Architect's Catalog, Inc.
-
- PART 1 GENERAL
-
- 1.1 SECTION INCLUDES
- NOTE ** Delete items below not required for project.
-
- A. Laminated metal flashings and counterflashings.
-
- B. Mastic for setting and sealing joints.
-
- C. Accessories.
-
- 1.2 RELATED SECTIONS
- NOTE ** Delete any sections below not relevant to this
- project; add others as required.
-
- A. Section 04810 - Unit Masonry Assemblies.
-
- B. Section 04820 - Reinforced Unit Masonry Assemblies.
-
- C. Section 06100 - Rough Carpentry: Flashings at openings
- and sills.
-
- 1.3 REFERENCES
- NOTE ** Delete references from the list below that are not
- actually required by the text of the edited
- section.
-
- A. SMACNA (ASMM) - Architectural Sheet Metal Manual; Sheet
- Metal and Air Conditioning Contractors' National
- Association.
-
- 1.4 SUBMITTALS
-
- A. Submit under provisions of Section 01300.
-
- B. Product Data: Manufacturer's data sheets showing product
- characteristics and including installation instructions.
-
- C. Samples: Actual pieces of flashings specified, not less
- than 6 inches (150 mm) square.
-
- 1.5 QUALITY ASSURANCE
-
- A. Installation Standard: Comply with recommendations of
- SMACNA Architectural Sheet Metal Manual (ASMM).
-
- B. Installer Qualifications: Company with at least five
- years of successful experience in weathertight
- installation of flashing.
-
- C. Coordination: Interface flashing work with adjacent and
- adjoining work to ensure best possible weather resistance
- and durability of completed flashing.
-
- 1.6 DELIVERY, STORAGE, AND HANDLING
-
- A. Deliver materials to project site in manufacturer's
- sealed packaging, bearing manufacturer's name and product
- identification.
-
- B. Stack flashing materials to avoid twisting, bending, and
- abrasion. Protect materials from weather before
- installation.
-
- C. Store mastic materials in sealed containers under cover.
-
-
- PART 2 PRODUCTS
-
- 2.1 MANUFACTURERS
-
- A. Provide products manufactured by Polytite Manufacturing
- Corporation; 324 Rindge Avenue, Cambridge, MA 02140.
- ASD. Telephone: 617-864-0930 or 800-776-0930. Fax: 617-
- 864-9006.
-
- B. Requests for substitutions will be considered in
- accordance with provisions of Section 01600.
- NOTE ** Delete paragraph above or below; coordinate with
- Division 1 requirements.
-
- C. Substitutions: Not permitted.
-
- 2.2 MATERIALS
-
- A. Copper Fabric Flashing: Laminated sheet comprised of
- copper sheet laminated between two layers of fiberglass
- fabric with a polymer modified asphalt.
- NOTE ** Polytite Copper Fabric Flashing is Polytite's
- highest quality product for through-wall flashing.
- It is comprised of copper sheet that is asphalt
- coated on both sides and bonded under high pressure
- between two layers of high tensile fiberglass
- fabric. It is light and flexible but is rigid
- enough to maintain its shape when formed and
- installed at the project site.
- NOTE **
- NOTE ** Select desired copper weight and delete other
- choices.
- 1. Copper weight: 2 oz/sq ft (610 g/sq m).
- 2. Copper weight: 3 oz/sq ft (915 g/sq m).
- 3. Copper weight: 5 oz/sq ft (1525 g/sq m).
- 4. Copper weight: 7 oz/sq ft (2135 g/sq m).
-
- B. Coated Copper Flashing: Copper sheet coated on both
- sides with a polymer modified asphalt compound weighing
- approximately 6 oz/sq ft (1830 g/sq m).
- NOTE ** Polytite Coated Copper Flashing is an excellent
- quality for through-wall flashing. It is comprised
- of copper sheet that is protected on both sides by
- a self-sealing, polymer modified asphalt coating.
- The copper sheet is shielded from electrolysis and
- from acids and alkalies that may be present in
- uncured mortar. In case of puncture, the asphalt
- coating is self-sealing. The manufacturing process
- results in a high quality product that is
- moderately priced.
- NOTE **
- NOTE ** Select desired copper weight and delete other
- choices.
- 1. Copper weight: 2 oz/sq ft (610 g/sq m).
- 2. Copper weight: 3 oz/sq ft (915 g/sq m).
- 3. Copper weight: 5 oz/sq ft (1525 g/sq m).
- 4. Copper weight: 7 oz/sq ft (2135 g/sq m).
-
- C. Copper Kraft Duplex Flashing: Copper sheet bonded on
- both sides by asphalt to heavy creped Kraft paper.
- NOTE ** Polytite Copper Kraft Duplex Flashing is a low
- cost, high quality material that is especially
- useful as a vapor barrier for slabs on grade. It
- is made by laminating copper sheet under high
- pressure with two layers of asphalt saturated
- creped Kraft paper. The heavy concentration of
- asphalt in the layers of paper, in addition to the
- asphalt bond between the copper and paper layers,
- assures efficient waterproofing.
- NOTE **
- NOTE ** Select desired copper weight and delete other
- choices.
- 1. Copper weight: 1 oz/sq ft (305 g/sq m).
- 2. Copper weight: 2 oz/sq ft (610 g/sq m).
- 3. Copper weight: 3 oz/sq ft (915 g/sq m).
- 4. Copper weight: 5 oz/sq ft (1525 g/sq m).
-
- D. Copper Kraft Flashing: Copper sheet bonded on one side
- to heavy asphalt saturated creped Kraft paper.
- NOTE ** Polytite Copper Kraft Flashing is an excellent
- quality material for curtain walls and
- dampproofing. Copper sheet is protected on one
- side with a sheet of heavy creped Kraft paper that
- is asphalt bonded to the copper. It is an
- economical solution that provides permanent
- waterproofing and is ideal for curtain walls and
- frame construction.
- NOTE **
- NOTE ** Select desired copper weight and delete other
- choices.
- 1. Copper weight: 1 oz/sq ft (305 g/sq m).
- 2. Copper weight: 2 oz/sq ft (610 g/sq m).
- 3. Copper weight: 3 oz/sq ft (915 g/sq m).
-
- 2.3 ACCESSORIES
-
- A. Asphalt Trowel Mastic: Cut-back asphalt containing long
- fibered material, in trowel grade consistency.
-
- B. Reglets: Types and profiles as indicated on the drawings
- and as recommended by flashing manufacturer.
-
- 2.4 FABRICATION
-
- A. Forming: Fabricate flashings true to shape and accurate
- in dimension. Form pieces in longest possible lengths to
- minimize joints. Fold flashing at corners and at ends of
- pans instead of cutting.
-
- B. Joints: Provide not less than 4 inches (100 mm) of
- overlap at flashing joints.
-
-
- PART 3 EXECUTION
-
- 3.1 EXAMINATION
-
- A. Verify that surfaces to receive flashing are thoroughly
- dry, free from loose materials, and reasonably smooth,
- with no sharp edges or projections.
-
- B. Verify that locations to receive flashing are sloped so
- water that enters will drain to building exterior.
-
- 3.2 INSTALLATION
- NOTE ** Edit the paragraphs below to conform to project
- requirements. Most paragraphs pertain to through-
- wall flashing in masonry. If other applications
- are required, add or modify paragraphs as required.
-
- A. General: Comply with recommendations of SMACNA ASMM.
- 1. Lap joints minimum of 4 inches (100 mm) and seal
- watertight with mastic.
- 2. Carry flashing vertically as detailed, but not less
- than 6 inches (150 mm) above horizontal plane.
- 3. Extend head and sill flashings not less than 6 inches
- (150 mm) beyond edges of openings and turn up to form
- watertight pan; seal with mastic.
-
- B. Masonry Flashing: Comply with requirements of Section
- 04810.
- NOTE ** Delete paragraph above or below.
-
- C. Masonry Flashing: Lay horizontal flashing in slurry of
- fresh mortar and top with fresh full bed of mortar to
- receive masonry units. At vertical surfaces, spot
- flashing with mastic to hold in place until masonry has
- set.
- 1. Carry flashing through wall and leave exposed for
- inspection.
- 2. After inspection, cut flashing flush with surface of
- masonry.
-
- D. Flashing in Frame Construction: Comply with requirements
- of Section 06100.
- NOTE ** Delete paragraph above or below.
-
- E. Flashing in Frame Construction: Install over solid
- backing, both vertically and horizontally. Secure in
- place with mastic; avoid puncturing installed flashing
- with nails or other fasteners.
-
- 3.3 ADJUSTING
-
- A. Remove mortar or other obstructions from weep holes at
- flashing locations.
-
-
- END OF SECTION
-