MISSING_SECTIONS.docx

SECTION 07 53 23 - ETHYLENE-PROPYLENE-DIENE-MONOMER (EPDM) ROOFING

1. GENERAL

0. RELATED DOCUMENTS

0. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section.

0. SUMMARY

1. Section Includes:

0. Adhered ethylene-propylene-diene-monomer (EPDM) roofing system.

0. DEFINITIONS

2. Roofing Terminology: Definitions in ASTM D 1079 and glossary of NRCA's "The NRCA Roofing and Waterproofing Manual" apply to work of this Section.

0. PREINSTALLATION MEETINGS

3. Preinstallation Roofing Conference: Conduct conference at Project site.

0. Meet with Owner, Government, Owner's insurer if applicable, testing and inspecting agency representative, roofing Installer, roofing system manufacturer's representative, deck Installer, and installers whose work interfaces with or affects roofing, including installers of roof accessories and roof-mounted equipment.

0. Review methods and procedures related to roofing installation, including manufacturer's written instructions.

0. Review and finalize construction schedule, and verify availability of materials, Installer's personnel, equipment, and facilities needed to make progress and avoid delays.

0. Examine deck substrate conditions and finishes for compliance with requirements, including flatness and fastening.

0. Review structural loading limitations of roof deck during and after roofing.

0. Review base flashings, special roofing details, roof drainage, roof penetrations, equipment curbs, and condition of other construction that affects roofing system.

0. Review governing regulations and requirements for insurance and certificates if applicable.

0. Review temporary protection requirements for roofing system during and after installation.

0. Review roof observation and repair procedures after roofing installation.

0. ACTION SUBMITTALS

4. Product Data: For each type of product.

4. Shop Drawings: For roofing system. Include plans, elevations, sections, details, and attachments to other work, including:

1. Base flashings and membrane terminations.

1. Roof plan showing orientation of steel roof deck and orientation of roofing and fastening spacings and patterns for mechanically fastened roofing.

0. INFORMATIONAL SUBMITTALS

5. Qualification Data: For Installer and manufacturer.

5. Product Test Reports: For components of roofing system, tests performed by manufacturer and witnessed by a qualified testing agency.

5. Research/Evaluation Reports: For components of roofing system, from ICC-ES.

0. CLOSEOUT SUBMITTALS

6. Maintenance Data: For roofing system to include in maintenance manuals.

0. DELIVERY, STORAGE, AND HANDLING

7. Deliver roofing materials to Project site in original containers with seals unbroken and labeled with manufacturer's name, product brand name and type, date of manufacture, approval or listing agency markings, and directions for storing and mixing with other components.

7. Store liquid materials in their original undamaged containers in a clean, dry, protected location and within the temperature range required by roofing system manufacturer. Protect stored liquid material from direct sunlight.

1. Discard and legally dispose of liquid material that cannot be applied within its stated shelf life.

7. Handle and store roofing materials, and place equipment in a manner to avoid permanent deflection of deck.

0. FIELD CONDITIONS

8. Weather Limitations: Proceed with installation only when existing and forecasted weather conditions permit roofing system to be installed according to manufacturer's written instructions and warranty requirements.

0. WARRANTY

9. Special Warranty: Manufacturer agrees to repair or replace components of roofing system that fail in materials or workmanship within specified warranty period.

0. Special warranty includes membrane roofing, base flashings, roof insulation, roofing accessories, and other components of roofing system.

0. Warranty Period: 10 years from date of Substantial Completion.

1. PRODUCTS

0. MANUFACTURERS

0. Source Limitations: Obtain components including roof insulation for roofing system from same manufacturer as membrane roofing or manufacturer approved by membrane roofing manufacturer.

0. PERFORMANCE REQUIREMENTS

1. General Performance: Installed roofing and base flashings shall withstand specified uplift pressures, thermally induced movement, and exposure to weather without failure due to defective manufacture, fabrication, installation, or other defects in construction. Roofing and base flashings shall remain watertight.

0. Accelerated Weathering: Roofing system shall withstand 2000 hours of exposure when tested according to ASTM G 152, ASTM G 154, or ASTM G 155.

0. Impact Resistance: Roofing system shall resist impact damage when tested according to ASTM D 3746 or ASTM D 4272.

1. Material Compatibility: Roofing materials shall be compatible with one another and adjacent materials under conditions of service and application required, as demonstrated by roofing manufacturer based on testing and field experience.

1. Roofing System Design: Tested by a qualified testing agency to resist the following uplift pressures:

2. Corner Uplift Pressure: 15 lbf/sq. ft. (kPa/sq. m).

2. Perimeter Uplift Pressure: 12 lbf/sq. ft. (kPa/sq. m).

2. Field-of-Roof Uplift Pressure: 10 lbf/sq. ft. (kPa/sq. m).

1. Exterior Fire-Test Exposure: ASTM E 108 or UL 790, Class B; for application and roof slopes indicated; testing by a qualified testing agency. Identify products with appropriate markings of applicable testing agency.

0. EPDM ROOFING

2. EPDM: ASTM D 4637, Type I, nonreinforced, uniform, flexible EPDM sheet.

0. Manufacturers: Subject to compliance with requirements, provide products by one of the following:

0. Carlisle SynTec Incorporated.

0. Firestone Building Products.

0. Johns Manville.

0. Thickness: 60 mils (1.5 mm) , nominal.

0. Exposed Face Color: Black.

0. AUXILIARY ROOFING MATERIALS

3. General: Auxiliary materials recommended by roofing system manufacturer for intended use and compatible with roofing.

3. Sheet Flashing: 60-mil- (1.5-mm-) thick EPDM, partially cured or cured, according to application.

3. Bonding Adhesive: Manufacturer's standard.

3. Seaming Material: Single-component, butyl splicing adhesive and splice cleaner Manufacturer's standard, synthetic-rubber polymer primer and 3-inch- (75-mm-) wide minimum, butyl splice tape with release film.

3. Lap Sealant: Manufacturer's standard, single-component sealant.

3. Water Cutoff Mastic: Manufacturer's standard butyl mastic sealant.

3. Metal Termination Bars: Manufacturer's standard, predrilled stainless-steel or aluminum bars, approximately 1 by 1/8 inch (25 by 3 mm) thick; with anchors.

3. Miscellaneous Accessories: Provide pourable sealers, preformed cone and vent sheet flashings, molded pipe boot flashings, preformed inside and outside corner sheet flashings, reinforced EPDM securement strips, T-joint covers, in-seam sealants, termination reglets, cover strips, and other accessories.

1. EXECUTION

0. PREPARATION

0. Clean substrate of dust, debris, moisture, and other substances detrimental to roofing installation according to roofing system manufacturer's written instructions. Remove sharp projections.

0. ROOFING INSTALLATION, GENERAL

1. Install roofing system according to roofing system manufacturer's written instructions.

1. Complete terminations and base flashings and provide temporary seals to prevent water from entering completed sections of roofing system at the end of the workday or when rain is forecast. Remove and discard temporary seals before beginning work on adjoining roofing.

1. Install roofing and auxiliary materials to tie in to existing roofing to maintain weathertightness of transition and to not void warranty for existing roofing system.

0. ADHERED MEMBRANE ROOFING INSTALLATION

2. Adhere roofing over area to receive roofing according to membrane roofing system manufacturer's written instructions. Unroll membrane roofing and allow to relax before installing.

2. Accurately align roofing, and maintain uniform side and end laps of minimum dimensions required by manufacturer. Stagger end laps.

2. Bonding Adhesive: Apply to substrate and underside of roofing at rate required by manufacturer, and allow to partially dry before installing roofing. Do not apply to splice area of roofing.

2. In addition to adhering, mechanically fasten roofing securely at terminations, penetrations, and perimeters.

2. Apply roofing with side laps shingled with slope of roof deck where possible.

2. Adhesive Seam Installation: Clean both faces of splice areas, apply splicing cement, and firmly roll side and end laps of overlapping roofing according to manufacturer's written instructions to ensure a watertight seam installation. Apply lap sealant and seal exposed edges of roofing terminations.

5. Apply a continuous bead of in-seam sealant before closing splice if required by roofing system manufacturer.

2. Tape Seam Installation: Clean and prime both faces of splice areas, apply splice tape, and firmly roll side and end laps of overlapping roofing according to manufacturer's written instructions to ensure a watertight seam installation. Apply lap sealant and seal exposed edges of roofing terminations.

2. Repair tears, voids, and lapped seams in roofing that do not comply with requirements.

2. Spread sealant or mastic bed over deck-drain flange at roof drains, and securely seal membrane roofing in place with clamping ring.

0. BASE FLASHING INSTALLATION

3. Install sheet flashings and preformed flashing accessories, and adhere to substrates according to roofing system manufacturer's written instructions.

3. Apply bonding adhesive to substrate and underside of sheet flashing at required rate, and allow to partially dry. Do not apply to seam area of flashing.

3. Flash penetrations and field-formed inside and outside corners with cured or uncured sheet flashing.

3. Clean splice areas, apply splicing cement, and firmly roll side and end laps of overlapping sheets to ensure a watertight seam installation. Apply lap sealant and seal exposed edges of sheet flashing terminations.

3. Terminate and seal top of sheet flashings and mechanically anchor to substrate through termination bars.

0. WALKWAY INSTALLATION

4. Flexible Walkways: Install walkway products in locations indicated. Adhere walkway products to substrate with compatible adhesive according to roofing system manufacturer's written instructions.

0. PROTECTING AND CLEANING

5. Protect membrane roofing system from damage and wear during remainder of construction period. When remaining construction does not affect or endanger roofing, inspect roofing for deterioration and damage, describing its nature and extent in a written report, with copies to Government and Owner.

5. Correct deficiencies in or remove membrane roofing system that does not comply with requirements, repair substrates, and repair or reinstall membrane roofing system to a condition free of damage and deterioration at time of Substantial Completion and according to warranty requirements.

5. Clean overspray and spillage from adjacent construction using cleaning agents and procedures recommended by manufacturer of affected construction.

END OF SECTION 07 53 23

SECTION 07 62 00 - SHEET METAL FLASHING AND TRIM

0. RELATED DOCUMENTS

0. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section.

0. SUMMARY

1. Section Includes:

0. Formed roof-drainage sheet metal fabrications.

0. Formed low-slope roof sheet metal fabrications.

0. COORDINATION

2. Coordinate sheet metal flashing and trim layout and seams with sizes and locations of penetrations to be flashed, and joints and seams in adjacent materials.

2. Coordinate sheet metal flashing and trim installation with adjoining roofing and wall materials, joints, and seams to provide leakproof, secure, and noncorrosive installation.

0. PREINSTALLATION MEETINGS

3. Preinstallation Conference: Conduct conference at Project site.

0. Review construction schedule. Verify availability of materials, Installer's personnel, equipment, and facilities needed to make progress and avoid delays.

0. Review special roof details, roof drainage, roof-penetration flashing, equipment curbs, and condition of other construction that affect sheet metal flashing and trim.

0. Review requirements for insurance and certificates if applicable.

0. Review sheet metal flashing observation and repair procedures after flashing installation.

0. ACTION SUBMITTALS

4. Product Data: For each type of product.

0. Include construction details, material descriptions, dimensions of individual components and profiles, and finishes for each manufactured product and accessory.

4. Shop Drawings: For sheet metal flashing and trim.

1. Include plans, elevations, sections, and attachment details.

1. Detail fabrication and installation layouts, expansion-joint locations, and keyed details. Distinguish between shop- and field-assembled work.

1. Include identification of material, thickness, weight, and finish for each item and location in Project.

1. Include details for forming, including profiles, shapes, seams, and dimensions.

1. Include details for joining, supporting, and securing, including layout and spacing of fasteners, cleats, clips, and other attachments. Include pattern of seams.

1. Include details of termination points and assemblies.

1. Include details of special conditions.

1. Include details of connections to adjoining work.

1. Detail formed flashing and trim at scale of not less than 1-1/2 inches per 12 inches (1:10).

4. Samples for Verification: For each type of exposed finish.

2. Sheet Metal Flashing: 12 inches (300 mm) long by actual width of unit, including finished seam and in required profile. Include fasteners, cleats, clips, closures, and other attachments.

2. Trim, Metal Closures, Expansion Joints, Joint Intersections, and Miscellaneous Fabrications: 12 inches (300 mm) long and in required profile. Include fasteners and other exposed accessories.

2. Unit-Type Accessories and Miscellaneous Materials: Full-size Sample.

0. INFORMATIONAL SUBMITTALS

5. Qualification Data: For fabricator.

0. CLOSEOUT SUBMITTALS

6. Maintenance Data: For sheet metal flashing and trim, and its accessories, to include in maintenance manuals.

0. QUALITY ASSURANCE

7. Fabricator Qualifications: Employs skilled workers who custom fabricate sheet metal flashing and trim similar to that required for this Project and whose products have a record of successful in-service performance.

0. For copings and roof edge flashings that are SPRI ES-1 tested, shop shall be listed as able to fabricate required details as tested and approved.

0. DELIVERY, STORAGE, AND HANDLING

8. Do not store sheet metal flashing and trim materials in contact with other materials that might cause staining, denting, or other surface damage. Store sheet metal flashing and trim materials away from uncured concrete and masonry.

8. Protect strippable protective covering on sheet metal flashing and trim from exposure to sunlight and high humidity, except to extent necessary for period of sheet metal flashing and trim installation.

0. WARRANTY

9. Special Warranty on Finishes: Manufacturer agrees to repair finish or replace sheet metal flashing and trim that shows evidence of deterioration of factory-applied finishes within specified warranty period.

0. Exposed Panel Finish: Deterioration includes, but is not limited to, the following:

0. Color fading more than 5 Hunter units when tested according to ASTM D 2244.

0. Chalking in excess of a No. 8 rating when tested according to ASTM D 4214.

0. Cracking, checking, peeling, or failure of paint to adhere to bare metal.

0. Finish Warranty Period: 10 years from date of Substantial Completion.

1. PRODUCTS

0. PERFORMANCE REQUIREMENTS

0. General: Sheet metal flashing and trim assemblies shall withstand wind loads, structural movement, thermally induced movement, and exposure to weather without failure due to defective manufacture, fabrication, installation, or other defects in construction. Completed sheet metal flashing and trim shall not rattle, leak, or loosen, and shall remain watertight.

0. Sheet Metal Standard for Flashing and Trim: Comply with SMACNA's "Governmentural Sheet Metal Manual" requirements for dimensions and profiles shown unless more stringent requirements are indicated.

0. SPRI Wind Design Standard: Manufacture and install copings and roof edge flashings tested according to SPRI ES-1 and capable of resisting the following design pressure:

2. Design Pressure: 15 psi.

0. Thermal Movements: Allow for thermal movements from ambient and surface temperature changes to prevent buckling, opening of joints, overstressing of components, failure of joint sealants, failure of connections, and other detrimental effects. Base calculations on surface temperatures of materials due to both solar heat gain and nighttime-sky heat loss.

3. Temperature Change: 120 deg F (67 deg C), ambient; 180 deg F (100 deg C), material surfaces.

0. SHEET METALS

1. General: Protect mechanical and other finishes on exposed surfaces from damage by applying strippable, temporary protective film before shipping.

1. Aluminum Sheet: ASTM B 209 (ASTM B 209M), alloy as standard with manufacturer for finish required, with temper as required to suit forming operations and performance required; with smooth, flat surface.

1. Exposed Coil-Coated Finish:

0. Two-Coat Fluoropolymer: AAMA 2605. Fluoropolymer finish containing not less than 70 percent PVDF resin by weight in color coat. Prepare, pretreat, and apply coating to exposed metal surfaces to comply with coating and resin manufacturers' written instructions.

1. Color: As scheduled on Drawings.

1. Concealed Finish: Pretreat with manufacturer's standard white or light-colored acrylic or polyester backer finish, consisting of prime coat and wash coat with minimum total dry film thickness of 0.5 mil (0.013 mm).

0. MISCELLANEOUS MATERIALS

2. General: Provide materials and types of fasteners, protective coatings, sealants, and other miscellaneous items as required for complete sheet metal flashing and trim installation and as recommended by manufacturer of primary sheet metal or manufactured item unless otherwise indicated.

2. Fasteners: Wood screws, annular threaded nails, self-tapping screws, self-locking rivets and bolts, and other suitable fasteners designed to withstand design loads and recommended by manufacturer of primary sheet metal or manufactured item.

1. General: Blind fasteners or self-drilling screws, gasketed, with hex-washer head.

0. Exposed Fasteners: Heads matching color of sheet metal using factory-applied coating. Provide metal-backed EPDM sealing washers under heads of exposed fasteners bearing on weather side of metal.

0. Blind Fasteners: High-strength aluminum or stainless-steel rivets suitable for metal being fastened.

1. Fasteners for Aluminum Sheet: Aluminum or Series 300 stainless steel.

1. Fasteners for Steel Sheet: Series 300 stainless steel or hot-dip galvanized steel according to ASTM A 153/A 153M or ASTM F 2329.

2. Sealant Tape: Pressure-sensitive, 100 percent solids, polyisobutylene compound sealant tape with release-paper backing. Provide permanently elastic, nonsag, nontoxic, nonstaining tape 1/2 inch (13 mm) wide and 1/8 inch (3 mm) thick.

2. Butyl Sealant: ASTM C 1311, single-component, solvent-release butyl rubber sealant; polyisobutylene plasticized; heavy bodied for hooked-type expansion joints with limited movement.

0. FABRICATION, GENERAL

3. General: Custom fabricate sheet metal flashing and trim to comply with details shown and recommendations in cited sheet metal standard that apply to design, dimensions, geometry, metal thickness, and other characteristics of item required. Fabricate sheet metal flashing and trim in shop to greatest extent possible.

0. Fabricate sheet metal flashing and trim in thickness or weight needed to comply with performance requirements, but not less than that specified for each application and metal.

0. Obtain field measurements for accurate fit before shop fabrication.

0. Form sheet metal flashing and trim to fit substrates without excessive oil canning, buckling, and tool marks; true to line, levels, and slopes; and with exposed edges folded back to form hems.

0. Conceal fasteners and expansion provisions where possible. Do not use exposed fasteners on faces exposed to view.

3. Fabrication Tolerances: Fabricate sheet metal flashing and trim that is capable of installation to a tolerance of 1/4 inch in 20 feet (6 mm in 6 m) on slope and location lines indicated on Drawings and within 1/8-inch (3-mm) offset of adjoining faces and of alignment of matching profiles.

3. Fabrication Tolerances: Fabricate sheet metal flashing and trim that is capable of installation to tolerances specified in MCA's "Guide Specification for Residential Metal Roofing."

3. Expansion Provisions: Form metal for thermal expansion of exposed flashing and trim.

3. Form expansion joints of intermeshing hooked flanges, not less than 1 inch (25 mm) deep, filled with butyl sealant concealed within joints.

3. Use lapped expansion joints only where indicated on Drawings.

3. Sealant Joints: Where movable, nonexpansion-type joints are required, form metal to provide for proper installation of elastomeric sealant according to cited sheet metal standard.

3. Fabricate cleats and attachment devices from same material as accessory being anchored or from compatible, noncorrosive metal.

3. Fabricate cleats and attachment devices of sizes as recommended by cited sheet metal standard for application, but not less than thickness of metal being secured.

3. Seams: Fabricate nonmoving seams with flat-lock seams. Tin edges to be seamed, form seams, and solder.

3. Seams: Fabricate nonmoving seams with flat-lock seams. Form seams and seal with elastomeric sealant unless otherwise recommended by sealant manufacturer for intended use.

3. Seams for Aluminum: Fabricate nonmoving seams with flat-lock seams.

3. Do not use graphite pencils to mark metal surfaces.

0. ROOF-DRAINAGE SHEET METAL FABRICATIONS

4. Downspouts: Fabricate open-face downspouts to dimensions indicated, complete with mitered elbows. Furnish with metal hangers from same material as downspouts and anchors . Shop fabricate elbows.

0. Fabricated Hanger Style: Fig 1-35I according to SMACNA's "Governmentural Sheet Metal Manual."

0. Fabricate from the following materials:

1. Aluminum: 0.024 inch (0.61 mm) thick.

4. Scuppers: Fabricate scuppers to dimensions required, with closure flange trim to exterior, 4-inch- (100-mm-) wide wall flanges to interior, and base extending 4 inches (100 mm) beyond cant or tapered strip into field of roof. Fabricate from the following materials:

1. Aluminum: 0.040 inch (0.81 mm) thick.

4. Conductor Heads: Fabricate conductor heads with flanged back and stiffened top edge and of dimensions and shape required, complete with outlet tubes, exterior flange trim,. Fabricate from the following materials:

2. Aluminum: 0.040 inch (0.81 mm) thick.

0. WALL SHEET METAL FABRICATIONS

5. Opening Flashings in Frame Construction: Fabricate head, sill, and similar flashings to extend to edge of openings. Form head and sill flashing with 2-inch- (50-mm-) high, end dams. Fabricate from the following materials:

0. Aluminum: 0.040 inch (0.81 mm) thick.

1. EXECUTION

0. EXAMINATION

0. Examine substrates, areas, and conditions, with Installer present, for compliance with requirements for installation tolerances, substrate, and other conditions affecting performance of the Work.

0. Verify compliance with requirements for installation tolerances of substrates.

0. Verify that substrate is sound, dry, smooth, clean, sloped for drainage, and securely anchored.

0. Verify that air- or water-resistant barriers have been installed over sheathing or backing substrate to prevent air infiltration or water penetration.

0. Proceed with installation only after unsatisfactory conditions have been corrected.

0. INSTALLATION, GENERAL

1. General: Anchor sheet metal flashing and trim and other components of the Work securely in place, with provisions for thermal and structural movement. Use fasteners, protective coatings, separators, sealants, and other miscellaneous items as required to complete sheet metal flashing and trim system.

0. Install sheet metal flashing and trim true to line, levels, and slopes. Provide uniform, neat seams with minimum exposure of solder, welds, and sealant.

0. Install sheet metal flashing and trim to fit substrates and to result in watertight performance. Verify shapes and dimensions of surfaces to be covered before fabricating sheet metal.

0. Space cleats not more than 12 inches (300 mm) apart. Attach each cleat with at least two fasteners. Bend tabs over fasteners.

0. Install exposed sheet metal flashing and trim with limited oil canning, and free of buckling and tool marks.

0. Torch cutting of sheet metal flashing and trim is not permitted.

0. Do not use graphite pencils to mark metal surfaces.

1. Metal Protection: Where dissimilar metals contact each other, or where metal contacts pressure-treated wood or other corrosive substrates, protect against galvanic action or corrosion by painting contact surfaces with bituminous coating or by other permanent separation as recommended by sheet metal manufacturer or cited sheet metal standard.

1. Coat concealed side of uncoated-aluminum sheet metal flashing and trim with bituminous coating where flashing and trim contact wood, ferrous metal, or cementitious construction.

1. Underlayment: Where installing sheet metal flashing and trim directly on cementitious or wood substrates, install underlayment and cover with slip sheet.

1. Expansion Provisions: Provide for thermal expansion of exposed flashing and trim. Space movement joints at maximum of 10 feet (3 m) with no joints within 24 inches (600 mm) of corner or intersection.

2. Form expansion joints of intermeshing hooked flanges, not less than 1 inch (25 mm) deep, filled with sealant concealed within joints.

2. Use lapped expansion joints only where indicated on Drawings.

1. Fasteners: Use fastener sizes that penetrate wood blocking or sheathing not less than 1-1/4 inches (32 mm) for nails and not less than 3/4 inch (19 mm) for wood screws.

1. Conceal fasteners and expansion provisions where possible in exposed work and locate to minimize possibility of leakage. Cover and seal fasteners and anchors as required for a tight installation.

1. Seal joints as required for watertight construction.

5. Use sealant-filled joints unless otherwise indicated. Embed hooked flanges of joint members not less than 1 inch (25 mm) into sealant. Form joints to completely conceal sealant. When ambient temperature at time of installation is between 40 and 70 deg F (4 and 21 deg C), set joint members for 50 percent movement each way. Adjust setting proportionately for installation at higher ambient temperatures. Do not install sealant-type joints at temperatures below 40 deg F (4 deg C).

5. Prepare joints and apply sealants to comply with requirements in Section 07 92 00 "Joint Sealants."

1. Rivets: Rivet joints in uncoated aluminum where necessary for strength.

0. ROOF-DRAINAGE SYSTEM INSTALLATION

2. General: Install sheet metal roof-drainage items to produce complete roof-drainage system according to cited sheet metal standard unless otherwise indicated. Coordinate installation of roof perimeter flashing with installation of roof-drainage system.

2. Downspouts: Join sections with 1-1/2-inch (38-mm) telescoping joints.

1. Provide hangers with fasteners designed to hold downspouts securely to walls. Locate hangers at top and bottom and at approximately 60 inches (1500 mm) o.c.

1. Provide elbows at base of downspout to direct water away from building.

2. Conductor Heads: Anchor securely to wall, with elevation of conductor head rim at minimum of 1 inch (25 mm) below scupper discharge.

0. ROOF FLASHING INSTALLATION

3. General: Install sheet metal flashing and trim to comply with performance requirements and cited sheet metal standard. Provide concealed fasteners where possible, and set units true to line, levels, and slopes. Install work with laps, joints, and seams that are permanently watertight and weather resistant.

3. Roof Edge Flashing: Anchor to resist uplift and outward forces according to recommendations in cited sheet metal standard unless otherwise indicated. Interlock bottom edge of roof edge flashing with continuous cleat anchored to substrate at staggered 3-inch (75-mm) centers.

3. Pipe or Post Counterflashing: Install counterflashing umbrella with close-fitting collar with top edge flared for elastomeric sealant, extending minimum of 4 inches (100 mm) over base flashing. Install stainless-steel draw band and tighten.

0. WALL FLASHING INSTALLATION

4. General: Install sheet metal wall flashing to intercept and exclude penetrating moisture according to cited sheet metal standard unless otherwise indicated. Coordinate installation of wall flashing with installation of wall-opening components such as windows, doors, and louvers.

0. ERECTION TOLERANCES

5. Installation Tolerances: Shim and align sheet metal flashing and trim within installed tolerance of 1/4 inch in 20 feet (6 mm in 6 m) on slope and location lines indicated on Drawings and within 1/8-inch (3-mm) offset of adjoining faces and of alignment of matching profiles.

5. Installation Tolerances: Shim and align sheet metal flashing and trim within installed tolerances specified in MCA's "Guide Specification for Residential Metal Roofing."

0. CLEANING AND PROTECTION

6. Clean exposed metal surfaces of substances that interfere with uniform oxidation and weathering.

6. Clean and neutralize flux materials. Clean off excess solder.

6. Clean off excess sealants.

6. Remove temporary protective coverings and strippable films as sheet metal flashing and trim are installed unless otherwise indicated in manufacturers written installation instructions. On completion of sheet metal flashing and trim installation, remove unused materials and clean finished surfaces as recommended by sheet metal flashing and trim manufacturer. Maintain sheet metal flashing and trim in clean condition during construction.

6. Replace sheet metal flashing and trim that have been damaged or that have deteriorated beyond successful repair by finish touchup or similar minor repair procedures.

END OF SECTION 07 62 00

SECTION 07 92 00 - JOINT SEALANTS

0. RELATED DOCUMENTS

0. Applicable provisions of Division 1 shall govern work under this Section.

0. SUMMARY

1. Section Includes:

0. Urethane joint sealants.

0. PREINSTALLATION MEETINGS

2. Preinstallation Conference: Conduct conference at Project site.

0. ACTION SUBMITTALS

3. Product Data: For each joint-sealant product.

3. Samples for Initial Selection: Manufacturer's color charts consisting of strips of cured sealants showing the full range of colors available for each product exposed to view.

0. INFORMATIONAL SUBMITTALS

4. Qualification Data: For qualified testing agency.

4. Product Test Reports: For each kind of joint sealant, for tests performed by manufacturer and witnessed by a qualified testing agency.

0. QUALITY ASSURANCE

5. Installer Qualifications: An authorized representative who is trained and approved by manufacturer.

5. Mockups: Install sealant in mockups of assemblies specified in other Sections that are indicated to receive joint sealants specified in this Section. Use materials and installation methods specified in this Section.

0. FIELD CONDITIONS

6. Do not proceed with installation of joint sealants under the following conditions:

0. When ambient and substrate temperature conditions are outside limits permitted by joint-sealant manufacturer or are below 40 deg F (5 deg C).

0. When joint substrates are wet.

0. Where joint widths are less than those allowed by joint-sealant manufacturer for applications indicated.

0. Where contaminants capable of interfering with adhesion have not yet been removed from joint substrates.

0. WARRANTY

7. Special Manufacturer's Warranty: Manufacturer agrees to furnish joint sealants to repair or replace those joint sealants that do not comply with performance and other requirements specified in this Section within specified warranty period.

0. Warranty Period: Five years from date of Substantial Completion.

7. Special warranties specified in this article exclude deterioration or failure of joint sealants from the following:

1. Movement of the structure caused by stresses on the sealant exceeding sealant manufacturer's written specifications for sealant elongation and compression.

1. Disintegration of joint substrates from causes exceeding design specifications.

1. Mechanical damage caused by individuals, tools, or other outside agents.

1. Changes in sealant appearance caused by accumulation of dirt or other atmospheric contaminants.

1. PRODUCTS

0. JOINT SEALANTS, GENERAL

0. Compatibility: Provide joint sealants, backings, and other related materials that are compatible with one another and with joint substrates under conditions of service and application, as demonstrated by joint-sealant manufacturer, based on testing and field experience.

0. URETHANE JOINT SEALANTS

1. Urethane, S, NS, 25, NT: Single-component, nonsag, nontraffic-use, plus 25 percent and minus 25 percent movement capability, urethane joint sealant; ASTM C 920, Type S, Grade NS, Class 25, Use NT.

0. Products: Subject to compliance with requirements, provide one of the following:

0. BASF Construction Chemicals - Building Systems; MasterSeal NP1.

0. Bostik, Inc.; Chem-Calk 900.

0. Pecora Corporation; Dynatrol I-XL.

0. Polymeric Systems, Inc.; Flexiprene 1000.

0. Sika Corporation U.S.; Sikaflex Textured Sealant.

0. Tremco Incorporated; Dymonic.

0. JOINT-SEALANT BACKING

2. Sealant Backing Material, General: Nonstaining; compatible with joint substrates, sealants, primers, and other joint fillers; and approved for applications indicated by sealant manufacturer based on field experience and laboratory testing.

2. Cylindrical Sealant Backings: ASTM C 1330, Type C (closed-cell material with a surface skin), and of size and density to control sealant depth and otherwise contribute to producing optimum sealant performance.

2. Bond-Breaker Tape: Polyethylene tape or other plastic tape recommended by sealant manufacturer for preventing sealant from adhering to rigid, inflexible joint-filler materials or joint surfaces at back of joint. Provide self-adhesive tape where applicable.

0. MISCELLANEOUS MATERIALS

3. Primer: Material recommended by joint-sealant manufacturer where required for adhesion of sealant to joint substrates indicated, as determined from preconstruction joint-sealant-substrate tests and field tests.

3. Cleaners for Nonporous Surfaces: Chemical cleaners acceptable to manufacturers of sealants and sealant backing materials, free of oily residues or other substances capable of staining or harming joint substrates and adjacent nonporous surfaces in any way, and formulated to promote optimum adhesion of sealants to joint substrates.

3. Masking Tape: Nonstaining, nonabsorbent material compatible with joint sealants and surfaces adjacent to joints.

1. EXECUTION

0. EXAMINATION

0. Examine joints indicated to receive joint sealants, with Installer present, for compliance with requirements for joint configuration, installation tolerances, and other conditions affecting performance of the Work.

0. Proceed with installation only after unsatisfactory conditions have been corrected.

0. PREPARATION

1. Surface Cleaning of Joints: Clean out joints immediately before installing joint sealants to comply with joint-sealant manufacturer's written instructions and the following requirements:

0. Remove all foreign material from joint substrates that could interfere with adhesion of joint sealant, including dust, paints (except for permanent, protective coatings tested and approved for sealant adhesion and compatibility by sealant manufacturer), old joint sealants, oil, grease, waterproofing, water repellents, water, surface dirt, and frost.

0. Clean porous joint substrate surfaces by brushing, grinding, mechanical abrading, or a combination of these methods to produce a clean, sound substrate capable of developing optimum bond with joint sealants. Remove loose particles remaining after cleaning operations above by vacuuming or blowing out joints with oil-free compressed air. Porous joint substrates include the following:

1. Concrete.

1. Masonry.

0. Remove laitance and form-release agents from concrete.

0. Clean nonporous joint substrate surfaces with chemical cleaners or other means that do not stain, harm substrates, or leave residues capable of interfering with adhesion of joint sealants. Nonporous joint substrates include the following:

3. Metal.

3. Glass.

3. Glazed surfaces of ceramic tile.

1. Joint Priming: Prime joint substrates where recommended by joint-sealant manufacturer or as indicated by preconstruction joint-sealant-substrate tests or prior experience. Apply primer to comply with joint-sealant manufacturer's written instructions. Confine primers to areas of joint-sealant bond; do not allow spillage or migration onto adjoining surfaces.

1. Masking Tape: Use masking tape where required to prevent contact of sealant or primer with adjoining surfaces that otherwise would be permanently stained or damaged by such contact or by cleaning methods required to remove sealant smears. Remove tape immediately after tooling without disturbing joint seal.

0. INSTALLATION OF JOINT SEALANTS

2. General: Comply with joint-sealant manufacturer's written installation instructions for products and applications indicated, unless more stringent requirements apply.

2. Sealant Installation Standard: Comply with recommendations in ASTM C 1193 for use of joint sealants as applicable to materials, applications, and conditions indicated.

2. Install sealant backings of kind indicated to support sealants during application and at position required to produce cross-sectional shapes and depths of installed sealants relative to joint widths that allow optimum sealant movement capability.

2. Do not leave gaps between ends of sealant backings.

2. Do not stretch, twist, puncture, or tear sealant backings.

2. Remove absorbent sealant backings that have become wet before sealant application, and replace them with dry materials.

2. Install bond-breaker tape behind sealants where sealant backings are not used between sealants and backs of joints.

2. Install sealants using proven techniques that comply with the following and at the same time backings are installed:

4. Place sealants so they directly contact and fully wet joint substrates.

4. Completely fill recesses in each joint configuration.

4. Produce uniform, cross-sectional shapes and depths relative to joint widths that allow optimum sealant movement capability.

2. Tooling of Nonsag Sealants: Immediately after sealant application and before skinning or curing begins, tool sealants according to requirements specified in subparagraphs below to form smooth, uniform beads of configuration indicated; to eliminate air pockets; and to ensure contact and adhesion of sealant with sides of joint.

5. Remove excess sealant from surfaces adjacent to joints.

5. Use tooling agents that are approved in writing by sealant manufacturer and that do not discolor sealants or adjacent surfaces.

5. Provide concave joint profile per Figure 8A in ASTM C 1193 unless otherwise indicated.

0. CLEANING

3. Clean off excess sealant or sealant smears adjacent to joints as the Work progresses by methods and with cleaning materials approved in writing by manufacturers of joint sealants and of products in which joints occur.

0. PROTECTION

4. Protect joint sealants during and after curing period from contact with contaminating substances and from damage resulting from construction operations or other causes so sealants are without deterioration or damage at time of Substantial Completion. If, despite such protection, damage or deterioration occurs, cut out, remove, and repair damaged or deteriorated joint sealants immediately so installations with repaired areas are indistinguishable from original work.

END OF SECTION 07 92 00

SECTION 09 91 00 - PAINTING

0. RELATED DOCUMENTS:

0. Applicable provisions of Division 1 shall govern work under this Section.

0. DESCRIPTION OF WORK:

1. This section includes:

0. Surface preparation, painting, and finishing of new and existing exposed interior and exterior items and surfaces, unless otherwise noted or specified.

0. Surface preparation, painting, and finishing of new exterior metals.

1. Surface preparation, priming, and finish coats specified in this section are in addition to shop-priming and surface treatment specified under other sections.

0. RELATED WORK:

2. Factory finished items will not require painting or finishing unless otherwise specified. Refer to technical sections for items to be furnished with a factory finish.

2. Prime coat will be factory applied on certain items. Refer to various technical sections for items to be furnished with a factory prime coat.

2. Nonferrous metal items will not require painting or finishing unless otherwise specified.

0. QUALITY ASSURANCE:

3. Materials shall be of manufacture, brand and quality as specified. Products of other manufacturers will not be accepted. Provide block fillers, primers and undercoat materials produced by the same manufacturer as the finish coats. All system components shall be compatible with one another and with substrates, as demonstrated by manufacturer based on testing and field experience.

3. Quality workmanship is required. Employ skilled craftsmen experienced in the use of the product involved with a record of successful service performance.

0. SUBMITTALS:

4. Product Data: Provide manufacturer’s technical information, including label analysis and instructions for handling, storing and applying each coating material proposed for use. Include data for all components of each system specified, including fillers, primers, etc. Cross-reference each proposed material to finish system specified.

4. Certification: Provide certification by manufacturer that products supplied comply with local regulations controlling use of volatile organic compounds (VOCs).

4. Submit two sample panels of each type finish system for color and texture approval. Label each sample as to finish system.

4. Manufacturer Material Safety Data Sheets for all materials which are not water based shall be readily accessible at the construction site at all times that materials are present at the site.

0. DELIVERY, STORAGE & HANDLING:

5. Deliver paint readymixed to job site in manufacturer’s original sealed containers with labels intact.

5. Store materials not in use in tightly covered containers in an approved well-ventilated area at a minimum ambient temperature of 45 degrees F. Maintain containers used in storage in a clean condition, free of foreign materials and residue. Provide adequate floor protection.

5. Remove oily or soiled rags and waste daily or store in sealed metal containers.

0. JOB CONDITIONS:

6. Paint only in areas which are clean and free of dust.

6. Do not apply materials on exterior surfaces during rainy or frosty weather or when temperature is below 50 degrees F.

1. PRODUCTS

0. COLORS AND FINISHES:

0. Match existing colors and match new colors as indicated.

0. MATERIALS:

1. Provide all materials necessary, as recommended by coating manufacturer, for successful performance of coating system on indicated substrate, whether all components are specified herein or not. Materials shall include, but not be limited to, fillers, barrier coats, primers, undercoats, and finish coats.

1. Select manufacturer and product from following list using materials of same manufacturer for each finish. Provide special tinted primer in lieu of scheduled primer for accent or deep tone colors.

1. TYPE "A" MATERIAL

0. + Benjamin Moore; Super Hide, 284

0. + Diamond Vogel PVA Primer/Surfacer, DU-1520

0. + Hallman Lindsay; Pro-Kote Latex Wall Primer, 227

0. + Sherwin Williams; Pro Mar 200 Zero VOC Interior Latex Primer B28W2600

1. TYPE "B" MATERIAL

1. + Benjamin Moore; Super Spec Latex Block Filler, 285

1. + Diamond Vogel Dia-Pro Acrylic Block Filler, BF-1515

1. + Hallman Lindsay; Block Kote Latex Interior Block Filler, 184

1. + Sherwin Williams; Prep-Rite Block Filler B25W25

1. TYPE "D" MATERIAL

2. + Benjamin Moore; Acrylic Metal Primer, M04

2. + Diamond Vogel V-Cote 200 Maintenance Primer/Finish, MC-1501

2. + Hallman Lindsay; Metalguard QD Alkyd Rust Inhibitive Primer, 330

2. + Sherwin Williams; Pro-Cryl Primer B66-310

1. TYPE "E" MATERIAL

3. + Benjamin Moore; Alkyd Metal Primer, M06

3. + Diamond Vogel Cote-All Multi-purpose Alkyd Metal Primer, AZ-0400

3. + Hallman Lindsay; Metalguard QD Alkyd Rust Inhibitive Primer, 330

3. + Sherwin Williams; SW KemBond HS B50ZAZ8

1. TYPE "L" MATERIAL

4. + Benjamin Moore; Super Spec Latex Eggshell Enamel, C274

4. + Diamond Vogel Permacryl Interior Latex Eggshell Enamel, DE-Series

4. + Hallman Lindsay; Wonder Kote Latex Eggshell Enamel, 270

4. + ICI Paint Stores; ICI 1412 Ultra-Hide Latex Eggshell Interior Wall & Trim Enamel

4. + Sherwin Williams; Product Replacement – Zero VOC Technology ProMar 200 Zero VOC Latex Eg-Shel, B20-2600 Series

1. TYPE "O" MATERIAL

5. + Benjamin Moore; Impervo High-Gloss Enamel #133

5. + Diamond Vogel Cote-All Multi-purpose Alkyd Gloss Enamel, AZ-Series

5. + Hallman Lindsay; Duraguard Hi-Solids Urethane Gloss Enamel, 311

5. + Sherwin Williams; ProMar 200 WB Acrylic-Alkyd Gloss, B35-8200 Series

1. TYPE "P" MATERIAL

6. + Benjamin Moore; Satin Impervo Enamel, C235

6. + Diamond Vogel Satinamel Interior/Exterior Alkyd Satin Enamel, CS-Series

6. + Hallman Lindsay; Duraguard Hi-Solids Urethane Alkyd Eggshell Enamel, 276

6. + Sherwin Williams; ProMar 200 WB Acrylic-Alkyd Eg-Shel, B33-8200

1. TYPE "R" MATERIAL

7. + Benjamin Moore; Waterborne Urethane Semi-Gloss Finish, M73S

7. + Hallman Lindsay; Waterbourne Acrylic Gloss Epoxy, Acryguard, 542

7. + PPG 95-1000 Aquapon Polyamide Clear Epoxy

7. + Pratt & Lambert; Palgard Epoxy Clear Coating, S3415 Series

7. + Sherwin Williams; Pro Industrial Waterbased Catalyzed Epoxy Gloss B73-300

1. TYPE "BB” MATERIAL

8. Sherwin Williams Bond-Plex Waterbased Acrylic B71

8. Approved Equivalent

1. EXECUTION

0. INSPECTION:

0. Examine substrates, areas and conditions under which painting will be performed for:

0. Defects which cannot be corrected by the procedures specified under Surface Preparation.

0. Compliance with paint application requirements.

0. Notify Contractor of surfaces requiring corrective work prior to painting.

0. Do not begin to apply paint until unsatisfactory conditions have been corrected and surfaces receiving paint are thoroughly dry.

0. Start of painting will be construed as the Applicator’s acceptance of surfaces and conditions within a particular area.

0. Coordination of Work: Review other Sections in which primers are provided to ensure compatibility of the total system for various substrates. On request, furnish information on characteristics of finish materials to ensure use of compatible primers.

0. SURFACE PREPARATION:

1. Remove hardware and hardware accessories, plates, machined surfaces, lighting fixtures, and similar items already installed that are not to be painted. If removal is impractical or impossible because of the size or weight of the item, provide surface-applied protection before surface preparation and painting.

1. Protect, with suitable protective material, all finished surfaces and items, and existing surfaces and items not scheduled to be painted, that occur in close proximity of the area being painted.

1. After completing painting operations in each space or area, reinstall items removed using workers skilled in the trades involved.

1. Before applying paint or other surface treatments, clean the substrates of substances that could impair the bond of the various coatings. Remove oil and grease before cleaning. Schedule cleaning and painting so dust and other contaminants from the cleaning process will not fall on wet, newly painted surfaces.

1. Clean and prepare each particular substrate by appropriate methods to proper condition to receive paint according to manufacturer’s written construction. Provide barrier coats over incompatible primers, or remove and reprime.

1. Dull existing glossy surfaces by light sanding or washing with Tri-Sodium Phosphate.

1. Fill all holes, scratches, cracks or other irregularities with patching material.

1. Touch up abraded factory applied shop prime coat before applying finish coats. Wire-brush, clean with solvents recommended by paint manufacturer, and touch up with the same primer as the shop coat.

1. Prime metal corner and casing beads with an alkyd enamel underbody where waterthinned finish coats are specified.

1. Clean ungalvanized ferrous-metal surfaces that have not been shop coated; remove oil, grease, dirt, loose mill scale, and other foreign substances. Use solvent or mechanical cleaning methods that comply with the Steel Structures Painting Council’s (SSPC) recommendations.

1. Clean galvanized surfaces with nonpetroleum-based solvents so surface is free of oil and surface contaminants. Remove “white rust” by wire brushing. Remove pretreatment from galvanized sheet metal fabricated from coil stock by mechanical methods.

1. Clean aluminum surfaces with mineral spirits.

1. Clean wood…