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HomeMy WebLinkAbout079200 joint sealants.pdf Giant Eagle Market #6550 The Bridges, Carmel, Indiana Building Shell Bid & Permit DLA Project 2014040.00 August 12, 2014 JOINT SEALANTS 079200 - 1 SECTION 079200 - JOINT SEALANTS PART 1 - GENERAL 1.1 SUMMARY A. Exterior Joints in Vertical Surfaces and Non-traffic Horizontal Surfaces as Indicated Below: 1. Control and expansion joints in unit masonry. 2. Perimeter joints between materials listed above and frames of doors, louvers, and windows. 3. Other joints as indicated. B. Interior Joints in Vertical Surfaces as Indicated Below: 1. Control and expansion joints on exposed interior surfaces of exterior walls. 2. Perimeter joints of exterior openings where indicated. 3. Tile control and expansion joints. 4. Vertical control joints on exposed surfaces of interior unit masonry walls and partitions. 5. Perimeter joints between interior wall surfaces and frames of interior doors, windows, and elevator entrances. 6. Other joints as indicated. C. Interior Joints in Horizontal Traffic Surfaces. 1.2 SYSTEM PERFORMANCE REQUIREMENTS A. Provide joint sealants that have been produced and installed to establish and to maintain watertight and airtight continuous seals without causing staining or deterioration of joint substrates. B. Provide joint sealants for interior applications that have been produced and installed to establish and maintain airtight continuous seals that are water resistant and cause no staining or deterioration of joint substrates. 1.3 SUBMITTALS A. Product Data: For each joint sealant product required. B. LEED Submittals: 1. Product Data for Credit IEQ 4.1: For sealants and sealant primers used inside the weatherproofing system, documentation including printed statement of VOC content. Giant Eagle Market #6550 The Bridges, Carmel, Indiana Building Shell Bid & Permit DLA Project 2014040.00 August 12, 2014 JOINT SEALANTS 079200 - 2 C. Samples: For selection purposes in form of manufacturer's standard bead samples, consisting of strips of actual products showing full range of colors available, for each product exposed to view. 1.4 QUALITY ASSURANCE A. Installer Qualifications: Engage an experienced Installer who has completed joint sealant applications similar in material, design, and extent to that indicated for Project that have resulted in construction with a record of successful in-service performance. B. Single Source Responsibility for Joint Sealant Materials: Obtain joint sealant materials from a single manufacturer for each different product required. 1.5 DELIVERY, STORAGE, AND HANDLING A. Deliver materials to Project Site in original unopened containers or bundles with labels indicating manufacturer, product name and designation, color, expiration period for use, pot life, curing time, and mixing instructions for multi-component materials. B. Store and handle materials in compliance with manufacturer's recommendations to prevent their deterioration or damage due to moisture, high or low temperatures, contaminants, or other causes. 1.6 PROJECT CONDITIONS A. Environmental Conditions: Do not proceed with installation of joint sealants under the following conditions: 1. When ambient and substrate temperature conditions are outside the limits permitted by joint sealant manufacturer. 2. When ambient and substrate temperature conditions are outside the limits permitted by joint sealant manufacturer or below 40 deg F. 3. When joint substrates are wet. B. Joint Width Conditions: Do not proceed with installation of joint sealants where joint widths are less than allowed by joint sealant manufacturer for application indicated. C. Joint Substrate Conditions: Do not proceed with installation of joint sealants until contaminants capable of interfering with their adhesion are removed from joint substrates. 1.7 SEQUENCING AND SCHEDULING A. Sequence installation of joint sealants to occur not less than 21 nor more than 30 days after completion of waterproofing, unless otherwise indicated. Giant Eagle Market #6550 The Bridges, Carmel, Indiana Building Shell Bid & Permit DLA Project 2014040.00 August 12, 2014 JOINT SEALANTS 079200 - 3 PART 2 - PRODUCTS 2.1 MATERIALS A. For field application within the weatherproof barrier of the building envelope use paints, coatings, sealants and adhesives that comply with the VOC levels established in Section 018113 Sustainable Design requirements. Document products and quantities used (in ounces, liters or gallons). B. Compatibility: Provide joint sealants, joint fillers, and other related materials that are compatible with one another and with joint substrates under conditions of service and application, as demonstrated by sealant manufacturer based on testing and field experience. C. Type 1 - General Purpose Exterior Sealant: Polyurethane; ASTM C920, Type S, Grade NS, Class 25; single component. D. Type 2 - General Purpose Exterior Sealant: Polyurethane; ASTM C920, Type M, Grade NS, Class 25; two component. E. Type 3 - General Purpose Interior Sealant: Acrylic emulsion latex; ASTM C834, single component, paintable. F. Type 4 - Bathtub/Tile Sealant: White silicone; ASTM C920, Uses M and A; single component, mildew resistant. G. Type 5 - Not Used H. Type 6 - Interior Exposed Floor Joint Sealant: As indicated in Division 03 “Polished Concrete Floor” Section. 2.2 MANUFACTURERS A. Subject to compliance with requirements, provide sealant products by one of the following: 1. Tremco 2. Dow Corning 3. Sika Corporation 2.3 JOINT SEALANT BACKING A. General: Provide sealant backings of material and type that are nonstaining; are compatible with joint substrates, sealants, primers and other joint fillers; and are approved for applications indicated by sealant manufacturer based on field experience and laboratory testing. Giant Eagle Market #6550 The Bridges, Carmel, Indiana Building Shell Bid & Permit DLA Project 2014040.00 August 12, 2014 JOINT SEALANTS 079200 - 4 B. Plastic Foam Joint Fillers: Preformed, compressible, resilient, nonstaining, nonwaxing, nonextruding strips of flexible plastic foam of Closed-cell polyethylene foam, nonabsorbent to liquid water and gas, nonoutgassing in unruptured state, and of size, shape, and density to control sealant depth and otherwise contribute to producing optimum sealant performance. C. Bond-Breaker Tape: Polyethylene tape or other plastic tape as recommended by sealant manufacturer for preventing sealant from adhering to rigid, inflexible joint filler materials or joint surfaces at back of joint where such adhesion would result in sealant failure. Provide self-adhesive tape where applicable. 2.4 MISCELLANEOUS MATERIALS A. 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. B. 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 in any way joint substrates and adjacent nonporous surfaces, and formulated to promote optimum adhesion of sealants with joint substrates. C. Masking Tape: Nonstaining, nonabsorbent material compatible with joint sealants and surfaces adjacent to joints. PART 3 - EXECUTION 3.1 EXAMINATION A. Examine joints indicated to receive joint sealants, with Installer present, for compliance with requirements for joint configuration, installation tolerances, and other conditions affecting joint sealant performance. Do not proceed with installation of joint sealants until unsatisfactory conditions have been corrected. 3.2 PREPARATION A. Surface Cleaning of Joints: Clean out joints immediately before installing joint sealants to comply with recommendations of joint sealant manufacturer and the following requirements: 1. 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. 2. Clean concrete, masonry, unglazed surfaces of ceramic tile, and similar porous joint substrate surfaces by brushing, grinding, blast cleaning, mechanical abrading, or a combination of these methods to produce a clean, sound substrate capable of developing Giant Eagle Market #6550 The Bridges, Carmel, Indiana Building Shell Bid & Permit DLA Project 2014040.00 August 12, 2014 JOINT SEALANTS 079200 - 5 optimum bond with joint sealants. Remove loose particles remaining from above cleaning operations by vacuuming or blowing out joints with oil-free compressed air. 3. Remove laitance and form release agents from concrete. 4. Clean metal, glass, porcelain enamel, glazed surfaces of ceramic tile, and other nonporous surfaces with chemical cleaners or other means that do not stain, harm substrates, or leave residues capable of interfering with adhesion of joint sealants. B. Joint Priming: Prime joint substrates where indicated or where recommended by joint sealant manufacturer based on preconstruction joint sealant-substrate tests or prior experience. Apply primer to comply with joint sealant manufacturer's recommendations. Confine primers to areas of joint sealant bond; do not allow spillage or migration onto adjoining surfaces. C. Masking Tape: Use masking tape where required to prevent contact of sealant 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. 3.3 INSTALLATION OF JOINT SEALANTS A. General: Comply with joint sealant manufacturer's printed installation instructions applicable to products and applications indicated, except where more stringent requirements apply. B. Sealant Installation Standard: Comply with recommendations of ASTM C 1193 for use of joint sealants as applicable to materials, applications, and conditions indicated. C. Acoustical Sealant Application Standard: Comply with recommendations of ASTM C 919 for use of joint sealants in acoustical applications as applicable to materials, applications, and conditions indicated. D. Installation of Sealant Backings: Install sealant backings to comply with the following requirements: 1. Install joint fillers of type indicated to provide support of sealants during application and at position required to produce the cross-sectional shapes and depths of installed sealants relative to joint widths that allow optimum sealant movement capability. a. Do not leave gaps between ends of joint fillers. b. Do not stretch, twist, puncture, or tear joint fillers. 2. Install bond breaker tape between sealants where backer rods are not used between sealants and joint fillers or back of joints. E. Installation of Sealants: Install sealants by proven techniques that result in sealants directly contacting and fully wetting joint substrates, completely filling recesses provided for each joint configuration, and providing uniform, cross-sectional shapes and depths relative to joint widths that allow optimum sealant movement capability. Install sealants at the same time sealant backings are installed. F. Tooling of Nonsag Sealants: Immediately after sealant application and prior to time skinning or curing begins, tool sealants to form smooth, uniform beads of configuration indicated, to Giant Eagle Market #6550 The Bridges, Carmel, Indiana Building Shell Bid & Permit DLA Project 2014040.00 August 12, 2014 JOINT SEALANTS 079200 - 6 eliminate air pockets, and to ensure contact and adhesion of sealant with sides of joint. Remove excess sealants from surfaces adjacent to joint. Do not use tooling agents that discolor sealants or adjacent surfaces or are not approved by sealant manufacturer. G. Provide concave joint configuration unless otherwise indicated. 3.4 CLEANING A. Clean off excess sealants or sealant smears adjacent to joints as work progresses by methods and with cleaning materials approved by manufacturers of joint sealants and of products in which joints occur. 3.5 PROTECTION A. Protect joint sealants during and after curing period from contact with contaminating substances or from damage resulting from construction operations or other causes so that they are without deterioration or damage at time of Project completion. If, despite such protection, damage or deterioration occurs, cut out and remove damaged or deteriorated joint sealants immediately so that and installations with repaired areas are indistinguishable from original work. 3.6 JOINT SEALANT SCHEDULE A. Control, Expansion, and Soft Joints in Masonry, and Between Masonry and Adjacent Work: Type 2. B. Exterior Joints for Which No Other Sealant Type is Indicated: Type 2; colors as selected. C. Joints Between Exterior Metal Frames and Adjacent Work (except masonry): Type 1. D. Under Exterior Door Thresholds: Type 1. E. Interior Joints for Which No Other Sealant is Indicated: Type 3; colors as selected. F. Control and Expansion Joints in Interior Exposed Concrete Slabs and Floors: Type 6. G. Joints Between Plumbing Fixtures and Walls and Floors, and Between Countertops and Walls: Type 4. END OF SECTION 079200