SECTION DAMPPROOFING AND WATERPROOFING

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1 SECTION DAMPPROOFING AND WATERPROOFING PART 1 - GENERAL 1.1 SUMMARY A. Section Includes: 1. Sheet Membrane Waterproofing 2. Under-Slab-On-Grade Vapor Retarder B. Related Sections: 1. Section Cast-In-Place Concrete 2. Section Unit Masonry Work 3. Section Building Insulation 1.2 SYSTEM DESCRIPTION A. General: Provide waterproofing that prevents the passage of liquid water under hydrostatic pressure and complies with requirements as demonstrated by testing performed by an independent testing agency of manufacturer s current sheet membrane. 1.3 SUBMITTALS A. Submit "Letter of Conformance" in accordance with Section with the following supporting data: 1. Include product data on each type of dampproofing and waterproofing product specified, including data substantiating that materials comply with specified requirements. a. Mark each copy to identify applicable products, characteristics, models, options and other supplemental data to clearly communicate information specific to this project. B. Samples, 3 x 6 inches minimum size, of each fluid-applied and sheet membrane waterproofing material specified for Project. 1.4 QUALITY ASSURANCE A. Installer Qualifications: Engage an experienced Installer who has completed fluid-applied and sheet membrane waterproofing applications similar in material, design, and extent to that indicated for Project and that has resulted in construction with a record of successful in-service performance. 1. Assign work closely associated with waterproofing, including (but not limited to) waterproofing accessories, and flashings used in conjunction with waterproofing, expansion joints in membrane, insulation, and protection course on membrane, to Installer of fluid-applied waterproofing, for single, undivided responsibility LK 15173

2 B. Single-Source Responsibility: Obtain primary waterproofing materials of each type required from a single manufacturer. C. Pre-Installation Conference: A pre-installation conference shall be held prior to commencement of field operations to establish procedures to maintain optimum working conditions and to coordinate this work with related and adjacent work. Agenda for meeting shall include review of special details and flashing. 1.5 DELIVERY, STORAGE, AND HANDLING A. Deliver materials to Project site in original packages with seals unbroken, labeled with manufacturer s name, product, date of manufacturer, and directions for storage. B. Store materials in their original undamaged packages in a clean, dry, protected location and within temperature range required by waterproofing manufacturer. Protect stored materials from direct sunlight. 1.6 PROJECT CONDITIONS A. Environmental Conditions: Apply waterproofing within range of ambient and substrate temperatures recommended by waterproofing manufacturer. Do not apply waterproofing to a damp or wet substrate. 1. Do not apply waterproofing in snow, rain, fog, or mist. B. Maintain adequate ventilation during penetration and application of waterproofing materials. PART 2 - PRODUCTS 2.1 MATERIALS, GENERAL A. General Compatibility: Provide products that are recommended by manufacturer to be fully compatible with indicated substrates. 2.2 SHEET MEMBRANE WATERPROOFING A. Approved Manufacturers: 1. Bituthene 4000 ; Grace Construction Products ( ) 2. "CCW MiraDRI 860/861"; Carlisle Coatings and Waterproofing Inc. ( ) Waterproofing Membrane ; Polyguard Products Inc. ( ) 2.3 UNDER-SLAB-ON-GRADE VAPOR BARRIER: A. Vapor Barrier Under-Slabs-On-Grade: 1. Plastic Vapor Retarder: ASTM E1745, Class A, with maximum performance rating of perm. Provide in lengths and widths required for least number of seams. a. Under Slab: 6 mils thick. 2. Manufacturers: LK 15173

3 2.4 MISCELLANEOUS MATERIALS a. Stego Wrap Vapor Barrier ; Stego Industries, LLC ( ) b. "Perminator Underslab Vapor Retarder"; W.R. Meadows, Inc. ( ) c. Griffoyln Griffiolyn a Division of Reef Industries) ( ) d. Moistop Ultra ; Fortifiber Corporation ( ) e. Viper VaporCheck (16 mil) ; Insulation Solutions, Inc.( ) A. In addition to primary waterproofing materials, provide the following: 1. Primer/Filler/Sealer: As recommended by waterproofing manufacturer. 2. Flashings, Cant Strips, and Accessories: As recommended by waterproofing manufacturer. 3. Protection Course: Board as approved by system manufacturer, premolded, 1/8 inch (3 mm) thick, semi-rigid board consisting of mineralstabilized asphalt core sandwiched between layers of asphalt-saturated felt, surface-coated with asphalt and sealed to core under heat and pressure, and provided with polyethylene film facings. a. Approved Manufacturers: 1) "Ram-Tough Protection Board"; The Barrett Co. ( ) 2) "PC-2 Protection Course"; W.R. Meadows, Inc. ( ) 3) "Protection Sheet"; Pecora Corp. ( ) 4) "Protection Course II"; Sonneborn Division, ChemRex, a Degussa Construction Chemicals Americas Company ( ) 5) "Tremboard"; Tremco, Inc. ( ) PART 3 - EXECUTION 3.1 EXAMINATION A. Examine substrates, areas, and conditions under which waterproofing systems will be applied, with Installer present, for compliance with requirements. Do not proceed with installation until unsatisfactory conditions have been corrected. 1. Do not proceed with installation until after minimum concrete curing period recommended by waterproofing manufacturer. 2. Verify substrate is visibly dry and free of moisture. Test for capillary moisture by plastic sheet method according to ASTM D4263. B. Inspect concrete and concrete masonry surfaces for: 1. Contamination: Algae, chalkiness, dirt, dust, efflorescence, form oil, fungus, grease, mildew or other foreign substances. 2. Surface absorption and chalkiness. 3. Cracks: Measure crack width and record location of cracks. 4. Damage and deterioration. 5. Moisture content and moisture damage: LK 15173

4 a. Use a moisture meter to determine if the surface is dry enough to receive the air and moisture barrier and record any areas of moisture damage or excess moisture. 6. Compliance with specification tolerances: a. Record areas that are out of tolerance (greater than 1/4 inch in 8-0 feet deviation in plane). 7. Provide at elevator concrete pit. C. Notify Owner s Representative in writing of anticipated problems using waterproofing over substrate. 3.2 PREPARATION A. Clean substrate of projections and substances detrimental to work; comply with instructions of prime materials manufacturer. B. Install cant strips and similar accessories as shown and as recommended by prime materials manufacturer even though not shown. C. Fill voids, seal joints, and apply bond breakers as recommended by prime materials manufacturer. D. Prime substrate as recommended by prime materials manufacturer. 3.3 INSTALLATION - GENERAL A. Comply with manufacturer's written installation recommendations, including preparation of substrate surfaces, detail coatings of joints and planar changes in substrate, and priming of substrates. B. Mix separately packaged components in accordance with manufacturer's written recommendations. 3.4 INSTALLATION - SHEET MEMBRANE WATERPROOFING A. Apply waterproofing membrane material to substrates and adjoining surfaces indicated to receive membrane. Apply in accordance with manufacturer's recommendations to obtain thicknesses specified and using applicators and techniques best suited for slope and type of substrate to which applied. 1. If two-coat application is required to obtain membrane thickness specified below, apply second coat only after initial coat has cured as recommended by manufacturer. 2. Provide 60 mil (average) membrane thickness, with minimum 50 mil thickness. B. Install sheet membrane waterproofing material to substrates and adjoining surfaces indicated to receive membrane. Install in accordance with manufacturer's recommendations using applicators and techniques best suited for type of substrate to which applied LK 15173

5 C. Install sheet-type flashings and joint covers where indicated and as recommended by prime materials manufacturer. Extend flashings onto perpendicular surfaces and other work penetrating substrate to not less than 6 inches beyond finished surface to be applied over waterproofing. D. Permit membrane to cure under conditions that will not contaminate or deteriorate waterproofing material. Block off traffic and protect membrane from physical damage. E. Install protection course on cured membrane (after testing, if required) without delay to minimize period of membrane exposure. 1. On vertical surfaces comply with waterproofing manufacturer's recommendations for adhesion of protection course to membrane. 2. In-Place Testing: Before completed membranes on horizontal surfaces are covered by protection course or other work, test for leaks with 2 inch depth of water maintained for 24 hours. Repair any leaks revealed by examination of substructure, and repeat test until no leakage is observed. F. Provide separation between waterproofing membrane and non-compatible substrates and materials in accordance with manufacturers published instructions. 3.5 INSTALLATION - UNDER-SLAB-ON-GRADE VAPOR RETARDER A. General: Extend vapor and moisture barriers to extremities of areas to be protected from vapor transmission. Extend vapor and moisture barriers to cover miscellaneous voids in insulated substrates, including those which have been stuffed with loose fiber-type insulation. B. Seal joints caused by pipes, conduits, electrical boxes, and similar items penetrating vapor retarders with vapor-retarder tape of type recommended by vapor retarder manufacturer to create an air-tight seal between penetrating objects and vapor retarder. C. Repair any tears or punctures in vapor and moisture barriers immediately before concealment by other work. Cover with vapor-retarder tape or another layer of vapor retarder. D. Refer to Section for installation of Under-slab-on-grade insulation. 3.6 PROTECTING AND CLEANING A. Protect waterproofing from damage and wear during application and remainder of construction period, according to manufacturer s written instructions. B. Clean spillage and soiling from adjacent construction using cleaning agents and procedures recommended by manufacturer of affected construction. END OF SECTION LK 15173