1. Include setting drawings showing layout, sizes, sections, profiles, and joint details of pedestal-supported concrete pavers.

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1 SECTION ELASTOMERIC SHEET WATERPROOFING PART 1 - GENERAL 1.1 RELATED DOCUMENTS Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section. 1.2 SUMMARY Section Includes: 1. EPDM rubber sheet waterproofing. 1.3 PREINSTALLATIONMEETINGS Preinstallation Conference: 1. Review waterproofing requirements including surface preparation, substrate condition and pretreatment, minimum curing period, forecasted weather conditions, special details and sheet flashings, installation procedures, testing and inspection procedures, and protection and repairs. 1.4 ACTION SUBMITTALS Product Data: For each type of product. 1. Include construction details, material descriptions, and tested physical and performance properties of waterproofing. 2. Include manufacturer's written instructions for evaluating, preparing, and treating substrate. Shop Drawings: Show locations and extent of waterproofing and details of substrate joints and cracks, sheet flashings, penetrations, inside and outside comers, tie-ins with adjoining waterproofing, and other termination conditions. 1. Include setting drawings showing layout, sizes, sections, profiles, and joint details of pedestal-supported concrete pavers. 1.5 INFORMATIONAL SUBMITTALS Qualification Data: For Installer. Field quality-control reports. C. Sample Warranties: For special warranties. ELASTOMERIC SHEET WATERPROOFING

2 1.6 QUALITY ASSURANCE Installer Qualifications: An entity that employs installers and supervisors who are trained and approved by waterproofing manufacturer. 1.7 FIELD CONDITIONS Environmental Limitations: Apply waterproofing within the range of ambient and substrate temperatures recommended in writing by waterproofing manufacturer. Do not apply waterproofing to a damp or wet substrate. 1. Do not apply waterproofing in snow, rain, fog, or mist. Maintain adequate ventilation during preparation and application of waterproofing materials. 1.8 WARRANTY Manufacturer's Warranty: Manufacturer's standard materials-only warranty in which manufacturer agrees to furnish replacement waterproofing material for waterproofing that does not comply with requirements or that fails to remain watertight within specified warranty period. 1. Warranty Period: 10 years from date of Substantial Completion. PART 2 -PRODUCTS 2.1 MATERIALS, GENERAL Source Limitations for Waterproofing System: Obtain waterproofing materials from single source from single manufacturer. 2.2 SHEET WATERPROOFING EPDM Rubber Sheet: ASTM D 6134, Type I, 45-mil- thick flexible sheet, unreinforced, formed from EPDM. 1. Products: Subject to compliance with requirements, available products that may be incorporated into the Work include, but are not limited to, the following: a. Firestone; EPDM fully adhered. b. Carlisle Coatings & Waterproofing In; EPDM, fully adhered. Versico Roofing Systems; EPDM fully adhered. d. Or equal 2.3 AUXILIARY MATERIALS General: Furnish auxiliary materials recommended by waterproofing manufacturer for intended use and compatible with sheet waterproofing. ELASTOMERIC SHEET WATERPROOFING

3 1. Furnish liquid-type auxiliary materials that comply with VOC limits of authorities having jurisdiction. Concealed Sheet Flashing: Same material, construction, and thickness as sheet waterproofing, uncured EPDM, as required by manufacturer. C. Exposed Sheet Flashing: 45-mil thick EPDM, cured or uncured, as required by manufacturer. D. Vent Boot Flashings: cured or uncured, as required by manufacturer. E. Bonding Adhesives: For bonding waterproofing sheets and sheet flashings to substrates and projections. F. Splicing Cement and Cleaner: Single-component butyl splicing cement and solvent-based splice cleaner. 1. Butyl Gum Tape: 30-mil- (0.76-mm-) thick-by-6 inch- (160-mm-) wide, uncured butyl with polyethylene release film. G. Lap Sealant: Single-component sealant. H. In-Seam Sealant: Single-component sealant. I. Water-Cutoff Mastic: Butyl mastic sealant. J. Waterproofing and Sheet-Flashing Accessories: Provide sealants, pourable sealers, cone and vent flashings, inside and outside comer flashings, termination reglets, and other accessories recommended by waterproofing manufacturer for intended use. K. Metal Termination Bars: Manufacturer's standard aluminum bars, approximately 1 inch (25 mm) wide, prepunched, with fasteners. L. Protection Course: Recovery board, DensDeck or equal with a nominal thickness of 1/2 inch. PART 3 - EXECUTION 3.1 EXAMINATION Examine substrates, areas, and conditions, with Installer present, for compliance with requirements and other conditions affecting performance of the waterproofing. 1. Verify that concrete has cured and aged for minimum time period recommended in writing by waterproofing manufacturer. 2. Verify that substrate is visibly dry and within the moisture limits recommended in writing by manufacturer. Test for capillary moisture by plastic sheet method according to ASTMD4263. Proceed with installation only after unsatisfactory conditions have been corrected. ELASTOMERIC SHEET WATERPROOFING

4 3.2 C. D. E. F. SURFACE PREPARATION Clean, prepare, and treat substrates according to manufacturer's written instructions. Provide clean, dust-free, and dry substrates for waterproofing application. Mask off adjoining surfaces not receiving waterproofing to prevent spillage and overspray affecting other construction. Remove grease, oil, bitumen, form-release agents, paints, curing compounds, and other penetrating contaminants or film-forming coatings from concrete. Remove fins, ridges, mortar, and other projections and fill honeycomb, aggregate pockets, holes, and other voids. Prepare, fill, prime, and treat joints and cracks in substrates. Remove dust and dirt from joints and cracks according to ASTM D Prepare, treat, and seal vertical and horizontal surfaces at tenninations and penetrations through waterproofing and at drains and protrusions. 3.3 D. E. F. FULLY ADHERED SHEET INSTALLATION Install fully adhered sheets over entire area to receive waterproofing according to manufacturer's written instructions and recommendations in ASTM D Accurately align sheets and maintain uniform side and end laps of minimum dimensions required. Stagger end laps. Apply bonding adhesive to substrates at required rate and allow it to partially dry. Apply bonding adhesive to sheets and firmly adhere sheets to substrates. Do not apply bonding adhesive to splice area of sheet. Install fully adhered sheets and auxiliary materials to tie into existing waterpr_oofing. Repair tears, voids, and lapped seams in waterproofing that do not comply with requirements. Slit and flatten fishmouths and blisters. Patch with sheet waterproofing extending beyond repaired areas in all directions. G. Horizontal Application: Apply sheets with side laps shingled with slope of deck where possible. 1. Spread sealant bed over deck drain flange at deck drains and securely seal sheet waterproofing in place with clamping ring. 3.4 SEAM INSTALLATION Cement and Tape Splice: Clean splice areas, apply splicing cement and butyl gum tape, and firmly roll side and end laps of overlapping sheets according to manufacturer's written instructions to ensure a watertight seam installation. Apply lap sealant and seal edges of sheet terminations. ELASTOMERIC SHEET WATERPROOFING

5 3.5 SHEET-FLASHING INSTALLATION AND BOOT FLASHINGS Install sheet and boot I preformed flashing accessories and adhere to substrates according to waterproofing manufacturer's written instructions. Form wall flashings using exposed sheet flashing. Extend deck sheet waterproofing to form wall flashings. 1. Flash penetrations and field-formed inside and outside comers with uncured sheet flashing. 2. Clean splice areas, apply splicing cement, and firmly roll side and end laps of overlapping sheets to ensure a watertight installation. Apply lap sealant and seal edges of sheet-flashing terminations. D. E. Cover expansion joints and discontinuous deck-to-wall or deck-to-deck joints by extending deck sheet waterproofing over joints. Terminate and seal top of sheet flashings with mechanically anchored termination bars. 3.6 MECHANICALLY FASTENED INSULATION INSTALLATION Install one or more layers.of board insulation to achieve required thickness over waterproofed surfaces. Cut and fit to within 3/4 inch (19 mm) of projections and penetrations. On horizontal surfaces, loosely lay insulation units according to manufacturer's written instructions. Stagger end joints and tightly abut insulation units. Mechanically fasten insulation with fasteners that penetrate into deck below unsulation. 3.7 PROTECTION, REPAIR, AND CLEANING Protect waterproofing from damage and wear during remainder of construction period. Where traffic must continue over finished roof membrane, protect surfaces using durable materials. Protect installed board insulation from damage due to UV light, harmful weather exposures, physical abuse, and other causes. Provide temporary coverings where insulation is subject to abuse and cannot be concealed and protected by permanent construction immediately after installation. D. Correct deficiencies in or remove waterproofing that does not comply with requirements; repair substrates, reapply waterproofing, and repair sheet flashings. E. Clean spillage and soiling from adjacent construction using cleaning agents and procedures recommended by manufacturer of affected construction. END OF SECTION ELASTOMERIC SHEET WATERPROOFING

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7 SECTION JOINT SEALANTS PART I -GENERAL I.I SUMMARY Section Includes: 1. Urethane joint sealants. 1.2 ACTION SUBMITTALS Product Data: For each joint-sealant product. PART 2 - PRODUCTS 2.1 JOINT SEALANTS, GENERAL 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. VOC Content of Interior Sealants: Sealants and sealant primers used inside the weatherproofing system shall comply with the following limits for VOC content when calculated according to 40 CFR 59, Subpart D (EPA Method 24): 1. Architectural Sealants: 250 g/l. 2. Sealant Primers for Nonporous Substrates: 250 g/l. 3. Sealant Primers for Porous Substrates: 775 g/l. C. Stain-Test-Response Characteristics: Where sealants are specified to be nonstaining to porous substrates, provide products that have undergone testing according to ASTM C 1248 and have not stained porous joint substrates indicated for Project. D. Colors of Exposed Joint Sealants: Match color of materials sealant applied to. 2.2 JOINT-SEALANT BACKING 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. Bond-Breaker Tape: Polyethylene tape or other plastic tape recommended by sealant. manufacturer. JOINT SEALANTS

8 2.3 MISCELLANEOUS MATERIALS 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. Cleaners for Nonporous Surfaces: Chemical cleaners acceptable to manufacturers of sealants and sealant backing materials. Masking Tape: Nonstaining, nonabsorbent material compatible with joint sealants and surfaces adjacent to joints. PART 3 - EXECUTION 3.1 PREPARATION ' ' 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: 1. Remove laitance and form-release agents from concrete. 2. 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. Joint Priming: Prime joint substrates where recommended by joint-sealant manufacturer or as indicated by preconstructionjoint-sealant-substrate tests or prior experience. Masking Tape: Use masking tape where required to prevent contact of sealant or primer with adjoining surfaces. 3.2 INSTALLATION OF JOINT SEALANTS C. D. General: Comply with ASTM C 1193 and joint-sealant manufacturer's written installation instructions for products and applications indicated, unless more stringent requirements apply. 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. Install bond-breaker tape behind sealants where sealant backings are not used between sealants and backs of joints. Install sealants using proven techniques that comply with the following and at the same time backings are installed: 1. Place sealants so they directly contact and fully wet joint substrates. 2. Completely fill recesses in each joint configuration. 3. Produce unifo1m, cross-sectional shapes and depths relative to joint widths that allow optimum sealant movement capability. JOINT SEALANTS

9 E. Tooling ofnonsag Sealants: Immediately after sealant application and before skinning or curing begins, tool sealants to form smooth, uniform beads of configuration indicated. Use tooling agents that are approved in writing by sealant manufacturer and that do not discolor sealants or adjacent surfaces. 1. Provide concave joint profile per Figure 8A in ASTM C 1193 unless otherwise indicated. END OF SECTION JOINT SEALANTS

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