072619 Moisture vapor control SG2+Self Leveling - 041317.pdf
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<h1>072619 Moisture vapor control SG2+Self Leveling - 041317.pdf</h1> <p>GUIDE SPECIFICATION</p> <p>VAPORTIGHT COAT®-SG2 + LEVEL-HF <br />Copyright 2017, AQUAFIN, Inc., 505 Blue Ball Rd., #160, Elkton, MD 21921 <br />(410) 392-2300 (800-394-1410) <br />************************************************************************************** <br />SECTION 07 26 19 <br />SURFACE APPLIED MOISTURE VAPOR MITIGATION SYSTEM + CEMENTITIOUS SELF LEVELING <br />UNDERLAYMENT <br />PART 1 - GENERAL <br />1.1</p> <p>SECTION INCLUDES <br />A.</p> <p>Furnish all labor, materials, tools and equipment as necessary to perform installation of a <br />surface (topically) applied moisture mitigation system (vapor retarder) overlaid with a <br />cementitious self-leveling underlayment on new and/or existing concrete slabs as shown on <br />drawings and as specified in this section.</p> <p>B.</p> <p>Repairs and preparation of concrete floors.</p> <p>C.</p> <p>Related Sections: (Specifier: Delete or add necessary Sections) <br />1. <br />2. <br />3. <br />4. <br />5. <br />6. <br />7. <br />8. <br />9.</p> <p>1.2</p> <p>1.3</p> <p>See section 033000 Cast-in-Place Concrete. <br />See section 035416 Hydraulic Cement Underlayment <br />See section 096200 Specialty Flooring. <br />See section 096300 Masonry Flooring. <br />See section 096400 Wood Flooring. <br />See section 096500 Resilient Flooring. <br />See section 096600 Terrazzo Flooring. <br />See section 096700 Fluid-Applied Flooring. <br />See section 096800 Carpet.</p> <p>REFERENCES <br />A.</p> <p>ASTM F 1869 - Standard Test Method for Measuring Moisture Vapor Emission Rate of <br />Concrete Subfloor Using Anhydrous Calcium Chloride; 1998.</p> <p>B.</p> <p>ASTM E 1907 – Standard Practices for Determining Moisture-Related Acceptability of <br />Concrete Floors to Receive Moisture-Sensitive Finishes; 1997.</p> <p>C.</p> <p>ASTM E 96 - Standard Test Methods for Water Vapor Transmission of Materials; 1995.</p> <p>D.</p> <p>ASTM D 4541 B - Pull-Off Strength of Coatings; 1995, Modified.</p> <p>E.</p> <p>ASTM F2170 – Relative Humidity in Concrete Floor Slabs Using in Situ Probes.</p> <p>SUBMITTALS <br />A.</p> <p>General: <br />Submit manufacturer's certification that proposed materials, details and systems as indicated <br />and specified fully comply with manufacturer's details and specifications. If any portion of <br />Contract Documents does not conform to manufacturer's standard recommendations, submit <br />notification of portions of design that are at variance with manufacturer's specifications.</p> <p>07 26 19-1</p> <p>B.</p> <p>1.4</p> <p>1.5</p> <p>1.6</p> <p>1.7</p> <p>Product Data: <br />1. <br />Submit manufacturer's literature, installation instructions and SDS (Safety Data <br />Sheet) for each product. <br />2. <br />Test data: <br />Submit independent testing laboratory data for product, evidencing: <br />a. <br />up to 95% reduction of water vapor transmission (tested as per <br />ASTM E 96-95). <br />b. <br />product is insensitive to alkaline environment up to pH 14 (tested <br />as per ASTM D 1308).</p> <p>QUALITY ASSURANCE <br />A.</p> <p>Manufacturer Qualifications: <br />1. <br />Company specializing in manufacturing products specified in this Section with <br />minimum 10 years documented experience.</p> <p>B.</p> <p>Installer Qualifications: <br />1. <br />Acceptable to manufacturer with documented experience on at least 3 projects of <br />similar nature in past 5 years and/or training provided by the product manufacturer.</p> <p>DELIVERY, STORAGE AND HANDLING <br />A.</p> <p>Deliver and store in a dry, well ventilated area at minimum 50 deg F (10 deg C) and <br />maximum 90 deg F (32 deg C).</p> <p>B.</p> <p>Deliver materials in manufacturer's unopened containers fully identified with brand, type, <br />grade, class and all other qualifying information. Provide Safety Data Sheets for each <br />product.</p> <p>SYSTEM REQUIREMENTS <br />A.</p> <p>Coordinate floor sealing installation with other trades.</p> <p>B.</p> <p>Provide materials and accessories in timely manner so as not to delay Work.</p> <p>PROJECT CONDITIONS <br />A.</p> <p>Maintain surfaces to be sealed and surrounding air temperature at not less than 50 deg F (10 <br />deg C).</p> <p>B.</p> <p>Exercise caution when temperatures exceed 90 deg F (32 deg C).</p> <p>PART 2 - PRODUCTS <br />2.1</p> <p>TOPICAL MOISTURE MITIGATION SYSTEM <br />A.</p> <p>Approved Manufacturers: AQUAFIN, Inc. 505 Blue Ball Rd., #160, Elkton, MD, Phone (800) <br />394-1410 or (410) 392-2300; Fax (410) 392-2324; e-mail info@aquafin.net.</p> <p>B.</p> <p>Requests for substitutions will be considered only if submitted to the architect/engineer in <br />writing and must include substantiation of product performance, 10 days prior to the original <br />bid date.</p> <p>C.</p> <p>One-Coat Moisture Vapor Emission Reduction Control System (concrete floor sealer) <br />consisting of a two-component, moisture tolerant, high density, low odor, chemically <br />enhanced epoxy based product which must reduce vapor emissions (MVER) to ≤ 3 lbs./24</p> <p>07 26 19-2</p> <p>hrs*1000 SF or ≤ 85% RH and be compatible with floor finishes and adhesives approved by <br />the manufacturer. <br />Characteristics: <br />1. Product: <br />VAPORTIGHT COAT®-SG2 <br />2. Component-A and B: <br />Precise blend of white and yellowish liquid <br />3. Compressive Strength: (ASTM D-695) >11,000 psi (>80 Mpa) <br />4. Flexural Strength: (ASTM D-790) <br />>4,000 psi (>27 Mpa) <br />5. Bond/Adhesion: (ASTM D-4541) <br />>500 psi <br />(>3.5 Mpa) at 28 days <br />6. Permeance: (ASTM E-96) <br /><1.0 perm (<5.7E-08 grams/Pa*s*m2) <br />7. Alkaline Resistance: (ASTM D-1308) up to pH 14 <br />8. Vapor Reduction: (ASTM E-96) <br />up to 95% <br />9. VOC: <br />≤50 g/L <br />10. Cured for installation of flooring: <br />12 hrs at 73 deg F (23 deg C) <br />11. pH on cured surface: <br />7 <br />D.</p> <p>2.2</p> <p>Oven dried #20 – 50 silica sand (ASTM E11, No. 18 – 35 sieve sizes for full broadcast (to <br />“rejection”) into the fresh (wet) SG2.</p> <p>HYDRAULIC CEMENT UNDERLAYMENT <br />A.</p> <p>Approved Manufacturers: AQUAFIN, Inc. 505 Blue Ball Rd., #160, Elkton, MD, Phone (800) <br />394-1410 or (410) 392-2300; Fax (410) 392-2324; e-mail info@aquafin.net.</p> <p>B.</p> <p>Requests for substitutions will be considered only if submitted to the architect/engineer in <br />writing and must include substantiation of product performance, 10 days prior to the original <br />bid date.</p> <p>C.</p> <p>Hydraulic Cement-based Self-Leveling Underlayment with the following characteristics: <br />1. Product: <br />LEVEL-HF <br />2. Aggregate state: <br />Powder <br />3. Application: <br />Pail, barrel mix or pump <br />3. Compressive Strength: (ASTM C109) ~5000 psi (~34.5 MPa) @ 28d <br />4. Flexural Strength: (ASTM C348) <br />~1100 psi (~7.6 MPa) @ 28d <br />5. pH: <br />11 <br />6. VOC: <br />0 g/L</p> <p>D.</p> <p>Water shall be clean, potable, and sufficiently cool.</p> <p>E.</p> <p>Primer: No primer required if applied over fully sand broadcasted SG2.</p> <p>PART 3 - EXECUTION <br />3.1</p> <p>EXAMINATION <br />A.</p> <p>Examine all construction substrates and conditions under which concrete floor sealer material <br />(SG2) is to be installed. Do not proceed with the concrete floor sealer installation until <br />unsatisfactory conditions are corrected.</p> <p>B.</p> <p>Assure before application that surfaces to be treated do not contain any kind of sealer <br />(sodium, potassium, etc.), chlorides, oil, grease, dirt, curing compounds, or any substance <br />that might act as a bond breaker.</p> <p>07 26 19-3</p> <p>C.</p> <p>3.2</p> <p>Anhydrous Calcium Chloride Testing as per ASTM F-1869, and/or RH as per ASTM F2170 <br />and/or concrete core analysis. <br />1. Before installation of concrete floor sealer (SG2): use tests carried out by <br />Architect/Engineer during study phase, and confirm by testing through installer or <br />independent laboratory.</p> <p>PREPARATION <br />A.</p> <p>Protect adjacent surfaces not designated to receive SG2 concrete floor sealer.</p> <p>B.</p> <p>Substrate preparation: <br />1. Remove existing floor coverings, coatings and adhesives down to bare concrete, curing <br />compounds, efflorescence, dust, grease, laitance, etc. with steel shot blasting, abrasive <br />(sand) blasting or grinding using a diamond cup blade. Acid etching is not allowed. <br />2. Assure that all slabs have concrete surface profile ICRI CSP 3 - 5 for mechanical bond. <br />Smooth surfaces are not acceptable, they must be steel shot blasted. <br />3. Burn off reinforcing fibers and collect and vacuum remains. <br />4. Repair defective areas such as honeycombs, cracks or other defects with a suitable <br />repairing or manufacturer recommended mortar. <br />5. Treat saw cut and expansion joints as per manufacturer’s application guideline. <br />6. Install cementitious underlayment, leveling mortars, flash patching, on top of surface <br />applied concrete floor sealer (SG2). <br />7. Carefully rinse or pre-dampen several times all the surfaces to be treated with clean <br />water, leave no standing water.</p> <p>3.3</p> <p>INSTALLATION <br />A. Mix concrete floor sealer (SG2) material in proportions recommended by manufacturer’s printed <br />instructions. <br />B. Apply concrete floor sealer (SG2) material in quantities as per manufacturer's specifications and <br />recommendations. <br />1. Apply SG2 in one coat at 75 SF/gal = 160 SF/2.2 gal kit (~21 mils WFT). <br />2. Apply using roller or notched squeegee to the still moist substrate, and carefully scrub it into <br />the pores with a long handled scrub brush. Follow with a roller to achieve a uniform coverage. <br />C. Immediately (within 2 minutes) broadcast clean, dry, fresh water washed and dried #20-50 silica <br />sand (0.5 to 1.0 mm) to “rejection” (full broadcast) or at a rate up to 30-50 lb/100 SF (1.5 kg/m2) <br />into the fresh/wet concrete floor sealer (SG2). Walk over fresh/wet SG2 using shoes with <br />attached spikes. <br />F. Let fully broadcasted SG2 cure for minimum 12 hrs. as per manufacturer’s instructions, then <br />broom sweep and vacuum the surface to remove all loose sand. The clean, prepared surface of <br />the sand is the priming system for the LEVEL-HF underlayment. No additional priming is required. <br />G. Mix and pour LEVEL-HF at 3/8” (9.5 mm) thickness over the firmly sanded SG2 surface as per <br />manufacturer’s instructions.</p> <p>07 26 19-4</p> <p>H. It is not necessary to re-test the substrate for moisture emissions prior to installing the coating <br />(SG2) or floor covering (LEVEL-HF). <br />3.3</p> <p>FIELD QUALITY CONTROL <br />A. There is no in-situ test method applicable for this system. Where specified, an entire unopened <br />bag/unit of the product to be installed has to be sent to an independent testing facility to perform <br />testing.</p> <p>3.4</p> <p>ACCEPTANCE <br />A.</p> <p>Remove left over materials and any foreign material resulting from the work from the site.</p> <p>B.</p> <p>Clean adjacent surfaces and materials. Protect the underlayment (LEVEL-HF) from abuse by <br />other trades with plywood, Masonite or other suitable protection materials. <br />END OF SECTION</p> <p>072619-5</p> <p>Project: ........ (04/17)</p>
