SECTION 07260
VAPOR RETARDERS
PART 1 GENERAL
1.01 SECTION INCLUDES
A. Vapor Barrier, to be installed under concrete slab-on-grade within buildings,
except as otherwise indicated.
B. Vapor Retarder, to be installed under concrete sidewalks and stair steps
adjacent to buildings, except as otherwise indicated.
1.02 RELATED SECTIONS
A. Section 02300 - Sitework for Buildings.
B. Section 02361 - Soil Treatment for Termite Control.
C. Section 03200 - Concrete Reinforcement:
Steel welded wire
reinforcement; reinforcing steel mat; chairs, bolsters, bar supports, and
spacers.
D. Section 03300 - Cast-in-Place Concrete: Concrete slabs on grade.
E. Section 09300 - Tile: Testing for moisture emission rate and alkalinity of
concrete substrate.
F. Section 09900 - Paints and Coatings: Testing for moisture emission rate
and alkalinity of concrete substrate.
1.03 PERFORMANCE REQUIREMENTS
A. Vapor Barrier:
1. Puncture Propagation Tear: 40 lb (178 N), when tested in accordance with
ASTM D 2582.
2. Permeance (Perm): Maximum 0.027 grains/hr-sq ft-in Hg (1.551 ng/Pa s
sq m), when tested in accordance with ASTM E 96.
3. Drop Dart: 1,900 g, when tested in accordance with ASTM D 1709.
4. Tensile Strength: 225 lb/3,846 psi (1000 N/26,515 kPa), when tested in
accordance ASTM D 882, 3 inch (76 mm) wide specimen.
5. Puncture Strength: 50 lb (222 N), when tested in accordance with ASTM D
4833.
6. Usable Temperature Range: Minus 40 to 170 degrees F (minus 40 to 77
degrees C).
B. Vapor Retarder:
1. Permeance (Perm): Maximum 0.30 grains/hr-sq ft-in Hg, when tested in
accordance with ASTM E 96.
1.04 SUBMITTALS
A. For submittal procedures, refer to Section 2 - General Terms and Conditions
and Section 3 - Supplemental Terms and Conditions.
B. Product Data: Manufacturer's data sheets on each product to be used,
including:
1. Preparation instructions and recommendations.
2. Storage and handling requirements and recommendations.
3. Installation methods and details.
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VAPOR RETARDERS
1.05 QUALITY ASSURANCE
A. Pre-installation Meeting: Convene a pre-installation meeting two weeks before
start of installation of reinforced vapor barriers. Require attendance of parties
directly affecting work of this section, including Contractor, Architect, and
installer. Review installation, protection, and coordination with other work.
1. Sequence work of this section with work specified in Section 02361.
B. Regulatory Requirements: Comply with the requirement of Florida Department
of Health and Rehabilitative Services (HRS0, Office of Radiation Control as
stated in “Radon-Resistant Construction Guidelines for Use in Florida”, latest
edition.
1.06 DELIVERY, STORAGE, AND HANDLING
A. Delivery: Deliver materials to site in manufacturer's original, unopened
containers and packaging, with labels clearly identifying product name and
manufacturer.
B. Storage:
1. Store products in manufacturer's unopened packaging until ready for
installation.
2. Store materials in a clean, dry area in accordance with manufacturer's
instructions.
C. Handling: Protect materials during handling and installation to prevent damage.
PART 2 PRODUCTS
2.01
MANUFACTURER
A. Vapor Barrier:
1. Reef Industries, Inc.: PO Box 750250; Houston, TX; Tel: 800-231-6074 or
713-507-4200; www.reefindustries.com.
2. Stego Industries LLC; San Juan Capistrano, CA; Tel. 877-464-7834;
www.stegoindustries.com.
3. W.R.
Meadows,
Inc.;
Hampshire,
IL;
Tel.
847-214-2100;
www.wrmeadows.com.
2.02 VAPOR BARRIER
A. Product:
1. Griffolyn Type-85, manufactured by Reef Industries, Inc.
2. Stego Wrap (15 mil) Vapor Barrier, manufactured by Stego Industries LLC.
3. Vapor-Mat (15 mil), manufactured by W.R. Meadows, Inc.
B. Material: High-density polyethylene; complying with ASTM E 1745, Class B.
C. Weight: 70-lb/1,000 sq ft (34.2 kg/100 sq m), when tested in accordance with
ASTM D 3776.
2.03 VAPOR RETARDER
A. Material: Single-ply polyethylene stated by manufacturer as suitable for
installation in contact with soil or granular fill under concrete slabs.
B. Thickness: 10 mil.
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07260 - 2 of 4
VAPOR RETARDERS
2.04 ACCESSORIES
A. General:
1. Ensure accessories intended for use in reinforced vapor barrier installation
conform to vapor barrier manufacturer’s recommendations.
B. Seam Tape: High-density polyethylene tape with pressure sensitive adhesive,
per manufacturer's recommendation; minimum width 4 inches.
C. Pipe Boots: Factory-fabricated pipe boots, or construct pipe boots from vapor
barrier material and pressure sensitive tape per manufacturer's instructions.
PART 3 EXECUTION
3.01 EXAMINATION
A. Examine surfaces and areas to receive vapor barriers. Notify Architect in writing
defects of work and other unsatisfactory site conditions that would cause
defective installation of vapor barriers. Do not begin installation until
unacceptable conditions have been corrected.
B. Verify site dimensions.
C. Ensure surface beneath vapor barrier is smooth with no sharp projections.
D. Commencement of work will imply acceptance of substrate.
3.02 INSTALLATION
A. General:
1. Install products in accordance with manufacturer's instructions and ASTM E
1643, as follows:
a. Install vapor barrier at all building floor areas to receive concrete slabon-grade.
b. Install vapor retarder under all concrete sidewalks and stair steps
located within 10 feet of building.
2. Install vapor barrier/vapor retarder continuously; ensure there are no
discontinuities in vapor barrier/vapor retarder at seams or penetrations.
3. Install vapor barrier/vapor retarder in largest practical widths.
4. Use manufacturer recommended tape to join sections of and seal
penetrations in vapor barrier/vapor retarder. Ensure vapor barrier/vapor
retarder surfaces to receive tape are clean and dry.
5. Immediately repair holes in vapor barrier/vapor retarder with self-adhesive
repair tape.
6. Seal around pipes and other penetrations in vapor barrier with pipe boots in
accordance with manufacturer's instructions.
B. Install vapor barrier/vapor retarder over entire area to receive concrete work, lap
edges 12 inches minimum and continuously seal with tape.
1. Install vapor barrier/vapor retarder with seams perpendicular to and lapped
in direction of concrete pour.
2. Turn edges up to 4 inches to top of slab.
3. Where expansion joints are indicated at adjacent vertical surfaces, extend
vapor barrier/vapor retarder beyond expansion joint filler and turn up to top
of slab.
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City of Miami Project No. B-30566A
07260 - 3 of 4
VAPOR RETARDERS
4.
Do not allow screed supports or other items to penetrate vapor
barrier/vapor retarder.
C. Continuously tape entire perimeter of reinforced vapor barrier to adjacent
surfaces; around all pipe penetrations; and vapor barrier membrane joints; to
seal and prevent vapor moisture penetration.
3.03 PROTECTION
A. Protect vapor barrier/vapor retarder from damage until permanent covering is in
place.
1. Repair punctures and tears in vapor barrier/vapor retarder using patches of
the material overlapping the puncture or tear a minimum of 12 inches. Seal
with tape.
B. Protect reinforced vapor barrier/vapor retarder from damage during installation
of reinforcing steel and utilities and during placement of granular materials or
concrete slab.
END OF SECTION
MELREESE GOLF TRAINING CENTER
City of Miami Project No. B-30566A
07260 - 4 of 4
VAPOR RETARDERS