07 56 00 Fluid Applied Roofing.pdf

DIVISION 8 – THERMAL AND MOISTURE PROTECTION

Section 07 56 00 – Fluid-Applied Roofing

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1. GENERAL

1.1 SECTION INCLUDES

A. Fluid-applied roofing materials

B. Accessories.

1.2 REFERENCE STANDARDS

A. ASTM D412 – Standard Test Methods for Vulcanized Rubber and Thermoplastic Elastomers—Tension; 2016.

B. ASTM D2240 – Standard Test Methods for Rubber Property—Durometer Hardness;

2005 (Reapproved 2010).

C. CRRC-1 – CRRC-1 Roof Product Rating Program Manual; 2022.

1.3 SUBMITTALS

A. Product Data: Provide manufacturer’s data for membrane and accessory materials.

B. Shop Drawings: Indicate special joint or termination conditions and conditions of interface with other materials.

C. Certificate: Certify that products meet or exceed specified requirements.

D. Manufacturer’s Installation Instructions: Include standard installation instructions, acceptable installation temperature range, and procedures for unusual perimeter conditions.

E. Field Quality Control Test Report.

F. Manufacturer’s qualification statement.

G. Installer’s qualification statement.

H. Warranty: Submit manufacturer warranty and ensure forms have been completed in Using Agency’s name and registered with manufacturer.

1.4 QUALITY ASSURANCE

A. Manufacturer Qualifications: Company specializing in the manufacture of fluid-applied roofing or waterproofing systems.

1. Three years’ documented experience manufacturing type of product specified.

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B. Installer Qualifications: Company specializing in installation of fluid-applied roofing or waterproofing systems.

1. Approved by roofing manufacturer.

2. Five years of documented experience.

1.5 MOCK-UPS

A. Construct mock-up consisting of at least 100 sq. ft. of specified roofing materials, including internal and external corners, base flashings, expansion joints, and counterflashings similar to those included as part of this work.

1. Located where directed.

2. Mock-up may remain as part of work.

1.6 DELIVERY, STORAGE, AND HANDLING

A. Deliver materials in manufacturer’s original containers, dry and undamaged, with seals and labels intact.

B. Store materials in weather protected environment, clear of ground and moisture.

C. Ensure storage and staging of materials does not exceed static and dynamic load-bearing capacities of roof decking.

1.7 FIELD CONDITIONS

A. Maintain ambient temperatures above 40 degrees F for 24 hours before and during application and until cured.

B. Schedule applications so that no partially completed sections of roof are left exposed at end of workday.

1.8 WARRANTY

A. Provide 20-year manufacturer full labor and material warranty that roofing will not crack, split, or flake and will not fail to resist penetration of water.

2. PRODUCTS

2.1 MANUFACTURERS

A. Fluid-Applied Roofing:

1. GACO: GacoFlex 4200 coating.

2. Carlisle: X-TENDA Coat XTRA Silicone Coating System: www.carlislesyntec.com

3. GAF; HydroStop PremiumCoat System: www.gaf.com/#sle.

4. Huntsman Building Solutions; THERMO-SIL Silicone Coating – System:

www.huntsmanbuildingsolutions.com/#sle.

http://www.carlislesyntec.com/ http://www.gaf.com/#sle http://www.huntsmanbuildingsolutions.com/#sle

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2.2 MATERIALS

A. Fluid-Applied Roofing: White, cold-applied; single-component; silicone elastomer, approved by manufacturer for permanent exposure to weather and sunlight.

2.3 ACCESSORIES

A. Flexible Flashing Sheet: Neoprene or other elastic type sheets approved by roofing manufacturer.

B. Flexible protective walk sheets to be adhered to roof and approved by roofing manufacturer.

C. Surface Primer Over Roof Substrate for Adhesion of Membrane: Low VOC acrylic primer for application over roof substrates.

1. Roof Membrane Substrate: Includes galvanized metal, plywood, concrete, aluminum with Kynar finish, or EPDM as indicated on drawings.

3. EXECUTION

3.1 EXAMINATION

A. Verify existing conditions prior to starting this work.

B. Verify substrate surfaces are free of frozen matter, dampness, loose particles, cracks, pits, projections, penetrations, or foreign matter detrimental to adhesion or application of roofing system.

C. Verify that roof openings, curbs, and items that penetrate surfaces to receive roofing materials are securely and properly installed.

3.2 PREPARATION

A. Clean and prepare surfaces to receive roofing in accordance with manufacturer's instructions and recommendations.

B. Seal cracks and non-moving open joints less than 1/2 inch wide with sealant using methods recommended by roofing and sealant manufacturers. Do not seal expansion joints or moving joints of any width.

C. Install cant strips at inside corners, where indicated and where required by roofing manufacturer.

D. Protect adjacent surfaces not designated to receive roofing.

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3.3 INSTALLATION

A. Install fluid-applied roofing in accordance with manufacturer's written instructions/ recommendations and to specified minimum thickness.

B. Apply roofing materials to surfaces that are acceptable to manufacturer.

C. Apply primer or surface conditioner at a rate recommended by manufacturer, and protect surface conditioner from rain or frost until dry.

D. Installations Over Sealant-Filled Joints: Install an extra coating of roofing material over joints at least 6 inches on each side of joint.

E. Joint Cover Assembly: Install at expansion joints, moving joints 1/2 inch wide or wider, and joints between horizontal and vertical surfaces.

1. Use flexible flashing sheet wide enough to extend 6 inches on both sides of joint with a loop of sheet extended down into the joint to a depth at least the width of the joint.

2. Embed sheet in one coat of fluid-applied roofing material.

3. Before installing the remainder of the roofing material, install a compressible joint sealer backer rod into joint above loop to prevent roofing material from filling loop.

F. Penetrations: Unless otherwise indicated on drawings, or recommended by roofing manufacturer, seal flexible flashing sheet around penetrations and to roofing substrate prior to installation of roofing material, embedding flashing sheet in one coat of roofing material.

G. Applying to Vertical Surfaces: Extend fluid-applied roofing material at least 6 inches above horizontal roofing surfaces.

H. Embedded Flexible Flashing Sheet: Apply full thickness of roofing material over exposed flashing sheet.

I. Roof Drains: Unless otherwise recommended by roofing manufacturer, set drain flange in one coating of roofing material and extend a full thickness of roofing material onto drain clamp flange, with adequate coating of roofing material to ensure waterproof seal of clamp ring.

J. Apply extra thickness of roofing material at corners, intersections, and angles, when recommended by the roofing manufacturer.

K. Install counterflashing over exposed edges, where indicated on drawings.

3.4 FIELD QUALITY CONTROL

A. Upon completion of horizontal fluid-applied roofing material installation, install dam at perimeter of installation area in preparation for flood testing.

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B. Flood area to a minimum depth of 1 inch with clean water, and after 72 hours, inspect for leaks.

C. If leaking is found, remove water, repair leaking areas with new roofing materials as directed by the Owner, and repeat flood test. Repair damages to building related to roof test leakage.

D. When area is confirmed to be watertight, drain water and remove dam materials.

3.5 PROTECTION

A. Protect installed roofing and flashings from construction operations.

B. Where traffic must proceed over installed roofing materials, protect surfaces using durable materials acceptable to the roofing material manufacturer.

END 07 56 00