SECTION 07200
SPRAY POLYURETHANE FOAM INSULATION

PART 1 – GENERAL

1.01 RELATED DOCUMENTS

A. The drawings and provisions of the General Conditions, Supplementary Conditions, and the Sections included under Division 1, General Requirements, are included as a part of this Section as though bound herein.


1.02 SUMMARY

A. Provide labor, materials, and equipment necessary to spray-apply polyurethane foam insulation an water repellent treatment for cavity wall CMU throughout the Project.


1.03 SUBMITTALS

A. Submit manufacturer’s technical product data of material intended for use, including specifications, installation instructions, material safety data sheets, and general recommendations.

B. Submit an installer’s certification or recommendation letter from the spray polyurethane foam material manufacturer.


1.04 PROJECT CONDITIONS

A. Substrate: Proceed with spray polyurethane foam application only after substrate construction, penetration work, and related welding and other hot work has been completed. Verify that mortar has cured sufficiently and masonry substrate is dry by checking surface for moisture with Moisture Detection Paper (MDP) strips.

B. Weather Limitations: Do not install spray polyurethane foam during precipitation or when precipitation is imminent. Do not install when the ambient temperature is less than 50&Mac176;F without specific authorization of the manufacturer. Do not install when the ambient humidity exceeds the manufacturer’s limits.


1.05 QUALITY ASSURANCE

A. Installer shall be a firm which has had at least 3 years of successful experience in application of spray polyurethane foam products.


B. Installer will provide equipment to spray-apply polyurethane foam including, but not limited to, high pressure plural component proportioning pump, heated hoses of suitable length, spray gun, drum pumps or other material feeding system, and other ancillary equipment necessary for the Project.

C. Test application: Prior to start of work, installer will spray-apply an area of approximately 100 square feet at the specified thickness as directed by Architect for the purpose of demonstrating visual and physical effects. Proceed with work only after Architect’s acceptance of test application.

PART 2 – PRODUCTS

2.01 MATERIALS

A. Spray polyurethane foam shall be Incylthane 2000 manufactured by PolyMaster, Inc., Knoxville, TN. Spray polyurethane foam shall have the following physical properties:

B. Products of other manufacturers will be considered for acceptance provided they equal or exceed the material requirements and functional qualities of the specified product. Requests for Architect’s approval and complete technical data for evaluation must be received at least 10 days prior to bid due date. Additional approved manufacturers will be issued by Addendum.


2.02 MISCELLANEOUS MATERIALS

A. Foam Repair Kit: Handi-Foam 2-part Quick-Cure manufactured by Fomo Products, Inc., Norton, OH.

B. Mineral Wool: Delta Safing Mineral Wool Board, 4 lb./cu. Ft. density, manufactured by Rock Wool Manufacturing Co., Leeds, AL.

C. Moisture Detection Paper (MDP) Strips: MDP Strips manufactured by North Carolina Foam Industries, Mount Airy, NC.


PART 3 – EXECUTION

3.01 PREPARATION

A. Clean masonry substrate of substances which would interfere with the adhesion of the spray polyurethane foam.

B. Fill voids between masonry and structural steel with mineral wool.

C. Mask adjacent materials as needed to prevent overspray.

D. Test substrate with Moisture Detection Paper (MDP) strips to affirm that the substrate is dry.


3.02 APPLICATION

A. Apply spray polyurethane foam directly to the masonry block in accordance to the manufacturer’s installation instructions. All surfaces to be sprayed with foam must be free of all forms of moisture and ice. Surfaces can be checked with NCFI’s MDP (Moisture Detection Paper) strips prior to and during foam application.

B. Do not apply spray polyurethane foam during inclement weather or when ambient temperature and humidity are outside the ranges prescribed by the manufacturer.

C. Apply the spray polyurethane foam to an average thickness of _____ inches with a minimum thickness of _____ inches. Apply the full thickness in any given area the same day.

Note to Specifier: Base average thickness on the R-value requirements (1" = R-7.0). Specify minimum thickness as average thickness less _ inch of average thickness as in table below.

Table 1: R-Values at Specified Thicknesses

D. Shield the spray polyurethane foam from interior exposure with an approved thermal barrier.
E. Remove overspray from adjacent surfaces.


3.03 REPAIR TECHNIQUES

A. Where damage occurs which violates the spray foam’s air and moisture seal, repair as needed using the specified spray polyurethane material or the specified foam repair kit material.

END OF SECTION 07200

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