Question 36 - 07 21 19 - Foamed-In-Place Insulation.pdf

Repair Military Working Dog Area - Building B649 155580BID

SECTION 07 21 19

FOAMED-IN-PLACE INSULATION

03/17

PART 1 GENERAL

1.1 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

ASTM INTERNATIONAL (ASTM)

ASTM C1029 (2015) Standard Specification for Spray-Applied Rigid Polyurethane Thermal Insulation

ASTM E84 (2016) Standard Test Method for Surface Burning Characteristics of Building Materials

ICC EVALUATION SERVICE, INC. (ICC-ES)

ICC-ES AC377 (2016) Acceptance Criteria for Spray-Applied Foam Plastic Insulation

NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)

NFPA 286 (2015) Standard Methods of Fire Tests for Evaluating Contribution of Wall and Ceiling Interior Finish to Room Fire Growth

1.2 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals not having a "G" designation are for Contractor Quality Control approval. The following shall be submitted in accordance with Section 01330

SUBMITTAL PROCEDURES:

SD-06 Test Reports

Evaluation Report ; G

For Spray Polyurethane Foam

ICC Evaluation Report ; G

For ignition Barrier

SD-07 Certificates

Applicator Qualifications ; G

SD-03 Product Data

Polyurethane Foam ; G

SECTION 07 21 19 Page 1 16 March 2023

Ignition Barrier ; G

SD-08 Manufacturer's Instructions

Equipment ; G

1.3 QUALITY ASSURANCE

Applicator Qualifications : An authorized representative trained and approved by manufacturer of spray foam.

Evaluation Report : For spray foam complying with ICC-ES AC377 ICC-ES.

PART 2 PRODUCTS

2.1 POLYURETHANE FOAM

Closed-Cell Spray Polyurethane Foam: ASTM C1029, Type II, minimum density of 2 lb/cu. ft. (24 kg/cu. m) <Insert density> and minimum aged R-value at 1-inch (25.4-mm) thickness of 6.2 deg F x h x sq. ft./Btu at 75 deg F (43 K x sq. m/W at 24 deg C).

2.1.1 Surface Burning Characteristics

As tested by qualified testing agency per ASTM E84and identified on label:

Flame Spread: 25 or less.

Smoke-Developed Index: 450 or less.

2.2 IGNITION BARRIER

Provide water-based, intumescent, ignition barrier coating approved by manufacturer of spray foam insulation complying with NFPA 286 and validated as Code-compliant alternative thermal barrier by ICC Evaluation Report in compliance with ICC-ES AC377 , Appendix X.

2.3 MISCELLANEOUS MATERIALS

2.3.1 Primer

As recommended by manufacturer, if required to ensure adhesion to substrate.

2.3.2 Sealant

Foamed-in-place Sealant: One- or two-component foam sealant conforming to ULC S710.1 or ULS S711.1 and the following:

Density: 1.5 to 2.0 pcf.

As tested by qualified testing agency per ASTM E84and identified on label:

Flame Spread: 25 or less.

Smoke-Developed Index: 450 or less.

2.4 EQUIPMENT

As recommended by manufacturer for application. Record equipment setting on project daily log.

SECTION 07 21 19 Page 2

PART 3 EXECUTION

3.1 EXAMINATION

Examine substrates, with Installer present, for compliance with requirements for maximum moisture content and other conditions affecting performance of the Work.

3.2 PREPARATION

Verify that substrates are clean, dry, and free of substances that are harmful to insulation.

Priming: Prime substrates where recommended by insulation manufacturer.

Apply primer to comply with insulation manufacturer's written instructions. Confine primers to areas to be insulated; do not allow spillage or migration onto adjoining surfaces.

3.3 INSTALLATION

Comply with insulation manufacturer's written instructions applicable to products and applications.

Spray insulation to envelop entire area to be insulated and fill voids.

Apply in multiple passes to not exceed maximum thicknesses recommended by manufacturer. Do not spray into rising foam.

Framed Construction: Install into cavities formed by framing members to achieve thickness indicated on Drawings.

Cavity Walls: Install into cavities to thickness indicated on Drawings to fully fill void.

Miscellaneous Voids: Apply according to manufacturer's written instructions.

3.4 IGNITION BARRIER

Apply spray-applied ignition barrier in accordance with manufacturer's written instructions and Evaluation Report.

3.5 PROTECTION

Protect installed insulation from damage due to harmful weather exposures, physical abuse, and other causes.

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SECTION 07 21 19 Page 3

2.4 EQUIPMENT