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1998-06-10
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SECTION 07211
SPRAYED FOAM INSULATION FOR BUILDING ENVELOPE
NOTE ** Foam Enterprises sprayed polyurethane foam
insulation for building envelope insulation.
NOTE **
NOTE ** This section is based on the products of Foam
Enterprises, Inc., which is located at:
NOTE ** 13630 Water Tower Circle
NOTE ** Minneapolis, MN 55441
NOTE ** Tel: (800) 888-3342
NOTE ** Fax: (612) 559-0945
NOTE **
NOTE ** This section covers the foam insulation and vapor
retarder, plus optional thermal barrier (fire
resistive) coating or other material. This section
should not be used for cold storage facility
insulation -- use Section 07212 instead. For
sprayed foam roofing, use Section 07570.
NOTE **
NOTE ** This specification is based on the following
publication of the Society of the Plastics
Industry, Inc., Spray Polyurethane Foam Division:
NOTE **
NOTE ** "Spray Polyurethane Foam Systems for Building
Envelope Insulation and Air Seal; copyright 1994.
NOTE **
NOTE ** SECTION 07211 - SPRAYED FOAM INSULATION FOR
BUILDING ENVELOPE, Copyright 1997, The Architect's
Catalog, Inc.
PART 1 GENERAL
1.1 SECTION INCLUDES
NOTE ** Edit items below as required for project.
A. Sprayed polyurethane foam insulation.
B. Vapor retarder.
C. Thermal barrier (fire resistive) coating.
1.2 RELATED SECTIONS
NOTE ** Delete any sections below not relevant to this
project; add others as required.
A. Section 07260 - Vapor Retarders: Separate sheet vapor
retarders.
NOTE ** Roof Decks: This section should not be used to
specify foam insulation on the exterior side of a
roof -- use a true foam roofing specification for
that.
B. Section 07570 - Coated Foamed Roofing: Spray
polyurethane foam on exterior side of roof decks.
C. Section 09260 - Gypsum Board Assemblies: Gypsum board
for thermal barrier covering foam insulation.
D. Division 15 - Mechanical: Plumbing and HVAC components
penetrating insulation.
E. Division 16 - Electrical: Electrical components
penetrating insulation.
1.3 REFERENCES
NOTE ** Add any references to the list below that are
included in text you have added to the section.
A. ASTM D 1621 - Standard Test Method for Compressive
Properties of Rigid Cellular Plastics.
B. ASTM D 1622 - Standard Test Method for Apparent Density
of Rigid Cellular Plastics.
C. ASTM D 2856 - Standard Test Method for Open-Cell Content
of Rigid Cellular Plastics by the Air Pycnometer.
D. ASTM E 84 - Standard Test Method for Surface Burning
Characteristics of Building Materials.
E. ASTM E 96 - Standard Test Methods for Water Vapor
Transmission of Materials.
F. SPI Bulletin AX-119 - MDI-Based Polyurethane Foam
Systems: Guidelines for Safe Handling and Disposal;
Society of the Plastics Industry, Inc., Polyurethane
Division.
1.4 SUBMITTALS
NOTE ** Delete types of submittals not required.
Coordinate submittal statements with other
provisions in the section.
A. Submit under provisions of Section 01300.
B. Product Data: Manufacturer's data on products to be
installed.
1. Application or installation instructions.
2. Listing, classification, and approval certifications.
3. Safety and handling instructions for storage,
handling and use of the materials.
C. Product Certification: SPI/SPDF accreditation test for
materials.
D. Certifications: If manufacturer's published data sheets
do not indicate compliance with all specification
requirements, provide letter of certification that all
products comply with the specification requirements;
include primers (if required), foam and coatings.
E. Shop Drawings: Show materials and details of fabrication
of sheet metal, accessories, or other fabricated items.
F. Qualification Statements:
1. Manufacturer qualifications.
2. Installer qualifications.
3. Independent inspector qualifications.
G. Applicator's Field Quality Control Procedures: Written
description of procedures to be utilized to insure proper
preparation and installation of foam and coatings, detail
work and follow-up inspection.
H. Maintenance Data: Manufacturers' recommended protection,
cleaning, and repair procedures, including recommended
frequency of inspection.
1.5 QUALITY ASSURANCE
A. Installer Qualifications: A firm with experience
installing insulation systems of the type specified.
NOTE ** Delete the following paragraph if not required.
NOTE **
NOTE ** The Society of the Plastics Industry Spray
Polyurethane Foam Division conducts an
Accreditation Program for improvement of quality in
the application of spray polyurethane foams and
coatings.
NOTE **
NOTE ** The list of accredited individuals and firms is
available from SPFD.
1. Show contractor/supplier level accreditation by SPI
SPFD Accreditation Program.
2. Approved or certified by the foam manufacturer as
qualified to install the specified system.
3. Provide information concerning projects similar in
nature to the one proposed including location and
person to be contacted.
1.6 DELIVERY, STORAGE, AND HANDLING
A. Provide materials packaged in the manufacturer's
original, tightly sealed containers or unopened packages,
clearly labelled with the manufacturer's name, product
identification, safety information, and batch or lot
numbers where appropriate. Where materials are covered
by a referenced specification, the labels shall bear the
specification number, type and class, as applicable.
B. Store materials out of the weather and out of direct
sunlight in locations where the temperatures are within
the limits specified by the manufacturer.
1.7 PROJECT CONDITIONS
NOTE ** Normally safety procedures are the responsibility
of the contractor. For more information about
polyurethane foam see SPI Bulletin AX-119,
"MDI-Based Polyurethane Foam Systems: Guidelines
for Safe Handling and Disposal."
A. Comply with the manufacturer's instructions and
recommendations as to handling and safety procedures.
PART 2 PRODUCTS
2.1 MANUFACTURERS
A. Provide products of Foam Enterprises, Inc., 13630 Water
Tower Circle, Minneapolis, MN 55441. ASD. Tel: (800) 888-
3342. Fax: (612) 559-0945.
B. Substitutions are not acceptable.
NOTE ** Delete paragraph above or below. Edit Section
Number as required for project.
C. Submit requests for substitutions in accordance with
provisions of Section 01600.
2.2 MATERIALS
NOTE ** Most published data is run on laboratory produced
samples, not in-place material. The thickness of
polyurethane foam sprayed, number of passes,
temperature of substrate, ambient temperatures,
etc., all affect properties. The following values
are for Foam Enterprises' product in-place.
A. Foam: Sprayed-in-place two-component closed-cell
polyurethane made by combining an isocyanate (A)
component with a polyol (B) component, with the following
physical characteristics:
1. Density in place, when tested in accordance with ASTM
D 1622: 1.7 to 1.8 lb/cu ft (27 to 29 kg/cu m).
2. Compressive Strength, when tested in accordance with
ASTM D 1621: 20 to 30 psi (1.4 to 2.1 Pa), minimum.
3. Closed Cell Content, when tested in accordance with
ASTM D 2856: 87 percent, minimum.
4. R-value, aged: 6.8.
NOTE ** From a fire safety standpoint, polyurethane foams
can be used safely. It is important, however, that
all persons associated with the design,
fabrication, storage and installation understand
the materials and environments involved.
NOTE **
NOTE ** Polyurethane foam insulation is combustible and
should be treated as such. Flame spread ratings
provided for polyurethane products using small
scale tests are not intended to reflect the hazards
presented by this or any other materials under
actual fire conditions. Care must be taken to
ensure that the foam is not exposed to heat or
flame.
5. Flame Spread Index, when tested in accordance with
ASTM E 84: Less than 75.
6. Smoke Developed Index, when tested in accordance with
ASTM E 84: Less than 450.
B. Primers: As recommended by the manufacturer of the spray
foam materials specified.
NOTE ** The following paragraph is for a vapor retarder
coating to be applied directly to the foam. If the
foam is to be covered by other construction, such
as gypsum drywall, other types of vapor barriers
can be used -- specify them in another section.
C. Vapor Retarder: Fluid-applied coating, Lion Oil Co.,
Nokorde 706M; permeability of 0.01 perm or less, when
tested in accordance with ASTM E 96, Method D.
NOTE ** A thermal barrier (fire resistive) is almost always
required over polyurethane foam exposed on the
interior of the building. Typically, the minimum
thermal barrier is a material that constitutes 15
minutes of fire protection for the foam. Materials
that have been used include sprayed cementitious or
fiber material (such as fireproofing) and gypsum
board.
NOTE **
NOTE ** Delete the following paragraph if the thermal
barrier is not a coating and is specified in
another section.
D. Thermal Barrier: Sprayed coating, W.R. Grace Zonolite
3306 or International Cellulose Ure-K; applied for fire
resistance rating of 15 minutes.
PART 3 EXECUTION
3.1 GENERAL
A. Comply with the instructions and recommendations of the
foam and coatings manufacturers.
B. Familiarize all installers with correct and safe
application and handling procedures:
1. See SPI Bulletin AX-119, "MDI-Based Polyurethane Foam
Systems: Guidelines for Safe Handling and Disposal."
2. Refer to appropriate Materials Safety Data Sheets
(MSDS) for additional safety information.
3.2 PREPARATION
A. Primed Steel: If the surface is free of loose scale,
rust, weathered or chalking paint, it can be cleaned
using vacuum equipment and hand or power tools to remove
loose dirt.
B. Previously Painted Steel: Clean using hand or power
tools to remove loose scale and dirt.
C. Galvanized Steel and Unpainted Steel: Clean as
recommended by primer manufacturer.
D. New Concrete: Allow to cure for twenty-eight (28) days
prior to the application of primer or foam.
E. Previously Painted Surfaces: Remove all loose paint.
F. Remove loose dirt, dust and debris by using compressed
air, vacuum equipment or brooming. Remove oil, grease,
form release agents, laitance, and other contaminants
using proper cleaning solutions. Do not wash wood or
porous materials with water.
G. Grout, tape, or calk all joint openings that exceed 1/4
inch (6 mm) in width.
H. Prime all metal as recommended by manufacturer.
I. Prime all concrete surfaces.
3.3 FOAM APPLICATION
A. Do not begin application of foam until all preparation
requirements have been completed.
B. Do not apply foam when the temperature is below or the
humidity is above that specified by the manufacturer for
ambient air and substrate.
C. Apply foam in accordance with the manufacturer's
specifications and instructions.
D. Apply foam to a ____ inch (____ mm) thickness, with pass
thickness of 1/2 inch (13 mm) to 1-1/2 inches (38 mm).
Complete the full thickness of foam in any area prior to
the end of each day.
NOTE ** The following article is for vapor retarder
coating. Delete if a sheet-type vapor retarder is
used.
3.4 VAPOR RETARDER INSTALLATION
A. Apply vapor retarder in accordance with building code
requirements and the manufacturer's specifications and
instructions.
B. Apply vapor retarder to the entire surface of the foam in
a continuous film across corners and junctions.
NOTE ** Delete the following article if the thermal barrier
is not a spray-applied coating.
3.5 THERMAL BARRIER APPLICATION
A. Allow vapor retarder to cure before the thermal barrier
coating is applied. Repair damage and defects to the
vapor retarder prior to the application of the thermal
barrier.
B. Apply thermal barrier over entire surface of foam.
C. Allow thermal barrier to cure. Inspect for defects and
repair defects prior to subsequent coats.
END OF SECTION