ASTM D5469-00(2005)
(Guide)Standard Guide for Application of New Spray Applied Polyurethane Foam and Coated Roofing Systems
Standard Guide for Application of New Spray Applied Polyurethane Foam and Coated Roofing Systems
SIGNIFICANCE AND USE
This guide outlines general procedures and precautions necessary for correct and safe application of spray applied polyurethane foam roofing systems.
This guide is not all-inclusive; this guide is intended only to supplement detailed instructions from manufacturers and safety requirements established by law.
Refer to Polyurethane Foam Contractors Alliance AY-104 and NRCA Spray Polyurethane Foam-Based Manual for industry guidelines.
SCOPE
1.1 This guide covers the application of new roofing systems consisting of spray applied polyurethane foam insulation, elastomeric protective coatings, and optional mineral granules. This guide does not apply to retrofit or remedial applications.
1.2 Design criteria associated with the installation of spray in place polyurethane foam are beyond the scope of this specification.
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
General Information
Relations
Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Please contact ASTM International (www.astm.org) for the latest information.
Designation:D5469 −00 (Reapproved 2005)
Standard Guide for
Application of New Spray Applied Polyurethane Foam and
Coated Roofing Systems
This standard is issued under the fixed designation D5469; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope D4442 Test Methods for Direct Moisture Content Measure-
ment of Wood and Wood-Base Materials
1.1 This guide covers the application of new roofing sys-
2.2 Other Standard:
tems consisting of spray applied polyurethane foam insulation,
SSPC SP-6 Steel Structures Painting Council
elastomeric protective coatings, and optional mineral granules.
2.3 Spray Polyurethane Foam Alliance Documents:
This guide does not apply to retrofit or remedial applications.
AY-102 Guide for Selection of Protective Coatings Over
1.2 Design criteria associated with the installation of spray
Spray Polyurethane Foam Roofing Systems
in place polyurethane foam are beyond the scope of this
AY-104 SprayPolyurethaneFoamRoofingSystemsforNew
specification.
and Remedial Roofing
1.3 The values stated in SI units are to be regarded as the
AY-118 Moisture Vapor Transmission
standard. The values given in parentheses are for information
NRCA Roofing and Waterproofing Manual, Spray Polyure-
only.
thane Foam-Based Roofing Manual
NRCA/SPFAQuality Control Guidelines for theApplication
1.4 This standard does not purport to address all of the
of Spray Polyurethane Foam Roofing
safety concerns, if any, associated with its use. It is the
NRCA/SPFA Manual for Inspection and Maintenance of
responsibility of the user of this standard to establish appro-
Spray Polyurethane Foam-Based Roof Systems, A Guide
priate safety and health practices and determine the applica-
for Building Owners
bility of regulatory limitations prior to use.
2.4 Other Documents:
2. Referenced Documents
Underwriters Laboratories, Roofing Materials and Systems
2 6
2.1 ASTM Standards: Directory
C1029 Specification for Spray-Applied Rigid Cellular Poly- FactoryMutualResearchCorporation, LossPreventionData
urethane Thermal Insulation Sheets 1–28
D451 Test Method for Sieve Analysis of Granular Mineral Alliance for the Polyurethane IndustryAX119 Guide for the
Surfacing For Asphalt Roofing Products Safe Handling and Use of Polyurethane and Polyisocya-
D1079 Terminology Relating to Roofing and Waterproofing nurate Foam Systems
D1621 Test Method for Compressive Properties of Rigid
NOTE 1—Details: Numerous details are found in the referenced
Cellular Plastics
documents, in foam and coating manufacturers literature, and from other
D1622 Test Method for Apparent Density of Rigid Cellular
sources. These details are to be considered general in nature. They should
not be used without modification to allow for movement between the
Plastics
building, roofing, roof top equipment, and roof drainage systems.
D2856 Test Method for Open-Cell Content of Rigid Cellular
Plastics by the Air Pycnometer (Withdrawn 2006)
3. Terminology
3.1 Definitions—Definitions are in accordance with Termi-
This guide is under the jurisdiction of ASTM Committee D08 on Roofing and
nology D1079.
Waterproofing and is the direct responsibility of Subcommittee D08.06 on Spray
Polyurethane Foam Roof Systems.
Current edition approved May 1, 2005. Published May 2005. Originally
approved in 1993. Last previous edition approved in 2000 as D5469 – 00. DOI: Available from Society for Protective Coatings (SSPC), 40 24th St., 6th Floor,
10.1520/D5469-00R05. Pittsburgh, PA 15222-4656.
2 5
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Available from Spray Polyurethane Foam Alliance, 1300 Wilson Boulevard,
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Suite 800, Arlington, VA 22209.
Standards volume information, refer to the standard’s Document Summary page on Available from Underwriters Laboratories (UL), Corporate Progress, 333
the ASTM website. Pfingsten Rd., Northbrook, IL 60062.
3 7
The last approved version of this historical standard is referenced on AvailablefromFactoryMutualResearchCorporation,1151Boston-Providence
www.astm.org. Tpke., Norwood, MA 02062.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Please contact ASTM International (www.astm.org) for the latest information.
D5469−00 (2005)
3.2 Definitions of Terms Specific to This Standard: undercuts (upper surface of foam overhangs a lower surface)
3.2.1 Figs. 1-6 show the various types of polyurethane foam and usually accompanied by pinholes.
surfaces.
4. Significance and Use
3.2.2 coarse orange peel surface—a surface of spray ap-
plied polyurethane foam that is slightly rough, having irregu-
4.1 This guide outlines general procedures and precautions
larities that form obtuse angles with the plane of the surface. necessary for correct and safe application of spray applied
polyurethane foam roofing systems.
3.2.3 core samples—cylindrical sections of approximately
50 to 75 mm (2 to 3 in.) diameter. They shall be cut using a
4.2 This guide is not all-inclusive; this guide is intended
roundmetaltemplateorcoringtool,andtheyshallextendfrom
only to supplement detailed instructions from manufacturers
surface down to substrate.
and safety requirements established by law.
3.2.4 lift—a single application of spray applied polyure-
4.3 Refer to Polyurethane Foam Contractors Alliance AY-
thane foam.
104 and NRCA Spray Polyurethane Foam-Based Manual for
3.2.5 lightweight or insulating concrete fill— concrete made industry guidelines.
with or without aggregate additions to portland cement, water,
5. Substrate Requirements
and air to form a hardened material which, when oven dried,
3 3
will have a unit weight of 800 kg/m (50 lb/ft ) or less. 5.1 General Requirements:
5.1.1 Application shall conform to codes having jurisdic-
3.2.6 orange peel surface—a surface of spray applied poly-
tion.
urethane foam that is relatively smooth, but has a slightly
5.1.2 Allsubstratesshallbecleanandfreeofmoisture,dust,
rippled or dimpled appearance.
oil, grease, and release agents or other contaminants.
3.2.7 popcorn surface—a surface of spray applied polyure-
5.1.3 If a vapor retarder is specified, it should be installed in
thane foam that is extremely rough, having irregularities that
accordance with instructions of the vapor retarder manufac-
form angles which are perpendicular to the plane of the
turer and be compatible with the spray applied polyurethane
surface.
foam and substrate being covered. Refer to SPI/PFCD docu-
3.2.8 verge of popcorn surface—a surface of spray applied
ment AY-118.
polyurethane foam that is moderately rough, but does not
5.1.4 If a primer is specified or required, it shall be installed
exhibit sharp angles perpendicular to the plane of the surface.
toacleansurfaceinaccordancewiththeprimermanufacturer’s
instructions. The primer must be suitable for the substrate, be
3.2.9 slit samples—crescent-shaped samples approximately
25 mm (1 in.) long and 12.5 mm ( ⁄2 in.) in depth. They are able to meet service temperature requirements, be compatible
with the spray applied polyurethane foam, and acceptable to
used to check coating surface quality and coating adhesion and
thickness. the foam manufacturer.
3.2.10 smooth surface—a surface of spray applied polyure-
thane foam that is relatively smooth.
3.2.11 tree bark surface—a surface of spray applied poly-
urethane foam that is extremely rough and irregular, having
FIG. 1 Polyurethane Foam Texture—Smooth
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Please contact ASTM International (www.astm.org) for the latest information.
D5469−00 (2005)
FIG. 2 Polyurethane Foam Texture—Orange Peel
FIG. 3 Polyurethane Foam Texture—Coarse Orange Peel
5.2 Metal: 5.2.2.1 Ferrous Metal— Sandblast iron and steel surfaces
5.2.1 MetaldecksshallconformtorequirementsoftheSteel
which are not primed, shop painted, or otherwise protected in
8 9
Deck Institute, American Iron and Steel Institute (AISI),
accordance with SSPC SP-6. Remove loose rust and unsound
American Society of Civil Engineers (ASCE), 7-88 and
primer from shop-primed iron and steel surfaces. The sand-
Factory Mutual Research Corporation (FMRC).
blasted area shall be primed the same day.
5.2.2 Surface Preparation:
5.2.2.2 Non-Ferrous Metal—Cleanandprimeallsurfacesas
recommended by primer and foam manufacturer.
Available from Steel Deck Institute (SDI), PO Box 25, Fox River Grove, IL
5.2.2.3 Fluted metal decks shall have flutes filled, covered,
60021-0025.
9 or taped with materials and procedures approved by the
Available from American Iron and Steel Institute (AISI), 1140 Connecticut
Ave., Suite 705, Washington, DC 20036. manufacturer of the polyurethane foam, prior to spray applied
Available fromAmerican Society of Civil Engineers (ASCE), 1801Alexander
polyurethane foam application.
Bell Dr., Reston, VA 20191.
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Please contact ASTM International (www.astm.org) for the latest information.
D5469−00 (2005)
FIG. 4 Polyurethane Foam Texture—Rippling Verge of Popcorn
FIG. 5 Polyurethane Foam Texture—Popcorn
5.2.3 Lightweight corrugated roofs, which are secured to 5.4.1 Wood shall contain no more than 18 % moisture, as
meet industry standards, shall meet the surface requirements in measured in accordance with Test Methods D4442.
5.2.1 and 5.2.2.
5.4.2 Wood surfaces shall be primed with exterior grade
primer as recommended by the primer and polyurethane foam
5.3 Concrete:
manufacturers.
5.3.1 Alljointsandcracksthatexceed6mm( ⁄4in.)shallbe
filled, covered, or taped with materials and procedures ap-
5.4.3 Wood joints in excess of 6 mm ( ⁄4 in.) shall be taped
proved by the manufacturer of the polyurethane foam, prior to
or filled with materials and procedures approved by the
application of spray applied polyurethane foam.
manufacturer of the polyurethane foam.
5.3.2 Primer, if required, shall be as recommended by the
5.4.4 Wood plank must be overlaid with a material, ap-
primer or polyurethane foam manufacturer.
proved by the polyurethane foam manufacturer and secured by
5.3.3 Sprayed polyurethane foam is not recommended di-
methods proven to meet the wind resistance requirements of
rectly over lightweight nonstructural concretes.
FMRC, Underwriters Laboratory (UL), and local building
5.4 Wood: codes.
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Please contact ASTM International (www.astm.org) for the latest information.
D5469−00 (2005)
FIG. 6 Polyurethane Foam Texture—Tree Bark
5.5 Gypsum Board: 9. Polyurethane Foam Material and Application
5.5.1 Boards shall be firmly butted together and mechani- Requirements
cally fastened. Joints exceeding 6 mm ( ⁄4 in.) shall be filled or
9.1 The spray applied polyurethane foam shall meet the
taped with materials and procedures approved by the manu-
physical requirements of Specification C1029 Type III.
facturer of the polyurethane foam.
9.2 The spray applied polyurethane foam lifts must be
5.5.2 Wet gypsum is not acceptable (see 9.10).
applied in a thickness of 12.5 mm ( ⁄2 in.) or greater. The foam
5.5.3 Cleaning by power brooming is not permitted.
manufacturer must be consulted if the foam is to be applied in
lifts greater than 37 mm (1 ⁄2 in.).
6. Slope
9.3 The total spray applied polyurethane foam thickness
6.1 The finished roofing system shall be sloped a minimum
shall be a minimum of one in. (or more if specified). The total
of 6 mm/m ( ⁄4 in./ft) to minimize ponding.
thickness of the spray applied polyurethane foam shall be as
specified+6mm( ⁄4 – 0 in.), except where variations are
7. Equipment
required to ensure drainage or to complete a tapered edge.
7.1 The spray applied polyurethane foam shall be metered
9.4 Areastobebuiltupinordertopreventpondingaretobe
and mixed through equipment capable of providing a ratio of
filled in with spray applied polyurethane foam before the
equal parts of “A” (isocyanate) component and “B” (polyol)
specified thickness is applied to the entire roof surface.
component, by volume to within an accuracy of 62%.
9.5 At parapet walls, building junctions, and penetrations,
7.2 Spray applied polyurethane foam ratio control shall be
the spray applied polyurethane foam shall be terminated a
monitored by equipment pressure gages, which indicate con-
minimum of 100 mm (4 in.) above the roof line. The coating
stant pressure, and by uniform color of the spray applied
system shall be carried an additional 100 mm (4 in.) above the
polyurethane foam.
foam.Foamedinplacecantsshallbesmoothandcontinuousto
7.3 Spray applied polyurethane foam equipment shall pro-
allow positive drainage.
vide temperature control of the “A” component and “B”
9.6 The final configuration of the spray applied polyure-
component to within an accuracy of 2.8°C (65°F).
thane foam surface shall not be excessively rough. “Verge of
7.4 Spray equipment used to apply coating shall be in
popcorn” spray polyurethane foam surfaces are acceptable if
accordance with the coating manufacturer’s recommendations.
sufficient additional coats are applied to ensure a uniform
coating at the dry film thickness specified.“ Popcorn” or “tree
8. Safety Requirements
bark”surfacesarenotacceptable.Theseareasshallberemoved
8.1 All handling, storage, applications, and end use safety
and refoamed to an acceptable surface.
precautions shall be as outlined by the material manufacturers
9.7 Any damage or defects to the spray applied polyure-
and SPI Polyurethane Division Technical Bulletin AX119.
thane foam surface shall be repaired prior to the protective
8.2 Refer to appropriate Material Safety Data Sheets
coating application.
(MSDS) for additional safety information.
9.8 Spray applied polyurethane foam shall not be applied
8.3 Conform to local codes and ordinances. when the roof deck surface temperature is below 10°C (50°F),
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Please contact ASTM International (www.astm.org) for the latest information.
D5469−00 (2005)
as measured by a surface pyrometer, unless low temperature wher
...
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