ASTM D3805-97(2003)e1
(Guide)Standard Guide for Application of Aluminum-Pigmented Asphalt Roof Coatings
Standard Guide for Application of Aluminum-Pigmented Asphalt Roof Coatings
SIGNIFICANCE AND USE
Asphalt-based, solvent-type, fibered or nonfibered, aluminum-pigmented roof coatings are used as a protective coating for solar reflection to prolong the life of roofing materials or where decorative qualities are desired.
Suitable application of aluminum-pigmented asphalt roof coatings is an important factor in achieving a successful long-term coating. Suitable application is, in part, dependent upon appropriate specifications to guide the work. This guide can be useful in facilitating development of an appropriate specification for surface preparation and application of the roof coating.
Designers/specifiers of coatings may use this guide in preparing the application portion of their specification. Contractors working directly for the building owner, may also use this guide.
This guide is not all-inclusive. Manufacturer’application instructions should be consulted and geographical “area practices” considered. Consult membrane manufacturer and coating manufacturer for acceptability of procedures and products.
SCOPE
1.1 This guide covers the application methods for Specification D 2824 Aluminum-Pigmented Asphalt Roof Coatings, Non-Fibered (Type I), Asbestos Fibered (Type II), and Fibered without Asbestos (Type III), for application on asphalt built-up roof membranes, modified bitumen roof membranes, bituminous base flashings, concrete surfaces, metal surfaces, emulsion coatings, and solvent-based coatings. This guide does not apply to the selection of a specific aluminum-pigmented asphalt roof coating type for use on specific projects.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.3 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. Specific precautionary statements are given in Section 4.
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Designation:D3805–97 (Reapproved 2003)
Standard Guide for
Application of Aluminum-Pigmented Asphalt Roof Coatings
This standard is issued under the fixed designation D 3805; 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 (e) indicates an editorial change since the last revision or reapproval.
e NOTE—This guide was made SI-dominant editorially in August 2003.
1. Scope 3. Significance and Use
1.1 This guide covers the application methods for Specifi- 3.1 Asphalt-based, solvent-type, fibered or nonfibered,
cation D 2824 Aluminum-Pigmented Asphalt Roof Coatings, aluminum-pigmented roof coatings are used as a protective
Non-Fibered (Type I),Asbestos Fibered (Type II), and Fibered coating for solar reflection to prolong the life of roofing
withoutAsbestos (Type III), for application on asphalt built-up materials or where decorative qualities are desired.
roof membranes, modified bitumen roof membranes, bitumi- 3.2 Suitable application of aluminum-pigmented asphalt
nous base flashings, concrete surfaces, metal surfaces, emul- roof coatings is an important factor in achieving a successful
sion coatings, and solvent-based coatings. This guide does not long-term coating. Suitable application is, in part, dependent
apply to the selection of a specific aluminum-pigmented upon appropriate specifications to guide the work. This guide
asphalt roof coating type for use on specific projects. can be useful in facilitating development of an appropriate
1.2 The values stated in SI units are to be regarded as the specification for surface preparation and application of the roof
standard. The values given in parentheses are for information coating.
only. 3.3 Designers/specifiers of coatings may use this guide in
1.3 This standard does not purport to address all of the preparing the application portion of their specification. Con-
safety concerns, if any, associated with its use. It is the tractors working directly for the building owner, may also use
responsibility of the user of this standard to establish appro- this guide.
priate safety and health practices and determine the applica- 3.4 This guide is not all-inclusive. Manufacturer’s applica-
bility of regulatory limitations prior to use. Specific precau- tion instructions should be consulted and geographical “area
tionary statements are given in Section 4. practices” considered. Consult membrane manufacturer and
coating manufacturer for acceptability of procedures and
2. Referenced Documents
products.
2.1 ASTM Standards:
4. Storage
D 1079 Terminology Relating to Roofing, Waterproofing,
and Bituminous Materials 4.1 Thecontainershouldbetightlysealedtopreventsolvent
D 2824 Specification for Aluminum-Pigmented Asphalt evaporation and to keep out moisture. The coatings should not
Roof Coatings, Nonfibered,Asbestos Fibered, and Fibered be stored at temperatures above 50°C (120°F). (Warning—
Without Asbestos When re-sealing a container, exercise caution to avoid trapping
D 4263 Test Method for Indicating Moisture in Concrete by or incorporating water into the container. Water can react with
the Plastic Sheet Method aluminum pigment producing hydrogen gas, a potential explo-
2.2 Other Documents: sion hazard.)
Asphalt Roofing Manufacturers Association/Roof Coatings
5. Equipment for Application of Coating
Manufacturers Association, Guidelines for Evaluating
5.1 Brush—A three-knot or four-knot roofer’s brush or
and Preparing Modified Bitumen Roofing for the Appli-
cation of Surface Coatings other suitable brush.
5.2 Roller—A medium nap roller cover, suitable for use
with asphalt-based, solvent-type coatings.
This guide is under the jurisdiction of ASTM Committee D08 on Roofing and
5.3 Spray—Equipment capable of spraying coating in a
Waterproofing and is the direct responsibility of Subcommittee D08.05 on Solvent-
controlled manner to achieve desired application rate.
Bearing Bituminous Compounds for Roofing and Waterproofing.
Current edition approved Aug. 10, 2003. Published August 2003. Originally
approved in 1979. Last previous edition approved in 1997 as D 3805 – 97.
Annual Book of ASTM Standards, Vol 04.04.
Annual Book of ASTM Standards, Vol 06.02.
Available from Roof Coatings Manufacturers Association (RCMA), Center
Park, Suite 404, 4041 Powder Mill Road, Calverton, MD 20705.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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D3805–97 (2003)
6. Mixing of Coating vacuum equipment. Heavily soiled areas may be washed using
trisodium phosphate with water and scrubbed with a broom or
6.1 The aluminum pigment and filler settle out during
power washed. Rinse thoroughly with plenty of fresh water to
storage. Thorough mixing of coating is necessary to redisperse
remove cleaning solutions. Allow water to evaporate prior to
these components prior to use. Mechanically mix the coating
start of application of coating. Remove materials that could
until homogeneous. Periodic mixing of the coating during
impede coating adhesion.
application may be needed. Coating should not be thinned or
9.2 Concrete Surfaces—Theconcretemustbecuredanddry
heated.
prior to application. Test Method D 4263 is an example of a
7. Weather Considerations
test that can be conducted to assess moisture contained in the
7.1 Coating applications should not proceed during periods concrete.
of inclement weather. Do not begin application when precipi- 9.3 Metal Surfaces—Clean areas of rust and prime the
tation is anticipated within 24 h after application. cleaned area with a suitable primer. Exposed fasteners must be
7.2 Apply materials when ambient
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