ASTM F2873-20
(Practice)Standard Practice for the Installation of Self-Leveling Underlayment and the Preparation of Surface to Receive Resilient Flooring
Standard Practice for the Installation of Self-Leveling Underlayment and the Preparation of Surface to Receive Resilient Flooring
SIGNIFICANCE AND USE
4.1 This practice provides minimum recommendations for the installation of self-leveling underlayments suitable to receive resilient floor coverings. This practice establishes the proper preparation of the subfloor, and installation methods and quality control requirements for self-leveling underlayments. This practice addresses any necessary preparation of the self-leveling underlayment’s surface prior to the installation of floor coverings.
4.2 Actual requirements for self-leveling underlayments are generally included as part of project plans or specifications and may vary from the recommendations set forth in this practice. Provisions in the project documents at variance with this practice shall take precedence.
SCOPE
1.1 This practice covers the installation of self-leveling underlayments, which may include a priming system, over solid wood, wood structural panel subfloors, over concrete, and over certain solidly bonded existing flooring systems such as epoxy floors, ceramic and natural stone tiles, terrazzo, metal subfloors and foils such as steel, copper and lead, solidly bonded patching and other leveling materials as well as properly prepared non water-soluble adhesive residues as recommended by the underlayment manufacturer. This practice also covers the preparation of the self-leveling underlayment’s surface prior to the installation of resilient flooring.
1.2 This practice points out the factors that are required to be controlled while installing a self-leveling underlayment to be used as a substrate for resilient flooring.
1.3 This practice does not cover the structural adequacy of the subfloor. The structural integrity of assemblies is governed by local building codes and may be superseded by the resilient flooring manufacturer's and the self-leveling underlayment manufacturer’s requirements.
1.4 This practice does not supersede the self-leveling underlayment manufacturer’s, adhesive manufacturer’s or resilient flooring manufacturer’s written instructions. Consult the individual manufacturer for specific recommendations.
1.5 Some self-leveling underlayments are not suitable for use on concrete slabs on or below grade due to potential moisture problems arising from moisture intrusion. However, most of the self-leveling underlayments may be suitable for use on and below grade if an adequate and effective vapor retarder or vapor barrier is present directly beneath the concrete slab or an effective moisture remediation system has been installed beneath the surface of the self-leveling underlayment. Consult the manufacturer of the self-leveling underlayment and flooring system for specific recommendations.
1.6 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.7 This practice does purport to address the necessity for or the safe or correct removal of asbestos containing materials. Breathing of asbestos dust is hazardous. Asbestos and asbestos products present demonstrated health risks for users and for those with whom they come into contact. In addition to other precautions, when working with asbestos-cement products, minimize the dust that results. For information on the safe use of chrysoltile asbestos, refer to “Safe Use of Chrysotile Asbestos: A Manual on Preventive and Control Measures.”2
1.8 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.9 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standar...
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This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: F2873 − 20
Standard Practice for
the Installation of Self-Leveling Underlayment and the
1
Preparation of Surface to Receive Resilient Flooring
This standard is issued under the fixed designation F2873; 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 1.6 The values stated in inch-pound units are to be regarded
as standard. The values given in parentheses are mathematical
1.1 This practice covers the installation of self-leveling
conversions to SI units that are provided for information only
underlayments, which may include a priming system, over
and are not considered standard.
solidwood,woodstructuralpanelsubfloors,overconcrete,and
over certain solidly bonded existing flooring systems such as 1.7 This practice does purport to address the necessity for or
epoxy floors, ceramic and natural stone tiles, terrazzo, metal the safe or correct removal of asbestos containing materials.
subfloors and foils such as steel, copper and lead, solidly Breathing of asbestos dust is hazardous.Asbestos and asbestos
bonded patching and other leveling materials as well as products present demonstrated health risks for users and for
properly prepared non water-soluble adhesive residues as those with whom they come into contact. In addition to other
recommendedbytheunderlaymentmanufacturer.Thispractice precautions, when working with asbestos-cement products,
also covers the preparation of the self-leveling underlayment’s minimize the dust that results. For information on the safe use
surface prior to the installation of resilient flooring. of chrysoltile asbestos, refer to “Safe Use of Chrysotile
2
Asbestos: A Manual on Preventive and Control Measures.”
1.2 This practice points out the factors that are required to
1.8 This standard does not purport to address all of the
be controlled while installing a self-leveling underlayment to
safety concerns, if any, associated with its use. It is the
be used as a substrate for resilient flooring.
responsibility of the user of this standard to establish appro-
1.3 This practice does not cover the structural adequacy of
priate safety, health, and environmental practices and deter-
the subfloor. The structural integrity of assemblies is governed
mine the applicability of regulatory limitations prior to use.
by local building codes and may be superseded by the resilient
1.9 This international standard was developed in accor-
flooring manufacturer’s and the self-leveling underlayment
dance with internationally recognized principles on standard-
manufacturer’s requirements.
ization established in the Decision on Principles for the
1.4 This practice does not supersede the self-leveling un-
Development of International Standards, Guides and Recom-
derlayment manufacturer’s, adhesive manufacturer’s or resil-
mendations issued by the World Trade Organization Technical
ient flooring manufacturer’s written instructions. Consult the
Barriers to Trade (TBT) Committee.
individual manufacturer for specific recommendations.
2. Referenced Documents
1.5 Some self-leveling underlayments are not suitable for
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use on concrete slabs on or below grade due to potential
2.1 ASTM Standards:
moisture problems arising from moisture intrusion. However,
C219 Terminology Relating to Hydraulic and Other Inor-
mostoftheself-levelingunderlaymentsmaybesuitableforuse
ganic Cements
on and below grade if an adequate and effective vapor retarder
C1583 Test Method for Tensile Strength of Concrete Sur-
or vapor barrier is present directly beneath the concrete slab or
faces and the Bond Strength or Tensile Strength of
an effective moisture remediation system has been installed
Concrete Repair and Overlay Materials by Direct Tension
beneath the surface of the self-leveling underlayment. Consult
(Pull-off Method)
the manufacturer of the self-leveling underlayment and floor-
C1708 Test Methods for Self-leveling Mortars Containing
ing system for specific recommendations.
Hydraulic Cements
F141 Terminology Relating to Resilient Floor Coverings
1
This practice is under the jurisdiction of ASTM Committee F06 on Resilient
2
Floor Coverings and is the direct responsibility of Subcommittee F06.40 on Available from http://www.chrysotile.com
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Practices. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved May 1, 2020. Published June 2020. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
ap
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: F2873 − 19 F2873 − 20
Standard Practice for
the Installation of Self-Leveling Underlayment and the
1
Preparation of Surface to Receive Resilient Flooring
This standard is issued under the fixed designation F2873; 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
1.1 This practice covers the installation of self-leveling underlayments, which may include a priming system, over solid wood,
wood structural panel subfloors, over concrete, and over certain solidly bonded existing flooring systems such as epoxy floors,
ceramic and natural stone tiles, terrazzo, metal subfloors and foils such as steel, copper and lead, solidly bonded patching and other
leveling materials as well as properly prepared non water-soluble adhesive residues as recommended by the underlayment
manufacturer. This practice also covers the preparation of the self-leveling underlayment’s surface prior to the installation of
resilient flooring.
1.2 This practice points out the factors that are required to be controlled while installing a self-leveling underlayment to be used
as a substrate for resilient flooring.
1.3 This practice does not cover the structural adequacy of the subfloor. The structural integrity of assemblies is governed by
local building codes and may be superseded by the resilient flooring manufacturer’s and the self-leveling underlayment
manufacturer’s requirements.
1.4 This practice does not supersede the self-leveling underlayment manufacturer’s, adhesive manufacturer’s or resilient
flooring manufacturer’s written instructions. Consult the individual manufacturer for specific recommendations.
1.5 Some self-leveling underlayments are not suitable for use on concrete slabs on or below grade due to potential moisture
problems arising from moisture intrusion. However, most of the self-leveling underlayments may be suitable for use on and below
grade if an adequate and effective vapor retarder or vapor barrier is present directly beneath the concrete slab or an effective
moisture remediation system has been installed beneath the surface of the self-leveling underlayment. Consult the manufacturer
of the self-leveling underlayment and flooring system for specific recommendations.
1.6 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only and are not considered standard.
1.7 This practice does purport to address the necessity for or the safe or correct removal of asbestos containing materials.
Breathing of asbestos dust is hazardous. Asbestos and asbestos products present demonstrated health risks for users and for those
with whom they come into contact. In addition to other precautions, when working with asbestos-cement products, minimize the
dust that results. For information on the safe use of chrysoltile asbestos, refer to “Safe Use of Chrysotile Asbestos: A Manual on
2
Preventive and Control Measures.”
1.8 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, health, and environmental practices and determine the applicability of
regulatory limitations prior to use.
1.9 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
1
This practice is under the jurisdiction of ASTM Committee F06 on Resilient Floor Coverings and is the direct responsibility of Subcommittee F06.40 on Practices.
Current edition approved Dec. 1, 2019May 1, 2020. Published March 2019June 2020. Originally approved in 2013. Last previous edition approved in 20182019 as
F2873-18.F2873-19. DOI: 10.1520/F2873-19.10.1520/F2873-20.
2
Available from http://www.chrysotile.com
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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F2873 − 20
2. Referenced Documents
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2.1 ASTM Standards:
C219 Terminology Relating to Hydraulic and Other Inorgani
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