ASTM C1780-23a
(Practice)Standard Practice for Installation Methods for Cement-based Adhered Masonry Veneer
Standard Practice for Installation Methods for Cement-based Adhered Masonry Veneer
SCOPE
1.1 This practice is intended to provide accepted procedures to designers and installers of cement-based adhered masonry veneer in residential and commercial construction. This information is meant to complement the specific installation instructions provided by manufacturers of cement-based adhered masonry veneers and recognized building codes, but is not meant to replace them. This practice does not address installation methods or techniques for all materials in the building envelope. This practice covers the installation of cement-based adhered masonry veneer units for application as adhered veneer to exterior and interior walls, columns, landscape structures and other structures suitable to receive adhered veneer. The units included in this practice are manufactured to meet the requirements of Specification C1670/C1670M or C1877. This practice is limited to the installation of units. This practice does not cover all flashing or moisture management requirements. Refer to the applicable building code and project documents for additional flashing and moisture management requirements.
Note 1: The National Concrete Masonry Association (NCMA) publication Installation Guide and Detailing Options for Compliance with ASTM C1780 for Adhered Manufactured Stone Veneer provides generally accepted methods and details for installation and flashing for manufactured stone veneer.
Note 2: This standard was developed for the installation of cement-based adhered veneer units manufactured from wet-cast concrete or dry-cast concrete. Refer to Guide C1242 for installation of adhered natural stone veneer.
1.2 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.
1.3 All workmanship and materials related to the installation of cement-based adhered masonry veneer units shall meet the requirements of the contract documents and building code having jurisdiction over the project.
1.4 The text of this standard references notes and footnotes that provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.
1.5 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. (Warning—Fresh hydraulic cementitious mixtures are caustic and may cause chemical burns to skin and tissue upon prolonged exposure.2)
1.6 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.
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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: C1780 − 23a
Standard Practice for
Installation Methods for Cement-based Adhered Masonry
1
Veneer
This standard is issued under the fixed designation C1780; 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* 1.4 The text of this standard references notes and footnotes
that provide explanatory material. These notes and footnotes
1.1 This practice is intended to provide accepted procedures
(excluding those in tables and figures) shall not be considered
to designers and installers of cement-based adhered masonry
as requirements of the standard.
veneer in residential and commercial construction. This infor-
1.5 This standard does not purport to address all of the
mation is meant to complement the specific installation instruc-
safety concerns, if any, associated with its use. It is the
tions provided by manufacturers of cement-based adhered
responsibility of the user of this standard to establish appro-
masonry veneers and recognized building codes, but is not
priate safety, health, and environmental practices and deter-
meant to replace them. This practice does not address instal-
mine the applicability of regulatory limitations prior to use.
lation methods or techniques for all materials in the building
(Warning—Fresh hydraulic cementitious mixtures are caustic
envelope. This practice covers the installation of cement-based
and may cause chemical burns to skin and tissue upon
adhered masonry veneer units for application as adhered
2
prolonged exposure. )
veneer to exterior and interior walls, columns, landscape
1.6 This international standard was developed in accor-
structures and other structures suitable to receive adhered
dance with internationally recognized principles on standard-
veneer. The units included in this practice are manufactured to
ization established in the Decision on Principles for the
meet the requirements of Specification C1670/C1670M or
Development of International Standards, Guides and Recom-
C1877. This practice is limited to the installation of units. This
mendations issued by the World Trade Organization Technical
practice does not cover all flashing or moisture management
Barriers to Trade (TBT) Committee.
requirements. Refer to the applicable building code and project
documents for additional flashing and moisture management
2. Referenced Documents
requirements.
3
2.1 ASTM Standards:
NOTE 1—The National Concrete Masonry Association (NCMA) publi-
C90 Specification for Loadbearing Concrete Masonry Units
cation Installation Guide and Detailing Options for Compliance with
ASTM C1780 for Adhered Manufactured Stone Veneer provides generally C270 Specification for Mortar for Unit Masonry
accepted methods and details for installation and flashing for manufac-
C482 Test Method for Bond Strength of Ceramic Tile to
tured stone veneer.
Portland Cement Paste
NOTE 2—This standard was developed for the installation of cement-
C847 Specification for Metal Lath
based adhered veneer units manufactured from wet-cast concrete or
C926 Specification for Application of Portland Cement-
dry-cast concrete. Refer to Guide C1242 for installation of adhered natural
stone veneer. Based Plaster
C932 Specification for Surface-Applied Bonding Com-
1.2 The values stated in inch-pound units are to be regarded
pounds for Exterior Plastering
as standard. The values given in parentheses are mathematical
C933 Specification for Welded Wire Lath
conversions to SI units that are provided for information only
C979/C979M Specification for Pigments for Integrally Col-
and are not considered standard.
ored Concrete
1.3 All workmanship and materials related to the installa-
C1032 Specification for Woven Wire Plaster Base
tion of cement-based adhered masonry veneer units shall meet
C1059/C1059M Specification for Latex Agents for Bonding
the requirements of the contract documents and building code
Fresh To Hardened Concrete
having jurisdiction over the project.
1 2
This practice is under the jurisdiction of ASTM Committee C15 on Manufac- Annual Book of ASTM Standards. Vol 04.01. See the section on Safety
tured Masonry Units and is the direct responsibility of Subcommittee C15.05 on Precautions in the Manual of Cement Testing.
3
Masonry Assemblies. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Aug. 1, 2023. Published August 2023. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of AS
...
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: C1780 − 23 C1780 − 23a
Standard Practice for
Installation Methods for Cement-based Adhered Masonry
1
Veneer
This standard is issued under the fixed designation C1780; 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 is intended to provide accepted procedures to designers and installers of cement-based adhered masonry veneer
in residential and commercial construction. This information is meant to complement the specific installation instructions provided
by manufacturers of cement-based adhered masonry veneers and recognized building codes, but is not meant to replace them. This
practice does not address installation methods or techniques for all materials in the building envelope. This practice covers the
installation of cement-based adhered masonry veneer units for application as adhered veneer to exterior and interior walls,
columns, landscape structures and other structures suitable to receive adhered veneer. The units included in this practice are
manufactured to meet the requirements of Specification C1670/C1670M or C1877. This practice is limited to the installation of
units. This practice does not cover all flashing or moisture management requirements. Refer to the applicable building code and
project documents for additional flashing and moisture management requirements.
NOTE 1—The National Concrete Masonry Association (NCMA) publication Installation Guide and Detailing Options for Compliance with ASTM C1780
for Adhered Manufactured Stone Veneer provides generally accepted methods and details for installation and flashing for manufactured stone veneer.
NOTE 2—This standard was developed for the installation of cement-based adhered veneer units manufactured from wet-cast concrete or dry-cast concrete.
Refer to Guide C1242 for installation of adhered natural stone veneer.
1.2 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.
1.3 All workmanship and materials related to the installation of cement-based adhered masonry veneer units shall meet the
requirements of the contract documents and building code having jurisdiction over the project.
1.4 The text of this standard references notes and footnotes that provide explanatory material. These notes and footnotes
(excluding those in tables and figures) shall not be considered as requirements of the standard.
1.5 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. (Warning—Fresh hydraulic cementitious mixtures are caustic and may cause chemical burns
2
to skin and tissue upon prolonged exposure. )
1.6 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 C15 on Manufactured Masonry Units and is the direct responsibility of Subcommittee C15.05 on Masonry
Assemblies.
Current edition approved Jan. 1, 2023Aug. 1, 2023. Published January 2023August 2023. Originally approved in 2013. Last previous edition approved in 20202023 as
C1780 – 20. DOI: 10.1520/C1780-22.23. DOI: 10.1520/C1780-23A.
2
Annual Book of ASTM Standards. Vol 04.01. See the section on Safety Precautions in the Manual of Cement Testing.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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C1780 − 23a
2. Referenced Documents
3
2.1 ASTM Standards:
C90 Specification for Loadbearing Concrete Masonry Units
C270 Specification for Mortar for Unit Masonry
C482 Test Method for Bond Strength of Ceramic Tile to Portland Cement Paste
C847 Specification for Metal Lath
C926 Specification for A
...
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