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ASTM C1780-16

(Practice)

Standard Practice for Installation Methods for Adhered Manufactured Stone Masonry Veneer

Standard Practice for Installation Methods for Adhered Manufactured Stone Masonry Veneer

SCOPE
1.1 This practice is intended to provide accepted procedures to designers and installers of adhered manufactured stone masonry veneer in residential and commercial construction. This information is meant to complement the specific installation instructions provided by manufacturers of adhered manufactured stone 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 adhered manufactured stone 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. 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 Masonry Veneer Manufacturers Association (MVMA) publication Installation Guide for Adhered Concrete Masonry Veneer provides generally accepted methods and details for installation and flashing.  
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 adhered manufactured stone masonry veneer units shall meet the requirements of the contract documents and building code having jurisdiction over the project.  
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. (Warning—Fresh hydraulic cementitious mixtures are caustic and may cause chemical burns to skin and tissue upon prolonged exposure.2)

General Information

Status
Historical
Publication Date
14-Feb-2016
ICS
91.080.30 - Masonry
Technical Committee
C15 - Manufactured Masonry Units
Drafting Committee
C15.05 - Masonry Assemblies
Current Stage
Ref Project

Relations

Replaces
ASTM C1780-15a - Standard Practice for Installation Methods for Adhered Manufactured Stone Masonry Veneer
Effective Date
15-Feb-2016
Replaced By
ASTM C1780-16a - Standard Practice for Installation Methods for Adhered Manufactured Stone Masonry Veneer
Effective Date
01-Aug-2016

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REDLINE ASTM C1780-16 - Standard Practice for Installation Methods for Adhered Manufactured Stone Masonry VeneerREDLINE ASTM C1780-16 - Standard Practice for Installation Methods for Adhered Manufactured Stone Masonry Veneer
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REDLINE ASTM C1780-16 - Standard Practice for Installation Methods for Adhered Manufactured Stone Masonry Veneer
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Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: C1780 − 16
StandardPractice for
Installation Methods for Adhered Manufactured Stone
1
Masonry 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* bility of regulatory limitations prior to use. (Warning—Fresh
hydraulic cementitious mixtures are caustic and may cause
1.1 This practice is intended to provide accepted procedures
2
chemical burns to skin and tissue upon prolonged exposure. )
to designers and installers of adhered manufactured stone
masonry veneer in residential and commercial construction.
2. Referenced Documents
This information is meant to complement the specific installa-
3
2.1 ASTM Standards:
tion instructions provided by manufacturers of adhered manu-
C90 Specification for Loadbearing Concrete Masonry Units
facturedstonemasonryveneersandrecognizedbuildingcodes,
C270 Specification for Mortar for Unit Masonry
butisnotmeanttoreplacethem.Thispracticedoesnotaddress
C482 Test Method for Bond Strength of Ceramic Tile to
installation methods or techniques for all materials in the
Portland Cement Paste
building envelope. This practice covers the installation of
C847 Specification for Metal Lath
adhered manufactured stone masonry veneer units for applica-
C926 Specification for Application of Portland Cement-
tion as adhered veneer to exterior and interior walls, columns,
Based Plaster
landscape structures and other structures suitable to receive
C932 Specification for Surface-Applied Bonding Com-
adhered veneer. The units included in this practice are manu-
pounds for Exterior Plastering
factured to meet the requirements of Specification C1670.This
C933 Specification for Welded Wire Lath
practiceislimitedtotheinstallationofunits.Thispracticedoes
C979 Specification for Pigments for Integrally Colored Con-
not cover all flashing or moisture management requirements.
crete
Refer to the applicable building code and project documents
C1032 Specification for Woven Wire Plaster Base
foradditionalflashingandmoisturemanagementrequirements.
C1059 Specification for LatexAgents for Bonding Fresh To
NOTE 1—The Masonry Veneer Manufacturers Association (MVMA)
Hardened Concrete
publication Installation Guide for Adhered Concrete Masonry Veneer
C1063 Specification for Installation of Lathing and Furring
provides generally accepted methods and details for installation and
flashing. to Receive Interior and Exterior Portland Cement-Based
Plaster
1.2 The values stated in inch-pound units are to be regarded
C1180 Terminology of Mortar and Grout for Unit Masonry
as standard. The values given in parentheses are mathematical
C1232 Terminology of Masonry
conversions to SI units that are provided for information only
C1325 Specification for Non-Asbestos Fiber-Mat Rein-
and are not considered standard.
forced Cementitious Backer Units
1.3 All workmanship and materials related to the installa-
C1384 Specification for Admixtures for Masonry Mortars
tion of adhered manufactured stone masonry veneer units shall
C1670 Specification for Adhered Manufactured Stone Ma-
meet the requirements of the contract documents and building
sonry Veneer Units
code having jurisdiction over the project.
C1714 Specification for Preblended Dry Mortar Mix for
1.4 This standard does not purport to address all of the Unit Masonry
safety concerns, if any, associated with its use. It is the
E2556/E2556M Specification for Vapor Permeable Flexible
responsibility of the user of this standard to establish appro- Sheet Water-Resistive Barriers Intended for Mechanical
priate safety and health practices and determine the applica-
Attachment
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 Feb. 15, 2016. Published March 2016. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 2013. Last previous edition approved in 2015 as C1780 – 15a. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/C1780-16. the ASTM website.
*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
1

---------------------- Page: 1 ----------------------
C1780 − 16
2.2 Other
...

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 − 15a C1780 − 16
Standard Practice for
Installation Methods for Adhered Manufactured Stone
1
Masonry 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 adhered manufactured stone masonry
veneer in residential and commercial construction. This information is meant to complement the specific installation instructions
provided by manufacturers of adhered manufactured stone 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 adhered manufactured stone 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. 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 Masonry Veneer Manufacturers Association (MVMA) publication Installation Guide for Adhered Concrete Masonry Veneer provides
generally accepted methods and details for installation and flashing.
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 adhered manufactured stone masonry veneer units shall meet
the requirements of the contract documents and building code having jurisdiction over the project.
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. (Warning—Fresh hydraulic cementitious mixtures are caustic and may cause chemical burns to skin and
2
tissue upon prolonged exposure. )
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 Application of Portland Cement-Based Plaster
C932 Specification for Surface-Applied Bonding Compounds for Exterior Plastering
C933 Specification for Welded Wire Lath
C979 Specification for Pigments for Integrally Colored Concrete
C1032 Specification for Woven Wire Plaster Base
C1059 Specification for Latex Agents for Bonding Fresh To Hardened Concrete
C1063 Specification for Installation of Lathing and Furring to Receive Interior and Exterior Portland Cement-Based Plaster
C1180 Terminology of Mortar and Grout for Unit Masonry
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 Sept. 1, 2015Feb. 15, 2016. Published September 2015March 2016. Originally approved in 2013. Last previous edition approved in 2015 as
C1780 – 15.15a. DOI: 10.1520/C1780-15A.10.1520/C1780-16.
2
Annual Book of ASTM Standards. Vol 04.01. See the section on Safety Precautions in the Manual of Cement Testing.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*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
1

---------------------- Page: 1 ----------------------
C1780 − 16
C1232 Terminology of Masonry
C1325 Specification for Non-Asbestos Fiber-Mat Reinforc
...

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ASTM C1780-23a(Practice)
Standard Practice for Installation Methods for Cement-based Adhered Masonry Veneer

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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.
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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.  
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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)  
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4.1 These test methods are intended to provide reproducible data from which acceptance criteria, design data, and specifications can be developed for anchors intended to be installed in masonry assemblies.
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1.1 These test methods address the tensile and shear strengths of post-installed and placed-during-construction anchors in masonry test specimens made of masonry assemblies. Environmental exposures include freezing and thawing, moisture, decreased and elevated temperatures and corrosion. These test methods provide basic testing procedures for use with product-specific evaluation and acceptance standards and are intended to be performed in a testing laboratory. Product-specific evaluation and acceptance standards may add specific details and appropriate parameters as needed to accomplish the testing. Only those tests required by the specifying authority need to be performed.  
1.2 Loadings include quasi-static, dynamic, fatigue and shock. Environmental exposures include freezing and thawing, moisture, decreased and elevated temperatures and corrosion.  
1.3 These test methods are intended for use with post-installed and placed-during-construction anchors designed for installation projecting from the surface of a masonry test specimen.  
1.4 This standard prescribes separate procedures for static, dynamic, fatigue and shock testing. Nothing in this standard, however, shall preclude combined tests incorporating two or more of these types of loading (such as dynamic, fatigue and shock tests in series).  
1.5 The text of this standard refers to 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.  
1.6 Both inch-pound and SI units are provided in this standard. The testing may be performed in either system and reported in that system and the results converted to the other. However, anchor diameters, threads, and related testing equipment shall be in accordance with either inch-pound or SI provisions.  
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ASTM C1531-22(Test Method)
Standard Test Methods for In Situ Measurement of Masonry Mortar Joint Shear Strength Index

SIGNIFICANCE AND USE
5.1 This test method provides a means of evaluating the horizontal in-plane shear behavior of mortar joints in existing unreinforced masonry assemblies (see Note 2).
Note 2: The masonry mortar joint shear strength index obtained by this test method can be related to the masonry wall shear strength by relationships contained in referencing Codes and Standards. For example, formulas relating shear index to wall shear strength are found in Chapter A1 of the International Existing Building Code and Chapter 11 of the Seismic Evaluation and Retrofit of Existing Buildings, ASCE Standard ASCE/SEI 41. The user of this standard is cautioned that these shear strength relationships are typically empirical relationships based on tests of early 20th-century unreinforced brick masonry. These relationships typically assume that wall shear strength is limited by shear of the mortar joints rather than shear through the units  
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FIG. 2 Test Setup—Method B  
1.1.3 Method C (with Flatjack Applying Horizontal Load)—For determining mortar joint shear strength index using an estimate of the normal compressive stress at the location of the test site, as shown in Fig. 3. Horizontal displacement of the test unit is generally not measured during this procedure.
FIG. 3 Test Setup—Method C  
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ASTM C1532/C1532M-22(Practice)
Standard Practice for Selection, Removal, and Shipment of Manufactured Masonry Units and Masonry Specimens from Existing Construction

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4.1 Masonry specimens are sometimes removed as part of an assessment of the condition of masonry construction. Such specimens are commonly prepared for shipment to a laboratory where the specimens are assessed with visual techniques, petrographic techniques, or standard test methods. The process of selecting, removing, and shipping the specimens can have an effect on test results. This practice provides procedures for selecting, removing, and shipping masonry specimens removed from existing construction.  
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4.4 The outer surface of all masonry walls will experience water penetration when subjected to wind-driven rain. The resistance to water penetration is dependent on materials, workmanship, design, and maintenance. Some wall types accommodate large volumes of water penetration, without deleterious effects, through the presence of properly designed and installed drainage systems including flashing and weep holes. Use of this standard without consideration of the overall wall system may lead to incorrect conclusions regarding performance.  
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5.1 This test method is suitable for use on walls to determine the ability of masonry wall drainage systems to collect water penetrating the exterior wythe and to direct this water back to the exterior surface of the exterior wythe. Removal of a portion of the interior wall finishes is desirable to observe leakage into backup walls. Even with removal of interior finishes, in many cases it is not practical to observe surfaces behind spandrel beams, columns, or other obstructions. Potential areas where leakage may occur but that are not visible during the test shall be considered when interpreting the results of the test and shall be recorded in the report.  
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1.4 This test method covers the application of the testing using either inch-pound or SI units. The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text, the inch-pound units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.  
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ASTM C1232-21a(Terminology)
Standard Terminology for Masonry

SCOPE
1.1 This standard incorporates generic terms and generic definitions of terms specifically associated with manufactured masonry units and masonry constructed with manufactured masonry units. These generic terms and definitions are used within the standards developed by Committee C12 on Mortars and Grouts for Unit Masonry and Committee C15 on Manufactured Masonry Units.  
1.2 This standard incorporates terms and definitions of terms associated with the standards specific to clay masonry units, in particular to Specifications C32, C34, C56, C62, C126, C212, C216, C279, C410, C530, C652, C902, C1088, C1167, C1261, C1272, and C1405, and to Test Methods C67/C67M.  
1.3 This standard incorporates terms and definitions of terms associated with the standards specific to concrete masonry units in particular to Specifications C55, C73, C90, C129, C139, C744, C1319, C1372, C1491, C1623, and C1634 and to Test Methods C140/C140M, C426, and C1262/C1262M.  
1.4 This standard incorporates terms and definition of terms associated with the standards specific to autoclaved aerated concrete masonry units in particular to Practice C1692 and to Specifications C1386, C1691, and C1693.  
1.5 This standard incorporates terms and definitions of terms associated with the standards specific to clay and concrete roofing tile units in particular to Specifications C1167 and C1492 and to Test Methods C1568, C1569, and C1570.  
1.6 For terminology specific to mortar and grout, see Terminology C1180.  
1.7 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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ASTM
ASTM E514/E514M-20(Test Method)
Standard Test Method for Water Penetration and Leakage Through Masonry

SIGNIFICANCE AND USE
4.1 This test method provides information that aids in evaluating the effect of four principal variables: materials, coatings, wall design, and workmanship.  
4.2 Water penetration and leakage through masonry is significantly affected by air pressure in the test chamber. Data from tests made at different pressures are not comparable.  
4.3 The performance of a masonry wall is a function of materials, construction, wall design, and maintenance. In service the performance will also depend on the rigidity of supporting structure and on the resistance of components to deterioration by various causes, such as corrosion, vibration, thermal expansion and contraction, curing, and others. It is impossible to simulate the complex conditions encountered in service, such as variations in wind velocity, negative pressure, and lateral or upward moving air and water. Factors such as location, exposure, and wall openings should be considered.  
4.4 Given the complexity of variables noted above, this test method establishes comparative behavior between various masonry wall constructions in a given laboratory.  
4.5 Even when a single laboratory tests the same wall design utilizing the same wall materials and the same construction practices, variables such as the level of skill of the mason building the specimen, the temperature and humidity in the laboratory at the time of construction, curing of the specimen, the moisture contents of the materials used to build the specimen, and even the use or lack of use of a lime and water wash on the back of the specimen can affect the results of the test making reliable comparisons dubious. For these reasons and the multi-variables listed in 4.1, 4.2, and 4.3, a meaningful, useful, absolute wall leakage rating standard is impractical and discouraged.  
4.6 This test method is similar to but distinct from field Test Method C1601. This standard is a laboratory test method designed to test laboratory fabricated wall specimens and measures th...
SCOPE
1.1 This laboratory test method2 provides a procedure for determining the resistance to water penetration and leakage through unit masonry subjected to wind-driven rain. This test method is not identical to and the results are not the same as field standard Test Method C1601. This test method measures through-wall water penetration, whereas Test Method C1601 only measures surface water penetration.  
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.  
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For a specific hazard statement, see Section 6.  
1.4 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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ASTM
ASTM C1825-19(Guide)
Standard Guide for Developing Specifications for Masonry Units

SIGNIFICANCE AND USE
5.1 This guide is intended to provide guidance for developing ASTM unit specifications for nontraditional masonry units. The user of this guide is encouraged to review the Form and Style for ASTM Standards as well as the referenced unit specifications and test methods. Note that not all items presented in this guide are necessarily applicable or appropriate in all cases.  
5.2 ASTM specifications are not intended for proprietary products, but rather for a class of products that multiple manufacturers can produce, and are intended to ensure performance using those constituent materials or processes. Therefore, specific attributes that only relate to a specific brand should be avoided.  
5.3 This guide does not identify the complete range of considerations that may be required for a masonry unit manufactured using a non-traditional material. Traditional masonry units possess intrinsic properties that are commonly associated with masonry including but not limited to strength, fire resistance, durability, thermal and acoustical attributes.  
5.4 Non-traditional masonry unit products may meet all the physical property requirements of an existing ASTM standard unit specification, when tested using ASTM standard test methods. Nevertheless, performance of non-traditional masonry units is not assured since the intrinsic properties that are associated with traditional masonry units and assemblies may not be specifically evaluated through testing for specification compliance. Additionally, compliance with the physical properties in existing unit specifications does not mean that non-traditional units are in compliance with those specifications as traditional unit standards are only applicable to units produced with those materials and processes defined within that specification (refer to Appendix X1).
SCOPE
1.1 This guide provides general guidance for developing ASTM unit specification for masonry units manufactured with constituent materials, manufacturing methods, and combinations thereof, that are not included in a current ASTM standard. This guide shall not be construed as permitting the use of a product conflicting with requirements of the governing building code.  
1.2 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.  
1.3 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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ASTM
ASTM C1780-23a(Practice)
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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