ASTM C636/C636M-19
(Practice)Standard Practice for Installation of Metal Ceiling Suspension Systems for Acoustical Tile and Lay-In Panels
Standard Practice for Installation of Metal Ceiling Suspension Systems for<brk/> Acoustical Tile and Lay-In Panels
ABSTRACT
This practice covers the standard procedures for the installation of metal ceiling suspension systems for acoustical tile and lay-in panels. Here, specifications are provided for the installation of individual components such as hangers, carrying channels, main runners, cross runners, splines, assembly devices, and ceiling fixtures. Specifications are also given for possible interference of ceiling related components, and the lighting and appearance.
SCOPE
1.1 This practice covers the installation of suspension systems for acoustical tile and lay-in panels. It is applicable to contractors whose services are utilized for installing acoustical ceilings and to other trades if their activities are responsible for interference with ceiling components or performance as defined in this recommended practice.
1.2 While the practices described in this document have equal application to fire-resistive suspension systems, many systems impose additional requirements to obtain the fire endurance classification of particular floor-ceiling or roof-ceiling assemblies. These details are available from the listing agency and from the manufacturers.
1.3 Similarly, additional detailing is often necessary to meet sound attenuation requirements when ceiling plenums extend over contiguous rooms. Obtain these from the manufacturer of the acoustical material employed.
1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems result in non-conformance with the standard.
1.5 While many of the practices described in this practice have application to the installation of metal suspension systems in exterior environments, the specific design of exterior ceiling installations requires the review and approval of the architect or engineer, or both, who are responsible for the construction of the building or modifications to an existing building. While recommendations from the manufacturer are solicited, it remains the final responsibility of the architect/engineer to ensure proper application of the materials in question.
1.6 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.
1.7 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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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: C636/C636M − 19
Standard Practice for
Installation of Metal Ceiling Suspension Systems for
1
Acoustical Tile and Lay-In Panels
This standard is issued under the fixed designation C636/C636M; 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 responsibility of the user of this standard to establish appro-
priate safety, health, and environmental practices and deter-
1.1 This practice covers the installation of suspension sys-
mine the applicability of regulatory limitations prior to use.
tems for acoustical tile and lay-in panels. It is applicable to
1.7 This international standard was developed in accor-
contractors whose services are utilized for installing acoustical
dance with internationally recognized principles on standard-
ceilings and to other trades if their activities are responsible for
ization established in the Decision on Principles for the
interference with ceiling components or performance as de-
Development of International Standards, Guides and Recom-
fined in this recommended practice.
mendations issued by the World Trade Organization Technical
1.2 While the practices described in this document have
Barriers to Trade (TBT) Committee.
equal application to fire-resistive suspension systems, many
2. Installation of Components
systems impose additional requirements to obtain the fire
endurance classification of particular floor-ceiling or roof-
2.1 Hangers:
ceiling assemblies. These details are available from the listing
2.1.1 Where acoustical ceilings are suspended from a struc-
agency and from the manufacturers.
ture of wood construction, attach hangers with suitable me-
chanical devices either to the bottom edge of the wood joists or
1.3 Similarly, additional detailing is often necessary to meet
to the vertical face of the wood joists near the bottom edge.
sound attenuation requirements when ceiling plenums extend
Holding power tests certified by the manufacturer must be
over contiguous rooms. Obtain these from the manufacturer of
available on request for bottom edge attachment devices.
the acoustical material employed.
2.1.2 Where acoustical ceilings are suspended from a struc-
1.4 The values stated in either SI units or inch-pound units
ture of concrete construction, mount hangers using cast-in-
are to be regarded separately as standard. The values stated in
place hanger wires, hanger inserts, or other hanger attachment
each system are not exact equivalents; therefore, each system
devices whose suitability has been demonstrated by standard
shall be used independently of the other. Combining values
construction practice or by certified test data.
from the two systems result in non-conformance with the
2.1.3 Space hangers for carrying channels or main runners 4
standard.
ft 0 in. [1200 mm] on centers. If local situations allow greater
1.5 While many of the practices described in this practice
center distances between hangers, reduce the load-carrying
have application to the installation of metal suspension systems
capacity of the ceiling suspension system commensurate with
in exterior environments, the specific design of exterior ceiling
the actual center-to-center hanger distances used. If local
installations requires the review and approval of the architect
situations allow lesser center distances between hangers, in-
or engineer, or both, who are responsible for the construction
crease the load-carrying capacity of the ceiling suspension
of the building or modifications to an existing building. While
system commensurate with the actual center-to-center hanger
recommendations from the manufacturer are solicited, it re-
distances used.
mainsthefinalresponsibilityofthearchitect/engineertoensure
2.1.4 Each suspension wire shall not hang more than one in
proper application of the materials in question.
six out of plumb unless a countersloping wire or horizontal
bracing is provided. See Fig. 1 for allowable countersloping
1.6 This standard does not purport to address all of the
methods. Suspension wires shall not press against ducts or
safety concerns, if any, associated with its use. It is the
pipes.
2.1.5 Hangers formed from galvanized sheet metal stock
1
shall be suitable for suspending carrying channels or main
This practice is under the jurisdiction of ASTM Committee E33 on Building
and Environmental Acoustics and is the direct responsibility of Subcommittee
runners from an existing structure provided that the hange
...
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: C636/C636M − 13 C636/C636M − 19
Standard Practice for
Installation of Metal Ceiling Suspension Systems for
1
Acoustical Tile and Lay-In Panels
This standard is issued under the fixed designation C636/C636M; 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 suspension systems for acoustical tile and lay-in panels. It is applicable to contractors
whose services are utilized for installing acoustical ceilings and to other trades if their activities are responsible for interference
with ceiling components or performance as defined in this recommended practice.
1.2 While the practices described in this document have equal application to rated fire-resistive suspension systems, additional
requirements may have been imposed many systems impose additional requirements to obtain the fire endurance classification of
particular floor-ceiling or roof-ceiling assemblies. These details should be obtained from the are available from the listing agency
and from the manufacturers.
1.3 Similarly, additional detailing may beis often necessary to meet sound attenuation requirements when ceiling plenums
extend over contiguous rooms. These, too, should be obtained Obtain these from the manufacturer of the acoustical material
employed.
1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each
system mayare 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.
1.5 While many of the practices described in this practice have application to the installation of metal suspension systems in
exterior environments, the specific design of exterior ceiling installations requires the review and approval of the architect or
engineer, or both, who are responsible for the construction of the building or modifications to an existing building. While
recommendations from the manufacturer should be are solicited, it remains the final responsibility of the architect/engineer to
ensure proper application of the materials in question.
1.6 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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
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.
2. Installation of Components
2.1 Hangers:
2.1.1 Where acoustical ceilings are suspended from a structure of wood construction, attach hangers with suitable mechanical
devices either to the bottom edge of the wood joists or to the vertical face of the wood joists near the bottom edge. Holding power
tests certified by the manufacturer must be available on request for bottom edge attachment devices.
2.1.2 Where acoustical ceilings are suspended from a structure of concrete construction, mount hangers using cast-in-place
hanger wires, hanger inserts, or other hanger attachment devices whose suitability has been demonstrated by standard construction
practice or by certified test data.
2.1.3 Space hangers for carrying channels or main runners 4 ft 0 in. [1200 mm] on centers. If local situations allow greater
center distances between hangers, reduce the load-carrying capacity of the ceiling suspension system commensurate with the actual
1
This practice is under the jurisdiction of ASTM Committee E33 on Building and Environmental Acoustics and is the direct responsibility of Subcommittee E33.04 on
Application of Acoustical Materials and Systems.
Current edition approved April 1, 2013April 1, 2019. Published May 2013May 2019. Originally approved in 1969. Last previous edition approved in 20082013 as
C636 – 08.C636/C636M – 13. DOI: 10.1520/C0636_C0636M-13.10.1520/C0636_C0636M-19.
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