Standard Practice for Application of Direct-Applied Exterior Finish Systems

SIGNIFICANCE AND USE
This practice provides minimum requirements for the application of Direct-applied Exterior Finish Systems. The requirements for materials, mixtures, and details shall be contained in the project plans and specifications.
SCOPE
1.1 This practice covers the minimum requirements and procedures for field application of Direct-applied Exterior Finish Systems (DEFS). Direct-applied exterior finish systems are coating systems applied over various substrates with non-metallic reinforcing mesh, in which the base coat ranges from not less than 1/16in. (1.6 mm) to 3/32 in. (2.4 mm) in dry thickness, depending on the mass of the reinforcing mesh. This base coat is subsequently covered with a finish coat that is available in a variety of textures and colors.
1.2 The values stated in inch-pound units are to be regarded as the standard. The metric values given in parentheses are approximate and are provided for information purposes only.
1.3 This standard may involve hazardous materials, operations and equipment. 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.

General Information

Status
Historical
Publication Date
30-Nov-2011
Current Stage
Ref Project

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ASTM C1516-05(2011) - Standard Practice for Application of Direct-Applied Exterior Finish Systems
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: C1516 − 05 (Reapproved 2011)
Standard Practice for
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Application of Direct-Applied Exterior Finish Systems
This standard is issued under the fixed designation C1516; 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* C1325 Specification for Non-Asbestos Fiber-Mat Rein-
forced Cementitious Backer Units
1.1 This practice covers the minimum requirements and
E1825 Guide for Evaluation of Exterior Building Wall
procedures for field application of Direct-applied Exterior
Materials, Products, and Systems
Finish Systems (DEFS). Direct-applied exterior finish systems
are coating systems applied over various substrates with
3. Terminology
non-metallic reinforcing mesh, in which the base coat ranges
1 3
from not less than ⁄16 in. (1.6 mm) to ⁄32 in. (2.4 mm) in dry
3.1 Definitions used in this standard shall be in accordance
thickness, depending on the mass of the reinforcing mesh.This
with Terminology C11.
base coat is subsequently covered with a finish coat that is
3.2 Definitions of Terms Specific to This Standard:
available in a variety of textures and colors.
3.2.1 accessories, n—preformed metal, fiberglass or plastic
1.2 The values stated in inch-pound units are to be regarded
members used to form corners, edges, control joints, or
as the standard. The metric values given in parentheses are
decorative effects.
approximate and are provided for information purposes only.
3.2.2 back wrapping, n—a deprecated term. See wrap.
1.3 This standard may involve hazardous materials, opera-
3.2.3 base coat, n—a material, either factory or field-mixed,
tions and equipment. This standard does not purport to address
used to cover the substrate and to encapsulate the reinforcing
all of the safety concerns, if any, associated with its use. It is
mesh.
the responsibility of the user of this standard to establish
3.2.4 cold joint, n—the visible junction in an exterior finish.
appropriate safety and health practices and determine the
applicability of regulatory limitations prior to use. 3.2.5 cure, v—to develop the ultimate properties of a wet
state material by a chemical process.
2. Referenced Documents
3.2.6 dry, v—to develop the ultimate properties of a wet
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state material solely by evaporation of volatile ingredients.
2.1 ASTM Standards:
C11 Terminology Relating to Gypsum and Related Building
3.2.7 durability, n—the capability of a building, assembly,
Materials and Systems
component, product, or construction to maintain serviceability
C1063 Specification for Installation of Lathing and Furring
over not less than a specified time.
to Receive Interior and Exterior Portland Cement-Based
3.2.8 embed, v—to encapsulate a non-metallic reinforcing
Plaster
mesh in either the joint compound or exterior finish.
C1177/C1177M Specification for Glass Mat Gypsum Sub-
3.2.9 expansion joint, n—a structural separation between
strate for Use as Sheathing
building elements that allows independent movement without
C1186 Specification for Flat Fiber-Cement Sheets
damage to the assembly.
C1278/C1278M Specification for Fiber-Reinforced Gypsum
Panel
3.2.10 factory mixed, n—a material that is prepared at the
point of manufacture and is ready to use without the addition
of other materials, except possibly water to adjust consistency.
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This practice is under the jurisdiction of ASTM Committee C11 on Gypsum
3.2.11 field mix, n—a material that is mixed in the field with
and Related Building Materials and Systems and is the direct responsibility of
other components and/or water.
Subcommittee C11.05 on Application of Exterior Insulating and Finish Systems and
Related Products.
3.2.12 finish coat, n—the final wet state material, that
Current edition approved Dec. 1, 2011. Published June 2011. Originally
providescolororadditionaltexture,appliedoverthereinforced
approved in 2002. Last previous edition approved in 2005 as C1516 – 05. DOI:
base coat.
10.1520/C1516-05R11.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
3.2.13 flash set (quick set), n—the early hardening or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
stiffness in the working characteristics of a Portland-cement
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. paste, mortar, or concrete, usually with the evolution of
*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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C1516 − 05 (2011)
considerable heat
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