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ASTM C1481-00

(Guide)

Standard Guide for Use of Joint Sealants with Exterior Insulation and Finish Systems (EIFS)

Standard Guide for Use of Joint Sealants with Exterior Insulation and Finish Systems (EIFS)

SCOPE
1.1 This guide describes the use of single and multi-component, cold-applied joint sealants, or precured sealant systems for joint sealing applications, or both, in buildings using exterior insulation and finish systems (EIFS) on one or both sides of the joint. Refer to 10.1 for joint seal geometries.
1.2 The elastomeric sealants described by this guide meet the requirements of Specifications C834, C920, or C1311.
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are provided for information only.
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. For specific hazard statements, see Notes 1 and 2.
1.4 There are no ISO standards similar or equivalent to this ASTM standard.

General Information

Status
Historical
Publication Date
09-Sep-2000
ICS
91.100.50 - Binders. Sealing materials
Technical Committee
C24 - Building Seals and Sealants
Drafting Committee
C24.10 - Specifications, Guides and Practices
Current Stage
Ref Project

Relations

Replaced By
ASTM C1481-00(2006) - Standard Guide for Use of Joint Sealants with Exterior Insulation and Finish Systems (EIFS)
Effective Date
01-Jan-2006
Referred By
ASTM C1193-16(2023) - Standard Guide for Use of Joint Sealants
Effective Date
10-Sep-2000
Referred By
ASTM C1397-13(2019) - Standard Practice for Application of Class PB Exterior Insulation and Finish Systems (EIFS) and EIFS with Drainage
Effective Date
10-Sep-2000
Referred By
ASTM C1472-16(2022) - Standard Guide for Calculating Movement and Other Effects When Establishing Sealant Joint Width
Effective Date
10-Sep-2000
Referred By
ASTM C1535-05(2023) - Standard Practice for Application of Exterior Insulation and Finish Systems Class PI
Effective Date
10-Sep-2000

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ASTM C1481-00 - Standard Guide for Use of Joint Sealants with Exterior Insulation and Finish Systems (EIFS)ASTM C1481-00 - Standard Guide for Use of Joint Sealants with Exterior Insulation and Finish Systems (EIFS)
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ASTM C1481-00 - Standard Guide for Use of Joint Sealants with Exterior Insulation and Finish Systems (EIFS)
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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:C1481–00
Standard Guide for
Use of Joint Sealants with Exterior Insulation and Finish
Systems (EIFS)
This standard is issued under the fixed designation C 1481; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope C 1397 Practice for Application of Class PB Exterior Insu-
lation and Finish Systems
1.1 This guide describes the use of single and multi-
C 1472 Guide for Calculating Movement and Other Effects
component, cold-applied joint sealants, or precured sealant
When Establishing Sealant Joint Width
systems for joint sealing applications, or both, in buildings
2.2 ANSI Standard:
using exterior insulation and finish systems (EIFS) on one or
American National Standard for Exterior Insulation and
both sides of the joint. Refer to 10.1 for joint seal geometries.
Finish Systems (EIFS)
1.2 The elastomeric sealants described by this guide meet
the requirements of Specifications C 834, C 920, or C 1311.
3. Terminology
1.3 The values stated in SI units are to be regarded as the
3.1 Definitions:
standard. The values given in parentheses are provided for
3.1.1 Refer to Terminology C 717 for definitions of the
information only.
following terms used in this guide: bicellular sealant backing,
1.4 This standard does not purport to address all of the
bond breaker, bridge sealant joint, butt sealant joint, chemi-
safety concerns, if any, associated with its use. It is the
cally curing sealant, closed cell sealant backing, compatibility,
responsibility of the user of this standard to establish appro-
compatible materials, cure, elastomeric, elongation, fillet seal-
priate safety and health practices and determine the applica-
ant joint, joint, lap sealant joint, latex sealant, modulus,
bility of regulatory limitations prior to use. For specific hazard
non-sag sealant, open cell sealant backing, primer, seal,
statements, see Notes 1 and 2.
sealant, sealant backing, shelf-life, solvent-release sealant,
1.5 There are no ISO standards similar or equivalent to this
shrinkage, substrate, tooling, tooling time, working life (pot
ASTM standard.
life).
2. Referenced Documents 3.1.2 Refer to Terminology C 1397 for definitions of the
following terms used in this guide: accessories, base coat,
2.1 ASTM Standards:
cure, dry, durability, embed, expansion joint, exterior insula-
C 717 Terminology of Building Seals and Sealants
tion and finish system (EIFS), finish coat, lamina, nonmetallic
C 719 Test Method for Adhesion and Cohesion of Elasto-
reinforcing mesh, primers, reinforced base coat, substrate,
meric Joint Sealants Under Cyclic Movement (Hockman
2 texture, thermal insulation board, wrap, wrapping.
Cycle)
C 794 Test Method for Adhesion-in-Peel of Elastomeric
4. Significance and Use
Joint Sealants
2 4.1 The intent of this guide is to provide information and
C 834 Specification for Latex Sealants
2 guidelines for the selection of materials for joint seals in, or
C 920 Specification Elastomeric Joint Sealants
2 adjacent to, EIFS.
C 1193 Guide for Use of Joint Sealants
4.2 Joints need to be designed for the expected movements
C 1299 Guide for Use in Selection of Liquid-Applied Seal-
2 and construction tolerances so an appropriate joint width can
ants
be established.
C 1311 Specification for Solvent Release Sealants
C 1382 Test Method for Determining Tensile Adhesion
DESIGN CONSIDERATIONS
Properties of Sealants When Used in Exterior Insulation
and Finish Systems (EIFS) Joints
5. General
5.1 The major components of a joint seal in, or adjacent to,
EIFS that should be considered when selecting or using
ThisguideisunderthejurisdictionofASTMCommitteeC24onBuildingSeals
and Sealants and is the direct responsibility of Subcommittee C24.10 on Specifi-
cations, Guides and Practices. Annual Book of ASTM Standards, Vol 04.01.
Current edition approved Sept. 10, 2000. Published December 2000. Available from American National Standards Institute, 11 W. 42nd St., 13th
Annual Book of ASTM Standards, Vol 04.07. Floor, New York, NY 10036.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
C1481–00
sealants are as follows: EIFS substrate, primer, sealant backing
or bond-breaker, and sealant (see Figs. 1-11).
6. EIFS Substrate
6.1 Joint Location and Configuration—In an EIFS-clad
building, sealant joints typically are required at the following
locations:
6.1.1 At the floor line of multi-level wood frame construc-
tion;
6.1.2 At an existing building expansion joint;
6.1.3 Where dissimilar substrates are bridged;
6.1.4 When an EIFS abuts dissimilar building construction;
6.1.5 Some EIFS manufacturers may require joints in long
continuous elevations;
6.1.6 The size and location of joints is the responsibility of
the design professional and shall be consistent with the project
Legend
conditions and guidelines of the EIFS manufacturer.
A. Sealant
6.1.7 Joint Configuration—Industry accepted minimum
B. Sealant Backing
3 C. Bond Breaker
joint width is 19 mm ( ⁄4 in.) with sufficient depth to accom-
D. Joint
modate the sealant backing and sealant material. Lesser joint
E. Textured Finish
widths may be allowable where EIFS abuts adjacent materials. F. Reinforcing Mesh Embedded in Base
Coat
Consider the sealant manufacturer’s published sealant move-
G. Backwrap Mesh Around Insulation
ment capability when determining the appropriate joint width.
Board
Refer to Guide C 1472. Good architectural practice calls for H. Insulation Board
I. Adhesive (If Applicable)
jointdesignsthatallowforconstructiontolerancesandmaterial
FIG. 2 Sealant Butt Joint Seal (EIFS to Dissimilar Substrates)
variations.
6.2 EIFS Installation—The EIFS manufacturer’s recom-
mended installation procedures should be followed at all times.
6.2.1 Practice C 1397 provides a minimum requirement for
the application of Class PB EIFS.
6.2.2 Exposed edges of thermal insulation board which
create the sides of the joint must be protected with EIFS
Legend
A. Sealant
B. Sealant Backing
C. Bond Breaker
D. Joint
E. Textured Finish
F. Reinforcing Mesh Embedded in Base
Coat
Legend
G. Backwrap Mesh Around Insulation
A. Sealant
Board
B. Sealant Backing
H. Insulation Board
C. Bond Breaker
I. Adhesive (If Applicable)
D. Joint
FIG. 3 Recessed Sealant Butt Joint Seal (EIFS to EIFS)
E. Textured Finish
F. Reinforcing Mesh Embedded in Base
Coat
manufacturer’s nonmetallic reinforcing mesh fully embedded
G. Backwrap Mesh Around Insulation
in their base coat. This procedure is referred to as wrapping.
Board
There shall be no exposed mesh at joint locations or elsewhere.
H. Insulation Board
I. Adhesive (If Applicable)
6.2.3 EIFS manufacturers may require the use of an acces-
FIG. 1 Sealant Butt Joint Seal (EIFS to EIFS) sory to terminate a joint (see Figs. 4 and 5). Where an EIFS
C1481–00
Legend
Legend
A. Sealant
A. Sealant
B. Sealant Backing
B. Sealant Backing
C. Bond Breaker
C. Bond Breaker
D. Joint
D. Joint
E. Textured Finish
E. Textured Finish
F. Reinforcing Mesh Embedded in Base
F. Reinforcing Mesh Embedded in Base
Coat
Coat
G. Backwrap Mesh Around Insulation
G. Backwrap Mesh Around Insulation
Board
Board
H. Insulation Board
H. Insulation Board
I. Adhesive (If Applicable)
I. Adhesive (If Applicable)
J. Trim Accessory
FIG. 6 Sealant Bridge Joint Seal Using Liquid—Applied Sealant
and Bond Breaker
FIG. 4 Sealant Butt Joint Seal (Accessory to Accessory)
Legend
A. Sealant Legend
B. Sealant Backing A. Sealant
B. Sealant Backing
C. Bond Breaker
D. Joint C. Bond Breaker
D. Joint
E. Textured Finish
F. Reinforcing Mesh Embedded in Base E. Textured Finish
F. Reinforcing Mesh Embedded in Base
Coat
G. Backwrap Mesh Around Insulation Coat
G. Backwrap Mesh Around Insulation
Board
H. Insulation Board Board
H. Insulation Board
I. Adhesive (If Applicable)
J. Trim Accessory I. Adhesive (If Applicable)
FIG. 7 Sealant Bridge Joint Seal Using Precured Sealant
FIG. 5 Sealant Butt Joint Seal (Accessory to Dissimilar
Substrate)
manufacturer’s approved accessory is used as a termination 6.2.4 The EIFS substrate must be allowed sufficient time to
and sealant substrate, wrapping may not be required. cure or dry before application of sealants. A minimum drying
C1481–00
Legend
Legend
A. Sealant
A. Sealant
B. Sealant Backing
B. Sealant Backing
C. Bond Breaker
C. Bond Breaker
D. Joint
D. Joint
E. Textured Finish
E. Textured Finish
F. Reinforcing Mesh Embedded in Base
F. Reinforcing Mesh Embedded in Base
Coat
Coat
G. Backwrap Mesh Around Insulation
G. Backwrap Mesh Around Insulation
Board
Board
H. Insulation Board
H. Insulation Board
I. Adhesive (If Applicable)
I. Adhesive (If Applicable)
J. Sealant Bead
J. Sealant Bead
FIG. 10 Sealant Fillet Joint Seal U
...

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1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.  
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
Note 1: At this time, no comparable ISO standard exists.  
1.5 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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  • Standard
    4 pages
    English language
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