ASTM C1397-13(2019)

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: C1397 − 13 (Reapproved 2019)
Standard Practice for
Application of Class PB Exterior Insulation and Finish
Systems (EIFS) and EIFS with Drainage
This standard is issued under the fixed designation C1397; 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* 2. Referenced Documents
1.1 This practice covers the minimum requirements and 2.1 ASTM Standards:
procedures for field or prefabricated application of Class PB C11 Terminology Relating to Gypsum and Related Building
Exterior Insulation and Finish Systems (EIFS) and EIFS with Materials and Systems
Drainage. Class PB EIFS are systems applied over insulation C150 Specification for Portland Cement
board, in which the base coat ranges from not less than ⁄16 in. C1063 Specification for Installation of Lathing and Furring
(1.6 mm) to ⁄4 in. (6.4 mm) in dry thickness, depending upon to Receive Interior and Exterior Portland Cement-Based
the number of nonmetallic reinforcing mesh layers encapsu- Plaster
lated in the base coat (see Specification E2568). The base coat C1177/C1177M Specification for Glass Mat Gypsum Sub-
is then covered with a finish coat of varying thickness in a strate for Use as Sheathing
variety of textures and colors. EIFS with Drainage provides a C1186 Specification for Flat Fiber-Cement Sheets
mechanism to drain incidental moisture C1278/C1278M Specification for Fiber-Reinforced Gypsum
Panel
1.2 The values stated in inch-pound units are to be regarded
C1280 Specification for Application of Exterior Gypsum
as standard. The values given in parentheses are mathematical
Panel Products for Use as Sheathing
conversions to SI units that are provided for information only
C1325 Specification for Fiber-Mat Reinforced Cementitious
and are not considered standard.
Backer Units
1.3 The text of this practice references notes and footnotes
C1382 Test Method for DeterminingTensileAdhesion Prop-
which provide explanatory material. These notes and footnotes
erties of Sealants When Used in Exterior Insulation and
(excluding those in tables and figures) shall not be considered
Finish Systems (EIFS) Joints
as a requirement of the standard.
C1396/C1396M Specification for Gypsum Board
1.4 This standard does not purport to address all of the
C1472 Guide for Calculating Movement and Other Effects
safety concerns, if any, associated with its use. It is the When Establishing Sealant Joint Width
responsibility of the user of this standard to establish appro-
C1481 Guide for Use of Joint Sealants with Exterior Insu-
priate safety, health, and environmental practices and deter- lation and Finish Systems (EIFS)
mine the applicability of regulatory limitations prior to use.
E1825 Guide for Evaluation of Exterior Building Wall
1.5 This international standard was developed in accor- Materials, Products, and Systems
dance with internationally recognized principles on standard-
E2110 Terminology for Exterior Insulation and Finish Sys-
ization established in the Decision on Principles for the tems (EIFS)
Development of International Standards, Guides and Recom-
E2430 Specification for Expanded Polystyrene (“EPS”)
mendations issued by the World Trade Organization Technical Thermal Insulation Boards for Use in Exterior Insulation
Barriers to Trade (TBT) Committee.
and Finish Systems (“EIFS”)
E2568 Specification for PB Exterior Insulation and Finish
1 Systems
This practice is under the jurisdiction of ASTM Committee C11 on Gypsum
and Related Building Materials and Systems and is the direct responsibility of
Subcommittee C11.05 on Application of Exterior Insulating and Finish Systems and
Related Products. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved March 1, 2019. Published March 2019. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 1998. Last previous edition approved in 2013 as C1397 – 13. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/C1397-13R19. 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
C1397 − 13 (2019)
E2570 Test Methods for Evaluating Water-Resistive Barrier on a level platform and protected from the weather, surface
(WRB) Coatings Used under Exterior Insulation and contaminationorphysicaldamageinaccordancewiththeEIFS
Finish Systems (EIFS) or EIFS with Drainage manufacturer’s written instructions.
9.2 Materials shall be protected from exposure to direct
3. Terminology
sunlight and temperatures less than 40 °F (4 °C), unless
3.1 Definitions used in this standard shall be in accordance
otherwise specified by the manufacturer.
with Terminologies C11 and E2110.
9.3 Portland Cement shall meet Specification C150 and
shall be kept dry until ready for use. It shall be kept off the
4. Significance and Use
ground, under cover and away from damp walls and surfaces.
4.1 This practice provides minimum requirements for the
9.4 Insulation board shall be stacked flat with care taken to
application of Class PB EIFS and EIFS with Drainage (see
avoid damage to edges, ends, or surfaces; or exposure to direct
Specification E2568). The requirements for materials,
sunlight (ultraviolet radiation).
mixtures,anddetailsshallbecontainedintheprojectplansand
specifications. See Guide E1825 for guidance.
10. Environmental Conditions
5. Delivery of Materials
10.1 Cold Weather Conditions:
5.1 All materials shall be delivered in packages, containers, 10.1.1 Wet materials shall not be applied when the tempera-
or bundles with the identification and markings intact. ture is less than 40 °F (4 °C), unless otherwise specified by the
manufacturer, unless temporary heat and enclosures are pro-
6. Inspection
videdtomaintainminimum40°F(4°C)foraminimumperiod
of not less than 24 h before, during, and after application (see
6.1 Inspectionofthematerialsshallbeagreeduponbetween
Annex A1.9.3).
the purchaser and the supplier as part of the purchase agree-
10.1.2 Materials shall not be applied to a base containing
ment.
frost. Substrate surface temperature shall be not less than 40 °F
6.2 Inspection shall verify that the EIFS materials supplied
(4 °C). Mixtures for application shall not contain any frozen
are as required for the Class PB EIF System or EIFS with
ingredients.
Drainage System specified. Mixing of EIFS materials from
different manufacturers is not allowed.
11. Assessment of Condition of Substrates to Receive
Water-Resistive Barrier Coating (if applicable) or
7. Rejection
Exterior Insulation and Finish Systems or Both
7.1 Materials that are damaged, frozen or in any way
11.1 The substrate shall be as required by the project plans
defective shall not be used. Rejection of materials shall be
and specifications and as recommended by the EIFS manufac-
promptly reported verbally to the manufacturer and immedi-
turer for the particular system specified.
ately reported in writing. The notice of rejection shall contain
11.1.1 Insulation boards shall be as required by the EIFS
a statement documenting the basis for material rejection.
manufacturer’s specification and in the thickness specified.
8. Certification
11.2 The substrate shall be inspected by the applicator and
8.1 When specified in the contract documents, the producer general contractor to ensure that it meets the project plans and
shall furnish a report certifying that the materials are in specifications and the requirements of 11.3 – 11.8.
conformance with product and material standards and contract
11.3 Sheathing materials shall be inspected to ensure that:
documents.
11.3.1 The specified sheathing thickness has been installed
8.2 Insulation Boards: for the stud spacing used.
8.2.1 Insulation boards shall comply with Specification
11.3.2 Fastener type and fastener spacing are as specified.
E2430. 11.3.3 All Specification C1396/C1396M gypsum sheathing
8.2.2 The insulation boards shall have been subjected to a
boards shall have a water-resistant core.
third party quality control inspection and shall be marked as
11.3.4 Tongue and groove water-resistant treated core gyp-
approved for use within the EIFS.
sum sheathing boards conforming to Specification C1396/
8.2.3 Prior to installation, the insulation board shall be
C1396M shall be installed with the tongue edge oriented to the
inspected for conformance with contract documents. Noncon-
top.
forming insulation board shall not be used.
11.3.5 Gypsum sheathing shall be installed in accordance
8.2.4 The insulation board manufacturer shall furnish, for
with Specification C1280.
each shipment, a written certificate of conformance with the
11.3.6 Gypsum sheathing shall be protected from moisture
EIFS manufacturer’s specifications.
at all penetrations and terminations.
11.3.7 Glass mat gypsum sheathing complying with Speci-
9. Storage of Materials
fication C1177/C1177M shall be installed in accordance with
9.1 All materials shall be kept dry by storage under cover the sheathing manufacturer’s written installation instructions,
and protected from the weather. When outside storage is which include details of framing type and spacing, fastener
required, materials shall be stacked off the ground, supported type and spacing, and sheathing orientation and spacing.
C1397 − 13 (2019)
11.3.8 Plywood shall be not less than ⁄2 in. (12.7 mm) 11.6.2 Efflorescence and laitance on concrete, masonry,
nominal in thickness, exterior or exposure 1 wood-based panel stucco or clay tile substrates shall be removed prior to EIFS
sheathing. The plywood shall be installed with a ⁄8 in. (3.2 application. Concrete masonry shall be cleaned by light
mm) space between sheets. sandblasting, pressure washing, or brushing. Heavy deposits
shall be removed through use of hand or power impact tools
11.3.9 OrientedStrandBoard(OSB)shallbenominal ⁄16in.
followed by washing with an appropriate cleaner. Light depos-
(11.1 mm) thick APA Exposure 1 rated.
its shall be removed by washing with an appropriate cleaner.
11.3.10 Fiber-cement sheets complying with Specification
All loose particles and cleaner residue shall be removed by
C1186, TypeA, shall be installed in accordance with the sheet
washing with clean, potable water. The surface shall be
manufacturer’s written installation instructions, which include
allowed to dry.
details of stud type and spacing, fastener type and spacing, and
11.6.3 Existing paint on concrete or masonry surfaces shall
sheet spacing recommendations.
be removed by sandblasting or grit blasting. If removal of
11.3.11 Water-resistant exterior fiber-reinforced gypsum
existing paint is not practical, an alternate attachment surface
sheathing complying with Specification C1278/C1278M shall
or method shall be provided.
be installed in accordance with the sheathing manufacturer’s
written installation instructions, which include details of stud
11.7 Dryness:
type and spacing, fastener type and spacing, and sheathing
11.7.1 Newly constructed concrete or masonry surfaces
orientation and spacing.
shall be allowed to cure for a minimum of 28 days prior to
11.3.12 Fiber-mat reinforced cement sheets complying with
application of the EIFS or EIFS with Drainage. Repaired areas
Specification C1325, type A, shall be installed in accordance
on existing (aged) walls shall meet the same 28-day curing
with the sheet manufacturer’s written installation instructions,
time.
which include details of framing type and spacing, fastener
11.7.2 Sheathing must be dry prior to EIFS or EIFS with
type and spacing, and sheet orientation and spacing.
Drainage application.
11.3.13 Sheathing shall be continuous. 11.7.3 Substrate surfaces shall be free of visible water.
11.4 Alignment—All substrate surfaces shall be straight and 11.8 Metal Lath—Ifmetallathisused,itshallbeinstalledin
true within ⁄4 in. (6.4 mm) in 10 ft (3048 mm). More stringent
conformance with Specification C1063, except lath edges shall
2 2
requirements by the EIFS manufacturer shall supersede the be butted, not lapped. Metal lath shall be 3.4 lb/yd (1.3 kg/m )
2 2
above stated requirements.
or 2.5 lb/yd (1.0 kg/m ), self furring or flat, G60 galvanized.
11.8.1 Metal members shall be properly attached, straight,
11.5 Suitability for Use—Thesubstratesurfaceshallbefirm,
and true unless required by the system design.
sound, and undamaged in order to receive the Water- Resistive
11.8.2 Metal members shall be free of rust, oil, or other
Barrier Coating or EIFS.
foreign matter or contaminants, which cause bond failure or
11.5.1 Loose, spalling or crumbling concrete or masonry
unsightly discoloration.
shall be removed by sandblasting or other appropriate means.
If the surface condition of the substrate is at all in doubt, an
12. Water-Resistive Barrier (WRB) Coating (When
alternative attachment surface or method shall be provided.
Specified) (See Test Methods E2570)
11.5.2 Broken, cracked or delaminated substrate boards
12.1 Manufacturer’s Recommended Joint Treatment (not
shall be replaced or restored to a condition equal to adjacent
required with concrete or masonry substrates)
undamaged boards.
11.5.3 All rotted, decayed, or delaminated wood and ply-
NOTE 2—Joint treatment materials and methods differ among manufac-
wood sheathing shall be replaced.
turers. Some manufacturers use self-adhesive membrane tapes and others
use fluid-applied flexible coatings with embedded reinforcing mesh or
11.5.4 Paper-faced gypsum sheathing that has been installed
fabric.
and exposed to the elements for more than 30 days shall be
12.1.1 For sheathing substrates, apply manufacturer’s rec-
checked at not less than two locations, or every 5000 ft (465
m ), whichever is greater, for integrity of the surface. The ommended treatment along all joints in sheathing, inside and
procedures for evaluating the gypsum sheathing are found in outside corners, and exposed edges of sheathing at termina-
Annex A2. tions in accordance with manufacturers recommended details .
12.1.2 Center the treatment on sheathing joints, edges, etc.
NOTE 1—Gypsum sheathing conforming to Specification C1396/
For self-adhesive membrane tapes and self-adhesive mesh,
C1396M is sometimes not recommended for adhesive attachment by the
apply with the pressure-sensitive adhesive backing in contact
gypsum
...