HomeMy WebLinkAbout07 24 13.docMATT THE MILLER’S; CARMEL CITY CENTER; SUITE 101
07 24 13-
CARMEL CITY CENTER Date 03.26.12 WATER DRAINAGE EIFS
MATT THE MILLER’S; CARMEL CITY CENTER; SUITE 101
SECTION 07 24 13 - WATER-DRAINAGE EXTERIOR INSULATION AND FINISH SYSTEM (EIFS)
PART 1 - GENERAL
1.1 RELATED DOCUMENTS
A. Drawings and general provisions of the Contract, including General and Supplementary
Conditions and Division 1 Specification Sections, apply to this Section.
1.2 SUMMARY
A. Section includes water-drainage exterior insulation and finish system (EIFS) applied over glass-
matt sheathing with weather barrier.
B. Related Sections:
1. Division 04 Section "Unit Masonry" and “Stone Masonry” for manufactured through-wall
flashing, exposed flashing, and accessories.
2. Division 06 Section "Sheathing" for sheathing.
3. Division 07 Section "Joint Sealants" for additional information regarding sealing joints in
EIFS with elastomeric joint sealants.
1.3 SYSTEM DESCRIPTION
A. Class PB EIFS: A non-load-bearing, exterior wall cladding system that consists of an insulation
board attached adhesively, mechanically, or both to the substrate; an integrally reinforced base
coat; and a textured protective finish coat.
B. Water-Drainage EIFS: EIFS with a means that allows water entering into an EIFS assembly to
drain to the exterior.
C. EIFS Panel Components: Individually prefabricated EIFS panels with cladding system to match
1.3.A above; attached mechanically to installed EIFS wall cladding system.
1.4 PERFORMANCE REQUIREMENTS
A. EIFS Performance: Comply with the following:
1. Bond Integrity: Free from bond failure within EIFS components or between system and
supporting wall construction, resulting from exposure to fire, wind loads, weather, or other
in-service conditions.
2. Weather-tightness: Resistant to water penetration from exterior into water-drainage EIFS
and assemblies behind it or through them into interior of building that results in
deterioration of thermal-insulating effectiveness or other degradation of EIFS and
assemblies behind it, including substrates, supporting wall construction, and interior
finish, and including a means that allows water entering into an EIFS assembly to drain to
the exterior.
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B. Class PB EIFS: Provide EIFS having physical properties and structural performance that
comply with the following:
1. Abrasion Resistance: Sample consisting of 1-inch- thick EIFS mounted on 1/2-inch- thick
gypsum board; cured for a minimum of 28 days; and showing no cracking, checking, or
loss of film integrity after exposure to 528 quarts of sand when tested per ASTM D 968,
Method A.
2. Absorption-Freeze Resistance: No visible deleterious effects and negligible weight loss
after 60 cycles per EIMA 101.01.
3. Accelerated Weathering: Five samples per ICC-ES AC235 showing no cracking,
checking, crazing, erosion, rusting, blistering, peeling, delamination, or other
characteristics that might affect performance as a wall cladding after testing for 2000
hours when viewed under 5 times magnification per ASTM G 153 or ASTM G 154.
4. Freeze-Thaw: No surface changes, cracking, checking, crazing, erosion, rusting,
blistering, peeling, or delamination, or indications of delamination between components
when viewed under 5 times magnification after 60 cycles per EIMA 101.01.
5. Mildew Resistance of Finish Coat: Sample applied to 2-by-2-inch clean glass substrate,
cured for 28 days, and showing no growth when tested per ASTM D 3273 and evaluated
according to ASTM D 3274.
6. Salt-Spray Resistance: No deleterious affects when tested according to ICC-ES AC235.
7. Tensile Adhesion: No failure in the EIFS, adhesive, base coat, or finish coat when tested
per EIMA 101.03.
8. Water Penetration: Sample consisting of 1-inch- thick EIFS mounted on 1/2-inch- thick
gypsum board, cured for 28 days, and showing no water penetration into the plane of the
base coat to expanded polystyrene board interface of the test specimen after 15 minutes
at 6.24 lbf/sq. ft. of air pressure difference or 20 percent of positive design wind pressure,
whichever is greater, across the specimen during a test period when tested per
EIMA 101.02.
9. Water Resistance: Three samples, each consisting of 1-inch- thick EIFS mounted on 1/2-
inch- thick gypsum board; cured for 28 days; and showing no cracking, checking, crazing,
erosion, rusting, blistering, peeling, or delamination after testing for 14 days per
ASTM D 2247.
10. Impact Resistance: Sample consisting of 1-inch- thick EIFS when constructed,
conditioned, and tested per EIMA 101.86; and meeting or exceeding the following:
a. Medium Impact Resistance: 50 to 89 inch-lb.
b. High Impact Resistance: 90 to 150 inch-lb.
11. Drainage: According to ICC-ES AC235.
12. Structural Performance Testing: EIFS assembly and components shall comply with ICC-
ES AC235 when tested per ASTM E 330.
C. Performance of Prefabricated Panels: Prefabricated panels shall be designed as follows and
withstand structural performance indicated for Class PB EIFS and thermal movement limits
indicated below without failure due to defective manufacture, fabrication, installation, or other
defects in construction.
1. Match performance requirements for EIFS system.
1.5 SUBMITTALS
A. Product Data: For each type and component of EIFS indicated.
B. Shop Drawings: For EIFS. Include plans, elevations, sections, details of components, details of
penetration and termination, flashing details, location of sloped coatings, joint locations and
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configurations, fastening and anchorage details including mechanical fasteners, and
connections and attachments to other work.
1. Includes drawings for mechanically attached panel components, with attachment
information.
C. Panel Schedule: For prefabricated panel component fabrication.
1. Panel Schedule shall include locations and engineering certification for panel attachment
points.
D. Samples for Initial Selection: For each type of finish-coat color and texture indicated.
1. Include similar Samples of joint sealants and exposed accessories involving color
selection.
E. Samples for Verification: 24-inch- square panels for each type of finish-coat color and texture
indicated, prepared using same tools and techniques intended for actual work including custom
trim, each profile, an aesthetic reveal, a typical control joint filled with sealant of color selected.
1. Include sealants and exposed accessory Samples to verify color selected.
2. Provide sample of mechanically attached panel components complete, including
embedded aluminum channel and anchorage components.
F. Qualification Data: For Installer, fabricator/erector, professional engineer, and testing agency.
G. Manufacturer Certificates: Signed by manufacturers certifying that EIFS and joint sealants
comply with requirements.
H. Material or Product Certificates: For cementitious materials and aggregates and for each
insulation and joint sealant, from manufacturer.
I. Product Test Reports: Based on evaluation of comprehensive tests performed by a qualified
testing agency, for each water-/weather-resistive barrier, insulation, reinforcing mesh, joint
sealant, and coating.
J. Compatibility and Adhesion Test Reports: For joint sealants from sealant manufacturer
indicating the following:
1. Materials forming joint substrates and joint-sealant backings have been tested for
compatibility and adhesion with joint sealants.
2. Interpretation of test results and written recommendations for primers and substrate
preparation needed for adhesion.
K. Field quality-control reports.
L. Evaluation Reports: For exterior sheathing, fasteners, water-resistive coating, adhesive,
membrane flashing and EIFS (including insulation).
M. Maintenance Data: For EIFS to include in maintenance manuals.
1.6 QUALITY ASSURANCE
A. Installer Qualifications: An installer who is certified in writing by EIFS manufacturer as qualified
to install manufacturer's system using trained workers.
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1. Fabricator/Erector: Qualifications: Certified in writing by EIFS manufacturer as qualified
to fabricate and erect manufacturer's prefabricated panel system using skilled and trained
workers.
B. Source Limitations: Obtain EIFS from single source from single EIFS manufacturer and from
sources approved by EIFS manufacturer as compatible with system components.
C. Fire-Test-Response Characteristics: Provide EIFS and system components with the following
fire-test-response characteristics as determined by testing identical EIFS and system
components per test method indicated below by UL or another testing and inspecting agency
acceptable to authorities having jurisdiction. Identify products with appropriate markings of
applicable testing agency.
1. Fire-Resistance Characteristics: Provide materials and construction tested for fire
resistance per ASTM E 119.
2. Radiant Heat Exposure: No ignition of EIFS when tested according to NFPA 268.
3. Potential Heat: Acceptable level when tested according to NFPA 259.
4. Surface-Burning Characteristics: Provide insulation board, adhesives, base coats, and
finish coats with flame-spread index of 25 or less and smoke-developed index of 450 or
less, per ASTM E 84.
D. Mockups: Build mockups, if directed by Architect, to verify selections made under sample
submittals and to demonstrate aesthetic effects and set quality standards for materials and
execution and set quality standards for fabrication and installation.
1. Approved mockups may become part of the completed Work if undisturbed at time of
Substantial Completion.
E. Pre-installation Conference: Conduct conference at Project site.
1.7 DELIVERY, STORAGE, AND HANDLING
A. Deliver materials in original, unopened packages with manufacturers' labels intact and clearly
identifying products.
B. Store materials inside and under cover; keep them dry and protected from weather, direct
sunlight, surface contamination, aging, corrosion, damaging temperatures, construction traffic,
and other causes.
1. Stack insulation board flat and off the ground.
2. Protect plastic insulation against ignition at all times. Do not deliver plastic insulating
materials to Project site before installation time.
3. Complete installation and concealment of plastic materials as rapidly as possible in each
area of construction.
1.8 PROJECT CONDITIONS
A. Weather Limitations: Maintain ambient temperatures above 40 deg F for a minimum of 24
hours before, during, and after adhesives or coatings are applied. Do not apply EIFS adhesives
or coatings during rainfall. Proceed with installation only when existing and forecasted weather
conditions and ambient outdoor air, humidity, and substrate temperatures permit EIFS to be
applied, dried, and cured according to manufacturers' written instructions and warranty
requirements.
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B. Field Measurements: Verify actual dimensions required for prefabricated panels by field
measurement before fabrication.
1.9 COORDINATION
A. Coordinate installation of EIFS with related Work specified in other Sections to ensure that wall
assemblies, including sheathing, weather-barrier, flashing, trim, joint sealants, windows, and
doors, are protected against damage from the effects of weather, age, corrosion, moisture, and
other causes. Do not allow water to penetrate behind flashing and drainage plane that is behind
water-drainage EIFS.
1.10 WARRANTY
A. Manufacturer shall provide a written limited material warranty against defective materials.
PART 2 - PRODUCTS
2.1 MANUFACTURERS
A. Manufacturers: Subject to compliance with requirements, provide products by one of the
following:
1. Dryvit Systems, Inc.
2. Sto Corp.
2.2 MATERIALS
A. Compatibility: Provide water-resistive coating, adhesive, fasteners, board insulation, reinforcing
meshes, base- and finish-coat systems, sealants, and accessories that are compatible with one
another and with substrates and approved for use by EIFS manufacturer for Project.
B. Exterior glass-matt gypsum sheathing: Not less than 5/8-inch- thick, fiberglass-faced, moisture-
resistant gypsum sheathing board complying with ASTM C 1186, Type A, for exterior
applications.
1. Fasteners: Refer to Specification Section 06 16 00 "Sheathing" for additional information.
2. Sheathing Joint Compound and Tape: Refer to Specification Section 06 16 00
"Sheathing" for additional information.
C. Flexible-Membrane Flashing: Cold-applied, fully self-adhering, self-healing, rubberized-asphalt
and polyethylene-film composite sheet or tape and primer; EIFS manufacturer's standard or
product recommended in writing by EIFS manufacturer. Where interfacing, coordinate with
weather barrier installation requirements.
D. Insulation Adhesive: EIFS manufacturer's standard formulation designed for indicated use;
compatible with substrate; with VOC content of 50 g/L or less when calculated according to
40 CFR 59, Subpart D (EPA Method 24); and complying with one of the following:
1. Job-mixed formulation of portland cement complying with ASTM C 150, Type I, and
polymer-based adhesive specified for base coat.
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2. Factory-blended dry formulation of portland cement, dry polymer admixture, and fillers
specified for base coat.
3. Factory-mixed non-cementitious formulation designed for adhesive attachment of
insulation to substrates of type indicated, as recommended by EIFS manufacturer.
E. Molded, Rigid Cellular Polystyrene Board Insulation: Comply with ASTM C 578, Type I; EIFS
manufacturer's requirements; and EIMA's "EIMA Guideline Specification for Expanded
Polystyrene (EPS) Insulation Board" for most stringent requirements for material performance
and qualities of insulation, including dimensions and permissible variations, and the following:
1. Aging: Before cutting and shipping, age insulation in block form by air drying for not less
than six weeks or by another method approved by EIMA that produces equivalent results.
2. Flame-Spread and Smoke-Developed Indexes: 25 and 450 or less, respectively, per
ASTM E 84.
3. Dimensions: Provide insulation boards not more than 24 by 48 inches and in thickness
indicated and not more than 4 inches thick or less than thickness allowed by
ASTM C 1397.
4. Board Insulation Closure Blocks: EIFS manufacturer's standard density, size, and
configuration.
5. Foam Shapes: Provide with profiles and dimensions indicated on Drawings.
6. Panel Component Foam: 1 lb. EPS only.
F. Reinforcing Mesh: Balanced, alkali-resistant, open-weave, glass-fiber mesh treated for
compatibility with other EIFS materials, made from continuous multi-end strands with retained
mesh tensile strength of not less than 120 lbf/in. per ASTM E 2098; complying with
ASTM D 578 and the following:
1. Mesh:
a. Standard-Impact Reinforcing Mesh: Not less than 4.0 oz. /sq. yd.
b. Intermediate-Impact Reinforcing Mesh: Not less than 10 oz. /sq. yd.
c. High-Impact Reinforcing Mesh: Not less than 15 oz. /sq. yd.
d. Heavy-Duty Reinforcing Mesh: Not less than 20 oz. /sq. yd.
e. Strip Reinforcing Mesh: Not less than 3.75 oz. /sq. yd.
f. Detail Reinforcing Mesh: Not less than 4.0 oz. /sq. yd.
g. Corner Reinforcing Mesh: Not less than 7.2 oz. /sq. yd.
2. Adhesive: Acrylic based fiber reinforced flexible adhesive and waterproofing to be used
to adhere reinforcing mesh.
G. Base-Coat Materials: EIFS manufacturer's standard mixture complying with one of the following
requirements:
1. Job-mixed formulation of portland cement complying with ASTM C 150, Type I, white or
natural color; and manufacturer's standard polymer-emulsion adhesive designed for use
with portland cement.
2. Factory-blended dry formulation of portland cement, dry polymer admixture, and inert
fillers to which only water is added at Project site.
H. Waterproof Adhesive/Base-Coat Materials: EIFS manufacturer's standard waterproof
formulation with VOC content of 50 g/L or less when calculated according to 40 CFR 59,
Subpart D (EPA Method 24), complying with one of the following:
1. Job-mixed formulation of portland cement complying with ASTM C 150, Type I, white or
natural color; and manufacturer's standard polymer-emulsion adhesive designed for use
with portland cement.
2. Job-combined formulation of manufacturer's standard polymer-emulsion adhesive and
manufacturer's standard dry mix containing portland cement.
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I. Primer: EIFS manufacturer's standard factory-mixed, elastomeric-polymer primer for preparing
base-coat surface for application of finish coat.
J. Finish-Coat Materials: EIFS manufacturer's standard acrylic-based coating with enhanced
mildew resistance complying with the following:
1. Factory-mixed formulation of polymer-emulsion binder, colorfast mineral pigments, sound
stone particles, and fillers.
2. Sealer: Manufacturer's waterproof, clear acrylic-based sealer for protecting finish coat.
3. Colors: As selected by Architect from manufacturer's full range.
K. Water: Potable.
L. Trim Accessories: Type as designated or required to suit conditions indicated and to comply
with EIFS manufacturer's written instructions; manufactured from UV-stabilized PVC; and
complying with ASTM D 1784, manufacturer's standard Cell Class for use intended, and
ASTM C 1063.
1. Casing Bead: Prefabricated, one-piece type for attachment behind insulation, of depth
required to suit thickness of coating and insulation, with face leg perforated for bonding to
coating and back leg.
2. Drip Screed/Track: Prefabricated, one-piece type for attachment behind insulation with
face leg extended to form a drip, of depth required to suit thickness of coating and
insulation, with face leg perforated for bonding to coating and back leg.
3. Weep Screed/Track: Refer to Specification Section 04 20 00 "Unit Masonry" 2.12 and
2.13 for additional information.
4. Expansion Joint: Prefabricated, one-piece V profile; designed to relieve stress of
movement.
5. Panel Component Embedded Track: Aluminum 6065 T5 or T6. Hat channel inserted and
glued into panel. Panel is attached to substrate with a screwed connection.
2.3 ELASTOMERIC SEALANTS
A. General: Elastomeric Sealant Products: Provide EIFS manufacturer's listed and recommended
chemically curing, elastomeric sealant that is compatible with joint fillers, joint substrates, and
other related materials, and complies with requirements for products and testing indicated in
ASTM C 1481 and with requirements in Division 07 Section "Joint Sealants" for products
corresponding to description indicated below:
1. Multi-component, non-sag urethane sealant.
2. Single-component, non-sag, neutral-curing silicone sealant.
3. Provide sealants, for use inside the weatherproofing system, with a VOC content of 250
g/L or less when calculated according to 40 CFR 59, Subpart D (EPA Method 24).
B. Preformed Foam Sealant Products: Provide sealant compatible with adjacent materials and
complying with requirements in Division 07 Section "Joint Sealants."
C. Sealant Color: As selected by Architect from manufacturer's full range.
D. Products:
1. Single-Component, Non-sag, Neutral-Curing Silicone Joint Sealant: ASTM C 920,
Type S, Grade NS, Class 100/50, for Use NT.
a. Products: Subject to compliance with requirements, provide one of the following:
i. Dow Corning Corporation; 790.
ii. Tremco Incorporated; Spectrem 1.
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2. Single-Component, Non-sag, Neutral-Curing Silicone Joint Sealant: ASTM C 920,
Type S, Grade NS, Class 50, for Use NT.
a. Products: Subject to compliance with requirements, provide one of the following:
i. Pecora Corporation; 890.
ii. Tremco Incorporated; Spectrem 3.
2.4 MIXING
A. General: Comply with EIFS manufacturer's requirements for combining and mixing materials.
Do not introduce admixtures, water, or other materials except as recommended by EIFS
manufacturer. Mix materials in clean containers. Use materials within time period specified by
EIFS manufacturer or discard.
PART 3 - EXECUTION
3.1 EXAMINATION
A. Examine substrates, areas, and conditions, with Installer present, for compliance with
requirements for installation tolerances and other conditions affecting performance of EIFS.
B. Examine roof edges, wall framing, flashings, openings, substrates, and junctures at other
construction for suitable conditions where EIFS will be installed.
C. Proceed with installation only after unsatisfactory conditions have been corrected.
1. Begin coating application only after surfaces are dry.
2. Application of coating indicates acceptance of surfaces and conditions.
3.2 PREPARATION
A. Protect contiguous work from moisture deterioration and soiling caused by application of EIFS.
Provide temporary covering and other protection needed to prevent spattering of exterior finish
coats on other work.
B. Protect EIFS, substrates, and wall construction behind them from inclement weather during
installation. Prevent penetration of moisture behind drainage plane of EIFS and deterioration of
substrates.
C. Prepare and clean substrates to comply with EIFS manufacturer's written instructions to obtain
optimum bond between substrate and adhesive for insulation.
3.3 EXTERIOR GLASS-MATT GYPSUM SHEATHING INSTALLATION
A. Exterior Glass-matt Gypsum Sheathing: Install on metal framing to comply with manufacturer's
written instructions and evaluation report acceptable to authorities having jurisdiction.
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3.4 EIFS INSTALLATION, GENERAL
A. Comply with EIFS manufacturer's written instructions for installation of EIFS as applicable to
each type of substrate indicated.
3.5 SUBSTRATE PROTECTION APPLICATION
A. Primer/Sealer: Apply over brick masonry substrates as directed by EIFS manufacturer to
protect substrates from degradation and where required by EIFS manufacturer for improving
adhesion of insulation to substrate.
B. Waterproof Adhesive/Base Coat: Apply over sloped surfaces, window sills, parapets, and
where indicated on Drawings or otherwise directed to protect substrates from degradation.
3.6 TRIM INSTALLATION
A. Trim: Apply trim accessories at perimeter of EIFS, at expansion joints, at window sills, and
elsewhere as indicated, according to EIFS manufacturer's written instructions. Coordinate with
installation of insulation.
1. Weep Screed/Track: Use at bottom termination edges, at window and door heads of
water-drainage EIFS unless otherwise indicated.
2. Window Sill Flashing: Use at windows unless otherwise indicated.
3. Expansion Joint: Use where indicated on Drawings.
4. Casing Bead: Use at other locations.
3.7 INSULATION INSTALLATION - ADHESIVE ATTACHMENT
A. Board Insulation: Adhesively attach insulation to substrate in compliance with ASTM C 1397,
EIFS manufacturer's written instructions, and the following:
1. Apply adhesive to insulation by notched-trowel method in a manner that results in coating
the entire surface of weather barrier at sheathing with adhesive, once insulation is
adhered to sheathing unless EIFS manufacturer's written instructions specify using
primer/sealer with ribbon-and-dab method. Apply adhesive to a thickness of not less
than 1/4 inch for factory mixed and not less than 3/8 inch for field mixed, measured from
surface of insulation before placement.
2. Press and slide insulation into place. Apply pressure over the entire surface of insulation
to accomplish uniform contact, high initial grab, and overall level surface.
3. Allow adhered insulation to remain undisturbed for period recommended by EIFS
manufacturer, but not less than 24 hours, before installing mechanical fasteners,
beginning rasping and sanding insulation, or applying base coat and reinforcing mesh.
4. Apply insulation over drainage mat and dry substrates in courses with long edges of
boards oriented horizontally.
5. Begin first course of insulation from a level base line and work upward.
6. Begin first course of insulation from screed/track and work upward. Work from perimeter
casing beads toward interior of panels if possible.
7. Stagger vertical joints of insulation boards in successive courses to produce running
bond pattern. Locate joints so no piece of insulation is less than 12 inches wide or 6
inches high. Offset joints not less than 6 inches from corners of window and door
openings and not less than 4 inches from aesthetic reveals.
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a. Adhesive Attachment: Offset joints of insulation not less than 6 inches from
horizontal and 4 inches from vertical joints in sheathing.
8. Interlock ends at internal and external corners.
9. Abut insulation tightly at joints within and between each course to produce flush,
continuously even surfaces without gaps or raised edges between boards. If gaps
greater than 1/16 inch occur, fill with insulation cut to fit gaps exactly; insert insulation
without using adhesive or other material.
10. Cut insulation to fit openings, corners, and projections precisely and to produce edges
and shapes complying with details indicated.
11. Rasp or sand flush entire surface of insulation to remove irregularities projecting more
than 1/32 inch from surface of insulation and to remove yellowed areas due to sun
exposure; do not create depressions deeper than 1/16 inch.
12. Cut aesthetic reveals in outside face of insulation with high-speed router and bit
configured to produce grooves, rabbets, and other features that comply with profiles and
locations indicated. Do not reduce insulation thickness at aesthetic reveals to less than
3/4 inch.
13. Install foam shapes and attach to sheathing or structure as indicated.
14. Interrupt insulation for expansion joints where indicated.
15. Install insulation closure blocks using ribbon-and-dab method to create air zones where
indicated.
16. Form joints for sealant application by leaving gaps between adjoining insulation edges
and between insulation edges and dissimilar adjoining surfaces. Make gaps wide enough
to produce joint widths indicated after encapsulating joint substrates with base coat and
reinforcing mesh.
17. Form joints for sealant application with back-to-back casing beads for joints within EIFS
and with perimeter casing beads at dissimilar adjoining surfaces. Make gaps between
casing beads and between perimeter casing beads and adjoining surfaces of width
indicated.
18. After installing insulation and before applying field-applied reinforcing mesh, fully wrap
board edges. Cover edges of board and extend encapsulating mesh not less than 2-1/2
inches over front and back face unless otherwise indicated on Drawings.
19. Treat exposed edges of insulation as follows:
a. Except for edges forming substrates of sealant joints, encapsulate with base coat,
reinforcing mesh, and finish coat.
b. Encapsulate edges forming substrates of sealant joints within EIFS or between
EIFS and other work with base coat and reinforcing mesh.
c. At edges trimmed by accessories, extend base coat, reinforcing mesh, and finish
coat over face leg of accessories.
20. Coordinate installation of flashing and insulation to produce wall assembly that does not
allow water to penetrate behind flashing and water-/weather-resistive barrier.
B. Expansion Joints: Install at locations indicated, where required by EIFS manufacturer, and as
follows:
1. At expansion joints in substrates behind EIFS.
2. Where EIFS adjoin dissimilar substrates, materials, and construction, including other
EIFS.
3. Where wall height or building shape changes.
4. Where EIFS manufacturer requires joints in long continuous elevations.
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3.8 BASE-COAT INSTALLATION
A. Base Coat: Apply to exposed surfaces of insulation and foam shapes in minimum thickness
recommended in writing by EIFS manufacturer, but not less than 1/16-inch dry-coat thickness.
B. Reinforcing Mesh: Embed type indicated below in wet base coat to produce wrinkle-free installation
with mesh continuous at corners and overlapped not less than 2-1/2 inches or otherwise treated at
joints to comply with ASTM C 1397 and EIFS manufacturer's written instructions. Do not lap
reinforcing mesh within 8 inches of corners. Completely embed mesh, applying additional base-
coat material if necessary, so reinforcing-mesh color and pattern are not visible.
1. Standard-impact reinforcing mesh unless otherwise indicated.
2. Intermediate-impact reinforcing mesh where indicated.
3. High-impact reinforcing mesh where indicated.
4. Heavy-duty reinforcing mesh where indicated.
C. Double-Layer Reinforcing Mesh Application: Where indicated, apply second base coat and
second layer of standard or intermediate-impact reinforcing mesh, overlapped not less than 2-
1/2 inches or otherwise treated at joints to comply with ASTM C 1397 and EIFS manufacturer's
written instructions in same manner as first application. Do not apply until first base coat has
cured.
D. Additional Reinforcing Mesh: Apply strip reinforcing mesh around openings extending 4 inches
beyond perimeter. Apply additional 9-by-12-inch strip reinforcing mesh diagonally at corners of
openings (re-entrant corners). Apply 8-inch- wide strip reinforcing mesh at both inside and
outside corners unless base layer of mesh is lapped not less than 4 inches on each side of
corners.
1. At aesthetic reveals, apply strip reinforcing mesh not less than 8 inches wide.
2. Embed strip reinforcing mesh in base coat before applying first layer of reinforcing mesh.
E. Foam Shapes: Fully embed reinforcing mesh in base coat.
F. Double Base-Coat Application: Where indicated, apply second base coat in same manner and
thickness as first application except without reinforcing mesh. Do not apply until first base coat
has cured.
G. Flashing and Coping Mesh: Where horizontal surface areas at least 2 inches deep occur, slope
the surface at 1:1 minimum. In lieu of using metal or pvc coping or flashing, apply 2 layers of
high impact mesh adhered to EIFS base coat with acrylic based fiber reinforced flexible
adhesive and waterproofing, followed by a primer coat and an EIFS top coat.
3.9 FINISH-COAT INSTALLATION
A. Primer: Apply over dry base coat according to EIFS manufacturer's written instructions.
1. Panelized Components: At any ledge deeper than 2 inches provide a coating of Drivit
"Watertight" or equal product approved by Architect before finish coat is applied.
B. Finish Coat: Apply over dry primed base coat, maintaining a wet edge at all times for uniform
appearance, in thickness required by EIFS manufacturer to produce a uniform finish of color
and texture matching approved sample and free of cold joints, shadow lines, and texture
variations.
1. Texture: As selected by Architect from manufacturer's full range.
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C. Sealer Coat: Apply over dry finish coat, in number of coats and thickness required by EIFS
manufacturer.
D. Surfaces that project more than 2 inches and have slope shall be coated with two additional coats of
base coat materials as referenced in 2.2.I. above.
3.10 EIFS PANEL COMPONENT FABRICATION
A. Prefabricate panels of proper thickness and configuration for each individual component.
1. Shape and size each component per Architect reviewed shop drawings.
2. Apply base and finish coats per subsections 3.7, 3.8, 3.9 of this specification section.
B. Attachment Channels:
1. Score channel grooves into back of panel at locations indicated reviewed shop drawings.
2. Insert specified aluminum hat channel into adhesive covered grooves.
a. Use designated adhesive.
3.11 INSTALLATION OF EIFS PANEL COMPONENTS
A. Align and mark panel channel attachment points on building substrate.
B. Install at locations indicated.
1. EIFS installer shall engineer and provide panel component attachment points.
C. Anchor panels to substrate with 1 1/4 inch S12 self-drilling galvanized screws. Align panel
components and anchor through substrate into panel component.
3.12 INSTALLATION OF JOINT SEALANTS
A. Prepare joints and apply sealants, of type and at locations indicated, to comply with applicable
requirements in Division 07 Section "Joint Sealants" and in ASTM C 1481.
1. Apply joint sealants after base coat has cured but before applying finish coat.
2. Clean surfaces to receive sealants to comply with indicated requirements and EIFS
manufacturer's written instructions.
3. Apply primer recommended in writing by sealant manufacturer for surfaces to be sealed.
4. Install sealant backing to control depth and configuration of sealant joint and to prevent
sealant from adhering to back of joint.
5. Apply masking tape to protect areas adjacent to sealant joints. Remove tape
immediately after tooling joints, without disturbing joint seal.
6. Recess sealant sufficiently from surface of EIFS so an additional sealant application,
including cylindrical sealant backing, can be installed without protruding beyond EIFS
surface.
3.13 QUALITY CONTROL
A. Special Inspections: Owner will engage a qualified special inspector to perform the following
special inspections:
1. According to ICC-ES AC235.
B. Testing Agency: Owner will engage a qualified testing agency to perform tests and inspections.
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C. EIFS Tests and Inspections: For the following:
1. According to ICC-ES AC235.
D. Remove and replace EIFS where test results indicate that EIFS do not comply with specified
requirements.
E. Prepare test and inspection reports.
3.14 CLEANING AND PROTECTION
A. Remove temporary covering and protection of other work. Promptly remove coating materials from
window and door frames and other surfaces outside areas indicated to receive EIFS coatings.
END OF SECTION 07 24 13