CONSTRUCTION STANDARD SPECIFICATION

SECTION 07240

[EXTERIOR INSULATION AND FINISH SYSTEMS-class pb]{.underline}

[Page]{.underline}

PART 1 - GENERAL

1.01 Summary [2](#summary)

1.02 References [2](#references)

1.03 Definitions [4](#definitions)

1.04 System Description [4](#system-description)

1.05 Submittals [4](#submittals)

1.06 Quality Assurance [6](#quality-assurance)

1.07 Delivery, Storage, And Handling [7](#delivery-storage-and-handling)

1.08 Project Conditions [7](#project-conditions)

1.09 Warranty [7](#warranty)

PART 2 - PRODUCTS

2.01 Manufacturers [7](#manufacturers)

2.02 Materials [8](#materials)

2.03 Mixing [9](#mixing)

PART 3 - EXECUTION

3.01 Examination [9](#examination)

3.02 Preparation [9](#preparation)

3.03 Installation Of Insulation [10](#installation-of-insulation)

3.04 Base Coat [11](#base-coat)

3.05 Finish Coat [12](#finish-coat)

3.06 Installation Of Joint Sealants
[12](#installation-of-joint-sealants)

3.07 Cleaning [12](#cleaning)

3.08 Protection [13](#protection)

CONSTRUCTION STANDARD SPECIFICATION

SECTION 07240

[EXTERIOR INSULATION AND FINISH SYSTEMS-CLASS PB]{.underline}

# PART 1 - GENERAL

## 1.01 SUMMARY

Location and extent of exterior insulation finish system is indicated on
Contract documents.

A. Section includes the following:

1\. Applications over concrete surfaces.

2\. Applications over masonry surfaces.

3\. Applications over gypsum surfaces.

B. Related Sections: Refer to the following:

1\. Section 03300, "Cast-In-Place Concrete" for concrete substrates
behind system.

2\. Section 04220, "Concrete Masonry Unit" for masonry substrates behind
system.

3\. Section 05400, "Cold-Formed Metal Framing" for steel stud framing
behind system.

4\. Section 07900, "Joint Sealants" for sealing joints in system with
elastomeric joint sealants.

5\. Section 09250, "Gypsum Drywall" for Glass-Mat Gypsum sheathing
board.

## 1.02 References

A. American Society of Testing and Materials (ASTM)

A653 Specification for Steel Sheet, Zinc-Coated (Galvanized) or
Zinc-Iron Alloy-Coated (Galvannealed) by the Hot-Dip Process

B117 Test Method of Salt Spray (Fog)

C67 Method of Sampling and Testing Brick and Structural Clay Tile

C150 Specification for Portland Cement

C297 Test Method for Tensile Strength of Flat Sandwich Constructions in
Flatwise Plane

C578 Specification for Rigid, Cellular Polystyrene Thermal Insulation

D578 Specification for Glass Fiber Yarns

D968 Test Method for Abrasion Resistance of Organic Coatings by Falling
Abrasive

D2247 Practice for Testing Water Resistance of Coatings in 100% Relative
Humidity

D3273 Test Method for Resistance to Growth of Mold on the Surface of
Interior Coatings in an Environmental Chamber

E84 Test Method for Surface Burning Characteristics of Building
Materials

E108 Method for Fire Tests of Roof Coverings

E119 Method for Fire Tests of Building Construction and Materials

E330 Test Method for Structural Performance of Exterior Windows, Curtain
Walls, and Doors by Uniform Static Air Pressure Difference

E331 Test Method for Water Penetration of Exterior Windows, Curtain
Walls, and Doors by Uniform Static Air Pressure Difference

G23 Practice for Operating Light-Exposure Apparatus (Carbon-Arc Type)
With and Without Water for Exposure of Nonmetallic Materials

G53 Recommended Practice for Operating Light- and Water-Exposure
Apparatus (Fluorescent UV-Condensation Type) for Exposure of Nonmetallic
Materials

B. Building Officials and Code Administrators International (BOCA)

1993 National Building Code Combustible Materials On The Exterior Side
of Section 1406.0 Exterior Walls

C. Exterior Insulation Manufacturers Association (EIMA)

101.01 Test Method for Freeze-Thaw Resistance of Exterior Insulation and
Finish Systems (EIFS), Class PB (Modified ASTM C67)

101.02 Test Method for Resistance to Water Penetration of Exterior
Insulation and Finish Systems (EIFS), Class PB (Modified ASTM E331)

101.03 Test Method for Determining Tensile Adhesion Strength of an
Exterior Insulation and Finish System (EIFS), Class PB, and Components
(Modified ASTM C297)

101.86 Test Method for Resistance of Exterior Insulation and Finish
Systems, Class PB, to the Effects of Rapid Deformation (Impact)

105.01 Test Method for Alkali Resistance of Glass Fiber Reinforcing Mesh
for Use in Exterior Insulation and Finish Systems (EIFS), Class PB

Guideline Specification for Expanded Polystyrene (EPS) Insulation Board

D. International Building Code (IBC)

Method of Test for the Evaluation of Flammability Characteristics of
Exterior Nonload-bearing Wall Panel Assemblies Using Foam Plastic
Insulation

## 1.03 Definitions

A. Exterior Insulation and Finish Systems (EIFS): Exterior assemblies
composed of inner layer of board insulation, outer layer composed of
glass-fiber-mesh-reinforced base coat applied directly to board
insulation, and protective finish coat.

B. Designation PB: Polymer-based (PB) class of exterior insulation and
finish system based on classification developed by EIFS Industry Members
Association (EIMA).

C. System: Refers to Class PB exterior insulation and finish systems.

> D. [Beneficial Occupancy]{.underline}:  The point at which the Project
> Team determines the facility or area can be occupied from both a
> regulatory and work function standpoint.

 

> E. [Construction Complete]{.underline}: The point at which the Project
> Team determines the requirements of the Construction Phase including
> the construction contract are fulfilled. This includes the resolution
> of any open items.
>
>  
>
> F. [Project Complete]{.underline}: The point at which the Project Team
> determines that all project activities are completed, closed, and/or
> approved for normal operations.

## 1.04 SYSTEM DESCRIPTION

System shall meet or exceed the following requirements:

**[Test Method Acceptance Criteria]{.underline}**

  ----------------- ------------------ ----------------------------------
  Abrasion          ASTM D968          No cracking, checking or loss of
  Resistance                           film integrity at 528-quarts (500
                                       liters) of sand.

  Accelerated       ASTM G23 or G53    No deleterious effects\* after
  Weathering                           2,000-hours when viewed under 5x
                                       magnification.

  Freeze/Thaw       EIMA 101.01        60 cycles. No deleterious
  Resistance        (Modified ASTM     effects.\*
                    C67)               

  Mildew Resistance ASTM D3273         No growth supported during 28-day
                                       exposure period.

  Salt Spray        ASTM B117          No deleterious effects\* at
  Resistance                           300-hour exposure.

  Tensile Adhesion  EIMA 101.03        No failure in the adhesive, base
                    (Modified ASTM     coat or finish coat. Minimum 5 psi
                    C297)              (34.5 kPa) tensile strength before
                                       and after freeze/thaw and
                                       accelerated weathering tests.

  Water Penetration EIMA 101.02        No water penetration beyond the
                    (Modified ASTM     plane of the base coat/EPS board
                    E331)              interface after 15-minutes at 6.24
                                       psf (299 Pa), or 20% of positive
                                       design wind pressure, whichever is
                                       greater.

  Water Resistance  ASTM D2247         No deleterious effects\* at 14-day
                                       exposure.

  Impact Resistance EIMA 101.86        Standard: 25-49 in-lb (2.83-5.54
                                       J)

  Wind Load         ASTM E330          Withstand negative and positive
                                       wind loads required by applicable
                                       building code.
  ----------------- ------------------ ----------------------------------

\* No deleterious effects: No cracking, checking, crazing, erosion,
rusting, blistering, peeling, or delamination.

## 1.05 Submittals

A. General: Submit the following in accordance with conditions of
Contract and Section 01300, "Descriptive Submittals."

B. Product Data: Submit manufacturer's catalog product data for each
component required, including manufacturer's installation instructions.

C. Shop drawings showing fabrication and installation of system
including plans, elevations, sections, details of components, joint
locations, configurations, and attachments to other units of work.

D. Samples for initial selection in the form of manufacturer's color
charts and small-scale samples consisting of actual units or sections of
units showing full range of colors, textures, and patterns available for
each type of textural choices indicated.

E. Samples for verification in the form of 24 inch (610 mm) square
panels for each finish, color, texture, and pattern specified. Prepare
samples using same tools and techniques intended for actual work.
Maintain samples at job site until substantial completion.

F. Product test reports from qualified independent testing agency
evidencing compliance of EIFS with requirements based on comprehensive
testing of current products.

G. Certificate of Compliance: System manufacturer's certificate of
compliance with EIMA standards.

H. Installer Certification: Submit certificates signed by system
manufacturer certifying that Installers are qualified to install
manufacturers system.

## 1.06 QUALITY ASSURANCE

A. Installer Qualifications: Engage experienced installer who has
completed systems similar in material, design, and extent to that
indicated for Project and with record of successful in-service
performance.

B. Manufacturer's Qualifications: Firm experienced in manufacturing
systems similar to those indicated for Project, and that has record of
successful in-service performance for minimum of three (3) years.

C. Fire-Test-Response Characteristics: Provide materials and
construction that are identical to those tested with the following
fire-test-response characteristics, as determined by testing per ASTM
test method indicated below, by UL or other testing and inspecting
agencies acceptable to authorities having jurisdiction. Identify
products with appropriate markings of applicable testing and inspecting
agency.

1\. Flame Spread of Insulation Board and Finish Coats: 25 or less when
tested individually per ASTM E84.

2\. Smoke Developed of Insulation Board and Finish Coats: 450 or less
when tested individually per ASTM E84.

3\. Full-Scale Multistory Fire Test: Tested mockup, representative of
completed multistory wall assembly of which system is a part, complies
with UBC Standard 26-4 for test method and required fire-test-response
characteristics of exterior nonload-bearing wall panel assemblies
containing foam plastic insulation.

4\. Full-Scale Fire Test: Tested mockup that represents completed wall
assembly of which system is a part, shows no tendency to propagate flame
over surface or through finish to core, or to cause delamination of
finish when vertically mounted exterior face is exposed 15 minutes to
fire source using spread of flame test per ASTM E108 modified for
testing vertical walls.

5\. Radiant Heat Exposure, Unrestricted Installation: Tolerable level of
incident radiant heat energy of at least 12.5 kW/sq. m. when tested
according to BOCA National Building Code Section 1406.0.

6\. Fire Resistance Characteristics: Provide materials and construction
identical to those of assemblies whose fire resistance has been
determined per ASTM E119 by testing and inspecting agency acceptable to
authorities having jurisdiction.

D. Single-Source Responsibility: Obtain materials for system from one
source and by single manufacturer, or by manufacturers approved by
system manufacturer as compatible with other system components.

E. Compatibility Requirements: System manufacturer shall certify that
system is suitable for use with substrates indicated herein and in
Contract documents.

## 1.07 DELIVERY, STORAGE, AND HANDLING

A. Deliver materials in original unopened packages, containers, or
bundles with manufacturer's labels intact and legible.

B. Store materials inside, under cover and in manner to keep them dry,
protected from freezing and inclement weather, direct sunlight, surface
contamination, aging, corrosion, and damage from construction traffic
and other causes.

Stack insulation board flat and off the ground.

C. Remove wet, frozen, or deteriorated materials from site.

## 1.08 Project Conditions

A. Environmental Conditions: Do not install system when ambient outdoor
air and substrate temperatures are 40°F (4°C) and falling, unless
temporary protection and heat are provided to maintain ambient
temperatures above 40°F (4°C) during installation of wet materials and
until they have dried thoroughly and become weather resistant, but for
not less than 24 hours after installation.

B. Hot-Weather Limits: As recommended by system manufacturer and
depending upon air temperature, relative humidity, wind speed, and
exposure to sun.

C. Do not install coatings when conditions are outside of specified
limits.

D. Partially completed work or work not fully cured that is exposed to
the elements in excess of manufacturer's recommendations may be
rejected.

## 1.09 WARRANTY

Provide system manufacturer's standard labor and material warranty, but
in no case less than five (5) years from date of substantial completion.
Warranty shall be in addition to, and not a limitation of other rights
Owner may have under Contract documents.

# PART 2 - PRODUCTS

## 2.01 Manufacturers

Manufacturers: Subject to compliance with requirements, products by the
following manufacturers are acceptable. However, it is Contractor's
responsibility to provide only products compatible with adjacent
materials in assembly.

Dryvit Systems, Inc.

El Rey

Pleko Products, Inc.

Senergy, Inc.

Sto Industries

## 2.02 MATERIALS

A. Compatibility: Provide adhesive, board insulation, reinforcing
fabrics, base and finish coat materials, sealants, and accessories that
are compatible with one another and approved for use by system
manufacturer.

B. Primer: Manufacturer's recommended primer.

C. Adhesive: Manufacturer's recommended adhesive.

D. Portland Cement: ASTM C150 Type I or Type II.

E. Expanded Polystyrene Foam Plastic Board Insulation: ASTM C578 Type I;
Rigid cellular thermal insulation formed by expansion of polystyrene
resin beads or granules in closed mold, approved by system manufacturer
for material qualities including corner squareness, other dimensional
tolerances, and the following:

Provide insulation in boards not more than 24 inches x 48 inches (610 mm
x 1219 mm) and in thickness indicated, but not less than that allowed by
system manufacturer, nor more than 4 inches (102 mm).

F. Reinforcing Fabric: ASTM D578, alkali-resistant glass-fiber fabric
manufactured especially for use in EIFS.

1\. Standard Reinforcing Fabric: Minimum 4.0 oz/sq. yd. (136 g/sq. m).

2\. Strip Reinforcing Fabric: Minimum 3.75 oz/sq. yd. (127g/sq. m).

G. Base Coat: Manufacturer's recommended one component base coat.

H. Surface Conditioner: Manufacturer's recommended surface conditioner,
tinted to match finish coat color.

I. Finish Coat: Manufacturer's recommended factory-mixed, textured,
integrally colored finish coating.

1\. Color: Selected at time of submittals from manufacturer's standard
color chart.

2\. Finish Texture: Selected at time of submittals from manufacturer's
full range of standard textures.

J. Clear Sealer Topcoating: Clear acrylic coating.

K. Trim Accessories: As required by system manufacturer.

Galvanized Steel: ASTM A653, G60 coating minimum.

L. Water: Potable, clean, fresh, and free from oil, acid, organic matter
or other deleterious substances.

M. Mechanical Fastener Assemblies: System manufacturer's standard
corrosion-resistant fastener assemblies, consisting of thermal cap,
system manufacturer's standard washer and shaft attachments, and
fasteners.

Select fasteners for pullout, tensile, and shear strength properties
required to resist design loads of application indicated, capable of
pulling fastener head below surface of insulation board.

N. Sealants: Provide system manufacturer's recommended chemically
curing, elastomeric sealant that is compatible with joint fillers, joint
substrates, and other related materials and complies with requirements
of Section 07900, "Joint Sealants."

## 2.03 MIXING

Mix materials in accordance with manufacturer's instructions, using only
manufacturer-approved materials in the instructed quantities. Use only
freshly mixed materials. Apply materials within the time prescribed by
the manufacturer and without retempering, unless specifically approved.

# PART 3 - EXECUTION

## 3.01 Examination

A. General: Sandia National Laboratories (SNL) Construction Observer and
Installer shall examine substrates, to determine if they are in
satisfactory condition for installation of system. Do not proceed with
installation of system until unsatisfactory conditions have been
corrected.

B. New Concrete Substrates: Cured at least 28 days and free of form
release agents or other contaminants that affect adhesion.

C. New Masonry Substrates: Cured at least 28 days and joints finished
flush.

## 3.02 Preparation

A. Protection

1\. Protect contiguous work from moisture deterioration and soiling
resulting from application of systems. Provide temporary covering and
other protection needed to prevent spattering of exterior finish
coatings on other work.

2\. Protect system, substrates, and wall construction behind them from
inclement weather during installation. Prevent infiltration of moisture
behind system and deterioration of substrates.

B. Surface Preparation: Prepare and clean substrates to comply with
system manufacturer's requirements to obtain optimum bond between
substrate and adhesive for insulation.

1\. Apply primer-sealer over substrates where required by system
manufacturer for improving adhesion or for protecting substrates from
premature degradation.

2\. Clean substrates, removing contamination such as oil, form-release
agents, waxes, paint, dust, and dirt. Use methods appropriate to type of
substrate and contamination encountered, such as scrubbing with
detergents, acid etching, scarification, and sandblasting.

3\. Concrete Substrates; Remove fins and projections. Fill voids and
even out irregularities with paste of neat cement grout or, if
recommended by system manufacturer, with adhesive or base coat material.

4\. Masonry Substrates: Where other than flush joints are encountered,
apply leveling course to fill joints flush.

5\. Existing Painted Substrates: Remove paint down to clean, sound,
paint-free substrate over at least 90 percent or surface area. Use
method that does not damage substrate.

6\. Surface Leveling: Where required, or where specified, in order to
produce uniform planar substrate for application of insulation board,
apply adhesive mixture as leveling coat to true the surface.

## 3.03 Installation OF INSULATION

A. General: Comply with manufacturer's current published instructions
for installation of system as applicable to each type of substrate.

B. Apply trim accessories at perimeter of system, at expansion joints,
and elsewhere, as indicated on Contract documents. Use drip screed at
bottom edge of system unless otherwise indicated. Use casing beads at
other locations.

C. Attach insulation with adhesive unless mechanical attachment is
recommended by manufacturer, to comply with the following requirements:

1\. Apply adhesive to insulation by notched trowel method in manner that
results in adhesive coating entire surface of gypsum sheathing once
insulation is adhered to sheathing, unless system manufacturer's
instructions specify use of primer-sealer in combination with ribbon and
dab method.

2\. Allow adhered insulation to remain undisturbed for period prescribed
by system manufacturer, but not less than 24 hours, prior to beginning
rasping and sanding insulation or application of base coat and
reinforcing fabric.

3\. Apply insulation boards over dry substrates in courses with long
edges oriented horizontally. Begin first course from drip screed and
work upward. Work from perimeter casing beads toward interior of panels
when possible. Apply thin coat of adhesive to edges of insulation before
inserting into trim accessories.

4\. Stagger vertical joints in successive courses to produce running
bond pattern. Locate joints so that no piece of insulation is less than
12 inches (305 mm) wide or 6 inches (152 mm) high. Offset joints at
least 6 inches (152 mm) from corners of windows and door openings.

a\. Offset joints of insulation at least 4 inches (102 mm) from joints
in sheathing.

b\. Offset joints of insulation at least 4 inches (102 mm) from
decorative grooves (false joints).

5\. Interlock ends at internal and external corners.

6\. Abut boards tightly at joints within and between each course to
produce flush, continuously even surfaces without gaps or raised edges
between insulation boards. If gaps occur, fill with insulation cut to
fit gaps exactly; insert without use of adhesive.

7\. Cut insulation to fit openings, corners, and projections precisely
and to produce edges and shapes conforming to details indicated.

8\. Rasp or sand flush entire surface of insulation to remove
irregularities projecting more than 1/16 inch (1.6 mm) from surface of
insulation and to remove yellowed areas due to sun exposure; do not
create depressions deeper than 1/16 inch (1.6 mm).

9\. Cut grooves , rabbets, and other features in outside face of
insulation with high-speed router and bit configured to produce grooves,
rabbets, and other features that conform accurately to profiles and
locations indicated. Do not reduce insulation thickness at features to
less than 3/4 inches (19 mm).

10\. Interrupt insulation where expansion joints are indicated in
substrates behind EIFS.

11\. Form joints for sealant application with back-to-back casing beads
for joints within system 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.

12\. Treat exposed edges of insulation board, including those forming
substrates of sealed joints within system or between system and other
work, by encapsulating with base coat, reinforcing fabric, and finish
coat, unless otherwise indicated.

## 3.04 BASE COAT

A. General: Apply base coat to exposed surfaces of insulation in minimum
overall thickness specified by system manufacturer, but no less than
1/16 inch (1.6 mm) when dry.

B. Embed standard reinforcing fabric in wet base coat to produce
wrinkle-free installation with fabric continuous or lapped at corners
and lapped or otherwise treated at joints to comply with system
manufacturer's requirements.

Completely embed fabric, applying additional base coat material if
necessary, so that reinforcing fabric pattern is not visible.

C. Additional Strip Reinforcing Fabric: Apply strip reinforcing fabric
around openings extending 4 inches (102 mm) beyond perimeter.

1\. Apply additional 8 inch x 16 inch (203 mm x 406 mm) strip
reinforcing fabric diagonally at corners of openings (re-entrant
corners).

2\. Apply 8 inch (203 mm) wide strip reinforcing at both inside and
outside corners unless base layer of fabric is lapped at least 4 inches
(102 mm) on each side of corners.

3\. At decorative grooves (false joints), apply strip reinforcing at
least 8 inches (203 mm) wide.

4\. Embed strip reinforcing fabric in base coat before applying first
layer of reinforcing fabric.

## 3.05 FINISH COAT

A. Apply manufacturers recommended surface conditioner to surfaces to
receive finish coats when required.

B. Apply finish coat over dry base coat in thickness required by system
manufacturer to produce uniform finish of texture and color matching
approved samples.

## 3.06 INSTALLATION OF JOINT SEALANTS

A. General: Prepare joints and apply sealants, of type and at locations
indicated, to comply with applicable requirements of Section 07900,
"Joint Sealants."

B. Clean surfaces to receive sealants to comply with indicated
requirements and system manufacturer's recommendations.

C. Apply primer recommended by sealant manufacturer for surfaces to be
sealed.

D. Install sealant backing to control depth and configuration of sealant
joint and to prevent sealant from adhering to back of joint.

E. Apply masking tape to protect areas adjacent to sealant joints.
Remove tape immediately after tooling joints without disturbing joint
seal.

## 3.07 CLEANING

A. Clean finished surfaces in a timely manner if required in order to
prevent permanent discoloration.

B Remove accumulated dirt from finished surfaces prior to substantial
completion but after completion of adjacent abutting horizontal surface
construction (such as pavements) and after establishment of adjacent
turf.

C. If discoloration or contamination occurs and cannot be removed, or if
system suffers damage prior to substantial completion, then restore, or
remove and replace, affected portions (reworking entire planar surfaces
as necessary to conceal reworked area), using manufacturer's recommended
restoration coatings or new materials meeting the requirements of this
specification.

## 3.08 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 system coatings.

B. Provide final protection and maintain conditions in manner acceptable
to Installer and system manufacturer that ensures system's being without
damage or deterioration at time of substantial completion.

END OF SECTION