home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Spec Disk 1998 Spring 4.0
/
Spec Disk 1998 Spring 4.0.iso
/
text
/
07240sto.txt
< prev
next >
Wrap
Text File
|
1998-06-10
|
45KB
|
1,006 lines
SECTION 07240
EXTERIOR INSULATION AND FINISH SYSTEM
NOTE ** Sto Finish Systems Toughwall Class PM, Class PB,
and RainScreen EIF Systems.
NOTE **
NOTE ** This section is based on products manufactured by
Sto Finish Systems Division of Sto Corporation,
which is located at the following address:
NOTE ** P.O. Box 44609
NOTE ** Atlanta GA 30336-5609
NOTE ** Tel: (800) 221-2397
NOTE ** Tel: (404) 346-3666
NOTE ** Fax: (404) 346-3119
NOTE **
NOTE ** Systems specified in this section are not for
installation on substrates subjected to
intermittent or constant hydrostatic pressure; for
below-grade installations, specify Sto Flexyl.
NOTE **
NOTE ** Design sloped surfaces at 1:2 (27 degrees) minimum,
and minimum 12 inches (300 mm) width; increased
slope is required in climates where ice or snow
accumulation is likely - the application of StoMesh
embedded in Sto Flexyl is also required.
NOTE **
NOTE ** For specific project conditions, consult the
manufacturer's detail manual or technical
representative.
NOTE **
NOTE ** SECTION 07240 - EXTERIOR INSULATION AND FINISH
SYSTEM, Copyright 1997, The Architect's Catalog,
Inc.
PART 1 GENERAL
1.1 SECTION INCLUDES
A. Exterior Insulation and Finish System (EIFS), Class PM,
in accordance with EIMA (PM).
B. Exterior Insulation and Finish System (EIFS), Class PB,
in accordance with EIMA (PB).
C. Exterior Insulation and Finish System (EIFS), Class PB,
in accordance with EIMA (PB), with drainage cavity and
secondary weather-resistive barrier.
1.2 RELATED SECTIONS
NOTE ** Delete any sections below not relevant to this
project; add others as required.
A. Section 03300 - Cast-In-Place Concrete.
B. Section 04810 - Unit Masonry Assemblies.
C. Section 05400 - Cold Formed Metal Framing.
D. Section 06100 - Rough Carpentry.
E. Section 07620 - Sheet Metal Flashing and Trim.
F. Section 07900 - Joint Sealers.
G. Section 09260 - Gypsum Board Assemblies.
1.3 REFERENCES
NOTE ** Delete references from the list below that are not
actually required by the text of the edited
section.
A. ASTM B 117 - Standard Practice for Operating Salt Spray
(Fog) Testing Apparatus.
B. ASTM C 67 - Standard Test Methods for Sampling and
Testing Brick and Structural Clay Tile.
C. ASTM C 150 - Standard Specification for Portland Cement.
D. ASTM C 297 - Standard Test Method for Tensile Strength of
Flat Sandwich Constructions in Flatwise Plane.
E. ASTM C 578 - Standard Specification for Rigid, Cellular
Polystyrene Thermal Insulation.
F. ASTM C 1063 - Standard Specification for Installation of
Lathing and Furring to Receive Interior and Exterior
Portland Cement-Based Plaster.
G. ASTM D 226 - Standard Specification for Asphalt-Saturated
Organic Felt Used in Roofing and Waterproofing.
H. ASTM D 968 - Standard Test Methods for Abrasion
Resistance of Organic Coatings by Falling Abrasive.
I. ASTM D 1784 - Standard Specification for Rigid PolyVinyl
Chloride (PVC) Compounds and Chlorinated PolyVinyl
Chloride (CPVC) Compounds.
J. ASTM D 2247 - Standard Practice for Testing Water
Resistance of Coatings in 100% Relative Humidity.
K. ASTM D 3273 - Standard Test Method for Resistance to
Growth of Mold on the Surface of Interior Coatings in an
Environmental Chamber.
L. ASTM D 4258 - Standard Practice for Surface Cleaning
Concrete for Coating.
M. ASTM D 4261 - Standard Practice for Surface Cleaning
Concrete Unit Masonry for Coating.
N. ASTM E 84 - Standard Test Method for Surface Burning
Characteristics of Building Materials.
O. ASTM E 108 - Standard Test Methods for Fire Tests of Roof
Coverings.
P. ASTM E 119 - Standard Test Methods for Fire Tests of
Building Construction and Materials.
Q. ASTM E 330 - Standard Test Method for Structural
Performance of Exterior Windows, Curtain Walls, and Doors
by Uniform Static Air Pressure Difference.
R. ASTM E 331 - Standard Test Method for Water Penetration
of Exterior Windows, Curtain Walls, and Doors by Uniform
Static Air Pressure Difference.
S. ASTM E 695 - Standard Method of Measuring Relative
Resistance of Wall, Floor, and Roof Construction to
Impact Loading.
T. ASTM G 23 - Standard Practice for Operating Light-
Exposure Apparatus (Carbon-Arc Type) With and Without
Water for Exposure of Nonmetallic Materials.
U. ASTM G 53 - Standard Practice for Operating Light- and
Water-Exposure Apparatus (Fluorescent UV-Condensation
Type) for Exposure of Nonmetallic Materials.
V. BOCA National Building Code, Section 1406.0; Building
Officials and Code Administrators International (BOCA).
W. C & I 2000 - Carry & Ivey Test Method 2000 for Drainage
Performance of Exterior Finish Systems.
X. EIMA 101.01 - Standard Test Method for Freeze-Thaw
Resistance of Exterior Insulation and Finish Systems
(EIFS), Class PB (modified ASTM C 67); EIFS Industry
Members Association (EIMA).
Y. EIMA 101.02 - Standard Test Method for Resistance to
Water Penetration of Exterior Insulation and Finish
Systems (EIFS), Class PB (modified ASTM E 331); EIFS
Industry Members Association (EIMA).
Z. EIMA 101.03 - Standard Test Method for Determining
Tensile Adhesion Strength of Exterior Insulation and
Finish Systems (EIFS) and Components, Class PB (modified
ASTM C 297); EIFS Industry Members Association (EIMA).
AA. EIMA 101.86 - Standard Test Method for Resistance of
Exterior Insulation and Finish Systems (EIFS), Class PB,
to the Effects of Rapid Deformation (Impact); EIFS
Industry Members Association (EIMA).
BB. EIMA 105.01 - Standard Test Method for Alkali Resistance
of Glass Fiber Reinforcing Mesh Used in Exterior
Insulation and Finish Systems (EIFS), Class PB; EIFS
Industry Members Association (EIMA).
CC. EIMA 300.01 - Guide for Use of Sealants with Exterior
Insulation and Finish System (EIFS), Class PB; EIFS
Industry Members Association (EIMA).
DD. EIMA (PB) - Guideline Specification for Exterior
Insulation and Finish System (EIFS), Class PB; EIFS
Industry Members Association (EIMA).
EE. EIMA (PM) - Guideline Specification for Exterior
Insulation and Finish System (EIFS), Class PM; EIFS
Industry Members Association (EIMA).
FF. EIMA Guideline Specification for Expanded Polystyrene
(EPS) Insulation Board; EIFS Industry Members Association
(EIMA).
GG. GA-253 - Application of Gypsum Sheathing; Gypsum
Association (GA).
HH. GA-600 - Fire Resistance Design Manual; Gypsum
Association (GA).
II. MIL-STD-810 - Environmental Test Methods and Engineering
Guidelines; Fungus.
JJ. SBCCI Standard Building Code, Section 2603.5; Southern
Building Code Congress International (SBCCI).
KK. UBC Standard 26-4 (formerly UBC 17-6) - Method of Test
for the Evaluation of Flammability Characteristics of
Exterior, Nonload-Bearing Wall Panel Assemblies Using
Foam Plastic Insulation; Uniform Building Code;
International Conference of Building Officials (ICBO).
1.4 SUBMITTALS
A. Submit under provisions of Section 01300.
B. Product Data: Manufacturer's descriptive literature and
specifications for components of specified EIF systems,
demonstrating compliance of products to specified
requirements.
NOTE ** Delete the following paragraph if specifying custom
colors or finishes.
C. Selection Samples: For each finish coating specified,
two sets of color chips representing manufacturer's full
range of available colors and finishes.
D. Verification Samples: For each color and finish
selected, two samples, minimum size 8 inches (200 mm)
square, representing actual color and finish of products
to be installed.
E. Test reports: Certified reports from independent testing
laboratory supporting compliance of EIF systems to
specified requirements.
F. Manufacturer Qualifications.
G. Installer Qualifications: Include list of previous
projects which identifies the following for each
project:
1. Project location and date of completion.
2. Architect's name, address, and telephone number.
3. Owner's name, address, and telephone number.
H. Specimen of manufacturer's warranty documents.
I. Manufacturer's printed installation instructions for each
specified product, including product storage requirements
and recommendations for specific project conditions.
J. Operation and Maintenance Data: Manufacturer's printed
instructions and recommendations for maintaining and
cleaning of finish coatings.
1.5 QUALITY ASSURANCE
A. Manufacturer Qualifications: Minimum fifteen years
documented experience as single-source producer of
products specified in this section, and current member in
good standing of Sealant Waterproofing and Restoration
Institute (SWRI).
B. Installer Qualifications: Minimum three years documented
experience installing finishes specified in this section,
capable of demonstrating successful completion of a
minimum of three previous projects of similar size and
complexity indicated in the Contract Documents, and
employing applicators having minimum three years
experience applying products specified in this section.
C. Mock-Up: Construct mock-up for each specified finish
coating color and texture, using materials specified in
this section.
NOTE ** Retain one of the following two sub-paragraphs.
1. Construct mock-up as directed, at location indicated
or directed.
2. Construct mock-up at location indicated or directed,
size __ feet (__ m) by __ feet (__ mm).
3. Obtain Architect's acceptance of mock-up before
beginning construction activities of this section;
accepted mock-up will be standard by which completed
construction activities of this section is judged.
NOTE ** Retain one of the following two sub-paragraphs.
4. Mock-ups may not remain as part of Work.
5. Accepted mock-ups may remain as part of Work.
NOTE ** Delete the following paragraph if not required.
D. Pre-Installation Meeting:
1. Convene at job site seven calendar days prior to
scheduled beginning of construction activities of
this section to review requirements of this section.
2. Require attendance by representatives of the
following:
a. Installer of this section.
b. Other entities directly affecting, or affected
by, construction activities of this section.
3. Notify Architect four calendar days in advance of
scheduled meeting date.
1.6 DELIVERY, STORAGE, AND HANDLING
A. Store products of this section in manufacturer's unopened
packaging until installation.
B. Maintain storage area conditions for products of this
section in accordance with manufacturer's instructions
until installation.
1.7 PROJECT CONDITIONS
A. Do not apply coating materials to exterior surfaces until
ambient temperature, and surface temperature of surfaces
to receive coating materials, is above 40 degrees F (4
degrees C) and is expected to remain so for 24 hours
after application of finish coating.
1.8 SEQUENCING
NOTE ** Retain paragraphs that apply to project.
A. Sequence construction activities of this section with
construction activities of other sections to prevent
penetration of substrates after application of finish
coatings, and to prevent damage to finish coatings by
subsequent construction activities.
B. Ensure that sheet metal flashings and trim adjacent to
EIF system installations are installed immediately after
finish coating has dried.
C. Ensure that joint sealers adjacent to EIF system
installations are installed immediately after finish
coating has dried.
1.9 WARRANTY
A. Manufacturer's Warranty: Manufacturer's standard
warranty against defects in materials.
PART 2 PRODUCTS
2.1 MANUFACTURERS
A. Acceptable Manufacturer: Sto Finish Systems Division of
Sto Corporation; P.O. Box 44609, Atlanta, GA 30336-5609;
ASD. Tel: (800) 221-2397 or (404) 346-3666, Fax: (404)
346-3119.
NOTE ** Delete one of the two following paragraphs;
coordinate with Division 1 requirements.
B. Requests for substitution will be considered in
accordance with provisions of Section 01600.
C. Substitutions: Not permitted.
D. Unless otherwise specified for an individual product or
material, supply all products specified in this section
from the same manufacturer.
NOTE ** Select one of the following three systems and
delete the other articles. If more than one system
is required on the project, use the Schedule at the
end of the section to identify locations of each,
or indicate locations on the drawings.
2.2 EXTERIOR INSULATION AND FINISH SYSTEM - CLASS PM
A. Exterior Insulation and Finish System: Sto Toughwall
Class PM System, with the following properties:
1. Listed in GA-600.
2. Abrasion resistance, when tested in accordance with
ASTM D 968: No cracking, checking, or loss of film
integrity at 528 quarts (500 l) sand.
3. Accelerated weathering resistance, when tested in
accordance with ASTM G 23 or ASTM G 53: No
deleterious effects at 5-power magnification after
2000 hours.
4. Freeze/thaw resistance, when tested in accordance
with EIMA 101.01: No deleterious effects after 50
cycles.
5. Mildew resistance, when tested in accordance with Mil
Std 810, Method 508: No growth supported after 28
days.
6. Salt spray resistance, when tested in accordance with
ASTM B 117: No deleterious effects after 300 hours.
7. Water penetration, when tested in accordance with
ASTM E 331: No water penetration.
8. Water resistance, when tested in accordance with ASTM
D 2247: No deleterious effects after 14 days.
9. Fire resistance rating effect on wall assembly, when
tested in accordance with ASTM E 119: No change.
10. Full-scale diversified fire test, in accordance with
ASTM E 108 (modified): No significant contribution
to vertical or horizontal flame spread.
11. Full-scale multi-story fire test, in accordance with
UBC Std 26-4: Pass the following:
a. Resistance to vertical spread of flame within
core of panel from one story to the next.
b. Resistance to flame propagation over exterior
surface.
c. Resistance to vertical spread of flame interior
surface from one story to the next.
d. Resistance to significant lateral spread of flame
from compartment of fire origin to adjacent
spaces.
12. Radiant heat exposure, in accordance with National
Building Code, Section 1406.0, and Standard Building
Code, Section 2603.5: No ignition at 20 minutes.
13. Impact resistance, when tested in accordance with
ASTM E 695: No cracking or denting after 6-foot (1.8
m) drop of 30-pound (13.6 kg) weight.
14. Impact classification, in accordance with EIMA
101.86: High.
15. Wind load resistance of assembly on 18 gage (1.27 mm)
metal framing spaced at 16 inches (400 mm) on center,
when tested in accordance with ASTM E 330: 200
pounds per square foot (9.6 kPa) positive pressure,
180 pounds per square foot (8.6 kPa) negative
pressure.
16. Surface burning characteristics, when tested in
accordance with ASTM E 84: Adhesive, insulation
board, reinforced base coat, and finish coat each
have flame spread of 25 or less, and smoke developed
of 450 or less.
B. Insulation Board: STYROFOAM(R) Brand extruded
polystyrene board, manufactured by Dow Chemical Company;
extruded polystyrene (XEPS) insulation board complying
with ASTM C 578, Type IV.
C. Mechanical Fastening Components: Mechanical fasteners of
type and size specified in EIFS manufacturer's
instructions for indicated substrate, and having pull-out
strength required for indicated windload requirements,
with EIFS manufacturer's recommended proprietary
fastening accessories.
D. Trim: Provide casing beads, corner beads, starter track,
expansion joint assemblies, and control joint assemblies
indicated on drawings.
1. Comply with ASTM C 1063.
NOTE ** Delete all but one of the following three sub-
paragraphs to specify material. Vinyl or zinc
alloy is recommended for high-humidity or salt-
laden atmospheric conditions; zinc alloy or
galvanized steel is recommended for freeze/thaw
climates.
2. Material: Vinyl, conforming to ASTM D 1784.
3. Material: Zinc alloy, conforming to ASTM B 69.
4. Material: Galvanized steel, conforming to ASTM A
653/A 653M.
E. Base Coat: Sto Toughwall; single-component, fiber-
reinforced, polymer-modified cementitious base coat
material.
F. Reinforcing Mesh: Sto Mesh C; nominal 5.4 ounces per
square yard (183 g/sq m) symmetrical, interlaced, open-
weave glass-fiber fabric, with alkaline-resistant coating
for compatibility with coating materials.
G. Finish Coating:
NOTE ** Delete one of the following two paragraphs.
1. Type: Acrylic-based textured coating, with acrylic
primer tinted to match.
2. Type: Silicone-enhanced textured coating, with
silicone-enhanced primer tinted to match.
NOTE ** Specify finish coat with lightness value of 20,
minimum; darker colors not recommended over
polystyrene insulation board.
NOTE **
NOTE ** Delete all but one of the following three
paragraphs. Coordinate with sample submittals
specified.
3. Color and texture: Selected from full range of
manufacturer's standard selections.
4. Color _________________; ___________ texture.
5. Colors and textures: Specified in SCHEDULES Article
of this section.
2.3 EXTERIOR INSULATION AND FINISH SYSTEM - CLASS PB
A. Exterior Insulation and Finish System: Sto Class PB
System, with the following properties:
1. Listed in GA-600.
2. Abrasion resistance, when tested in accordance with
ASTM D 968: No cracking, checking, or loss of film
integrity at 1057 quarts (1000 l) sand.
3. Accelerated weathering resistance, when tested in
accordance with ASTM G 23: No deleterious effects at
5-power magnification after 2000 hours.
4. Accelerated weathering resistance, when tested in
accordance with ASTM G 53: No deleterious effects at
10-power magnification after 5000 hours.
5. Freeze/thaw resistance, when tested in accordance
with EIMA 101.01: No deleterious effects after 90
cycles.
6. Mildew resistance, when tested in accordance with
ASTM D 3273: No growth supported after 42 days.
7. Salt spray resistance, when tested in accordance with
ASTM B 117: No deleterious effects after 700 hours.
8. Water penetration, when tested in accordance with
EIMA 101.02: No water penetration.
9. Water resistance, when tested in accordance with ASTM
D 2247: No deleterious effects after 28 days.
10. Fire resistance rating effect on wall assembly, when
tested in accordance with ASTM E 119: No change.
11. Full-scale diversified fire test, in accordance with
ASTM E 108 (modified): No significant contribution
to vertical or horizontal flame spread.
12. Full-scale multi-story fire test, in accordance with
UBC Standard 25-4: Pass the following:
a. Resistance to vertical spread of flame within
core of panel from one story to the next.
b. Resistance to flame propagation over exterior
surface.
c. Resistance to vertical spread of flame interior
surface from one story to the next.
d. Resistance to significant lateral spread of flame
from compartment of fire origin to adjacent
spaces.
13. Radiant heat exposure, in accordance with National
Building Code, Section 1406.0, and Standard Building
Code, Section 2603.5: No ignition at 20 minutes.
14. Impact resistance: Conform to the following EIMA
101.86 classifications:
a. Standard: 25 inch-pounds (2.83 J) to 49 inch-
pounds (5.54 J).
b. Medium: 50 inch-pounds (5.65 J) to 89 inch-
pounds (10.1 J).
c. High: 90 inch-pounds (10.2 J) to 150 inch-pounds
(17.0 J).
d. Ultra-high: Over 150 inch-pounds (17.1 J).
15. Wind load resistance of assembly on 18 gage (1.27 mm)
metal framing spaced at 16 inches (400 mm) on center,
when tested in accordance with ASTM E 330: 323
pounds per square foot (15.5 kPa) positive pressure,
239 pounds per square foot (11.4 kPa) negative
pressure.
16. Surface burning characteristics, when tested in
accordance with ASTM E 84: Adhesive, insulation
board, reinforced base coat, and finish coat each
have flame spread of 25 or less, and smoke developed
of 450 or less.
17. Alkali resistance of reinforcing mesh, in accordance
with EIMA 105.01: Greater than 120 pounds per linear
inch (21 dN/cm) tensile strength retained.
18. Tensile adhesion, in accordance with EIMA 101.03: No
failure in adhesive, base coat, or finish coat;
minimum 5 pounds per square inch (34 kPa) before and
after accelerated weathering and freeze/thaw
exposure.
B. Surface Preparation Materials: Manufacturer's
proprietary materials indicated, specified in
manufacturer's instructions, or recommended by
manufacturer to prepare substrates for correct
application of EIFS materials, including the following:
1. Surface conditioner: Acrylic-based surface sealer
and hardener for chalking substrates or highly-
absorptive substrates.
2. Patching and leveling material for applications up to
1/16 inch (1.5 mm) thick: Single-component, polymer-
modified, cement-based material containing fiber
reinforcement.
3. Patching and leveling material for applications up to
1/4 inch (6 mm) thick: Single-component, polymer-
modified, cement-based material containing fiber
reinforcement; used with or without specified fiber
reinforcement material.
C. Adhesive: Type as recommended by system manufacturer for
substrate and exposure.
D. Insulation Board for Above-Grade Applications: Expanded
polystyrene insulation board supplied by EIFS materials
manufacturer, conforming to ASTM C 578, Type I, and EIMA
Guideline Specification for Expanded Polystyrene (EPS)
Insulation Board, nominal 1.0 pound per cubic foot (16
kg/cu m) density.
NOTE ** Delete one or both of the following paragraphs for
below-grade insulation. Verify that local code
allows below-grade installation.
E. Insulation Board for Below-Grade Applications: Expanded
polystyrene insulation board supplied by EIFS materials
manufacturer, conforming to ASTM C 578, Type IV, nominal
2.0 pounds per cubic foot (32 kg/cu m) density.
F. Insulation Board for Below-Grade Applications: Rigid
extruded polystyrene (XEPS) insulation board supplied by
EIFS materials manufacturer, conforming to ASTM C 578,
Type IV, nominal 2.0 pounds per cubic foot (32 kg/cu m)
density.
NOTE ** Delete all but one base coat type below. Sto
Flexyl is used for below-grade installations and
where snow and ice accumulation is likely on sloped
surfaces.
G. Base Coat: Sto RFP; non-cementitious, fiber-reinforced,
acrylic base coating.
H. Base Coat: Sto BTS-B; single-component, polymer-modified
cementitious base coating containing less than 33 percent
Portland cement by weight.
I. Base Coat: Sto Flexyl; fiber-reinforced acrylic base
coating mixed with Portland cement.
J. Reinforcing Mesh: Open-weave glass-fiber fabric with
alkaline-resistant coating.
1. Standard Mesh: Sto Mesh; nominal 4.8 ounces per
square yard (163 g/sq m) symmetrical, interlaced
fabric, with minimum 25 percent by weight alkaline-
resistant coating.
2. High-Impact Mesh: Sto Intermediate Mesh; nominal
11.2 ounces per square yard (380 g/sq m) interwoven
fabric.
NOTE ** Specify ultra high impact mesh at all ground floor
locations and all other locations of anticipated
impact or abuse.
3. Ultra High-Impact Mesh: Sto Armor Mat; nominal 15
ounces per square yard (509 g/sq m) ultra high-
impact, double-strand, interwoven fabric.
NOTE ** If more than one type of mesh is required in
different locations, edit the following paragraph
to indicate locations. Otherwise, delete the
following paragraph and the types above not
required.
4. Use standard mesh over entire area; use high-impact
mesh at ______; use ultra high-impact mesh at
_______.
K. Detailing Mesh: Sto Detail Mesh; nominal 4.5 ounces per
square yard (153 g/sq m) flexible symmetrical,
interlaced, glass-fiber fabric, with alkaline-resistant
coating.
L. Corner Reinforcing Mesh: Sto Corner Mat; nominal 6.25
ounces per square yard (212 g/sq m) pre-creased open-
weave woven glass-fiber fabric, with alkaline-resistant
coating.
M. Finish Coating:
NOTE ** Delete one of the following two paragraphs.
1. Type: Acrylic-based textured coating, with acrylic
primer tinted to match.
2. Type: Silicone-enhanced textured coating, with
silicone-enhanced primer tinted to match.
NOTE ** Specify finish coat with lightness value of 20,
minimum; darker colors not recommended over
polystyrene insulation board.
NOTE **
NOTE ** Delete all but one of the following three
paragraphs. Coordinate with sample submittals
specified.
3. Color and texture: Selected from full range of
manufacturer's standard selections.
4. Color _________________; ___________ texture.
5. Colors and textures: Specified in SCHEDULES Article
of this section.
2.4 EXTERIOR INSULATION AND FINISH SYSTEM - CLASS PB WITH
DRAINAGE CAVITY AND SECONDARY WEATHER-RESISTIVE BARRIER
A. Exterior Insulation and Finish System: Sto Rainscreen
System, with the following properties:
1. Listed in GA-600.
2. Abrasion resistance, when tested in accordance with
ASTM D 968: No cracking, checking, or loss of film
integrity at 1057 quarts (1000 l) sand.
3. Accelerated weathering resistance, when tested in
accordance with ASTM G 23: No deleterious effects at
5-power magnification after 2000 hours.
4. Accelerated weathering resistance, when tested in
accordance with ASTM G 53: No deleterious effects at
5-power magnification after 5000 hours.
5. Freeze/thaw resistance, when tested in accordance
with EIMA 101.01: No deleterious effects after 90
cycles.
6. Mildew resistance, when tested in accordance with
ASTM D 3273: No growth supported after 28 days.
7. Salt spray resistance, when tested in accordance with
ASTM B 117: No deleterious effects after 700 hours.
8. Water penetration, when tested in accordance with
EIMA 101.02: No water penetration beyond plane of
base coat after 15 minutes at 6.24 pounds per square
foot (299 Pa).
9. Water resistance, when tested in accordance with ASTM
D 2247: No deleterious effects after 28 days.
10. Fire resistance rating effect on wall assembly, when
tested in accordance with ASTM E 119: No change.
11. Impact resistance: Conform to the following EIMA
101.86 classifications:
a. Standard: 25 inch-pounds (2.83 J) to 49 inch-
pounds (5.54 J).
b. Medium: 50 inch-pounds (5.65 J) to 89 inch-
pounds (10.1 J).
c. High: 90 inch-pounds (10.2 J) to 150 inch-pounds
(17.0 J).
d. Ultra-high: Over 150 inch-pounds (17.1 J).
NOTE ** Retain one of the following two sub-paragraphs;
first is for 1 pound per cubic foot (16 kg/ cu m)
expanded polystyrene insulation, second is for 2
pounds per cubic foot (32 kg/ cu m) expanded
polystyrene insulation.
12. Wind load resistance of assembly on 18 gage (1.27 mm)
metal framing spaced at 16 inches (400 mm) on center,
when tested in accordance with ASTM E 330: 193
pounds per square foot (9.24 kPa) positive pressure,
53 pounds per square foot (2.54 kPa) negative
pressure.
13. Wind load resistance of assembly on 18 gage (1.27 mm)
metal framing spaced at 16 inches (400 mm) on center,
when tested in accordance with ASTM E 330: 193
pounds per square foot (9.24 kPa) positive pressure,
82 pounds per square foot (3.93 kPa) negative
pressure.
14. Surface burning characteristics, when tested in
accordance with ASTM E 84: Adhesive, insulation
board, reinforced base coat, and finish coat each
have flame spread of 25 or less, and smoke developed
of 450 or less.
15. Alkali resistance of reinforcing mesh, in accordance
with EIMA 105.01: Greater than 120 pounds per linear
inch (21 dN/cm) tensile strength retained.
16. Drainage efficiency, when tested in accordance with C
& I 2000: 95 percent.
B. Secondary Weather-Resistive Barrier: Either asphalt-
impregnated glass-fiber felt conforming to ASTM D 226,
Type I, or Kraft waterproof building paper.
C. Flexible Flashing: Sto Flexible Flashing; rubberized
asphalt cold-applied, self-adhering membrane flashing
supplied by EIFS materials manufacturer.
D. Sheet Metal Flashing: Galvanized or corrosion-resistant
metal, minimum 26 gage (0.48 mm).
E. Starter Track: Rigid polyvinyl chloride extrusion, with
weepholes and drip edge; supplied by EIFS materials
manufacturer.
F. Insulation Board for Above-Grade Applications: Sto
Drainage Expanded Polystyrene (EPS) Board; expanded
polystyrene insulation board, with drainage grooves one
face, supplied by EIFS materials manufacturer.
1. Comply with ASTM C 578, Type I, and EIMA Guideline
Specification for Expanded Polystyrene (EPS)
Insulation Board.
2. Density: 1.0 pound per cubic foot (16 kg/cu m)
nominal.
3. Thickness: 1-1/2 inches (38 mm), minimum.
NOTE ** Delete one or both of the following insulation
types. Verify that local code permits below-grade
insulation.
G. Insulation Board for Below-Grade Applications: Sto
Drainage Expanded Polystyrene (EPS) Board; expanded
polystyrene insulation board, with drainage grooves one
face, supplied by EIFS materials manufacturer.
1. Comply with ASTM C 578, Type IV.
2. Density: 2.0 pounds per cubic foot (32 kg/cu m)
nominal.
3. Thickness: 1-1/2 inches (38 mm), minimum.
H. Insulation Board for Below-Grade Applications: Rigid
extruded polystyrene (XEPS) insulation board, with
drainage grooves one face, supplied by EIFS materials
manufacturer.
1. Comply with ASTM C 578, Type IV.
2. Density: 2.0 pounds per cubic foot (32 kg/cu m),
nominal.
3. Thickness: 1-1/2 inches (38 mm), minimum.
NOTE ** Delete all but one base coat type below. Sto
Flexyl is used for below-grade installations and
where snow and ice accumulation is likely on sloped
surfaces.
I. Base Coat: Sto RFP; non-cementitious, fiber-reinforced,
acrylic base coating.
J. Base Coat: Sto BTS-B; single-component, polymer-modified
cementitious base coating containing less than 33 percent
Portland cement by weight.
K. Base Coat: Sto BTS-PLUS; single-component, polymer-
modified high-build cementitious base coating containing
less than 33 percent Portland cement by weight.
L. Base Coat: Sto Flexyl; fiber-reinforced acrylic base
coating mixed with Portland cement.
M. Reinforcing Mesh: Open-weave glass-fiber fabric with
alkaline-resistant coating.
1. Standard Mesh: Sto Mesh; nominal 4.8 ounces per
square yard (163 g/sq m) symmetrical, interlaced
fabric, with minimum 25 percent by weight alkaline-
resistant coating.
2. High-Impact Mesh: Sto Intermediate Mesh; nominal
11.2 ounces per square yard (380 g/sq m) interwoven
fabric.
NOTE ** Specify ultra high impact mesh at all ground floor
locations and all other locations of anticipated
impact or abuse.
3. Ultra High-Impact Mesh: Sto Armor Mat; nominal 15
ounces per square yard (509 g/sq m) ultra high-
impact, double-strand, interwoven fabric.
NOTE ** If more than one type of mesh is required in
different locations, edit the following paragraph
to indicate locations. Otherwise, delete the
following paragraph and the types above not
required.
4. Use standard mesh over entire area; use high-impact
mesh at ______; use ultra high-impact mesh at
_______.
N. Detailing Mesh: Sto Detail Mesh; nominal 4.5 ounces per
square yard (153 g/sq m) flexible symmetrical,
interlaced, glass-fiber fabric, with alkaline-resistant
coating.
O. Corner Reinforcing Mesh: Sto Corner Mat; nominal 6.25
ounces per square yard (212 g/sq m) pre-creased open-
weave woven glass-fiber fabric, with alkaline-resistant
coating.
P. Finish Coating:
NOTE ** Delete one of the following two paragraphs.
1. Type: Acrylic-based textured coating, with acrylic
primer tinted to match.
2. Type: Silicone-enhanced textured coating, with
silicone-enhanced primer tinted to match.
NOTE ** Specify finish coat with lightness value of 20,
minimum; darker colors not recommended over
polystyrene insulation board.
NOTE **
NOTE ** Delete all but one of the following three
paragraphs. Coordinate with sample submittals
specified.
3. Color and texture: Selected from full range of
manufacturer's standard selections.
4. Color _________________; ___________ texture.
5. Colors and textures: Specified in SCHEDULES Article
of this section.
2.5 ACCESSORY MATERIALS
A. Joint Sealant: Comply with EIMA Standard 300.01; minimum
50 percent elongation.
NOTE ** Delete the following two paragraphs if only Class
PM system is specified.
B. Portland Cement: ASTM C 150, Type I.
C. Water: Clean, potable, not containing materials which
would impair appearance or performance of coating
materials.
2.6 MIXES
A. Mix materials specified to be site-mixed in accordance
with manufacturer's mixing instructions; do not dilute
finish coatings except as instructed.
B. Mix only enough materials that can be applied during
working time recommended by manufacturer; do not retemper
mixes.
C. Do not add anti-freeze admixtures or other admixtures
which may adversely affect performance or appearance of
coating materials.
PART 3 EXECUTION
3.1 EXAMINATION
NOTE ** The EIFS manufacturer is not responsible for design
of the substrate, including its structural support.
The following are some design considerations for
substrates:
NOTE **
NOTE ** Design for maximum allowable deflection, normal to
wall plane, of L/240 for PB System, L/360 for PM
System; include wind load requirements.
NOTE **
NOTE ** Prevent accumulation of water behind coating, by
condensation within substrate or by water leakage.
NOTE ** Delete requirements in the following paragraph not
applicable to project.
A. Inspect substrates to receive EIF systems for the
following:
1. Contamination: Presence of foreign matter which
might affect coating performance or appearance.
2. Delamination, damage, defects, or deterioration.
3. Cracking: Measure widths of cracks; record
locations.
4. Surface absorption and chalking.
5. Moisture content: Use moisture meter of type
recommended by manufacturer to determine if moisture
content is within limits recommended by manufacturer.
6. Surface plane within tolerances required in
manufacturer's instructions.
NOTE ** Delete substrates that are not required.
7. Installation of exterior gypsum sheathing conforming
to GA 253.
8. Installation of Exterior Grade and Exposure 1 wood-
based sheathing conforming to APA J20G.
9. Installation of glass-fiber mat faced gypsum
sheathing conforming to sheathing manufacturer's
instructions.
10. Installation of cementitious sheathing conforming to
sheathing manufacturer's instructions.
NOTE ** Provide minimum 3/4-inch (19 mm) wide expansion
joints in EIFS where they exist in substrate or
supporting construction, where EIFS abuts
dissimilar construction or materials, at changes in
building height, and at floorlines of multi-story
wood construction; provide minimum 1/2-inch (13 mm)
wide sealant joints at penetrations through EIFS
system.
NOTE **
NOTE ** Do not allow coatings to be applied over joints.
B. Verify that joints in substrates are in accordance with
EIFS manufacturer's recommendations.
3.2 PREPARATION
A. Correct unacceptable conditions before proceeding.
B. Protect surfaces adjacent to locations of EIF system
installation; do not allow EIF system materials on
surfaces not indicated to receive them.
C. Prepare substrates to receive EIF system materials in
accordance with manufacturer's instructions and as
follows:
NOTE ** Delete any of the following sub-paragraphs not
applicable to project.
1. Remove loose, damaged, or deteriorated materials.
2. Remove surface contaminants on concrete surfaces in
accordance with ASTM D 4258.
3. Remove surface contaminants on concrete masonry
surfaces in accordance with ASTM D 4261.
4. Repair surface defects using patching and leveling
material.
5. Repair surface cracks using patching and leveling
material, or patching and leveling material with
fabric reinforcement, according to manufacturer's
recommendations for crack size.
6. Replace damaged sheathing.
7. Apply surface conditioner to chalked or absorbent
surfaces.
8. Apply skim coat to level substrates to required plane
tolerances.
3.3 INSTALLATION
A. Install EIF system components in accordance with
manufacturer's instructions and recommendations.
B. Apply prime and finish coats in accordance with
manufacturer's instructions; do not exceed manufacturer's
recommended spread rate for coating materials.
C. Do not apply coatings over sealant joints, cold joints,
expansion joints, or control joints.
D. Finish final coats to match accepted mock-ups.
E. Seal all joints between EIF system and adjacent materials
using specified sealant.
3.4 PROTECTION
A. Protect installed EIF system from damage by subsequent
construction activities.
B. Repair installed EIF system, if damaged by subsequent
construction activities, in accordance with
manufacturer's recommendations, to Architect's
acceptance; if damaged areas of EIF system cannot be
repaired to Architect's acceptance, replace system
components to nearest adjacent joints.
NOTE ** The following sample schedule may assist in
establishing a schedule to identify locations of
products in the project; coordinate with drawings.
Delete entire Article if not required.
3.5 SCHEDULES
A. Location: Exterior concrete walls.
1. System type: Class PM.
2. Color: _____________________.
3. Texture: ___________________.
B. Location: Exterior metal stud framing with exterior
glass-fiber mat gypsum sheathing.
1. System type: Class PB with drainage cavity and
secondary weather-resistive barrier.
2. Color: _____________________.
3. Texture: ___________________.
END OF SECTION