Most Widely Accepted and Trusted
0
ICC-ES Report
ICC-ES | (800) 423-6587 | (562) 699-0543 | www.icc-es.org
000
ESR-1030
Reissued 12/2015
This report is subject to renewal 12/2016.
DIVISION: 07 00 00—THERMAL AND MOISTURE PROTECTION
SECTION: 07 24 00—EXTERIOR INSULATION AND FINISH SYSTEMS
REPORT HOLDER:
STO CORPORATION
3800 CAMP CREEK PARKWAY
BUILDING 1400, SUITE 120
ATLANTA, GEORGIA 30331
EVALUATION SUBJECT:
STO RAINSCREEN AND STO RAINSCREEN II CLASS PB EXTERIOR INSULATION AND
FINISH SYSTEMS WITH DRAINAGE
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ICC-ES Evaluation Reports are not to be construed as representing aesthetics or any other attributes not
specifically addressed, nor are they to be construed as an endorsement of the subject of the report or a
recommendation for its use. There is no warranty by ICC Evaluation Service, LLC, express or implied, as
to any finding or other matter in this report, or as to any product covered by the report.
Copyright © 2015 ICC Evaluation Service, LLC All rights reserved.
A Subsidiary of
ICC-ES Evaluation Report
ESR-1030
Reissued December 2015
This report is subject to renewal December 2016.
www.icc-es.org | (800) 423-6587 | (562) 699-0543
DIVISION: 07 00 00—THERMAL AND MOISTURE
PROTECTION
Section: 07 24 00—Exterior Insulation and Finish
Systems
REPORT HOLDER:
A Subsidiary of the International Code Council ®
wood structural panels, water-resistant core gypsum
sheathing, or Dens-Glass® Gold sheathing; and to steelframed exterior walls covered with unpainted wood
structural panels, water-resistant core gypsum sheathing,
®
or Dens-Glass Gold sheathing.
System components consist of a water-resistive barrier,
grooved expanded polystyrene (EPS) drainage insulation
boards, mechanical fasteners, a base coat, woven
fiberglass fabric, a synthetic plaster finish coat,
accessories and sealants. See Figure 1 for an illustration
of product components.
STO CORPORATION
3800 CAMP CREEK PARKWAY
BUILDING 1400, SUITE 120
ATLANTA, GEORGIA 30331
(404) 346-3666
www.stocorp.com
tviness@stocorp.com
EVALUATION SUBJECT:
STO RAINSCREEN AND STO RAINSCREEN II CLASS PB
EXTERIOR INSULATION AND FINISH SYSTEMS WITH
DRAINAGE
1.0 EVALUATION SCOPE
The Sto RainScreen Class PB Exterior Insulation and
Finish System with Drainage may be used on (1) buildings
of any type of construction under the IBC, including but not
limited to, buildings classified as having a Group R-1, R-2,
or R-4 Occupancy Group; (2) buildings constructed under
the IRC; and (3) in noncombustible construction as
described in Section 4.4.
3.1.2 Materials:
3.1.2.1
Compliance with the following codes:
®
 2006 International Building Code (IBC)
®
 2006 International Residential Code (IRC)
Properties evaluated:
 Fire-resistance-rated construction
 Noncombustible construction
 Structural transverse wind load resistance
 Surface-burning characteristics
 Weather resistance
 Ignition resistance
2.0 USES
The Sto RainScreen and RainScreen II Class PB Exterior
Insulation and Finish Systems with Drainage are used as
insulation and exterior wall finishes on the types of
construction noted in this report.
3.0 DESCRIPTION
3.1 Sto RainScreen Class PB Exterior Insulation and
Finish Systems with Drainage:
3.1.1 General: The Sto RainScreen Class PB Exterior
Insulation and Finish System with Drainage is an adhered
composite drainage EIFS clad wall assembly applied to
vertical wood-framed exterior walls covered with unpainted
Substrates:
3.1.2.1.1 Wood Structural Panel Sheathing: Exterior
or Exposure 1 grade plywood complying with U.S. DOC
PS-1 or PS-2 (UBC Standard 23-2 or 23-3); or Exposure 1
grade oriented strand board (OSB) complying with U.S.
DOC PS-2 (UBC Standard 23-3); and with a minimum
7
thickness of /16 inch (11.1 mm).
3.1.2.1.2 Gypsum Sheathing: Minimum 5/8-inch-thick
(15.9 mm), water-resistant core gypsum sheathing
1
5
complying with ASTM C 79, or /2- or /8-inch-thick (12.7 or
®
15.9 mm) Dens-Glass Gold, a proprietary water-resistant
core gypsum sheathing manufactured by GP Gypsum
Corporation and recognized in ICC-ES evaluation report
ESR-3087.
3.1.2.1.3 Water-resistive Barrier: A water-resistive
barrier in accordance with IBC Section 1404.2 or IRC
Section R703.2 must be placed over all substrates and
behind the insulation board. Application of the barrier must
comply with the applicable code. When applied over any
wood-based sheathing, the barrier must be a minimum of
two layers of Grade D building paper, or one layer of
60-minute Grade D building paper, as required by IBC
Section 2510.6 or IRC Section R703.6.3.
3.1.2.1.4 Drainage Insulation Boards: The drainage
insulation boards must be EPS rigid insulation boards with
grooves on the back side for drainage. The grooves must
run the full width of the board, and be 1 inch wide
(25.4 mm) by 1/4 inch deep (6.4 mm), spaced 13/4 inches
ICC-ES Evaluation Reports are not to be construed as representing aesthetics or any other attributes not specifically addressed, nor are they to be construed
as an endorsement of the subject of the report or a recommendation for its use. There is no warranty by ICC Evaluation Service, LLC, express or implied, as
to any finding or other matter in this report, or as to any product covered by the report.
1000
Copyright © 2015 ICC Evaluation Service, LLC. All rights reserved.
Page 1 of 12
ESR-1030 | Most Widely Accepted and Trusted
(44 mm) on center. The boards must have a nominal
density of 1 pound per cubic foot (16 kg/m3), and a
maximum flame-spread index not greater than 25 and a
smoke-developed index not greater than 450 when tested
in accordance with ASTM E 84 (UBC Standard 8-1). The
boards must comply with ASTM C 578 as Type I and have
a maximum width of 24 inches (610 mm), a maximum
length of 48 inches (1219 mm), and thicknesses ranging
1
from 1 /2 to 4 inches (38 to 102 mm).
3.1.2.1.5 Mechanical fasteners: The following Windlock
fastening systems must be used for the insulation boards:
1. Wind-Devil™, consisting of a 13/4-inch-diameter
(44 mm) W-WDP plastic plate and a minimum UWLM2 fastener [No. 7 by 2-inch-long (51 mm) corrosionresistant buglehead screw], must be used to attach
insulation boards through wood-based or gypsum
sheathing into wood studs. See Figure 2 for fastener
selection based on insulation board thickness.
2. Wind-Devil 2™, consisting of a 2-inch-diameter
(51 mm) WD-2W plastic plate and a minimum UST-3
5
fastener [2 /8-inch-long (67 mm) corrosion-resistant
buglehead screw], must be used to attach insulation
boards through wood-based or gypsum sheathing into
steel studs. See Figure 2 for fastener selection based
on insulation board thickness.
3.1.2.1.6 Base Coat: Sto BTS-Plus is a one-component,
polymer-modified, cement-based material and is packaged
in 60-pound (27.3 kg) bags. The material is field-mixed
with 7 to 9 quarts (6.6 to 8.5 L) of potable water per bag.
Sto BTS-Plus has a one-year shelf life when stored at
temperatures between 38°F and 90°F (3.3°C and 32.2°C)
and off the ground, in a dry area, protected from moisture.
3.1.2.1.7 Reinforcing Fabric: Sto Mesh is a reinforcing
fabric having interlaced glass fiber made from twisted
multi-end strands, which has been treated for alkali
resistance and compatibility with the other Sto
components. The fabric is available in 36-inch-wide
(965 mm), 475-square-foot (44 m2) rolls, and weighs
approximately 4.5 ounces per square yard (153 g/m2) with
a 6-by-5 thread count per inch-width (per 25.4 millimeterwidth). Minimum tensile strength in the weft and warp
directions is 165 and 150 pounds per lineal inch (28.9 and
26.2 N/mm), respectively. When protected from moisture,
Sto Mesh has a one-year shelf life.
®
3.1.2.1.8 Finish Coat: StoLit finish coat is a premixed,
acrylic-based, textured wall finish coating of hardened
air-cured material made with marble particles of a graded
size. StoSilco® Lit is a premixed, silicone-enhanced
textured wall finish coating with graded marble aggregates.
Both coatings are packaged in 70-pound (31.5 kg) pails
and have a one-year shelf life when stored at temperatures
between 38°F and 90°F (3.3°C and 32.2°C).
3.1.2.1.9 Accessories: Starter tracks, corner beads,
drip edges, trim accessories and weep screeds used with
the system are polyvinyl chloride (PVC) materials
conforming to ASTM D 1784, and approved by Sto
Corporation. The weep screed is “Starter Track,” Part No.
STDE, manufactured by Plastic Components, Inc.
3.1.2.1.10 Sealants: The sealants must be compatible
with the EIFS components and recommended by Sto
Corporation. Evidence must be submitted to the code
official showing that the manufacturer-recommended
sealant complies with ASTM C 920, Type M, Grade NS,
Class 25. The sealants must have a movement capability
of ±25 per cent or greater, and must be tested in
accordance with ASTM C 1382. Use of sealants must be
qualified for each material to which the sealants will be
Page 2 of 12
applied. The details for sealant installation, including the
width and thickness of the sealant, must be specified by a
registered design professional, designer, or builder, or by
Sto Corporation, in that order, to the satisfaction of the
code official.
3.2 Sto RainScreen II Class PB Exterior Insulation and
Finish Systems with Drainage:
3.2.1 General: The Sto RainScreen II Class PB Exterior
Insulation and Finish System with Drainage is an adhered
composite drainage EIFS clad wall assembly applied to
vertical wood-framed exterior walls covered with unpainted
wood structural panels, water-resistant core gypsum
sheathing, or Dens-Glass® Gold sheathing; and to steelframed exterior walls covered with unpainted wood
structural panels, water-resistant core gypsum sheathing,
®
or Dens-Glass Gold sheathing.
System components consist of a water-resistive barrier, a
drainage mat, mechanical fasteners, an adhesive, EPS
insulation boards, a base coat, woven fiberglass fabric, a
synthetic plaster finish coat, accessories and sealants. See
Figure 3 for an illustration of product components.
The Sto RainScreen II Class PB Exterior Insulation and
Finish System with Drainage may be used on (1) buildings
of any type of construction under the IBC, including, but
not limited to, buildings classified as having a Group R-1,
R-2, or R-4 Occupancy Group; (2) buildings constructed
under the IRC; and (3) in noncombustible construction as
described in Section 4.4.
3.2.2 Materials:
3.2.2.1
Substrates:
3.2.2.1.1 Wood Structural
described in Section 3.1.2.1.1.
3.2.2.1.2
3.1.2.1.2.
Panel
Sheathing:
As
Gypsum Sheathing: As described in Section
3.2.2.1.3 Water-resistive Barrier: As described in
Section 3.1.2.1.3.
3.2.2.1.4 Drainage Mat: The drainage mat used for Sto
Insulation Boards must be either Ultra-Lath or galvanized,
expanded metal lath. Ultra-Lath, manufactured by Plastic
Components, Inc., is a UV-stabilized, heavy-duty extended
polyolefin (polyethylene or polypropylene), self-furred lath.
Ultra-Lath has 1/4-inch-by-1/4-inch (6.4 mm by 6.4mm)
square holes oriented 45 degrees to the length of the lath,
and is available either as a mat measuring 27 inches wide
by 96 inches long (686 mm by 2438 mm) or as a roll
measuring 27 inches wide by 100 feet long (686 mm by 30
480 mm). The galvanized, expanded metal lath is a selffurred diamond mesh, weighing a minimum of 2.5 pounds
per square yard (0.95 kg/m2), and must comply with the
applicable code.
3.2.2.1.5 Mechanical
Fasteners:
The
following
Windlock fastening systems must be used for attachment
of the drainage mat:
1.
The Wind-lock ULP-3W2 system is used in EIFS
systems where the drainage mat is fastened to woodbased sheathing, and, where applicable, through
gypsum sheathing into wood studs. The ULP-3W2
3
system consists of a ULP-302 plate; a 1 /4-inchdiameter (44 mm), rigid polypropylene washer; and a
corrosion-resistant UW-1 or UW-2 screw. The Wind5
lock UW-1 is a No. 6 by 1 /8-inch-long (41 mm), Type
S buglehead screw. The Wind-lock UW-2 is a No. 7
by 2-inch-long (51 mm), Type S buglehead screw.
See Figure 4 for fastener selection based on
insulation board thickness.
ESR-1030 | Most Widely Accepted and Trusted
2.
Page 3 of 12
The Wind-lok ULP-3S2 system is used in EIFS where
the drainage mat is fastened through the gypsum
sheathing to steel studs. The fastening system
consists of a ULP-302 plate; a 13/4-inch-diameter
(44 mm), rigid polypropylene washer; and a corrosionresistant US-2 screw. The US-2 is a No. 6, 2-inchlong (51 mm), Type S-12 buglehead screw. See
Figure 4 for fastener selection based on insulation
board thickness.
3.2.2.1.6 Adhesive: Sto BTS-Plus adhesive is the same
material as the base coat described in Section 3.1.2.1.6
and is used to adhere Sto Insulation Boards to the
drainage mat described in Section 3.2.2.1.4.
3.2.2.1.7 Insulation Boards: The insulation boards
must be expanded polystyrene (EPS) rigid insulation
boards with a nominal density of 1 pound per cubic foot
(16.0 kg/m3), and a maximum flame-spread index not
greater than 25 and a smoke-developed index not greater
than 450 when tested in accordance with ASTM E 84
(UBC Standard 8-1). The boards comply with ASTM C 578
as Type I and have a maximum width of 24 inches (610
mm) and a maximum length of 48 inches (1219 mm).
Thicknesses range from 11/2 to 4 inches (38 to 102 mm).
3.2.2.1.8
Base Coat: As described in Section 3.1.2.1.6.
3.2.2.1.9
3.1.2.1.7.
Reinforcing Fabric: As described in Section
3.2.2.1.10 Finish Coat: As described in Section 3.1.2.1.8.
3.2.2.1.11 Accessories:
3.1.2.1.9.
As
described
in
Section
3.2.2.1.12 Sealants: As described in Section 3.1.2.1.10.
4.0 INSTALLATION
4.1 General:
Installation of the Sto RainScreen and Sto RainScreen II
Class PB Exterior Insulation and Finish Systems with
Drainage must comply with this report, the applicable code
and the manufacturer’s published installation instructions.
The manufacturer’s published installation instructions must
be available at the jobsite at all times during installation.
The system must be applied over unpainted wood-based
structural panels, water-resistant core gypsum sheathing,
®
or Dens-Glass Gold sheathing attached to minimum 2-by4 wood studs having a minimum specific gravity of 0.50,
such as Douglas fir–larch, spaced at a maximum of
16 inches (406 mm) on center, or to minimum 43-mil
[0.0478-inch (1.2 mm) base-metal thickness] galvanized
steel studs spaced at a maximum of 16 inches (406 mm)
on center. The substrates must be limited to those having
1
planar irregularities not exceeding /4 inch (6.4 mm), and
must be structurally sound, clean, dry and smooth, with all
dust and deleterious materials removed. All materials must
be installed by applicators approved by Sto Corporation.
During application of any water-based materials, the wall
surface and the surrounding air temperature must be 40°F
(4.4°C) or higher. The EIFS materials must be protected
from wind, rain, dust and freezing until fully cured. If water
is added to mixtures for workability, the minimum amount
of water must be used. Typical installation details are
shown in Figure 5. The sheathing must be installed with all
edges blocked and attached to the framing members in
accordance with Table 1.
Expansion joints are required at locations where the
substrate changes, at floor lines in wood-framed
construction in which lumber shrinkage will occur, where
the EIFS abuts another material, and where structural
movement is anticipated. Joints must be installed as
specified by the registered design professional, builder or
exterior coating manufacturer, in that order.
The weep screed must be attached, at the bottom of the
wall system, to wood-based sheathing with galvanized or
zinc-coated 6d common nails at 12 inches (305 mm) on
center, or through gypsum sheathing into steel studs with
minimum No. 6 by 11/4-inch-long (32 mm), Type S-12,
corrosion-resistant buglehead screws along each stud. The
water-resistive barrier described in Section 3.1.2.1.3 must
be installed over the sheathing and weep screed prior to
installation of the insulation board.
4.2 Sto RainScreen Class PB Exterior Insulation and
Finish Systems with Drainage:
4.2.1 Drainage Insulation Boards: The drainage
insulation boards must be oriented with the grooves
running vertically and fastened in accordance with the
fastening pattern shown in Figure 2, using the designated
Windlock fastening system described in Section 3.1.2.1.5.
All joints are tightly butted, and vertical joints must be
staggered.
4.2.2 Base Coat: Before any coatings are applied, the
entire surface of the installed insulation board must be
leveled with a rasping board or power rasper. A base coat
of Sto BTS-Plus is applied to the entire board surface with
a stainless steel trowel, to a uniform thickness of
approximately 1/16 inch (1.6 mm).
4.2.3 Reinforcing Fabric: After the base coat is
installed, Sto Mesh is immediately placed against the wet
base coat and troweled from center to edge. The Sto Mesh
must be continuous around corners and lapped at least
1
2 /2 inches (64 mm) along edges. Wrinkles must be
avoided and the mesh must be fully embedded and
covered. The base coat must be allowed to dry for 12
hours prior to application of the finish coat.
4.2.4 Finish Coat: A sealant, as described in Section
3.1.2.1.10, must be applied, prior to application of the finish
coat at system terminations, exposed joints, floor lines of
wood-framed construction, changes in building shape or
roof line, substrate changes, expansion joints, and wall
penetrations. After the base coat has dried, the factoryprepared StoLit® or StoSilco® Lit plaster finish material is
thoroughly mixed, using a high-speed mixer, until a uniform
workable consistency is achieved. Small amounts of water
®
are permitted to be added for workability. The StoLit or
StoSilco® Lit plaster finish is then applied directly to the
base coat, using a clean, stainless steel trowel. The final
texture is achieved with a plastic or stainless steel trowel.
The finish coat thickness must not be greater than the
diameter of the largest aggregate, approximately 1/16 inch
thick (1.6 mm).
4.3 Sto RainScreen II Class PB Exterior Insulation and
Finish Systems with Drainage:
4.3.1 Drainage Mat: The drainage mat described in
Section 3.2.2.1.4 is installed with mechanical fasteners in
accordance with Table 1 and Figure 4 over the waterresistant barrier.
4.3.2 Insulation Boards: Before the insulation boards
are placed over the drainage mat, Sto BTS-Plus adhesive
described in Section 3.2.2.1.5 is applied to the back of the
boards, using a stainless steel or plastic trowel having
1
/2-inch-by-1/2-inch (12.7 mm by 12.7 mm) notches, spaced
1
at 2 /2 inches (64 mm) on center. The adhesive ribbons are
applied parallel to the short dimension of the insulation
boards. The insulation boards are adhered to the drainage
mat and substrate, with adhesive ribbons vertically to
provide a drainage cavity, and with uniform pressure over
ESR-1030 | Most Widely Accepted and Trusted
the entire surface to ensure uniform contact. All joints are
tightly butted, and vertical joints must be staggered.
4.3.3 Base Coat: As described in Section 4.2.2.
4.3.4 Reinforcing Fabric: As described in Section 4.2.3.
4.3.5 Finish Coat: As described in Section 4.2.4.
4.4 Types I, II,
Construction:
III
and
IV
(Noncombustible)
The Sto RainScreen and RainScreen II Class PB Exterior
Insulation and Finish Systems with Drainage may be
applied where noncombustible construction [Type I, II, III,
or IV (IBC)] is required, provided the construction is as
described in this section.
4.4.1 Framing: The framing is minimum 43-mil [0.0478
5
inch (1.2 mm)] by 3 /8-inch (92 mm) steel studs spaced a
maximum of 16 inches (406 mm) on center.
5
4.4.2
Interior Finish: One layer of /8-inch-thick (15.9
mm), Type X gypsum board complying with ASTM C 36,
applied horizontally to the steel studs using corrosionresistant, No. 6 by 11/4-inch-long (32 mm), Type S,
buglehead drywall screws spaced 8 inches (203 mm) on
center along the perimeter studs and 12 inches (305 mm)
on center within the field. All horizontal gypsum board
joints are to be backed. All joints must be taped and,
including screw heads, must be treated with joint
compound in accordance with the applicable code. At floor
levels, stud cavities must be blocked with Thermafiber
3
insulation (ICC-ES report ER-2331) having a 4 lb/ft
3
(64 kg/m ) density, and being 4 inches (102 mm) thick and
2 feet (610 mm) wide.
5
4.4.3 Exterior Finish: One layer of /8-inch-thick (15.9
mm), Type X, water- resistant core gypsum sheathing
complying with ASTM C 79, applied horizontally to the
steel studs using corrosion-resistant, No. 6 by 11/4-inchlong (32 mm), Type S, buglehead drywall screws spaced
8 inches (203 mm) on center along the perimeter studs
and 12 inches (305 mm) on center within the field. A waterresistive barrier, as described in Section 3.1.2.1.3, must be
installed over the sheathing, prior to installation of the
Sto RainScreen or RainScreen II system. The maximum
foam plastic insulation thickness is 4 inches (102 mm).
4.5 Repair:
Damaged portions of the exterior face must be cut out, and
the affected area patched using the same techniques and
types of materials used in the original application as
described in this report.
4.6 Openings:
Wall openings must be framed with minimum 43-mil,
0.0478-inch-base-metal-thickness (1.2 mm), corrosionresistant steel.
4.7 Wind Design:
Allowable transverse wind pressures for the RainScreen
and RainScreen II systems installed in accordance with
this report are as noted in Table 1. The framing members
must be designed to resist all positive and negative design
1
loads with a maximum allowable deflection of /240 of the
span.
5.0 CONDITIONS OF USE
The Sto RainScreen and Sto RainScreen II Class PB
Exterior Insulation and Finish Systems with Drainage
described in this report comply with, or are suitable
alternatives to what is specified in, those codes listed in
Section 1.0 of this report, subject to the following
conditions:
Page 4 of 12
5.1 The system must be manufactured, identified and
installed in accordance with this report, the
manufacturer’s published installation instructions and
the applicable code. In the event of a conflict between
the manufacturer’s published installation instructions
and this report, this report governs.
5.2 The insulation board must be separated from the
building interior by a thermal barrier complying with
the applicable code.
5.3 Installation must be done by applicators approved by
Sto Corporation. An installation card, as shown in
Figure 6, must be completed at the end of each
project and filed with the code official. In addition, a
sealant application card, as shown in Figure 7, must
be filed with the code official after sealant application.
5.4 The systems are permitted to be installed on exterior
walls of any type of construction, provided that the
installation is in accordance with Section 4.4.
5.5 The design wind load pressures must not exceed the
capacities indicated in Table 1 for the applicable
system.
5.6 The finish system must not be used as exterior stud
wall bracing. Wall bracing must be provided in
accordance with IBC Section 2308.9.3 and IRC
Section R602.10.
5.7 In jurisdictions adopting the IBC or IRC, where the
possibility of termite infestation is “very heavy,” the
system must terminate not less than 6 inches
(152 mm) above the finish ground level, in
accordance with IBC Section 2603.8 or IRC Section
R320.5.
6.0 EVIDENCE SUBMITTED
Data in accordance with the ICC-ES Acceptance Criteria
for EIFS Clad Drainage Wall Assemblies (AC235), dated
October 2004 (editorially revised December 2007 and April
2008).
7.0 IDENTIFICATION
Containers of base coat, reinforcing mesh, and finish coat
of the Sto RainScreen and Sto RainScreen II Class PB
Exterior Insulation and Finish Systems with Drainage
described in this report must bear a label noting the
manufacturer’s name (Sto Corp.) and address; product
name; evaluation report number (ESR-1030); production
date; batch number; quantity of material; storage, mixing
and curing instructions; and expiration date.
The Windlock fasteners are packaged in cartons bearing
the Windlock name; the designation Wind-Devil™, WindDevil 2™, ULP-3W2 or ULP-3S2; the quantity; and the
installation instructions.
The weep screeds are packaged in cartons bearing the
Plastic Components name and the part number (STDE).
Foam plastic insulation boards must be identified in
accordance with their respective evaluation reports. When
used on walls required to be of noncombustible
construction, the EPS foam plastic boards must be
identified along the edge of each board, and on both board
faces of at least one board from each packaged bundle,
with the following information:
•
The Sto Corp. name and the evaluation report number
(ESR-1030).
•
The name and evaluation report number of the
insulation board molder.
•
The name of the inspection agency, as indicated in the
evaluation report for the foam plastic.
ESR-1030 | Most Widely Accepted and Trusted
Page 5 of 12
TABLE 1—STO RAINSCREEN AND STO RAINSCREEN II ASSEMBLIES AND DESIGN WIND PRESSURES
ASSEMBLY/
DESIGN WIND
PRESSURE
FRAMING
SHEATHING
SHEATHING
ATTACHMENT
DRAINAGE MAT
DRAINAGE MAT
ATTACHMENT
1
(RainScreen II)/
Positive: 35 psf
Negative: 30 psf
Min. 2-by-4
wood studs
at max. 16
inches o.c.
Min. /16-inch-thick
OSB or plywood
Min. 6d common
nails at 6 inches o.c.
along perimeter and
12 inches o.c. within
the field
Ultra Lath or min.
2.5-pound-persquare-yard selffurred diamond
mesh metal lath
Wind-lock ULP-3W2UW-2 screws spaced
a max. of 8 inches o.c.
in both directions into
sheathing
—
Min. 18 gage
2
7
(RainScreen II)/ steel studs at Min. /16-inch-thick
max. 16
Positive: 35 psf
OSB or plywood
Negative: 30 psf inches o.c.
Wind-lock US-2
screws at 6 inches
o.c. along perimeter,
12 inches o.c. within
the field
Ultra Lath or min.
2.5-pound-persquare-yard selffurred diamond
mesh metal lath
Wind-lock ULP-3W2UW-2 screws spaced
a max. of 8 inches o.c.
in both directions into
sheathing
—
Min. 18 gage
3
5
(RainScreen II)/ steel studs at Min. /8- inch-thick
max. 16
gypsum sheathing
Positive: 65 psf
Negative: 55 psf inches o.c.
Min. No. 6 by 1 /4Min. 2.5-pound-per- Wind-lock ULP-3S2inch-long Type S-12
square-yard self US-2 screws spaced a
buglehead screws
max. of 8 inches o.c.
furred diamond
spaced 8 inches o.c.
along studs
mesh metal lath
along studs
—
Min. 2.5-pound-per- Wind-lock ULP-3W2square-yard self- UW-2 screws spaced
a max. of 8 inches o.c.
furred diamond
along studs
mesh metal lath
—
7
DRAINAGE
INSULATION
BOARD
ATTACHMENT
1
4
(RainScreen II)/
Positive: 35 psf
Negative: 30 psf
Min. 2-by-4
wood studs
at max. 16
inches o.c.
5
(RainScreen)/
Positive: 35 psf
Negative: 30 psf
Min. 2-by-4
wood studs
at max. 16
inches o.c.
5
Min. /8- inch-thick
gypsum sheathing
7
Min. /16-inch-thick
OSB or plywood
Wind-lock UW-1
screws spaced 8
inches o.c. along
studs
Min. 6d common
nails at 6 inches o.c.
along perimeter and
12 inches o.c. within
the field
5
Min. /8- inch-thick
Min. 18 gage gypsum sheathing
6
1
5
(RainScreen)/ steel studs at or /2- or /8-inchmax. 16
Positive: 65 psf
thick Dens-Glass
Negative: 55 psf inches o.c.
Gold gypsum
sheathing
—
—
Wind-Devil-2™
UST-3 screws
spaced a max. of 8
inches o. c. along
studs
1
Min. No. 6 by 1 /4inch-long Type S-12
buglehead screws
spaced 8 inches o.c.
along studs
For SI: 1 inch = 25 mm, 1 psf = 47.88 Pa, 1 pound = 0.454 kg.
—
Wind-Devil™
UWLM-2 screws
spaced per
Figure 2
—
ESR-1030 | Most Widely Accepted and Trusted
Page 6 of 12
FIGURE 1—CUTAWAY VIEW OF THE STO RAINSCREEN SYSTEM COMPONENTS INSTALLATION DETAIL
ESR-1030 | Most Widely Accepted and Trusted
Page 7 of 12
FASTENER SELECTION
FASTENER SELECTION
EPS BOARD
THICKNESS
(inches)
WIND DEVIL 2
FASTENER
LENGTH
(inches)
EPS BOARD
THICKNESS
(inches)
WIND DEVIL
FASTENER
LENGTH
(inches)
1 /2
1
UST-3
2 /8
5
1 /2
1
UWLM-2
2
2
UST-4
3
2
UWLM-3
2 /2
1
1
1
2 /2
UST-5
4
2 /2
UWLM-4
3
3
UST-6
4 /8
3
3
UWLM-5
3 /4
1
3
1
3 /2
UST-7
5
3 /2
UWLM-7
5
4
UST-8
6
4
UWLM-7
5
For SI: 1 inch = 25.4 mm.
FIGURE 2—STO DRAINAGE INSULATION BOARD FASTENING DETAILS (RAINSCREEN)
ESR-1030 | Most Widely Accepted and Trusted
Page 8 of 12
FIGURE 3—CUTAWAY VIEW OF STO RAINSCREEN II SYSTEM COMPONENTS INSTALLATION DETAILS
Fastener Attachment Pattern for Direct Attachment of Drainage Mat
into Solid Substrates
Fastener Attachment Pattern for Direct Attachment of Drainage Mat
into Studs
FIGURE 4—STO RAINSCREEN II INSULATION BOARD FASTENING DETAILS
ESR-1030 | Most Widely Accepted and Trusted
FIGURE 5—TYPICAL INSTALLATION DETAILS
Page 9 of 12
ESR-1030 | Most Widely Accepted and Trusted
FIGURE 5—TYPICAL INSTALLATION DETAILS (Continued)
Page 10 of 12
ESR-1030 | Most Widely Accepted and Trusted
Page 11 of 12
(EIFS CONTRACTOR NAME)
Completion Date:
THE EXTERIOR INSULATION AND FINISH SYSTEM (EIFS) INSTALLED ON THE STRUCTURE LOCATED AT THE
ADDRESS INDICATED BELOW:
CONFORMS
TO (EIFS MANUFACTURER NAME) RECOMMENDED INSTALLATION PRACTICES AND SECTION (S)
OF ICC-ES EVALUATION REPORT ESR-1030.
Address of Structure:
Product Component Names:
Adhesive(s)
Fasteners (mech)
Base Coat
Reinforcing Fabric
Finish Coat(s)
INSTALLATION
CONFORMS
A.
Substrate Type and Tolerance
B.
Weather-resistive Barrier
C.
EIFS
1.
2.
3.
4.
5.
Adhesive and/or Fasteners
Insulation
Reinforcing Fabric
Base Coat
Finish
D. The information entered above is offered in testimony that the EIFS installation conforms with the EIFS manufacturer's
installation methods and procedures, and the EIFS manufacturer's ICC-ES evaluation report.
NOTE: An installation card shall be received from the Sealant Installer indicating that the sealant installation conforms with the
ICC-ES evaluation report and sealant manufacturer's installation methods and procedures must accompany this declaration.
EIFS Contractor Company Name and Address:
Signature of responsible Officer:
Type Name and Title of Officer:
Telephone Number: (
cc:
Original:
Copy:
)
Building Department
EIFS
(Must be submitted with sealant
Manufacturer installer declaration.)
FIGURE 6
ESR-1030 | Most Widely Accepted and Trusted
Page 12 of 12
(SEALANT INSTALLER NAME)
Completion Date:
THE SEALANT INSTALLED IN CONJUNCTION WITH AN EXTERIOR INSULATION AND FINISH SYSTEM (EIFS)
INSTALLED ON THE STRUCTURE LOCATED AT THE ADDRESS INDICATED BELOW:
CONFORMS
TO (EIFS MANUFACTURER NAME) AND (SEALANT MANUFACTURER'S NAME) RECOMMENDED INSTALLATION
OF ICC-ES EVALUATION REPORT ESR-1030.
PRACTICES AND SECTION(S)
Address of Structure:
Product Component Names:
Primer(s)
Sealers
Bond Breakers
Sealant Materials
INSTALLATION
A.
B.
C.
D.
CONFORMS
Designer's requirements, details and instructions
Sealant manufacturer's details and requirements
Exterior insulation manufacturer's requirements
The information entered above is offered in testimony that the Sealant installation conforms with the sealant
manufacturer's installation methods and procedures, and the EIFS manufacturer's ICC-ES evaluation report.
Sealant Installer Company Name and Address:
Signature of responsible Officer:
Type Name and Title of Officer:
Telephone Number: (
cc:
Original:
Copies:
)
Building Department
EIFS Manufacturer
EIFS Contractor
Sealant Manufacturer
(Must be submitted with EIFS
contractor declaration.)
FIGURE 7