stopowerwall detail booklet - sto corp

®

StoPowerwall

CommercialDetail BookletSeries 4s.xx | November 2021

®Facades

Stucco Systems

StoPowerwall® is a stuccowall assembly withcontinuous air and moisturebarrier and moisture drainage. It combines the strength and durability of traditional stucco with StoGuard® moisture protection and Sto high performance finishes.

StoPowerwall® can be used in residential or commercial wall construction.

ATTENTION

The final design of any project is the sole responsibility of the Design Professional, with considerations for compliance with local building and design codes and requirements.Sto Corp. accepts no liability for design, engineering, or workmanship of any project.The information provided herein is in addition to other technical data provided by Sto Corp. (System Bulletin, Specification, Guide Details, etc). For more information, please visit www.stocorp.com

3800 Camp Creek Pkwy. SWBldg. 1400 • Suite 120Atlanta, GA 30331Tel: (800) 221-2397Fax: (404) 346-3119http://www.stocorp.comhelpdesk.stocorp.com

Sto Corp.

StoPowerwall®

Table of Contents

Design Details

2

Components System Components ........................................................................................................................................................ 4.01 System Components with StoCast Brick ............................................................................................................................ 4.01 SCB System Components with StoCast Wood ........................................................................................................................... 4.01 SCW System Components with Sto Crack Defense System over Concrete/CMU - w/o Air & Moisture Barrier ................................ 4.01 CMU System Components with MVES (Masonry Veneer Engineered System) ................................................................................4.01 MVES StoCreativ® Brick Finish .................................................................................................................................................... 4.05 StoGuard® Components .................................................................................................................................................... 4.09

Installation at Grade Termination at Grade: Sidewalk/Pavers .............................................................................................................................. 4.10 Termination at Balcony .................................................................................................................................................... 4.12

Installation at Windows Commercial Window Head ............................................................................................................................................... 4.20 Commercial Window Sill ................................................................................................................................................... 4.22 Stucco/Brick/Window Interface ......................................................................................................................................... 4.28 Installation at Joints Floor Line Joint with Nested Track ..................................................................................................................................... 4.50 One-Piece Control Joint .................................................................................................................................................... 4.52 One-Piece Expansion Joint .................................................................................................................................................4.52 A Two-Piece Expansion Joint ................................................................................................................................................ 4.52 B Joint at Inside Corner: Different Substrates ........................................................................................................................ 4.53

Installation at Corners Inside Corner: Common Substrate ..................................................................................................................................... 4.54 Outside Corner ................................................................................................................................................................. 4.55

Installation at Corners CMU/Steel Frame Junction ................................................................................................................................................ 4.58

Installation at Parapet, Saddle Flashing and Buildouts Termination at Parapet Cap .............................................................................................................................................. 4.60 Saddle Flashing Assembly ................................................................................................................................................ 4.64 Saddle Flashing ................................................................................................................................................................ 4.65 Buildouts ......................................................................................................................................................................... 4.70

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StoPowerwall®

Sto products are intended for use by qualified professional contractors, not consumers, as a component of a larger construction assembly as specified by a qualified design professional,general contractor or builder. They should be installed in accordance with those specifications and Sto's instructions. Sto Corp. disclaims all, and assumes no, liability for on-site inspections,for its products applied improperly, or by unqualified persons or entities, or as part of an improperly designed or constructed building, for the nonperformance of adjacent building compo-nents or assemblies, or for other construction activities beyond Sto's control. Improper use of Sto products or use as part of an improperly designed or constructed larger assembly or build-ing may result in serious damage to Sto products, and to the structure of the building or its components. STO CORP. DISCLAIMS ALL WARRANTIES EXPRESS OR IMPLIED EXCEPTFOR EXPLICIT LIMITED WRITTEN WARRANTIES ISSUED TO AND ACCEPTED BY BUILDING OWNERS IN ACCORDANCE WITH STO'S WARRANTY PROGRAMS WHICH ARE SUB-JECT TO CHANGE FROM TIME TO TIME. For the fullest, most current information on proper application, clean-up, mixing and other specifications and warranties, cautions and disclaimers,please refer to the Sto Corp. website, www.stocorp.com.

Attention

Property of Sto Corp. All Rights Reserved.

IMPORTANT: Components not identified asSto are furnished by other manufacturersand are not necessarily installed by tradeswho install the Sto products. Refer to proj-ect specific contract documents.

ComponentsDetail No.: 4.01

Detail shows theinstallation ofStoPowerwall Stuccoover a steel frame wall intwo coats.

Sto materials:

1] StoGuard® with StoEmeraldCoat®

2] StoPowerwall scratchcoat

3] Sto Powerwall browncoat

4] Sto Hot Prime® or StoPrimer

5] Sto finish (smooth ortextured)

Accessory materialsincluding means forfastening:

1] Expanded metal lath2] Casing bead3] Other accessories as

may be required (e.g.weep screeds, etc.)

Structure

Sheathing

Sto EmeraldCoat®

Code compliant paperor felt water-resistivebarrier (WRB)

Casing bead

Expanded metal lath

StoPowerwall scratchcoat

StoPowerwall browncoat

Sto primer

Sto finish (smooth ortextured)

Sto Powerwall® with StoCast Brick Detail No.: 4.01 SCBDate: November 2021

StoGuard®

Air & Moisture Barrier(See Note 1)

Water Resistive Barrier (WRB), Code Compliant Paper or Felt WRB

Metal Lath(See Note 3)

Sto Powerwall®

Scratch Coat(See Note 4)

Sto Powerwall®

Brown Coat(See Note 4)

Sto Bonding & PointingMortar(See Note 5)

StoCast Brick(See Note 5)

Sto Bonding & PointingMortar(See Note 5)

Notes:

1. See StoGuard Chart (22s.SG) for transition component, joint treatment, and rough opening protection product options.

2. Glass mat gypsum sheath-ing in compliance with ASTM C1177, exterior grade and Exposure 1 wood based sheathing, or cementitious sheathing in compliance with ASTM C1325.

3. Minimum 2.5 lb/yd2 (1.4 kg/m2) self-furred galvanized diamond mesh metal lath.

4. Stucco scratch and brown coat material in compliance with ASTM C926 and manufactured or listed by Sto Corp.

5. Refer to the StoCast Brick Application Guide for more information.

6. Components not identified as Sto are furnished by other manufacturers and are not necessarily installed by trades who install the Sto products. Refer to project specific contract documents.

Metal FrameSheathing(See Note 2)

®

ATTENTION

Sto products are intended for use by qualified professional contractors, not consumers, as a component of a larger construction assembly as specified by a qualified design professional, general contractor or builder. They should be installed in accordance with those specifications and Sto’s instructions. Sto Corp. disclaims all, and assumes no, liability for on-site inspections, for its products applied improperly, or by unqualified persons or entities, or as part of an improperly designed or constructed building, for the nonperformance of adjacent building components or assemblies, of for other construction activities beyond Sto’s control. Improper use of Sto products or use as part of an improperly designed or constructed larger assembly or building may result in serious damage to Sto products, and to the structure of the building or its components.

STO CORP. DISCLAIMS ALL WARRANTIES EXPRESSED OR IMPLIED EXCEPT FOR EXPLICIT LIMITED WRITTEN WARRANTIES ISSUED TO AND ACCEPTED BY BUILDING OWNERS IN ACCORDANCE WITH STO’S WARRANTY PROGRAMS WHICH ARE SUBJECT TO CHANGE FROM TIME TO TIME. For the fullest, most current information on proper application, clean-up, mixing and other specifications and warranties, cautions and disclaimers, please refer to the Sto Corp. website, www.stocorp.com.

www.stocorp.com


Sto Powerwall® with StoCast Wood Detail No.: 4.01 SCWDate: November 2021

StoGuard®




Sto Powerwall®


Sto Powerwall®


StoCast Wood Adhesive(See Note 5)

StoCast Wood(See Note 5)

StoColor® Wood Stain(See Note 5)

Notes:





5. Refer to the StoCast Wood Application Guide for more information.



®

ATTENTION



www.stocorp.com


Sto Powerwall® with Sto Crack Defense SystemSystem Components on Concrete or CMU

Detail No.: 4.01 CMUDate: November 2021

StoPowerwall®


StoPowerwall®


Sto Crack Defense:Sto Basecoat with Sto Mesh embedded

Sto Primer

Sto Textured Finish

Notes:

1. Sto Components:

a. Sto Powerwall® Scratch Coat

b. StoPowerwall® Brown Coat

c. Sto Crack Defense: Sto Basecoat with Sto Mesh embedded.

d. Sto Primer

e. Sto Textured Finish Coat

2. Stucco Scratch and Brown Coat material in compliance with ASTM C926 and manufactured or listed by Sto Corp.

3. Construct a site built mock-up using materials and sub-trades associated with the project to verify installation sequencing, detailing, and aesthetics.

4. Refer to applicable Sto guide specifications, product bulletins, Tech Hotlines, and other Sto guide details for additional information.


Concrete or CMU

®

ATTENTION



www.stocorp.com


Sto Powerwall® MVES

ComponentsDetail No.: 4.01 MVESDate: December 2020

StoGuard®




Stucco Scratch andBrown Coat(See Note 4)

StoColl KMAdhesive Mortar

Masonry Veneer(See Note 5)

Masonry Veneer Grout(See Note 6)

Notes:





5. Veneer options: thin brick, thin stone, ceramic tile or cultured stone in conformance with applicable building code requirements.

6. Portland cement-based grout / pointing mortar in compliance with ANSI 118.7



®

ATTENTION



www.stocorp.com


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StoPowerwall®



StoCreativ® Brick FinishDetail No.: 4.05

Step 11] Install StoPowerwall

stucco [Refer to StoDetail 4.01].

2] Install Sto PrimerCreativ over the StoPowerwall base coat.

3] Optional: Apply asecond application ofSto Primer Creativ toprovide a slightlyuneven color to simu-late variablemortar color.

Step 24] Apply the Sto brick

template to the dryprimer.

Step 35] Install appropriate Sto

finish to match theCreativ Brick texturespecified. Refer toSto Creativ BrickSpecification A100 FF

Step 46] Remove the template

before the finish dries.7] Optional: After the fin-

ish dries, touch up thefinish with StoCoat®Acryl or StoTique® incolors and pattern tomatch approved sam-ple.

Step 1

StoPowerwall Stucco

Sto PrimerCreativ

Step 2

Sto brick template

Step 3

Sto finish

Step 4

Template removed

Finish touch-up

Step 1

Step 2

Step 3

Step 4


Attention

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Notes:

SSttooPPoowweerrwwaallll®

Attention

SSttooGGuuaarrdd® CCoommppoonneennttssDetail No.: 4.09

StoGuard detailcomponent (see tablebelow for StoGuardproduct options)

StoGuard® sheathing jointtreatment (see table belowfor StoGuard productoptions)

Rough OpeningTreatment (see tablebelow for StoGuardproduct options)

Sto EmeraldCoat®

Property of Sto Corp.All Rights Reserved.

IMPORTANT: Components not identified as Sto arefurnished by other manufacturers and are not nec-essarily installed by trades who install the Sto prod-ucts. Refer to project specific contract documents.

StoGuard® Components for use with StoPowerwall®

Product or Product CombinationSheathing

JointRough

OpeningDetail

Component

StoGuard RapidFill

StoGuard RapidSeal

StoGuard Fabric embedded in Sto Emerald CoatStoGuard Transition Membrane embedded inStoGuard RapidFill, StoGuard RapidSeal orSto Emerald Coat

Sto Gold Fill with StoGuard Mesh orSto Detail Mesh

StoGuard Tape

1] Refer to Sto detail series20.xx or 21.xx for completeinstructions regardingmaterial options andapplication instructions forStoGuard products.

2] Flashing must be installed atthe head and sill of windowopenings and integrated intothe StoGuard system withStoGuard detail components.

3] The upper edge of StoGuardTape must be lapped with aStoGuard detail componentto direct water away from thesubstrate.

4] Refer to StoGuard TransitionMembrane installation guidefor step-by-step instructionsfor detailing with StoGuardTransition Membrane.

5] Refer to the individual Stoproduct bulletin andapplicable Sto specificationfor the products being used.

6] Refer to the most current Stoproduct bulletins,specifications, installationguides and other informationare available atwww.stocorp.com.

Sto products are intended for use by qualified professional contractors, not consumers, as a component of a larger construction assembly as specified by a qualified design professional,general contractor or builder. They should be installed in accordance with those specifications and Sto‘s instructions. Sto Corp. disclaims all, and assumes no, liability for on-site inspections,for its products applied improperly, or by unqualified persons or entities, or as part of an improperly designed or constructed building, for the nonperformance of adjacent building compo-nents or assemblies, or for other construction activities beyond Sto’s control. Improper use of Sto products or use as part of an improperly designed or constructed larger assembly or build-ing may result in serious damage to Sto products, and to the structure of the building or its components. STO CORP. DISCLAIMS ALL WARRANTIES EXPRESS OR IMPLIED EXCEPTFOR EXPLICIT LIMITED WRITTEN WARRANTIES ISSUED TO AND ACCEPTED BY BUILDING OWNERS IN ACCORDANCE WITH STO‘S WARRANTY PROGRAMS WHICH ARE SUB-JECT TO CHANGE FROM TIME TO TIME. For the fullest, most current information on proper application, clean-up, mixing and other specifications and warranties, cautions and disclaimers,please refer to the Sto Corp. website, www.stocorp.com.

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Attention www.stocorp.com

Termination at Grade: Sidewalk / PaversDetail No.: 4.10

1] Install barriermembrane at bottom offrame wall to provideprotection from rainpenetration below thestucco.

2] Install stucco weepscreed or flashing toterminate minimum 1“(25 mm) below sill plate .

3] Provide minimum 2" (50mm) clearance betweennose of weep screed andsidewalk / pavedsurface. Increasedistance when snow andice may accumulate

4] Lap StoGuard® detailcomponent onto weepscreed to direct water tothe exterior. See Stodetail 4.09

5] Provide waterproofing atthe foundation to protectthe support structure from

rising damp.

Structure

Sheathing

Sto EmeraldCoat®

Code Compliant paperor felt water-resistivebarrier (WRB)

Expanded metal lath

StoPowerwall scratchcoat

StoPowerwall browncoat

Sto primer


StoGuard® detail com-ponent (note 4)

Weep screed orflashing

Barrier membrane

Sidewalk / Pavers

Foundation water-proofing



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Attention

Termination at BalconyDetail No.: 4.12

1] Provide continuity ofwater protection at thewall / deck interface.

2] Provide clearancebetween the underside ofthe stucco and the deckto allow adequatedrainage.

3] Refer to Sto Detail 4.45for termination and drain-age at the edge of thefloor slab.

4] Lap StoGuard® Detailcomponent onto weepscreed to direct water tothe exterior. See Stodetail 4.09.

Structure

Sheathing

Sto EmeraldCoat®


Expanded metal lath

StoPowerwall stucco

Sto primer


StoGuard® detail com-ponent (note 4)

Deck waterproofinglapped behind flashingor weep screed

Flashing or weepscreed

Backer rod andsealant

Deck



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Date:December 2015

Notes:

StoPowerwall®

Sto products are intended for use by qualified professional contractors, not consumers, as a component of a larger construction assembly as specified by a qualified design professional,general contractor or builder. They should be installed in accordance with those specifications and Sto's instructions. Sto Corp. disclaims all, and assumes no, liability for on-site inspections,for its products applied improperly, or by unqualified persons or entities, or as part of an improperly designed or constructed building, for the nonperformance of adjacent building componentsor assemblies, or for other construction activities beyond Sto's control. Improper use of Sto products or use as part of an improperly designed or constructed larger assembly or building mayresult in serious damage to Sto products, and to the structure of the building or its components. STO CORP. DISCLAIMS ALL WARRANTIES EXPRESS OR IMPLIED EXCEPT FOREXPLICIT LIMITED WRITTEN WARRANTIES ISSUED TO AND ACCEPTED BY BUILDING OWNERS IN ACCORDANCE WITH STO'S WARRANTY PROGRAMS WHICH ARE SUBJECTTO CHANGE FROM TIME TO TIME. For the fullest, most current information on proper application, clean-up, mixing and other specifications and warranties, cautions and disclaimers,please refer to the Sto Corp. website, www.stocorp.com.

Attention

Commercial Window HeadDetail No.: 4.20

1] Provide a mock-upinstallation and testusing materials andsubstrates associatedwith the project.

2] Provide flashing installedover the window to directwater away from thewindow. Verify require-ments for head flashingwith local codes and win-dow manufacturer.

3] Protect roughopening against waterpenetration by wrappingwith Sto Guard®. Directany water penetration tothe exterior at or abovethe sill pan flashing.

(Refer to Sto detail 4.09)

4] Provide continuous airbarrier connectionaround the perimeter ofthe window to reduceleaking, condensationrelated to air movementand sound and insectintrusion.

5] Provide window insert tooptimize sealant configu-ration.

Sheathing

Sto Detail Component(see Sto Detail 4.09)

Head flashing

Drainage accessory

Air seal aroundwindow perimeter

Window


Closed cell backer-rodand sealant

Sto primer

StoPowerwall stucco

Expanded metal lath

Casing bead


Sto EmeraldCoat®

StoGuard® roughopening treatment(Sto Detail 4.09)

Supporting structureProperty of Sto Corp. All Rights Reserved.


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StoPowerwall®



Commercial Window SillDetail No.: 4.22

1] Provide a mock-upinstallation and test usingmaterials and substratesassociated with the project.

2] Prepare opening prior to theinstallation of the window.Coordinate installation withother associated substrates.

3] Provide StoGuard®

air/moisture barrier and otherassociated trim and accesso-ries as noted in Sto detail4.09.

4] Provide pan flashing at sill todrain water to the exterior.

5] In cold climates this detail willprovide little insulationaround the pan flashing. Thedesigner should specify apan design that will providea thermal break.

6] Provide continuous air barrierconnection around perimeterof the window to reduce leak-ing, condensation related toair movement,sound, andinsect intrusion.

Structural support

Sheathing

Sto rough openingtreatment (see StoDetail 4.09)

Sto EmeraldCoat®


Expanded metal lath

Casing bead

StoPowerwall stucco

Sto primer


Closed cell backer-rodand sealant

StoGuard® lapped intopan flashing

Air seal continuousaround interiorperimeter ofwindow

Window

Pan flashing

Sealant gasket

Sill wedge


Attention

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Attention



Stucco/Brick/Window InterfaceDetail No.: 4.28

1] Provide a mock-upinstallation and test usingmaterials and subtradesassociated with the project.

2] Prepare opening prior to theinstallation of the window.Integrate flashing to drain tothe exterior as recommend-ed by the Brick Industry ofAmerica*.

3] Provide moisture barrier andother associated trim andaccessories as noted in Stodetail 4.01.

4] In cold climates the flashingdepicted could create a ther-mal bridge. In those casesprovide a thermal breakbetween sill flashing andinterior.

5] Maintain continuity of weath-er barrier behind claddings.

6] Flash StoPowerwallstucco termination to drainwater away from brick cavity.

* BIA Technical Notes 7 -Water Resistance of BrickMasonry, Design and Detail-ing Part 1 Feb. 1985 (April2001)

Supporting structure

Sheathing

StoGuard® wrappedinto opening (See StoDetail 4.09)


Sto EmeraldCoat®

Air seal

Casing bead

Window

Casing bead withweeps

Flashing

Brick sill

Sill flashing

Brick Tie

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Floor Line Joint with Nested TrackDetail No.: 4.50

1] Do not attach uppersheathing to nestedtrack. Only attachlower sheathing tonested track.

2] The maximumallowable sheathingspan at the floor line is8“ (200mm) or as rec-ommended by thesheathingmanufacturer.

3] A barrier membrane isinstalled over the jointin the sheathing toprovide air barrier con-tinuity and secondaryweather protection atthe joint location.

4] Provide a minimum3/4” (20mm) joint toaccommodatedeflection of the floorslab.

5] Install a flashing todirect water beyondthe face of thecladding below.

Structure

Sheathing

Sto EmeraldCoat®


Expanded metal lath

StoPowerwall stucco

Sto primer


Sto detail component(refer to Sto Detail4.09)

Weep Screed

Flashing

Barrier membrane

Backer rod

Backer rod andsealant

Casing bead


Attention

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StoPowerwall®


IMPORTANT: Components not identifiedas Sto are furnished by other manufactur-ers and are not necessarily installed bytrades who install the Sto products. Referto project specific contract documents.

One-Piece Control JointDetail No.: 4.52


Attention

.

Sheathing

Sto


Stucco

Sto Primer

Sto Finish (smooth ortextured)

Joint accessory

Expanded metal lath.DISCONTINUOUSBENEATH JOINTACCESSORY

1] Provide one-piece control joints at mini-mum 144 ft² (13.4 m²)intervals and belowwindow, door, andsimilar openings in thewall construction.

2] Do not exceed lengthto width ratio of 2.5:1in joint layout and donot exceed 18 ft (5.5m) in any directionwithout a joint.

3] Lap metal reinforce-ment (lath) over jointaccessory flanges andwire tie. Alternatively,install metal reinforce-ment, snip (cut) at lineof accessory, and wiretie joint accessoryover metal reinforce-ment. Metal reinforce-ment MUST BE DIS-CONTINUOUSBENEATH THEACCESSORY.

4] Comply with ASTM1063.

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StoPowerwall®



One-Piece Expansion JointDetail No.: 4.52a

1] Provide expansion jointswhere movement instucco or substrate isanticipated:• at floor lines,• at dissimilar construction

materials,• at existing building or expan-sion joints in the construction,• at changes in building height,• at columns or

cantilevered areas,• at maximum 144 ft2 (13.4 m2)intervals

2] Do not exceed length towidth ratio of 2.5:1 in expan-sion joint layout and do notexceed more than 18‘(5.5m) in any direction with-out an expansion joint.

3] Provide barriermembrane over the joint inthe sheathing to maintainwaterproofing/air barrierintegrity. Support with aclosed cell backer rod.

4] Provide one piece expan-sion joint accessory over themoisture barrier and lap theexpanded metal lath overthe flanges. Metal lath mustbe discontinuous at theexpansion joint.

5] Comply with ASTM 1063.

Structure

Sheathing

Sto EmeraldCoat®

Closed cell backer rod

StoGuard® TransitionMembrane embeddedin Sto EmeraldCoat orStoGuard Rapid Seal


Expanded metal lath

Expansion jointaccessory

StoPowerwall Stucco

Sto primer



Attention

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StoPowerwall®



Two-Piece Expansion JointDetail No.: 4.52b

1] Provide expansion jointswhere movement instucco or substrate isanticipated:• at floor lines,• at dissimilar construction

materials,• at existing building or expan-sion joints in the construction,• at changes in building height,• at columns or

cantilevered areas,• at maximum 144 ft2 (13.4 m2)intervals

2] Do not exceed length towidth ratio of 2.5:1 in expan-sion joint layout and do notexceed more than 18‘(5.5m) in any direction with-out an expansion joint.

3] Provide barriermembrane over the joint inthe sheathing to maintainwaterproofing/air barrierintegrity. Support with aclosed cell backer rod.

4] Provide back-to-back casingbeads or two piece expan-sion joint accessory over themoisture barrier and lap theexpanded metal lath overthe flanges. Metal lath mustbe discontinuous at theexpansion joint.

5] Provide backer rod andsealant between the casingbeads.


Structure

Sheathing

Sto EmeraldCoat®


StoGuard® TransitionMembrane embeddedin Sto EmeraldCoat orStoGuard Rapid Seal


Expanded metal lath

Casing bead

StoPowerwall™ Stucco

Sto primer



Sealant


Attention

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Joint at Inside Corner: Different SubstratesDetail No.: 4.53

1] Install Sto joint treatmentapproximately 4“(100mm) onto each face.Refer to Sto Detail 4.09.(StoGuard® Mesh is notrecommended overmasonry substrate.) Donot extend StoGuard onCMU beyond theexpanded flange of theaccessory.

2] Apply Sto EmeraldCoat®

over sheathing sub-strate.

3] Inside corner joints arenot recommended wherethe substrateconstruction on eitherside of the corner is thesame.

4] StoPowerwall Stuccoapplied directly to CMUfunctions as a water andair resistant assembly.

Concrete masonry

Steel frame

Sheathing

Sto joint treatment(see Sto Detail 4.09)

Sto EmeraldCoat®

Code compliant paperor felt water resistivebarrier (WRB)

Expansion joint

Expanded metal lath

StoPowerwall stucco

Sto primer



Attention

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Inside Corner: Common SubstrateDetail No.: 4.54

1] Install StoGuard® jointtreatment minimum 4“(100 mm) onto eachface of inside cornerand trowel Sto jointtreatment over themesh. Refer to StoDetail 4.09.

2] Apply StoEmeraldCoat® tosheathing substrate.

3] Inside corner jointsare not recommendedwhere the substrateconstruction on eitherside of the corner isthe same.

Structure

Sheathing

Sto joint treatment(See Sto Detail 4.09)

Sto EmeraldCoat®


Expanded metal lath

StoPowerwall stucco

Sto primer



Attention

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Outside CornerDetail No.: 4.55

1] Install expanded metallath continuousaround corner withoutbreak for minimum 24”(610 mm).

2] Attach corner beadover lath.

3] Metal accessories aresusceptible tocorrosion in costalenvironments. Metalcorner beads withsolid metal nosesare susceptible to cor-rosion in exposedexterior application.


Structure

Sheathing


Sto EmeraldCoat®

Code compliant paperor felt water-resistivebarrier (WRB).

Expanded metal lath

Corner reinforcing

StoPowerwall stucco

Sto primer



Attention

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Attention



CMU/Steel Frame JunctionDetail No.: 4.58

1] Provide a drained jointat the interface offrame and masonrysubstrates.

2] Protect the steelframe from the poten-tial of rising dampwithin the concretemasonry units.

3] Do not extendbarrier membrane onCMU beyond theexpanded flange ofthe accessory.

Structure

Sheathing

Sto EmeraldCoat®


Expanded metal lath

StoPowerwall stucco

Sto detail component(see Sto Detail 4.09)

Flashing

Weep Screed

StoGuard TransitionMembrane emeddedin Sto EmeraldCoat orStoGuard® RapidSeal

Casing bead

Backer rod

Barrier membrane

Sto primer


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StoPowerwall®



Termination at Parapet CapDetail No.: 4.60

1] Install StoGuard®

System over theparapet supportingstructure lapping ontocompatible sheathing.

2] Provide a barriermembrane over theparapet blocking andintegrate it with theroofing or deck water-proofing assembly.This provides addition-al protection againstwater intrusionthrough penetration ofmechanical fasteners.

3] Parapet illustratedis uninsulated.Conditioned interior airshould not circulate inthis space if there is arisk of condensation.

4] Provide a minimum 3"(75 mm) overlap offlashing over the faceof the stucco.Increase overlap withbuilding height.

Cap flashing

Roof membrane

Blocking

StoGuard detail com-ponent (see Sto Detail4.09)

Casing bead

Sealant

Sto EmeraldCoat®


Expanded metal lath

StoPowerwall stucco

Sto primer



Attention

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StoPowerwall®


Attention



Step 1C

A

B

Step 2

Step 3

Saddle Flashing AssemblyDetail No.: 4.64

1] Pieces ‘A’ and ‘B’ arefolded as shown andare mirror images ofeach other. The flat topportions are designedto overlap over thelower parapet wall andflat against the higherwall. The turnouts areto match the thicknessof the stucco plus 1/4“(6 mm) so water willdrain beyond thestucco finish.

2] Piece ‘C’ is designed tostraddle the parapetwall. The upturnedflange is placed behindthe flat flanges of ‘A’and ‘B’ and the twodown- turned legs inter-lock over the lower por-tions of ‘A’ and ‘B’ in ashingle fashion.

3] The assembled piecesare installed againstStoGuard® air/moisturebarrier and into asealant gasket.

4] Install Sto jointtreatment and StoEmeraldCoat® over thetop flanges to ensuredrainage to the exteriorof the cladding.

5] Provide StoPowerwallStucco as shown in Stodetail 4.65.

Turn out flanges tomatch thickness ofstucco plus 1/4“(6mm)

Flashing assembledover StoGuard®

Waterproofing/AirBarrier

Parapet

Install Sto jointtreatment (see StoDetail 4.09) over upperflanges of the flashing

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Attention



Saddle FlashingDetail No.: 4.65

1] Install StoPowerwallstucco over StoGuard®

air/moisture barrier(see Sto detail 4.01).

2] Lap stucco over theflashing assembly atthe top by aminimum of 2“(50mm)and terminate with1/2” (13mm) jointaround the perimeter.

3] Refer to Sto Detail4.64 for assembly ofsaddle flashing.

4] Provide parapet capflashing. (Refer toSto detail 4.60 fortermination at aparapet cap flashing.

Structure

Sheathing


Sto EmeraldCoat®

Expanded metal lath

StoPowerwall stucco

Sto primer


Flashing or weepscreed

Saddle flashingassembly (see StoDetail 4.64)


Casing bead

Backer rod andsealant installedbetween casing beadand flashing

StoPowerwall stucco

R

www.stocorp.com

Date:December 2015

Notes:

StoPowerwall®



BuildoutsDetail No.: 4.70

1] Install foam shapes overStoPowerwall stucco usingSto adhesive.

2] Cover the shapes with Stobase coat and reinforcingmesh lapping onto the faceof the stucco a minimum of2.5" (65 mm).

3] The exposed surface musthave a minimum slope of1:2 (27°). In locationswhere ice and snow mayaccumulate increase slope.

4] Provide Sto Flexyl andmesh on upper surfaces ofbuildouts projecting morethan 2” (50 mm) from thestucco surface lapping overthe base coat and stucco toprovide a weather tight seal.

5] Consult local building coderequirements for maximumallowable foam thickness

6] Apply Sto Primer over allsurfaces to provide a uni-form color base for the Stofinish.

Structure

Sheathing


Sto EmeraldCoat®


Expanded metal lath

Sto Flexyl and mesh

Sto Primer

Sto base coat andmesh lapped ontostucco

Foam shape

Sto adhesive

StoPowerwall stucco

Sto primer



Attention

stopowerwall detail booklet - sto corp

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