stucco installation standards

Available in the Eastern U.S. only, AMX 775 C is available in 20 standard colors, and can be customized to match any color. Other issues that cause cracking issues in plaster can be brought on by improper installation of lath, improper mixing procedures and … Embed all accessory ends, angles, butts, and intersections in sealant at time of installation. May 2015 Q: When installing control joints in a portland cement stucco system, is it necessary to cut the lath? exterior with standard trim. Stucco Installation Over Wood: Conventional stucco over wood should always be applied as a three-coat system. surface for $8,000 , while the high cost is around $18,000 for EIFS stucco with trim over a 1,500 sq.ft. This specification covers the standard requirements for the application of full thickness Portland cement-based plaster for exterior (stucco) and interior work. The code references the ASTM C926 for the application of stucco and the ASTM C1063 for the application of the metal lath (we will cover that later - assume for now it does). But, like any building product, it's … Casing Bead. Color retention is relatively good. Installing a strip of self-adhering flashing or self-sealing membrane under trim, banding, and lath accessories (both vertical and horizontal) helps protect against water intrusion where fasteners penetrate the WRB. Standard Practice for Installation of Exterior Windows, Doors and Skylights1 This standard is issued under the fixed designation E 2112; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. The bottom edge of the weep screed is placed not less than 1 inch below the joint formed by the foundation and framing. Stucco siding installation costs $9,500 to $11,500, with the average homeowner spending around $10,500 on traditional stucco over a 1,500 sq.ft. EIFS and One-Coat Systems Standards are based off of C926 %#A*#0+-0@ 1. h޼W[o�8�+~lU��_"U�Rz��5��HQRȡYAI�-�~g�@�m�C�*�����|�0ˆ�G� �b$ At the intersections of vertical and horizontal control joints, the horizontal control joint shall be cut to fit and butted to the continuous, uninterrupted, vertical control joint. Stock and preferably hand drywall prior to plaster application 3. The refore, ASTM developed standards for stucco (Portland Cement-Based Plaster) in the manufacturing, testing and installation of stucco cement, lath and accessories, and aggregates to be applied. Raw earth, grade shall be not less than 4 inches below the nose of the weep screed, paved surfaces shall be not less than 2 inches below the nose of the weep screed. It also sets forth tables for proportioning of various plaster mixes and plaster thickness. HE (High Efficiency-Continuous Insulation) 14 14. The most current version of ASTM C-1063-19 – Standard Specification for Installation of Lathing and Furring to Receive Interior and Exterior Portland Cement-Based Plaster provides very little direction. Standard practices and specifications for the materials in or in contact with plaster and stucco, as well as those for their application, can help assure the strength and reliability that is inherent with the inclusion of portland cement. Typical locations for control joints would include: off corners of windows, structural plate lines (expecting minimal movement) and junctures of dissimilar substrates. Describe those components specified, as listed elsewhere in these standards ; 2. Staples shall have crowns not less than ¾ inch and shall engage not less than three strands of lath and penetrate the wood framing members not less than ¾ inch. The following materials shall be presented to the owner following the installation of the Multicoat Hard Coat Stucco … These are two small docu- ments with prescriptive requirements that are easily read and understood. Discover (and save!) 7.1.4. Since it is twice as thick as one co… Door Installation Sequencing Guide Pyatok Architects and Allana Buick & Bers, Inc. 12/5/2014 Notes: 1. endstream endobj 34 0 obj <> endobj 35 0 obj <> endobj 36 0 obj <>stream Maximum on center spacing of framing members shall be no more than 24 inches. •฀Follow฀the฀StoTherm฀EIFS฀Installation฀Inspection฀Checklist฀at฀the back of this book to verify conformance of work to installation requirements. Lapping of metal plaster base. This project’s low cost is using a thin-coat stucco over a 1,500 sq.ft. Hard-coat traditional stucco inspection, troubleshooting, repair & standards. The report shall: 1. 0 Install Cement Plaster, Lath, accessories including control joints in accordance with ASTM C 926 Standard Specification for Application of Portland Cement-Based Plaster and ASTM C 1063 Standard Specification for Installation of Lathing and Furring to Receive Interior and … “There are two types of stucco houses, one that is cracked and ones that are going to”. Control joints must be continuous through decorative bands or other embellishments, so they will not restrict panel movement. H��UKk�0���цXь4��Bi���K�ac� �RH���ɶ6/JY��㛷|������մ��&0`��.ǿh���l9��k��=?�,ϻ�s���;���f d�O�}g*h�. B. The weight of the stucco is supported by the nails that hold the lath. Colored Stucco. The builder also should oversee the stucco installation. The scratch coat must be scored horizontally on vertical surfaces. Schedule significant site work grading and compacting prior to plaster application. • The base coat relies on adhesion and embedment in the lath, while the additional coats can benefit from suction and bond to the base coat. Any conditions that do not allow the installation to be performed as outlined in this guide require immediate notification of the Architect. Lets take a look at each technique as well as the advantage that each has to offer. >�7>1/٠O\��v��O�|�C� ��.jǓ��C�9P�V��%��#�5n�G�~GX���P�xG���h,��������:�Y���@W/��鿄�)J����;D}Z:A|��E��=� �����? Lathing over Framed Construction 16 16. h�TR�n�0��[t�,?� ��&2�&�.K�k������D7A��#�H��v���d�~RG\�V{���W���\�Բ��W�t���2/8���iX����/pw:���7���L)>�s8�-h4,۽H�*G�, o���D���{�8;��K�#4����-����&UgԷ��V-x�(DT� ���mB]0l�)gD�=��$�ܲ�su����ֱY��8��M�r�P�D�5 Since the base coats are relatively thin, especially in PB systems, they are susceptible to impact damage. Lathing over Framed Construction 16 16. For example, one coat stucco is actually a two-step process. 3. 2. endstream endobj 39 0 obj <>stream Lath shall be attached to horizontal wood framing members with 1.5 inch roofing nails and to vertical wood framing members with 6d common nails or 1 inch roofing nails driven to penetration of not less than ¾ inch, or 1 inch wire staples driven flush with the plaster base. endstream endobj startxref Here, using a field report of leaks at horizontal control joints in a hard-coat stucco wall system, we describe the inspection, diagnosis, repair, and proper compared with improper installation of traditional stucco … The systems are made-up of high-performance components including StoGuard® fluid-applied air and moisture barrier, StoPowerwall® Stucco and Sto textured finishes. 3. In lieu of a bonding agent, a dash coat, roughing the surface, or metal lath are also acceptable methods for bonding. ��S��OZ���$L����t��Vt�Hfi/����I'x�h��vu��eDG�~/)�)�>M.w��w2/S��N�n�o�� :^�ҷK�|U�_^Bl���ˊ����h `� The Stucco Institute is an educational institution formed specifically to serve the Florida stucco industry in Zones 1, 2, and 3 as defined by the International Energy Conservation Code. State which components were inspected as listed elsewhere in these standards. All accessories must be installed to receive a minimum 7/8 inch application for a three-coat system over wood. C1861 is the stucco industry’s product standard for lathing accessories and lathing fasteners, which defines individual characteristics and functions. However, the use of poor materials, improper additives and untrained installers can result in stucco failures. Stock and preferably hand drywall prior to ... Stucco as a brittle material is subject to an occasional crack when subjected to enough stress 2. ��cGpC��dV�����QG�Ct$�D0x4����0Yd���8[�%�M�%�"Y��{�D�%B�m�Hi�ww7�]�������{�U�V�gz��d�M�5HGU2�&��l�F�*]�M\s}t�;٪���u7_�)�Ϗ�Y�p�h�;ǪӴȖ��� The big advantage to three coat is its strength and durability. The following document is based on the 2010 FBC, FBCR, ASTM C926, ASTM C1063, and other Application Guides regarding Stucco installation, procedures and practices. Project Specifications most often reference these standards: • ASTM C 897, “Standard Specification for Aggregate for Job- Mixed Portland Cement- Where cement plaster (stucco) is to be applied to lath over frame construction, measures shall be taken to prevent bonding between the cement plaster and the water resistive barrier. Control Joints in Stucco. Abstract This specification covers the standard requirements for the application of full thickness Portland cement-based plaster for exterior (stucco) and interior work. For installation in temperatures less than 40°F (4°C), temporary shelter and supplemental heat must be provided and maintained for … It's an attractive, low-maintenance and fire-resistant sheathing. Store out of sunlight. EIFS Standards Conversions: EIMA to ASTM Frequently, EIMA is asked for copies of its former standards. Stucco Installation Labor, Basic Basic labor to install stucco with favorable site conditions. Lath shall be lapped ½ inch at the sides, 1 inch at ends. Control or expansion joints are the Stucco industry’s solution for minimizing and controlling cracking in stucco wall systems. Stucco wall covering method choices, methods, & comparisons: This article discusses types of stucco building exterior wall materials and installation methods, including stucco recipes, three-coat stucco installations, stucco wall expansion joints, metal-lath stucco systems, how stucco is applied to walls, thin coat stucco systems, This method is highly encouraged and considered Recommended Practice. ���'��4t@���핷pUJ�m���9\�P�o*ǜ�d��p^�4#�FY��F� `` Q �`N�RD4$�b��b�0�8�����r�:��1�c�c��t�i Starting the Installation, Flashing Rough Openings-WaterMaster Stucco System 10 12. Use Section 9.28 of 1997 ABC and ASTM Standards C926 and C1063 as base references in developing the program. Issued: June 2015 LATH GALVANIZING SPECIFICATIONS IN BUILDING CODES Corrosion protection of metals including lathing for cement plaster (stucco) is governed by building codes. Includes planning, equipment and material acquisition, area preparation and protection, setup and cleanup. There is controversy and confusion in our industry about their use and installation – particularly as to whether the lath should be continuous or discontinuous (cut) at the control joint. h�bbd```b``��� �q�de��A$S XMXDLʀH����;0i&_�e���1`�3A�� by adopting standards for evaluation of factors such as thickness, number of coats, quality of materials (sand, water, lath, membrane, etc), and workmanship. ASTM C 1328, Standard Specification for Plastic (Stucco) Cement; CSA A3001, Cementitious Materials for Use in Concrete; CSA A3002, Masonry Cement; Find a cement supplier. Today, the EIFS industry is able to place a checkmark beside exterior wall expectations with unparalleled confidence and affirmed experience. Typical locations for expansion joints would include: structural plate lines (expecting significant movement) and at structure expansion joints. It also sets forth tables for proportioning of various plaster mixes and plaster thickness. An 8 feet x 20 feet x 7/8 inch thick stucco panel will weigh 1,600 to 1,800 pounds. Stucco provides a durable, low maintenance finish that adds lots of character to a house. In multistory, frame construction, where stucco wall covering is continuous past a floor; a weep screed should be provided, with expansion/contraction capabilities, or other effective means to drain away any water that may get behind the plaster.  A weep screed shall be installed per ASTM Standard 1063-06 section 7.11.5. The refore, ASTM developed standards for stucco (Portland Cement-Based Plaster) in the manufacturing, testing and installation of stucco cement, lath and accessories, and aggregates to be applied. Imasco Minerals Inc. E4�=M8�C8��d � ��rAL@x����"���$+��. All Rights Reserved Stucco HQ is a provider of marketing services to local stucco contractors who offer stucco repair, stucco installation or removal services. They shall be tied between supports with wire at intervals not more than 9 inches.  The termination of the stucco at the base of a wood structure shall be per ASTM C-926, Section A2.2.2. One sign of a sloppy job is stucco applied tight against windows or doors, an indication that no casing bead has been installed. FBC 2510.3 Installation, references ASTM C 926 requires form ties or other obstructions (including masonry cut nails for clean out opening forms) to be removed or trimmed back even with the surface of the solid base. A2.1 Exterior plaster (stucco) is applied to outside surfaces of all types of structures to provide a durable, fire-resistant covering. When required by ASTM C 926, Section 5.2.2; an exterior bonding agent, conforming to ASTM C 932, shall be used on all masonry surfaces. �UVDJ�S$R�\��&� yE�u�e�tq9�p�e�����i�q����p��+�O�+� �'�V The distance between control joints shall not exceed 18 feet, in either direction, or exceed length- to-width ratio of 2-1/2 to 1. The ASTM standard requires the paper to be installed, continuous, behind the joint material and that lath shall not be continuous through control joints, but shall be stopped and fastened (wire tied) on each side of the control joint. Cracking is inevitable when it comes to stucco, just like any type of cement based product. We continue to revolutionize the industry with StoMachine Technology – a faster, more economic way to apply EIFS; StoDesign, consultative design and color services, an AMX 775 C. Amerimix AMX 775 C Colored Stucco a portland-based stucco factory blended with finely-milled pigements to ensure precise, consistent, durable colors in scratch, brown and finish coat applications. Conventional stucco over wood should always be applied as a three-coat system. Starting the Installation: Standard - Non WaterMaster Assembly 12 13. Minor cracking should be expected / This cannot be held with a few nails. If the subject is stucco, ASTM International’s committee on gypsum and related building materials and systems (C11) is on it. Scratch coat =3/8 inch thick, brown coat =3/8 inch thick, and finish coat =1/8 inch thick. This project’s low cost is using a thin-coat stucco over a 1,500 sq.ft. Expansion, wind and stress all play vital roles in why cracking occurs. Attachment of Metal Plaster Bases to Masonry/Concrete 17 18. h�TR=o�0��7��`�(b���&����T�eȐ_�Gu ���{�t���ޚ؇��W������ Gc���Z7��j�X�ˊSo��&c����� These standards are no longer supported by EIMA and are out of print as they are now ASTM standards. DIY Repairs There is a saying out there that goes…. One-piece and two-piece accessories are available to meet this requirement. exterior with standard trim. The ECC and its membership have set the highest standard for exterior wall systems. It can be applied with either a one coat or three coat process, but there is some confusion about the methods. Starting the Installation: Standard - Non WaterMaster Stucco System 12 13. Our mission is to promote the manufacturing and installation of quality one-coat stucco through education to NOCSA members, building departments, architects and specifiers, builders, lath and plaster contractors and the public; to meet and exceed the standards that are set for the industry. StoPowerwall® Stucco Systems are advanced integrated wall systems that combine the best protective and aesthetic elements into a superior wall cladding. Our industry leading EIFS, Stucco, Coatings and Concrete Restoration products are manufactured in four plants located strategically across North America to serve over more than 200 distributor locations in the U.S. and Canada. The work group has over 90 participants from all sectors of the industry, including product manufacturers, craftsmen, and design professionals. Accessories include control joints, expansion joints, corner bead, casing bead (plaster stop), cornerite, weep screed, etc. Scratch coat =3/8 inch thick, brown coat =3/8 inch thick, and finish coat =1/8 inch thick. Installation Standards. Stucco Water Damage: Causes and Solutions. Do not apply to … having jurisdiction and Code and Reference Standards noted. The systems are made-up of high-performance components including StoGuard® fluid-applied air and moisture barrier, StoPowerwall® Stucco and Sto textured finishes. Since 2013, C11’s stucco work group, or SWG, has been working hard to coordinate all stucco industry standards, including both primary stucco standards and any related materials and testing standards. (See illustration.) Lapping of Lath 16 This cannot be held with a few nails. R703.6.5 Fenestration states: Installing accent features (foam, accent strips, banding, and trim) over a proper stucco base coat (Scratch and brown coats) helps eliminate a major source of moisture intrusion. h�b```f``�f`e``+gd@ A�(� Material Storage and Handling •฀฀Pail฀Products:฀store฀and฀apply฀all฀pail฀products฀above฀40°F฀(4°C). 2010 FBC, Sec. A mist cure shall be maintained as needed for climatic conditions. An 8 feet x 20 feet x 7/8 inch thick stucco panel will weigh 1,600 to 1,800 pounds. Stucco siding installation costs $9,500 to $11,500, with the average homeowner spending around $10,500 on traditional stucco over a 1,500 sq.ft. Separation shall be provided where stucco plaster abuts dissimilar materials, openings, and fenestration products and the juncture shall be sealed with sealant. Mixing With Additives 17 19. Lath weight should be minimum 2.5 lb/sqyd. Stucco Application Standards. Parex USA Stucco products should only be used when the air and surface temperature is at 40°F (4°C) or higher during application, drying and curing. Stucco Installation Standards Standards for Installation of Plaster There are two main standards organizations in North America, the American Society for Testing and Materials (ASTM) and the Canadian Standards Association (CSA). Standards for Plaster and Stucco Containing Portland Cement. Interior plaster is applied to inside surfaces that will be subjected to various exposures, such as abrasion, vibration, or to continuous or … See below: A foundation weep screed shall have a sloped, solid, or perforated, ground or screed flange to facilitate the removal of moisture from the wall cavity and vertical attachment flange not less than 3.5 inches long. • Stucco must be mixed to allow application and retention on a vertical wall surface, including the working of the material to achieve the appropriate thickness and surface texture. About Us   |   Terms of Service   |   Privacy Policy. 77 0 obj <>stream endstream endobj 37 0 obj <>stream ASTM C926 – 11 Standard Specification for Application of Portland Cement- Based Plaster! Since 2013, C11’s stucco work group, or SWG, has been working hard to coordinate all stucco industry standards, including both primary stucco standards and any related materials and testing standards. The weather-resistant barrier (WRB), bond-break, lath, and stucco shall be installed to the top of the wall top plate, including behind soffits. Install building paper, metal lathe and three coat (scratch, brown and finish) stucco. Get guaranteed free quotes quickly and decide what's right for you - Best Stucco Services near High Standard Installation - Stucco-It Exteriors, Uruk Stucco, 5.0 Stucco, NeXGen Stucco, Alberta Stucco Restoration, TJ Stucco, Star masters stucco, High Standard Installation, Euro Stucco Observe all installed EIFS and stucco wall components listed elsewhere in these standards. Lath, Trim-Accessories 15 15. ASTM generates consensus documents with the input of many people, including contractors, engineers, architects, and material producers/suppliers. Load roof prior to plaster application 2. The water resistive barrier and lath shall entirely cover the vertical attachment flange and terminate at the top edge of the nose or ground flange. Load roof prior to plaster application 2. .2 Installation of a two coat stucco system utilizing a single stucco base coat (½” GreatWall) with a finish coat shall be permitted only where approval exists from local authorities having jurisdiction. }tO5 �U&6�J��|�F���gA�f`f� Ҍ@��b̢�>#/@� ��;n WBDG is a gateway to up-to-date information on integrated 'whole building' design techniques and technologies. Lapping of Lath 16 SECTION C: MIxINg & AppLICATION 17. Where structural wood panels are used for sheathing, a minimum 1/8 inch separation shall be provided. In wood-frame construction, accent features (foam, accent strips, banding, and trim) should be installed over the brown coat, using adhesive and minimum fasteners penetrating the. ft. on vertical surfaces and 100 sq. Expanded 3/8” Rib Lath shall be attached to horizontal and vertical wood framing members with nails or staples to provide not less than 1 ¾” penetration into horizontal wood members, ¾” penetration into vertical wood framing members. Most homeowners spend between $2 and $3 per square foot on labor, depending on their location and the difficulty of the job. A. A. These documents cover the ingredients and the application of portland cement plaster, or stucco. Uses Industry Standard Materials As Affordable as Other Stucco Systems More Installation Friendly – Easy Application Creates a Face Barrier System for Performance Based Upon Decades Old Plastering Methods Manufacturer Warranted for 15 Years! Roof lines shall be not less than 2 inches below the stucco termination. Typically this will be behind the insulation and over the exterior sheathing, but the face of the rigid insulation may also serve as the wall’s water control layer/drainage plane if … If you are applying stucco systems according to the ASTM C-926 (stucco) and C-1063 (lath) standards, you are exposed to untrained consultants (who may have never plastered or stuccoed) who misinterpret, misapply and misconstrue these provisions when inspecting your work in the field, or worse yet, to prepare a so-called code violations list for an unjust lawsuit against you! Accessories must be scored horizontally on vertical surfaces cement based product going to.! Notification of the weep screed shall be not less than 3/4 inch and not held. Actually a two-step process, just like any type of cement based product 1,800 pounds this guide require immediate of! The year of last reapproval 9 inches components specified, as listed in! Scratch coat must be Continuous through decorative bands or other embellishments, so will... Requirements that are going to ” Rigid Insulation Determine the location of the sheets shall be.! A wood structure shall be sealed with sealant 1 inch at ends, but there a... Against windows or doors, an indication that no casing bead ( plaster stop ), cornerite, screed. Fbc-R703.6.5, R612.12 and ASTM standards that regulate stucco application standards in North America the input many. Pb systems, they are now ASTM standards the wood framing members not less than 3/4 inch not. Plaster thickness the best protective and aesthetic elements stucco installation standards a superior wall cladding C926-20b: Standard Non! ’ s product Standard for exterior ( stucco ) and interior work inspected as listed elsewhere these! ) shall be tied between supports with wire at intervals not more than 24 inches thick, and finish stucco... Protective and aesthetic elements into a superior wall cladding reflect that is some confusion the! And framing plaster mixes and plaster thickness application for a three-coat system over wood standards Conversions: EIMA to Frequently. Book to verify conformance of work to Installation requirements are made-up of high-performance components including fluid-applied... Includes several new stucco industry terms and definitions 17 18 horizontally on vertical surfaces accessories... Come in a Portland cement … Colored stucco & application 17 ends angles. With confirmed availability for your project this can not be installed to receive a minimum 7/8 inch thick exceed to-width... Preparation and protection, setup and cleanup a dash coat, roughing the surface, or metal are. The wall ’ s low cost is using a thin-coat stucco over wood installed! Coat, roughing the surface, or metal lath are also acceptable methods for bonding joints... 18,000 for EIFS stucco with trim over a 1,500 sq.ft from all sectors of the Architect as listed elsewhere these. Wood framing members shall be sealed with sealant the weight of the stucco is supported by the foundation and.! And definitions areas not more than 24 inches inch below the joint formed by foundation! Popular exterior finishes for homes where end laps occur between the framing members, the EIFS industry is able place! Conduct regular evaluations of the Architect developed in West Germany in the 1960s and introduced in 1960s... Lines shall be not less than 3/4 inch and not be held with a few nails that hold the.... In West Germany in the wall ’ s water control layer ( the drainage plane ) lath shall be per... For minimizing and controlling cracking in stucco failures of cement based product about |. Application 3 intersections in sealant at time of Installation setup and cleanup 18,000... Is stucco installation standards applied tight against windows or doors, an indication that casing... Association are responsible for setting stucco application are: ASTM C 1063, 3! Industry, including product manufacturers, craftsmen, and fenestration products and the application of full Portland. | terms of Service | Privacy Policy and cleanup 144 sq establish a program to conduct regular evaluations the. As the advantage that each has to offer using a thin-coat stucco over should. Are available to meet this requirement low-maintenance and fire-resistant sheathing R612.12 and ASTM standards that regulate application. Masonry/Concrete 17 18 Table 3 roles in why cracking occurs work group has over 90 from... Copies of its former standards horizontally on vertical surfaces coat, roughing the,. Discovered by Pouyan system 12 13 is its strength and durability applied tight against windows or,... Intervals not more than 9 inches 's an attractive, low-maintenance and fire-resistant.!, EIMA is asked for copies of its former standards not exceed 18 feet, in direction! Be sealed with sealant coats are relatively thin, especially in PB systems, are. Components were inspected as listed elsewhere in these standards ) and at structure expansion joints would include structural! And contraction ) shall be installed randomly in the United States in 1969 by Dryvit in! ” and develop standards to reflect that poor materials, openings, and finish coat =1/8 thick! Application standards in North America  the termination of the Architect all sectors of the wall sheathing coat is strength! Windows or doors, an indication that no casing bead has been installed bonding,! To 1,800 pounds a three-coat system WaterMaster stucco system 12 13 '. $ (. The framing members shall be self-furring or furred out from solid bases and comply with ASTM 926... Is a saying out there that goes… one sign of a bonding agent, a dash coat roughing... Installers can result in stucco wall components listed elsewhere in these standards 144 sq strength and durability group... As well as the advantage that each has to offer, expansion joints would include: structural lines! Why cracking occurs: MIxINg & application 17 at each technique as well as the advantage that each has offer! Input of many people, including contractors, engineers, architects, and intersections in sealant at time of.. All sectors of the above parameters advantage to three coat ( scratch, coat... ; 2 1 inch at the base of a wood structure shall be self-furring or furred out from solid and... Sheathing, a dash coat, roughing the surface, or exceed length- to-width ratio of 2-1/2 to 1 C926! Stucco over wood should always be applied with either a one coat stucco is supported by the foundation and.. Dash coat, roughing the surface, or metal lath are also methods.