Each astm stucco standard is organized internally into sections describ. Exterior insulation finish system eifs not determined this home is clad with a synthetic stucco system known as exterior insulating finish system. Since the late 1960s, when eifs was first introduced in the united states as a cladding material on commercial buildings and homes, it has commonly been used as a replacement to traditional stucco. It protects the insulation and underlying pipevessel from physical damage, uv exposure, corrosive atmospheres, and water. Simply click on the desired file and you will be prompted by your browser for file saving instructions. Stucco and eifs are common cladding systems that appear similar from the exterior. Permabase cement board stucco systems combine the strength and durability of cement board, and the protection of durable coatings without the complicated installation, labor steps and moisture exposure of traditional stucco. Designer choices and responsibilities in astm c1063 and astm. For more than 40 years, weve been a trusted, gotoresource for durable, codecompliant wall systems. Stucco can be applied in coats some coats are called base, scratch, brown and finish. Total wall wall systems represent the cutting edge of cladding design and integrity. All of stos hurricane systems meet the stringent miamidade county. A rainscreen drainage plane drainage mat creates a separation between the backside of the cladding stucco, manmade stone, siding, etc.
Stucco institute this document is to be used by a sealed cladding technician. These systems offer good to great performance in a ready to go specification package. The american experience with exterior insulation and. Diamond wall one coat stucco is a code compliant plaster system that creates a longlasting exterior cladding for residential and commercial projects. A variety of systems can be used for exterior wall construction or. The focus of this paper is on those defects noted in buildings with exterior stucco clad ding applied to metal lath. Considerations in the design of cladding systems with. The stucco and exterior finish cladding systems course is a 1. For some exterior wall applications, lath, mesh or netting is installed with the stucco.
Stucco has excellent fire resistance, however it remains a cladding system that has experienced issues with water infiltration and corresponding construction defects. Cladding attachment over thick exterior rigid insulation screw bending double bending resistance was significantly higher 4 times than simple cantilever. The first method which is often used with wood siding, cementitious stucco, and brick veneer functions. Eifs stucco is a type of stucco wall cladding that looks like a typical stucco installation on the outside, commonly having an acrylic type of finish but is different than a hard coat stucco system when you dissect the inner layers. How cladding systems accommodate building movement 4. To the untrained and sometimes trained eye, exterior insulation and finish system eifs and stucco often appear as one and the same. The stucco cladding for this home is in need of a complete evaluation by a licensed general contractor or qualified eifs inspector. Sep 09, 2014 stucco is a very traditional cladding system incorporating a sandcement plaster applied over metal lath reinforcing on rigid or nonrigid backing material. Short flange casing used to terminate the top, expanded flange at bottom. These systems have very different attributes however. Barrier eifs is a nonload bearing cladding system consisting of 1 insulation board adhered or mechanically fastened to a substrate such as plywood or osb board, 2 glass fiber reinforc. Exterior structural cad detail library awci technology. Effect of cladding systems on moisture performance of wood.
Listed below are links to omega products standard details for the akroflex eif systems, diamond one coat stucco systems, and three coat stucco systems. Exterior insulation and finish systems eifs are a relatively new cladding system that combine a finish with a layer of exterior insulation. Parex usa installation guidelines are for general information and guidance only and parex usa specifically disclaims all liability for the use of this design, for design engineering, and for workmanship of any project. No weep screed, no leaks, no cracks, no flaws, no faults note lower portion has a stuccoed return without any weeping mechanism. Founded in 1981, the eifs industry members association eima is a national nonprofit technical trade association comprised of leading suppliers, manufacturers, distributors, contractors, architects, related products manufacturers and suppliers, and other interested parties involved in the exterior insulation and finish systems eifs industry. It is important to note that no stucco cladding system standard for test method currently exists, although one is currently in development for evaluating the bond strength of stucco cladding. Stucco manufacturers association sma is comprised of the major manufacturers of stucco in north america and their related suppliers. With the cladding off, the exterior sheathing and water control layer should be evaluated for damage before to proceeding.
For unlimited design possibilities in a tough, durable, and beautiful exterior cladding, use traditional portland cement plaster. For use of homerab precladding substrate sheet outside. Exterior cladding components and best practices exterior. The investiga tions have been performed for a variety of reasons, including resolving issues noted. Effect of cladding systems on moisture performance of woodframed walls in a mixedhumid climate author. Specific emphasis is on the integration of continuous insulation with a mutlitude of exterior finish materials on coldformed steel framing. You should understand the basic components of the most common stucco systems. The design specifications and construction of the wall shall comply with all building codes and standards. If a particular cladding is selected, therefore, the type of wall systems and support structure best suited to the functional requirements of the building are at hand chudley and greeno, 2006. Portland cement stucco can be applied to any flat or curved surface either inside or outside. Light weight and will not stress the design of the structure. Best practices and quality issues in residential stucco application drainage plane and bond break apply drainage plane integrated with penetration and opening flashings for one coat systems the paper is the drainage plane behind the foam for two coat systems the first layer of paper is the drainage plane, the second layer is a.
This field developed system has served as a successful cladding system for over 40 years. The total system is either two or three coats, and it is finished with a weathertight applied exterior acrylic coating system. Nfpa 285 is used to show compliance with current 2012 international building code ibc section 2603. System overview description platinum ci stucco is a continuously insulated stucco system featuring neopor advanced insulation technology. Stopowerwall stucco systems designing the evolution of stucco. Noninsulated masonry veneer systems are exterior cladding systems that feature maxgrip veneer mortar, a highstrength, specially formulated setting bed mortar used to adhere natural and manufactured stone, ceramic tile, and thin brick veneer. Use it in stotherm ci systems or as fortification layer over existing eifs. For example, applying a synthetic stucco product over an existing exterior cladding system would not constitute a traditional eifs arrangement. This digest explains the reasons why facesealed eifs are fundamentally flawed as cladding systems for most applications, and describes how drained eifs can be used successfully in almost all climate zones and exposures. Thermal infrared image of two different cladding attachment systems. Aluminum is about weight of iron or steel, making it easier to handle and less expensive to ship. Exterior insulated finish eifs and stucco wall cladding. Recommended for stone veneer, stucco, fiber cement, and composite siding fabric serves as sacrificial layer in stone or stucco applications, while preventing mortar from blocking drainage and drying channels additional fabric layer protects matrix from uv exposure and adds compression resistance.
In metal lath supported systems, the stucco encapsu lates a metal lath, which is attached to the building structure. Stopowerwall stucco systems are advanced integrated wall systems that combine the best protective and aesthetic elements into a superior wall cladding. The second method which includes many eifs, curtain walls, and other specialized systems strives to prevent. Stucco detailing for buildings with unique geometry iibec. Modern stucco walls repel more water, but moisture that does infiltrate cant dry out. The systems are madeup of highperformance components including stoguard fluidapplied air and moisture barrier, sto drainscreen drainage mat, stopowerwall stucco and sto textured. Exterior cladding components and best practices fema. These details are drawn to scale and use general architect standards. Sto impact is a fortification layer that improves the impact resistance of the cladding assembly from both blunt impact and from repetitive and concentrated impacts e. Transitioning from threecoat stucco to onecoat stucco with eps has been developed to help builders transition from using a traditional threecoat stucco wall cladding system to a onecoat stucco wall cladding system with expanded polystyrene insulation. Stucco is arguably low maintenance and adaptable to both classical and modern architectural styles. To retrofit a wall system with stucco over rigid foam insulation, the existing stucco cladding must first be removed.
Stucco pattern can reduce sunshine reflect and hide small scratches. As popular building materials, eifs and stucco seem aesthetically similar, and many believe they have the same basic. Aug 20, 2015 many homes and commercial buildings are constructed with exterior insulated finish eifs and stucco wall cladding systems. It combines the strength and durability of traditional stucco with stoguard moisture protection and sto high performance finishes for commercial and residential applications. Eifs is a nonbearing exterior cladding consisting of a layer of. Thats where a rainscreen system with a drainage mat and good weep screed come in. The placement tolerances of primary structure materials and the need for girt space by address of these issues, the author hopes to reestablish the fundamentals needed in any good cladding design and spur development in areas where the present design is lacking. This is exactly what you get with the base 5 system. Sto hurricane impact hi systems provide a full range of exterior cladding options to protect against hurricane and tropical storm winds, water intrusion, and windborne debris which is a leading cause of building envelope failure. Stucco manufacturers association periodically publishes guide specifications for the plastering and building industry. Today, they are some of the most tested and wellresearched cladding materials in the construction industry. The sealed cladding system was developed to provide a serviceable exterior cladding system for both residential and light commercial construction applications. Learn more about best practice detailing for stucco walls. Many homes and commercial buildings are constructed with exterior insulated finish eifs and stucco wall cladding systems.
Vinyl siding installation manual, published by the vinyl siding. The system gives you the stucco look your customers appreciate, in a faster application. Like vertical or horizontal zgirts, crossing zgirts are not a very thermally efficient attachment system and not typically recommended due to the excessive amount. Cladding attachment systems can reduce exterior insulation performance by as much as 80% for lowperformance systems and as little as 210% for highperformance systems. Strategies and cladding attachment peter baker november 16, 2017 exterior insulation and cladding attachment.
It is different than the astm c926 and c1063 in that it is. The durock puccs series of exterior insulation finish systems is the ultimate in insulated. Cladding systems are attached directly to the outer flange of the exterior girts. Stucco institute this document is to be used by a sealed. Effect of cladding systems on moisture performance of woodframed walls. Exterior insulated finish eifs and stucco wall cladding systems.
The use of eifs in residential construction was first introduced to the usa in 1969 by dryvit who brought the technology here from germany. Rainscreen systems with a wide variety of veneers are sustainable when combined with the right rainscreen moisture management system. The following details can be downloaded directly from lahabra stucco in autocad. If youre looking for a quality simplified stucco look no further than our base 5, mid 7 and deluxe 10 systems. Cladding attachment over thick exterior rigid insulation. Other exterior wall finishesstucco, exterior insulation and finish systems. Mitigation of these failed stucco cladding assemblies can be extensive and costly. Jm aluminum jacketing also called cladding is available in smooth, stucco embossed, and 316 corrugated crosscrimped finishes. Discover how mti products can solve your rainscreen system drainage problems. Refer to james hardie rigid air barriers installation manual for. Nonbearing exterior cladding used to weatherproof, beautify and insulate any commercial or residential structure with moisture sensitive sheathing or framing. The masonry veneer is made from a mixture of portland cement and. One coat stucco has the appearance and advantages of traditional three coat stucco, including onehour fireresistiverated assemblies, but with reduced labor costs and schedule savings. Provides an effective means for water to escape from the system and protects sheating and framing from moisutre damage.
The purpose of the course is to provide essential information on material properties, design principles, evaluation techniques, and repair methods for stucco and eifs. Nfpa 285 compliant wall systems and assemblies the components listed in the following sections base wall system section a, airwaterresistive barrier section b, exterior insulation section c, and exterior cladding section d can be combined to create wall systems and assemblies that comply with nfpa 285 requirements. Stucco cement board coatings, finishes over stucco, interior finish systems and insulated concrete form finishes. Vinyl corp 34 eflange casing beads was attached along the perimeter. As indicated previously, the differences may be associ. The systems are madeup of highperformance components including stoguard fluidapplied air and moisture barrier, sto drainscreen drainage mat, stopowerwall stucco and sto textured finishes. Stucco is a very traditional cladding system incorporating a sandcement plaster applied over metal lath reinforcing on rigid or nonrigid backing material.
For more than 40 years, weve been a trusted, gotoresource for durable, codecompliant wall systems and building materials. Stostucco construction system soffit to cladding detail. Exterior insulated and finish system eifs and hard coat stucco. Unlike the ordinary stucco system, the eifs also known as synthetic stucco is a lightweight synthetic wall cladding that includes foam plastic insulation and thin synthetic coatings. The following wall coverings are commonly used over woodframe and masonry construction. This digest explains the reasons why facesealed eifs are fundamentally flawed as cladding systems for most applications, and describes how. This includes board and lap cladding that is installed using standard nailscrew fasteners, stucco adhered veneers, stone veneers, and a wide range of metal, glass, and composite cladding systems each with unique support conditions. Eifs because it was designed to keep water from penetrating the synthetic stucco cladding. The finish is comprised of polymeric organic bonded aggregate and cement reinforced with a glass mesh. Stucco over rigid foam insulation building america. How to choose between stucco and eifs architizer journal. Stopowerwall next drainscreen is an advanced, integrated system that combines the best protective and aesthetic elements into a superior wall cladding.
Over the past 15 years, the authors have investigated defects in exterior portland cement plaster stucco cladding on hundreds of buildings throughout the southeastern united states. In facade design, the use of any alternatives of cladding determines the type of wall system and vice versa smith, 1988. The modernwash cladding systems are a group of various materials that are panelized to install in either connection tongue and groove fastening or within a reveal system that is clean and hides all the connection points. Silvergray neopor is the latest innovation in insulation from basf that exceeds astm c578 type i and type ii requirements. Thermal performance of the exterior envelopes of whole buildings xi international conference,\r december 59, 2010, clearwater beach, florida keywords. Stopowerwall is a stucco wall assembly with continuous air and moisture barrier and moisture drainage. This section also includes our finishbased applications. Double bending is more in line with the expected performance of the assemblies but still only accounted for a fraction of the total measured system capacity. Basfs senergy wall systems is a leading manufacturer of eifs, stucco, air and waterresistive barriers and specialty finishes for the construction industry in north america. Eifs, stone cladding, and insulated metal panel wallsare discussed in the. Portland cement plaster provides an ideal finish or cladding for any building construction system including concrete, concrete masonry, brick masonry, wood frame, or steel frame.
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