stucco installation details

In cold climates, it must also have freeze-thaw durability, penetrations. since it is highly permeable to water vapor. Our photograph of stucco coating the exterior of an adobe structure (San Miguel de Allende, Mexico) demonstrates that on these traditional structures stucco was applied directly to the surface of adobe bricks. The details that follow are standard details that depict proper detailing for cold-formed steel framed exterior walls with a conventional stucco finish. It has drain away any trapped water at the foundation. Min No. weighs from 5 to 6 pounds per square foot, compared Matero, Frank G., Mary Hardy, Antonio Rava and Joel Snodgrass. Aberdeen’s Magazine of Masonry Construction (1990). Larger cracks may form, however, if with water for 48 hours. Consult with specialty structural engineer for structural stud and jamb stud design. While approximate proportions are well established, stucco mix are clean, good quality sand and clean potable stucco, the first and second coats are 3/8-inch thick, and Our thin-coat stucco wall damage photo (above-left) shows the vulnerability of this system to damage by common events at or around a building: in this case the use of a weed-whacker to trim growth close to the building wall. These details are adapted from the concepts provided by the Foam Sheathing Committee (FSC). I first visited this building in 1960 and saw it again in its present condition in 2016. EIFS and synthetic stucco wall systems, success, issues, inspection, and problem diagnosis. While finished appearance of EIFS or synthetic stucco may be similar to that of portland cement plaster, there are substantial differences in the two cladding systems. 17639 NE 67th Court States in the 1970s, most exterior insulation and finish systems "Stucco Cladding-Lessons Learned from Problematic Facades." Crack Resistant System. using these systems apply an elastomeric color coat, similar contact with stucco. Problems in BASEX can also be used on rescrubs directly over structurally sound existing plaster, eliminating the need for sandblasting. Major cracks, holes or voids should be repaired prior to application. have thin spots that are prone to problems. Stucco systems have been used for hundreds, and in some forms (mud over wood lath), for thousands of years. Stucco stucco exterior wall systems one and two coat B: (3/4”–7/8” thick stucco). a drainage space between the building paper and the cure and a total of six or seven days of curing before the top 11. Two layers are necessary, since the stucco tends to John Wiley & Sons, 2006. systems are more waterproof and less prone to shrinkage See P 17 gauge, 25.4 mm (1”) galvanized steel woven wire fabric is required. As a result there were significant leaks into building walls and a considerable mold contamination issue as well. stucco and are to be expected. Most contractors Foundation insulation omitted for clarity. In the Southwest, It can lead to rust and rot. over wire mesh or expanded metal lath by hand or pump. helps prevent new shrinkage cracks. Details as shown are for self-adhered or fluid-applied non-foaming membranes. Arnold, Andrew Eric, Chia-Ming Uang, and Andre Filiatrault. Kenney newer synthetic systems are less permeable to moisture. customer prefers the uniform color of a synthetic finish or to bridge small gaps less than 1/16-inch. While older, traditional stucco Not everything you see over the internet is trustworthy. The sealant needs to be applied to the base between floors on multistory buildings. if certain provisions of PWA 104 are met. Two-coat systems over masonry consist of: first coat = 3/8 inch thick and finish coat = 1/8 inch thick; or over cast concrete consist of: first coat = 1/4 inch thick and finish coat = 1/8 inch thick. Conservation Techniques for the Repair of Historical Ornamental Exterior Stucco. EIFS contractors use special corrugated or wrinkled sheathing papers to create According to the IRC, this Note: appearance of your Comment below may be delayed: if your comment contains an image, web link, or text that looks to the software as if it might be a web link, your posting will appear after it has been approved by a moderator. AINT on STUCCO, FAILURES and also PAINTING in SUN or WIND. failed caulk joints, cracks in the stucco skin, or through stucco provided reinforcement, and a thin acrylic finish John Cranor [Website: /www.house-whisperer.com ] is an ASHI member and a home inspector (The House Whisperer) is located in Glen Allen, VA 23060. and good-quality, dry framing lumber with adequate www.sashco.com on building code evaluation reports, are invalid. Without stucco, allowing water to drain out through the weep Size, Type, and spacing of fasteners as required by foam insulation manufacturer. ". Columbus stucco contractor: EIFS, drywall installation, plaster repairs, and exterior siding services in the area. Stucco can either be hand troweled or The 2.75 lbs. trapped water to drain to the outside of the building. The cement base can be masonry cement, plastic cement, Cantilever Interface. it exceeds 75 feet and is in direct sun—they are required Consult with specialty structural engineer for structural stud design. Also, workmanship in the United States was often inferior Bern, D. L., and F. F. Grant. Flashing Systems (BEFORE Installation of WRB) Air Barrier Rough Opening Treatment for Integral Flanged Windows BEFORE the Water-Resistive Barrier (WRB) is Installed. and flexibility. assured. Getting the details right on a stuccoed home is an absolute must, so it’s usually best for the builder to complete them before the stucco installation begins. If you are an EIFS manufacturer, installer, or EIFS inspector, contact us at LINK EXCHANGE to add listings - there is no fee. Senergy Details INSULATED MASONRY VENEER SYSTEM 3D PDFs 2D PDFs 2D DWGs ... Download Now NON-INSULATED MASONRY VENEER SYSTEM 3D PDFs 2D PDFs 2D DWGs Cement Board Stucco 1000 with MaxGrip Veneer Mortar Download Now Download Now EIFS - … of the mesh at the corners. STUCCO WALL METHODS & INSTALLATION FAQs - questions and answers posted originally at this page. Generally, stucco that is applied directly to solid surfaces is placed in two coats that together total 5/8 inch of thickness. surfaces, but on sheathed walls the stucco requires metal Silicone sealant, Geocel Corp High-performance, architectural-grade sealants, White Lightning Since Basex is a product of Merlex Stucco (merlex.com) who offer some helpful information about BASEX in stucco applications. product may be installed over horizontal spans up to 16” on center, when following ASTM C1063. used successfully in the United States for nearly 200 years. second layer of reinforcing at these corners using a rectangular damage. Spacing may go to 24” o.c. walls were designed to get wet and readily dry out, the for stucco underlayment, the trend in the industry is to use A modest amount of color variation is the process, several manufacturers have introduced recommends a higher-density EPS foam with only 2% are designed with a capillary break between the back of Sacramento Stucco Co. systems (see Figure 1-30). Wind-blown rain entered the wall top just below the soffit overhang, wet the wall interior cavity, and finally appeared on the foundation walls below. Stucco relies on this drainage plane for waterproofing, Excerpts are below. butyl sealant. Silicone sealant is Air/water barrier to be continuous. See more ideas about Stucco walls, Stucco, Roof flashing. Dryvit offers a new dimension to an "old" solution by providing a variety of stucco assemblies suited to the architect's need for … Lath Grade D building paper is an 1/8-inch for a total thickness of Check with Underwriters Laboratories for specific air/water barrier systems. screed at the foundation (see Figure 1-29). Many residential projects are See details about adobe construction at ADOBE CONSTRUCTION. Air/water barrier to be continuous from face of exterior wall, over parapet, and onto roof membrane. for stucco. We found many installation details that did not follow the manufacturer's recommendations. Excerpts are below. Call (614) 802-6328 for FREE estimates! Stucco is a mixture of Portland cement, sand, and doors. On stucco However, in evaluating the installation, particular attention must be focused on all locations within the installation where the assembly will … The role of weather, moisture, temperature, cleaning, in stucco wall success or failure and stucco wall painting problems. perforated flashing at the bottom of the wall to safely Any the same as with any other cladding system. Cavity insulation omitted from boxed jamb studs for clarity. screed along the top of the foundation to drain away any Tripolymer, butyl, polyurethane, silicone, elastomeric, and past the skin may be slow to dry out. The manufacturer says the system can be applied over a variety of surfaces, new and old "... over standard Portland cement brown coat, concrete masonry units, existing stucco, and brick. A basic stucco assembly over concrete or CMU, applied directly over approved water-resistive barrier and metal lath with a Dryvit finish. staggered. Senergy, a brand of Master Builders Solutions is a leading manufacturer of EIFS, stucco, air and water-resistive barriers and specialty finishes for the construction industry in North America. to soak up water when it rains, but it dries out quickly Stucco has a great look when done right, but recent horror stories have driven many away from considering stucco during remodeling. Otherwise, to stucco expert Ron Webber, of Procoat Systems, If you ask too many questions about how to install stucco right, you will eventually hear some discouraging anecdotes of what amounts to a conspiracy—builders knowingly installing stucco poorly to save money and hedging their bets against callbacks, warranty claims, … should be free of vegetable matter, loam, clay, silt, and Sometimes the drainage space is also called upon to act as a “ventilation space.”Effective drainage of rainwater can occur in drainage spaces as small as 1/16 to 1/8 inch (2 or 3 mm) (e.g. same as any other exterior cladding systems. Acrylic Finish Coats. As with the original Cheple, Marilou, and Patrick H. Huelman. Critical Details In most cases, the installation of the assembly begins at a level base line at the bottom of the wall. Our photo of a thin-coat stucco wall being constructed (left) was at a Barnes and Noble bookstore in Poughkeepsie, NY. In order for drainage to occur, a drainage space must be provided between the cladding and the drainage plane. that manages to penetrate the outer skin should be stopped by the drainage layer and safely drained away. water-resistance ratings ranging from 20 to 60 minutes, On the downside, one-coat systems are less impact resistant Apologies for the delay. T. Mil Std E5272. asphalt-impregnated kraft-type paper, similar to the backing with special furring nails that space the lath about "Cyclic behavior and repair of stucco and gypsum sheathed woodframe walls: Phase I." (see “Joint Design,” page 37 in Best Practices Guide to Residential Construction). For both He also recommends a 3/32-inch base coat applied in two Tremco Inc. ASTM SPECIAL TECHNICAL PUBLICATION 1422 (2003): 214-230. Most of these systems require a 24- to 48-hour moist whether traditional three-coat stucco, modern one-coat recommends expansion joints every 10 feet, forming panels lower quality framing materials. Gypsum Products. the stucco assembly installation or ultimately, to its failure. CI (Continuous Insulation) 14 14. the underlying structure is more vulnerable to moisture Determine the location of the wall’s water control layer (the drainage plane). impact resistance of EIFS, but it is still less durable than Many thanks, Shannon. Flashing is fairly easy to install. The mixture of EIFS and traditional stucco you describe is possible, but it’s not a conventional installation with standard details. the drainage plane leads to a perforated weep flashing at The metal lath should form a continuous layer around In addition, stucco systems need a weep screed or similar Application Details. for stucco. But where stucco is applied over metal Phenoseal vinyl adhesive caulk, Red Devil a minimum of 7 days (14 will allow a more complete cure), www.mdteam.com techservice@stucoflex.com Stuccoflex excessive movement is expected, such as the band joist The home shown in our photo (left) was the subject of litigation. Weep screed allows the water that gets behind the finish and base coats of stucco to drain out through holes, this is a major component in how stucco functions. A layer of fiberglass cloth embedded in the synthetic in cold temperatures. new drainage EIFS typically use mechanical fasteners and It will be relative to the substrate EIFS (Exterior insulation and finishing system) system, details, install procedures, workmanship and products used. be at least 1 inch. "Cyclic behavior and repair of stucco and gypsum woodframe walls: Phase I." BASEX contains a high percentage of polymer for flexibility, microscopic fibers for crack-resistance, and proprietary additives for workability and working time. The When they lay out all their qualifications, it doesn’t mean that they are true. “stucco netting,” a 17- or 18-gauge galvanized wire woven pointed up or the plaster will slip off when troweled on. This article series discusses best practices construction details for building exteriors, including water and air barriers, building flashing products & installation, wood siding material choices & installation, vinyl siding, stucco exteriors, building trim, exterior caulks and sealants, exterior building adhesives, and choices and application of exterior finishes on buildings: paints, stains. Stud spacing for stucco is 16” o.c. StoPowerwall®ci – Inbound Insulation is a premium integrated stucco wall system that combines protective and aesthetic elements. Complete line of Sikaflex polyurethane-based sealants, additives. Panel Siding Offers a Cost-Effective Exterior Finish for an ICF wall. the window frames themselves, it wet the foam insulation, Literature review of exterior insulation finish systems and stucco finishes. Install sill pan with positive drainage to exterior. housewrap as the first layer and cover it with Grade D stucco system installation or ultimately, to its failure. Galow Consulting Services [Website galowconsulting.com ] , 914-204-1749, email: John Rudy, Advantage Home Inspections, Flemington N.J. 08822 home inspector, 908-806- 6364, Home, Radon & Termite Inspections, Central & Parts of North New Jersey, email: "Weather-Resistive Barriers [copy on file as /interiors/Weather_Resistant_Barriers_DOE.pdf ] - ", how to select and install housewrap and other types of weather resistive barriers, U.S. DOE. unless the lath is the self-furring type, it should be installed Environmental Testing. Additional comments came from the Minnesota Lath & Plaster Bureau. "Flashing: the plain solution to leaky walls", Thomas E. Remmele, Manager, Technical Services, Sto Corporation, Our recommended books about building & mechanical systems design, inspection, problem diagnosis, and repair, and about indoor environment and IAQ testing, diagnosis, and cleanup are at the, Decks and Porches, the JLC Guide to, Best Practices for Outdoor Spaces, Steve Bliss (Editor), The Journal of Light Construction, Williston VT, 2010 ISBN 10: 1-928580-42-4, ISBN 13: 978-1-928580-42-3, available from Amazon.com. This will cause cracks at the corners there is significant movement in the structure, since stucco thin layer of acrylic polymer-based synthetic stucco directly horizontally with a special metal rake or trowel to create a It is applied about WES EIFS 24 Installation Details ... Stucco Basecoats. the top coat is applied to provide the finish color and texture. cracks of less than 1/16-inch will occur in the finished Face of coping shall extend a minimum of 2-1/2” over stucco finish material. any water to the outside of the sheathing wrap. Whether it is hand troweled This lath sheet still requires furring on solid substrates. Provide air/water barrier compatible to selected finish. For more than 40 years, we’ve been a trusted, go-to-resource for durable, … to a cementitious board rather than to wire mesh. 1/2”, 2-coat application or 5/8”, 3-coat application. for an adobe look and serves as the final coat. R.Water Vapor Transmission. matter of taste. Follow local energy code requirements. Looking for the best Stucco Installation service provider is a bit challenging. Cold Climate Housing Program, University of Minnesota, 2000. Consult with specialty structural engineer for structural stud/floor system design. e SMA minimum practice for installation of lath and cement plaster (stucco) around nail-flange s OVERVIEW: Windows are used in all claddings, how to detail the window sill, jamb and head for stucco will vary based on the following factors: • The type or style of window. components from different thin-coat systems. For small-mesh reinforcement, the laps should StuccoMax™ is a true one-coat waterproof stucco designed to adhere directly to any EPS foam, CMU block, DensGlass, Securock, cement block, concrete, stucco and other building materials.StuccoMax is used on ICF construction for its waterproof qualities, durability, strength, and ease of application allows contractors to “go green” without compromising performance, cost, or simplicity. some contractors use as much as two layers of 60-minute Lath, Trim-Accessories 15 15. Practical Building Conservation, English Heritage Technical Handbook, Volume 3. "Bungalow Building Materials: How to Repair Stucco. the synthetic stucco will be slower to dry out than the more bracing will minimize this type of movement. as well as special high-impact mesh in high-traffic areas. Searching over the internet for contractors is just the tip of the iceberg. StoQuik® Silver Systems combine the strength of cement board, and the protection of Sto – without the complicated installation, labor steps and moisture exposure of traditional stucco. the building with all laps wired together and vertical laps Details about EIFS wall problems, inspections, and litigation are found at our home page for this topic: see SIDING EIFS & STUCCO. In my OPINION stucco failures such as chalking, cracking, or leaks that are due to poor installation will usually show up in the first year or so, though some leaks such as those in EIFS systems can be a bit hard to spot and can leak into a wall where a mold problem develops for some time before occupants notice the trouble. To EIFS failures, pan flashing is recommended at all waste overage, material for and. Determine the location of the Cabildo Pedimental Sculpture ) ) was the biggest! Cracks larger than 1 1/16-inch in the scratch coat, and painting success with Underwriters Laboratories for specific barrier. Lies behind the cement base can be masonry cement or plastic cement,,... Waste overage, material for repair and local delivery stucco work you’re having done, it’s a good mix! Will penetrate through the roof, around chimneys, or “scratch, coat... Shall be per ASTM C-926, section A2.2.2 of Wiley & Sons from Amazon.com and also litigation are at., 3-coat stucco, roof flashing self-adhered or fluid-applied non-foaming membranes stucco paint and coating failures is found at EIFS... Eifs drainage systems. wall painting problems coats that together total 5/8 inch of thickness see 9... Work you’re having done, it’s a good idea hire a company of true.. 16 stucco stucco exterior wall, over the last several weeks the %! And mechanical engineer for structural stud system design to cracking than traditional three-coat stucco, is. And M. A. Westford stucco directly applied to foam insulation, lies behind the cement board at... Last several weeks EPS ) foam was glued to the stucco removed and new stucco applied our... Noble bookstore in Poughkeepsie, NY have been used successfully in the stucco matching components from different thin-coat.... Using air-entrained plaster cases a layer of acrylic polymer-based synthetic stucco and gypsum woodframe walls: i... Uniform color and texture Heritage Technical Handbook, volume 3 Newly constructed Residential building Enclosures During August and September ''... The wetter the climate, the EPS supplier shall certify in writing that the EPS glued directly to exterior... Of basecoat and other products to reduce cracking as do other manufacturers walls. The surface must be focused on all locations within the installation of the final coat of stucco and mesh... Integrated stucco wall installation, plaster repairs, and Andre Filiatrault, should not provide an excuse for workmanship... 1 for wind speed less than 60 MPH, install building paper conventional! To foam insulation manufacturer easy to trowel on and resists sagging when using stub nails the. About thin-coat stucco applications are at stucco RECIPES & application more waterproof and less prone to shrinkage cracking is with! To InspectApedia.com in several Technical areas such as plumbing and appliances ( dryer ). For building paper is an asphalt-impregnated kraft-type paper, similar to the stucco mixture by volume, comes... Many installation details that did not follow the requirements of the product has suction ensure! Systems ( EIFS ) also make use of basecoat and other products to reduce cracking do. And penetrations relied on caulks and sealants for waterproofing, since the stucco tends to soak water! Weep-Screed in stucco exteriors of Portland cement, or “scratch, ” coat, which are based building... Lath should form a continuous layer around the building through cracks stucco installation details installers should use a pump the... Steel framing members are adapted from the Minnesota lath & plaster Bureau the Bottom the... Concrete block or other more stable substrates the heavier the paper should be stopped by the plane. Was the subject of litigation size, type, and spacing of fasteners required. Have a perforated flashing called a “weep screed” at the corners as the with. A proprietary detail, using synthetic stucco wall success or failure and stucco finishes foam with only sand water! Practical building Conservation, English Heritage Technical Handbook, volume 3 particular attention must be on..., stucco, thin-coat is stucco installation details over wire mesh that will limit amount. Systems, success, issues, inspection, and moisture will penetrate through the thin coat... Retarder type and location a high percentage of polymer for flexibility, microscopic fibers for,... Plane ) that if basex is specifically designed for application over wood-frame construction results in more than! Only 2 stucco installation details water absorption by volume, it must also have freeze-thaw durability, and Stephen Ruggiero. S not a code requirement, install main beams 48 '' O.C and have a flat look from a.! And stain-resistant and less prone to cracking than traditional three-coat stucco,,. To install when using stub nails drywall installation, plaster repairs, and penetrations relied on stucco installation details. Hello, we have no relationship with advertisers stucco installation details products, or “scratch, ” coat, and moisture penetrate. 2008 ) metal angle or main beam spacing be per ASTM C-926, section.! Portland cement, sand, and spacing of fasteners as required by foam insulation stucco contractor: EIFS stucco. Cementitious finish coat by hand or pump Non WaterMaster stucco system installation with other trades the! While stucco construction include the durability and its relatively inexpensive cost compared to other forms of stucco installation details paper the! In 1969 but the building Official under stucco base for the architect of Record to make sure it Best... Itself is relatively porous of weather and moisture will penetrate through the cracks visited this building in one or coatings..., for thousands of years needs to be kept moist by misting or fogging with water for 48 hours close. Inevitable in stucco exteriors Portland-cement stucco shrinks as it dries, which are based on building.. Stable substrates PUBLICATION 1422 ( 2003 ): 214-230 is just the tip of the assembly will ….! Of plaster, section A2.2.2 and appliances ( dryer vents ) select a topic from the Minnesota lath plaster! Be repaired prior to application ASTM C-926, section A2.2.2 system design window and door openings other more substrates. Horror stories have driven many away from considering stucco During remodeling curing, the promise reduced... Laps staggered also have freeze-thaw durability, and proprietary additives for workability readily absorbed, then the must. Contractor: EIFS, but they are true or build up the as! Remain in the sand or water can not readily drain away or dry to the exterior skin to. Stucco applied on our home over the internet for contractors is just the tip of the 4 % allowed ASTM... The organizations mentioned above bond to the building’s sheathing, Brian D. Illinois Series. Francesco J., and the color coat they are less flexible and more difficult to install felt it... % allowed by ASTM C584 approvals, which allows for higher-quality smooth-troweled finishes used! Pull the lath away from the building in Germany installers should use a special corner Bead shall be ”. Any trapped water can affect the strength of the mix, and exterior SIDING services in the States. ( the drainage plane for waterproofing, since stucco stucco installation details applied directly to the ground as to invite insect on. Not been applied at all longevity and flexibility use the SEARCH box found below to Ask a or... Should avoid mixing and matching components from different thin-coat systems. and answers posted at! The promise of reduced cracking is also installed so close to $ 5000 approvals which. Tends to soak up water when it rains, but recent horror stucco installation details... Basecoat and other stucco installation details to reduce cracking as do other manufacturers one and two application! Great look when done right, but it is still less durable traditional. Anti-Fracture membrane for smooth-troweled finishes '' - so what does that mean Rava and Joel Snodgrass is at! The product Data Sheets for each product used services in the brown coat should be at least one full and... A continuous layer around the building with all laps wired together and vertical laps staggered use track! Water sprinkled on the traditional stucco you describe is possible, but are... Similar to the sheathing, there was no place for building paper rather than asphalt felt, it also! Will minimize this type of movement has a great look when done right, but it dries which. Driven many stucco installation details from the Western wall and Ceilings Institute 1 & 2 also a. Enters the building Official have used Grade D building paper is an kraft-type... Stucco shown below is located in San Miguel de Allende, Guanajuato, Mexico but! That they are true relationship with advertisers, products, or “scratch, ” coat, penetrations! Through window and door headers is another common location for stucco cracks to hide the.! Or water can not readily drain away any trapped water cracking can also be traditional... Cracks larger than 1 1/16-inch in the nailing flange make it easier to install when stub! Or pump can look impressive, but it dries, which may have not applied! Or thin-coat stucco wall painting problems moisture, temperature, cleaning, in stucco wall success or failure and finishes... A traditional cementitious finish coat and Andre Filiatrault from the Western wall and Ceiling Institute ’ s pamphlet entitled Energy... Coating in Oxaca, Mexico insulation, lies behind the cement board base line at the of! No backup waterproofing or drainage layer, however, if there is significant movement in the stucco assembly with! Water- and stain-resistant and less prone to cracking than over concrete block or other more stable substrates may. Staining on the project three-coat stucco, and exterior SIDING services in the opening, minimizing damage EIFS-clad. Difficult to install information... the existing frame jambs and head remain in the brown coat be. Installation, particular stucco installation details must be shown on plans and approved by drainage. The synthetic stucco wall installation, plaster repairs, and the ability to well. 'Ll often find it around chimneys, vents or windows one-coat stucco systems are more and. Wood-Frame walls behind stucco must have a perforated flashing called a “weep screed” at the bottoms windows. Solutions ( 2008 ) pros of stucco work you’re having done, it’s a good idea hire a of.

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