(Construction Code 2) Air Barrier. Learn more and access 2016-2017 archives here. If stucco is to be painted, allow 28 days for curing cementitious products prior to painting. One-inch (25 mm) minimum thickness of cement grout shall be placed between the backing and the stone veneer. Houses that have been built with a stucco exterior have been experiencing many issues recently. Visit our subscription preferences page to subscribe to Industry News or manage your email subscriptions. View more . STUCCO also called cement plaster, shall be installed following the standards outlined in section 2510 of the California Building Code. U.S. Frame—Exterior walls of wood, brick veneer, stone veneer, wood ironclad, or stucco on wood. The distinct embedment characteristics of wire lath and expanded metal reflect the differential zinc coating weight requirements. Sound Exterior is a building envelope inspection company specializing in the inspection of stucco and EIFS (Exterior Insulating Finish System) claddings. Then three coats of masonry stucco cement are applied in a 3/8-inch scratch coat, followed by a 3/8-inch brown coat, and finally a 1/8-inch finish coat. A stucco application consists of using a weather-resistive barrier with a metal lath that is attached to the substrate of the building. Weep screed requirements for stucco wall drainage systems: This article discusses the role of the weep-screed in stucco wall drainage systems. The building code specification recognizes that the principal long-term condition for corrosion protection is achieved by full stucco embedment of the stucco metal base. Originally published by the following source: SBC Magazine — March 6, 2020 by Jay Crandell, P.E., Applied Building Technology Group. www.cement.org, 2020 Energy and Environment Award Winners, 2020 Chairman’s Manufacturing Performance Award Winners, 2019 Chairman's Safety Performance Award Winners, 2019 Chairman’s Manufacturing Performance Award Winners, State & Market US Summary (13 Categories, 1 Year), State & Market Trend (46 Categories, 20 years), Construction PIP by State (23 Categories, 20 years), Resiliency Potential in the Wildfire-Prone Single-Family Market October 2020, The Potential Impact of Tariffs Levied Against Chinese Cement, Railway-Related Cement Consumption Outlook, Trump Infrastructure: Potential Taxpayer Savings from the Use of Life Cycle Cost Analysis (LCCA), Attitudes & Perceptions Study: Soil Cement, FDR and RCC Pavement Market, Long Term Cement Pavement Consumption Outlook, Energy-Related Cement Consumption, September 2017, Airport-Related Cement Consumption Outlook, July 2017, U.S. Cement Manufacturing Capacity, February 2017, "The Wall" Impact on Cement Consumption, February 2017, Stronger Sentiment, Higher Interest Rates, January 2017, U.S. Portland Cement Industry: Plant Information Summary, Leadership in Energy and Environmental Design, COVID-19 State Resources and Environmental Policies, MIT Concrete Sustainability Hub Pavement Research, Cement-Stabilized Subgrade (CSS) Soils and Cement Modified Soils (CMS) Case Histories, Full-Depth Reclamation (FDR) Case Histories, Roller-Compacted Concrete (RCC) Case Histories, Roller-Compacted Concrete (RCC) Performance, Find a Roller-Compacted Concrete (RCC) Contractor, Storm Water Management by Pervious Concrete, Sustainable Cement & Concrete Manufacturing Toolkit, Sustainable Cement & Concrete Construction Toolkit, Design and Control of Concrete Mixtures Course, Troubleshooting: Solutions to Concrete Field Problems, Mill Grinding Course and Kiln Process Program, Masonry Walls and the Importance of Mockups, Verifying Compressive Strength of Masonry, The Masonry Society Becomes Sole Sponsor of Code and Specification, Special Inspection in the Codes and Standards, Placing Joints in Concrete Flatwork: Why, How, and When, The Difference Between Curing and Drying Concrete, ASTM C 926, Standard Specification for Application of Portland Cement-Based Plaster, ASTM C 1063, Standard Specification for Installation of Lathing and Furring to Receive Interior and Exterior Portland Cement-Based Plaster. Generally, stucco that is applied directly to solid surfaces is placed in two coats that together total 5/8 inch of thickness. If it is readily absorbed, then the surface is expected to bond well with stucco. Denver Building Code provides minimum standards for building in order to safeguard public safety, health and welfare. The water-resistive barrier shall be two layers of 10-minute Grade D paper or have a water resistance equal to or greater than two layers of water-resistive barrier complying with ASTM E2556, Type I. © Truss Publications, Inc. All rights reserved. If contamination is present on the substrate surface, good bond is inhibited. Title: SMA show flyers Author: G4 Created Date: The 2021 editions of International Building Code (IBC) and International Residential Code (IRC) have effectively responded. Code References •The 2008 Edition of ASTM C 1063 is referenced in Ch. Senerflex Cement Board Stucco 500 International Code Council (ICC) ICC ESR-2022 Senershield-R International Code Council (ICC) ICC ESR-2986. Building Code Standards on Stucco . As such, they have a great affinity for each other. Order the 2019 edition of Title 24 from the publishers listed on the Codes tab. But, this also provides flexibility to use other materials like some foam sheathing products to serve as the WRB layer where approved for that purpose and also having a water-resistance equivalent to ASTM E2556 Type II. Clarification - Accessible Door Hardware - IBC 1010.1.9.1 Each Code incorporates local County of Los Angeles amendments and the respective State and model codes. EIFS and Stucco Inspections. These are two small docu- ments with prescriptive requirements that are easily read and understood. 2014 FBC - Building, 5 th edition > 25 Gypsum Board and Plaster > 2510 Lathing and Furring for Cement Plaster (Stucco) JUMP TO FULL CODE CHAPTER 2510.1 General Exterior and interior cement plaster and lathing shall be done with the appropriate materials listed in Table 2507.2 and Chapter 35. The final step in the building permit process is the issuance of a Use and Occupancy Letter certifying that the building has met the minimum standards of the building code. What It Isn't. 1404.2.1 Where cement plaster (stucco) is to be applied to lathoverframeconstruction,measuresshallbetakentopre-vent bonding between the cement plaster and the water resistive barrier. In both cases, as a WRB layer or as an intervening “non-water absorbing” layer, the foam sheathing also serves as a “block” or retarder to inward water vapor movement from the stucco. First, they allow traditional practices to be continued where they have been successful in the “dry” climate zones (see Section 2510.6.1 in Figure 2 and Figure 3 for the “dry” climate region). 2021 I-Codes Adopt Major Energy Efficiency & Building Science Advancements, Research Report 1410-03 Assessment of Water Vapor Control Methods for Modern Insulated Light-Frame Wall Assemblies, Research Report 1701-01 Model Moisture Control Guidelines for Light-Frame Walls: A Building Code Supplement for Builders, Designers, and Building Officials, Drain the Rain, On the Plane. Figure 4. (Construction Code 1) Joisted Masonry—Exterior walls of masonry material (adobe, brick, concrete, gypsum block, hollow concrete block, stone, tile, or similar materials) with combustible floor and roof. 2510.6 Water-resistive barriers. Seattle has adopted the 2015 International Building Code, with amendments specific to our city. Water Proofing. Published July 1, 2019. Second, the new code language provides additional enhancements that are required for use of stucco in the “moist” and “marine” climate zones (see Section 2510.6.2 in Figure 2 and Figure 3). SIGNAGE ORDINANCE Contact: Saul Stein (904-255-8726, SaulS@coj.net) The cold-formed steel framing members shall have a minimum bare steel thickness of 0.0428 inches (1.087 mm). OTHER CODES AND ORDINANCES. Senturion I, II and III Florida Department of Community Affairs Florida Product Approval FL 13447 Texas Department of Insurance This standard contain specific requirements for the materials, methods and quality control used in applying stucco, including approved thicknesses for different application substrates. There are two main standards organizations in North America, the American Society for Testing and Materials (ASTM) and the Canadian Standards Association (CSA). The water-resistive barrier shall be 60-minute Grade D paper or have a water resistance equal to or greater than one layer of water-resistive barrier complying with ASTM E2556, Type II. This question probably arises because plaster is often attached to wall surfaces that have metal lath affixed to them. The water-resistive barrier shall be separated from the stucco by a layer of foam plastic insulating sheathing or other non-water absorbing layer. Building Code (Title 16) Use and Occupancy Letters. When applied over a wood base a minimum of two layers grade D paper Portland cement adheres well to lots of materials, especially to other materials made from the same type of ingredients. 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. 2020 County of Los Angeles Existing Building Code (Title 33) Enforcement of the provisions of each Code begins on the effective date listed above for projects with an application date on or after their respective effective date. It should be noted, however, that the above provisions only apply where wood-based sheathing is used on the exterior side of a wall supporting the stucco (consistent with prior editions of the IBC and IRC). This prepares the unit surface to absorb paste from plaster. A bond break shall be provided between the water resistive barrier and the cement plaster (stucco) consisting of one of the following: 1. The requirements also vary according to “dry” or “moist” and “marine” climate zones shown in Figure 3. Immediately prior to plastering, the wall should be pre-wetted. 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). Check out this extra section in each digital issue of SBC Magazine for additional news, perspective, and advertiser content. Stucco & Building Waterproofing. People often ask us if stucco, or portland cement plaster, will adhere to concrete or concrete masonry. Well, here’s the first installment and it addresses some very useful improvements and clarifications made to the Portland Cement stucco water-resistive barrier (WRB) provisions. These documents cover the ingredients and the application of portland cement plaster, or stucco. In addition to complying with Item 2 of Section 2510.6.1, a space with a minimum drainage efficiency of 90% as measured in accordance with ASTM E2273 or Annex A2 of ASTM E2925 is added to the exterior side of the water-resistive barrier. In moist (A) or marine (C) climate zones, water-resistive barrier shall comply with of one of the following: In addition to complying with Item 1 or 2 of Section 2510.6.1, a minimum 3/16 inch (4.8 mm) space shall be added to the exterior side of the water-resistive barrier. Building Safety Forms, Reports & Permit Searches Current Building Codes Energy Code Information FasTrax Homeowner's How-To Guide Inspections Inspections - Commercial Instructional Videos Business Registration Information Code Enforcement & Zoning It also clarifies that the nebulous intervening “non-water absorbing layer” placed between the stucco and the WRB layer has always been intended to apply to materials like foam plastic insulating sheathing (see Section 2510.6.1 option #2 in Figure 2). Learn more about the steps you should take before inquiring about a U&O letter for your project. The answer to question 3 is hard to pin down. The Drainage Plane, continually seeks to improve the value it provides, Editor's Message: Three Lessons Learned from 2020, President's Message: We Are Technology Brokers. As mentioned in a prior January 2020 EEBS article (2021 I-Codes Adopt Major Energy Efficiency & Building Science Advancements), many advancements forthcoming in the 2021 ICC family of codes (energy and building codes) were overviewed with the intent to address these advancements individually in future articles. However, in this latter case, a separate bond-break or non-water absorbing layer must be applied over the foam sheathing WRB as shown in Figure 4 (i.e., the foam sheathing is used as the WRB, not as the intervening non-water absorbing layer). Metal lath is regularly used over stud wall construction with or without sheathing materials. We provide residential, commercial and third party inspections as well as consulting services to homeowners, building … 2019 California Building Standards Code - Title 24 Education & Outreach. There are two options for compliance: (1) use of a prescribed minimum 3/16-inch-thick drainage space to the exterior side of the water resistive barrier (behind the stucco) or (2) a space with a minimum drainage efficiency of 90% as measured in accordance with two commonly used ASTM standards. This gap also allows for what is known as “hygric re-distribution” (for more information please refer to see BSC article: “Drain the Rain, On the Plane. When solar-driven drying occurs after a rain event, the inward vapor drives can readily exceed the magnitude of outward vapor drives experienced during the winter (see Figure 1). For other types of sheathing that are sensitive to moisture, it is recommended that the provisions aimed at wood-based sheathing be used, even though not required by the code. 2017 Pikes Peak Regional Building Code - Errata Last Upload Date: 2/5/2020. In addition, there are two standards from the American Society for Testing and Materials (ASTM) that regulate the application of stucco: In addition, the traditional WRB requirement in option #2 (i.e., 60-min Grade D paper) is clarified to allow alternative WRB materials with at least equivalent water resistance of ASTM E2556 Type II, such as various building wrap materials. For additional information, visit Continuous Insulation's Water Vapor Control web page. Finally, in rainy climates, it is important to provide at least a small drainage gap and pathway to efficiently remove bulk water from rain intrusion through the reservoir cladding which would otherwise add to the inwardly-driven water vapor load. On exterior stud walls, adhered masonry veneer shall be installed not less than 4 inches (102 … ASTM generates consensus documents with the input of many people, including contractors, engineers, architects, and material producers/suppliers. Older walls may have bond-inhibiting characteristics, in the form of paint, sealer, or some other coating or dirt on the surface. The discussion includes a definition of weep screed, citation of building codes relevant to weep screeds, and references to expert sources on weep screed requirements & specifications for various stucco wall drainage systems. Weather Resistant. In addition to complying with Item 1 or 2 of Section 2510.6.1, a minimum 3/16 inch (4.8 mm) space shall be added to the exterior side of the water-resistive barrier. Senerflex Cement Board Stucco 1000 International Code Council (ICC) ICC ESR-2022. Unless it’s very hot, dry and/or windy, moisture on the wall together with that in the plaster is usually sufficient for curing. The cause is led by the inadequate building codes on stucco installation. Code Residential and 1404.2.1 of the Florida Building Code. 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. In a traditional successful approach, the reservoir cladding is back-ventilated to help remove the water vapor being driven inward as the cladding attempts to dry both inward and outward (see Figure 1). The weather resistant barrier (WRB) must be installed per Sections R703.6.3 of the Florida Building Code Residential and 1404.2.1 of the Florida Building Code. If you have any comments or corrections on this article, please email us and we can publish your comments. ASTM Standard C 926, Specification for Application of Portland Cement-Based Plaster, permits direct application of stucco to solid surfaces like concrete and masonry as long as bond is sufficient. The permitting and inspection process ensures that all home projects meet these standards and that all dwellings are safe and habitable at the time of construction. All rights reserved. A bond break shall be provided between the water resistive barrier and the cement plaster (stucco) consisting of one of the following: 1. In the state of Arizona, every local jurisdiction is responsible for establishing and enforcing building codes.However, the Manufactured Housing Division, part of the Arizona Department of Housing (ADOH), maintains standards of safety and quality for all manufactured homes, factory-built buildings, and accessory structures. To read more about the issues with stucco and how Glick’s Exteriors can help you remediate your stucco, visit our website today. For the answer to question 2, contact your local building department. Air Barrier Systems. CSI Codes CLASS CSI. Potential for bond can be quickly checked by a simple test: sprinkle the wall with some water to see how it absorbs. Manufacturers’ reports can be found on their websites or on the ICC website at www.icc-es.org. SBC Magazine is a publication of the Structural Building Components Association. Florida Building Code 7th Edition (2020) – Energy Conservation MECHANICAL CODE Florida Building Code 7th Edition (2020) - Mechanical GAS CODE Florida Building Code 7th Edition (2020) - Fuel-Gas. Click to enlarge. There are two basic stucco applications used in Florida. This can result in elevated exterior sheathing moisture contents, and for buildings that are air-conditioned in the summer, condensation on the interior vapor retarder or high moisture contents in interior finishes. Stucco Joint Sealant. A one hour ferry ride - or thirty minute fast ferry ride - from downtown Seattle, Bremerton is truly a beautiful city. The last 2 inches (51 mm) of each wire leg shall have a right-angle bend. Stucco Finishes. SDCI Closures, Service Updates, and Inspection Requirements. ASTM Standard C 926, Specification for Application of Portland Cement-Based Plaster, permits direct application of stucco to solid surfaces like concrete and masonry as long as bond is sufficient. The entire surface must have uniform bonding potential or you can run into problems. Water-resistive barriers shall be installed as required in Section 1403.2 and, where applied over wood-based sheathing, shall comply with Section 2510.6.1 or Section 2510.6.2. The Washington State Building Code is comprised of several different codes. Example of a stucco application variation with foam sheathing WRB layer and a separate non-water absorbing (bond break) layer over the foam sheathing (NOTE:  In “moist” and “marine” climates, a means of positive drainage is additionally required for all stucco applications per Section 2510.6.2 of Figure 3). The International Building Code (IBC) provides recommendations for stucco installation, including the minimum time delay between each coat. In another successful approach commonly used with stucco, inwardly-driven water vapor can be blocked by placing an “intervening layer” of low vapor permeance “non-water absorbing” material between the reservoir cladding and the remainder of the wall assembly. © 2019 Portland Cement Association. Thus, for all other sheathing materials (regardless of their moisture sensitivity) the only thing the code continues to require is a WRB behind the stucco (without a drainage space) in any climate and irrespective of the amount rain or moisture hazard. Your inspector may want to see an additional layer of building paper or asphalt felt on the exterior side of the Home Slicker Stone and Stucco, because the wording of the building code gives your inspector that latitude. It dampens the unit, reducing its water demand and the potential of premature dryout. Others, such as the Washington State Energy Code, are state-written state-specific codes. This provides a simple prescriptive solution and also performance-based solutions allowing use of proprietary drainage materials and methods such as grooved foam sheathing, drainage mats, or building wraps that provide adequate drainage space or drainage performance. For additional information, visit Continuous Insulation's Water Vapor Control web page. Most are national model codes adopted by reference and amended at the state level. Partial bond will create undesirable stresses and can lead to delamination and cracking of the stucco layer. In moist (A) or marine (C) climate zones, water-resistive barrier shall comply with of one of the following: Figure 3. Guests enjoy the Kitsap Conference Center, two hotels, fine dining, coffee shops, cafes and the Port of Bremerton Marina in the downtown Harborside area. 2510.6.1 Dry climates. Concrete masonry surfaces are both absorbent and textured, two things necessary for bond. One-coat stucco systems have a third-party report from a model code agency as an application guideline. The Drainage Plane.”. This is the long-standing practice employed with anchored brick masonry veneer by use of a 1-inch air gap and vent or weep holes in the veneer. 2019 California Building Standards Code, Title 24, California Code of Regulations. Consequently, some enhanced practices are necessary to protect the moisture-sensitive portions of the wall assembly from wetting due to inward vapor drives. Whether joining new stucco to existing or new work a minimum overlap of 2 inches horizontal and 6 inches vertical is required for stucco lath. Benefits of traditional Portland cement-based stucco Review of building codes and ASTM standards Research reports on water intrusion Design features required to managing water intrusion and stresses in stucco Specification and detailing requirements and recommended best practices 1 … What are hard coat stucco systems? Climate Zone Map (also to be updated for the 2021 I-Codes) Click to enlarge. EIFS and conventional stucco applications are part of the International Building Code (IBC). Concrete masonry surfaces are both absorbent and textured, two things necessary for bond. Archived 2005 Pikes Peak Regional Building Code Last Upload Date: 6/11/2018. This is generally not a concern with new walls. Figure 1. –2109.3.4.8 Exterior Finish - Adobe Construction –2510.3 Lathing and Furring for Cement Plaster (Stucco) –Table 2511.1 Installation of Plaster Construction –2512.1.1 On Grade Floor Slab Construction 35 of the 5th Edition (2014) FBCB. This practice will help to mitigate moisture issues that have occurred behind stucco and adhered veneers (e.g., reservoir claddings) in moist regions of the U.S. The Seattle Building Code (SBC) provides minimum requirements for design and construction of new buildings. Photograph 7: Building Paper Bond Break—Traditional building paper is an excellent bond break between traditional hardcoat stucco and plastic building papers. Effective January 1, 2020. stucco according to local building codes. The Florida Building Code defines "stucco" as a Portland cement-based plaster mixed and applied according the ASTM C 926-06, "Standard Specification for Application of Portland Cement-Based Plaster." The individual layers shall be installed independently such that each layer provides a separate continuous plane and any flashing, installed in accordance with Section 1404.4 and intended to drain to the water-resistive barrier, is directed between the layers. Archived 2011 Pikes Peak Regional Building Code Last Upload Date: 6/27/2018. Reservoir claddings, like Portland cement (conventional) stucco, adhered masonry veneers, and anchored brick masonry veneers to name a few, can absorb and store significant amounts of rainwater. 03 00 00 - Concrete 07 00 00 - Thermal & Moisture Protection 09 00 00 - Finishes 10 00 00 - Specialties 31 00 00 - Earthwork Project Experience Commercial. These improved provisions do two very important things consistent with the above-described principles. Inward Moisture Movement Due to Reservoir Cladding and Solar Radiation. Sean Shields contributed to this article. With a substrate of concrete or concrete masonry, is it necessary to use lath? SBC Magazine appreciates your input, and continually seeks to improve the value it provides to the market. One of the following shall apply for dry (B) climate zones: 2510.6.2 Moist or marine climates. Foam sheathing continuous insulation is commonly used for this purpose and, in colder climates, it must be used in the appropriate amount together with an interior vapor retarder to effectively control wintertime outward vapor drives (more on this to come in a future article which will discuss coordinated advancements in the 2021 IBC and IRC water vapor retarder provisions; in the interim please refer to the wall calculators, Research Report 1410-03 Assessment of Water Vapor Control Methods for Modern Insulated Light-Frame Wall Assemblies and Research Report 1701-01 Model Moisture Control Guidelines for Light-Frame Walls: A Building Code Supplement for Builders, Designers, and Building Officials). The 2021 IBC and IRC code improvements to address the above principles are shown in Figure 2 below (only the IBC text is shown; the IRC text is identical). Stucco is made from the same materials as concrete and concrete masonry. 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Energy Code, are state-written state-specific codes and continually seeks to improve the value it provides to the market or! Surface is expected to bond well with stucco will adhere to concrete or concrete masonry,. Important things consistent with the above-described principles water Vapor Control web page respective State and model.!, will adhere to concrete or concrete masonry surfaces are both absorbent and textured, two things for! The application of portland cement plaster, shall be placed between the backing and the stone veneer used. Protect the moisture-sensitive portions of the stucco layer: this article, please email us and can... Standards Code - Title 24 Education & Outreach of using a weather-resistive barrier a! Vapor Control stucco building codes page is readily absorbed, then the surface of Title 24 Education Outreach.