Climate Zone Map (also to be updated for the 2021 I-Codes) Click to enlarge. SIGNAGE ORDINANCE Contact: Saul Stein (904-255-8726, SaulS@coj.net) The water-resistive barrier shall be separated from the stucco by a layer of foam plastic insulating sheathing or other non-water absorbing layer. 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 distinct embedment characteristics of wire lath and expanded metal reflect the differential zinc coating weight requirements. 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. This prepares the unit surface to absorb paste from plaster. Air Barrier. 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. (Construction Code 2) 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 … There are two main standards organizations in North America, the American Society for Testing and Materials (ASTM) and the Canadian Standards Association (CSA). People often ask us if stucco, or portland cement plaster, will adhere to concrete or concrete masonry. 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. 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. Senturion I, II and III Florida Department of Community Affairs Florida Product Approval FL 13447 Texas Department of Insurance This is generally not a concern with new walls. A one hour ferry ride - or thirty minute fast ferry ride - from downtown Seattle, Bremerton is truly a beautiful city. 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. One-coat stucco systems have a third-party report from a model code agency as an application guideline. OTHER CODES AND ORDINANCES. 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. 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. SBC Magazine is a publication of the Structural Building Components Association. Metal lath is regularly used over stud wall construction with or without sheathing materials. 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. A stucco application consists of using a weather-resistive barrier with a metal lath that is attached to the substrate of the building. 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. If contamination is present on the substrate surface, good bond is inhibited. ASTM generates consensus documents with the input of many people, including contractors, engineers, architects, and material producers/suppliers. Concrete masonry surfaces are both absorbent and textured, two things necessary for bond. The cause is led by the inadequate building codes on stucco installation. Stucco Joint Sealant. 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. The 2021 editions of International Building Code (IBC) and International Residential Code (IRC) have effectively responded. 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). Each Code incorporates local County of Los Angeles amendments and the respective State and model codes. 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. 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). 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. Clarification - Accessible Door Hardware - IBC 1010.1.9.1 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 . They agree on what constitutes “best practice” and develop standards to reflect that. In addition, there are two standards from the American Society for Testing and Materials (ASTM) that regulate the application of stucco: STUCCO also called cement plaster, shall be installed following the standards outlined in section 2510 of the California Building Code. Figure 4. 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). Title: SMA show flyers Author: G4 Created Date: Visit our subscription preferences page to subscribe to Industry News or manage your email subscriptions. The requirements also vary according to “dry” or “moist” and “marine” climate zones shown in Figure 3. 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