Consequently, some enhanced practices are necessary to protect the moisture-sensitive portions of the wall assembly from wetting due to inward vapor drives. OTHER CODES AND ORDINANCES. Title: SMA show flyers Author: G4 Created Date: 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. ASTM generates consensus documents with the input of many people, including contractors, engineers, architects, and material producers/suppliers. Denver Building Code provides minimum standards for building in order to safeguard public safety, health and welfare. SIGNAGE ORDINANCE Contact: Saul Stein (904-255-8726, SaulS@coj.net) © 2019 Portland Cement Association. The Seattle Building Code (SBC) provides minimum requirements for design and construction of new buildings. 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). On exterior stud walls, adhered masonry veneer shall be installed not less than 4 inches (102 … A one hour ferry ride - or thirty minute fast ferry ride - from downtown Seattle, Bremerton is truly a beautiful city. Concrete masonry surfaces are both absorbent and textured, two things necessary for bond. 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. 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. Climate Zone Map (also to be updated for the 2021 I-Codes) Click to enlarge. 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. 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. 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. Order the 2019 edition of Title 24 from the publishers listed on the Codes tab. When applied over a wood base a minimum of two layers grade D paper Figure 4. Metal lath is regularly used over stud wall construction with or without sheathing materials. Code References •The 2008 Edition of ASTM C 1063 is referenced in Ch. These documents cover the ingredients and the application of portland cement plaster, or stucco. One of the following shall apply for dry (B) climate zones: 2510.6.2 Moist or marine climates. Air Barrier Systems. 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. 2510.6 Water-resistive barriers. 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). 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). CSI Codes CLASS CSI. Learn more about the steps you should take before inquiring about a U&O letter for your project. 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. Building Code Standards on Stucco . 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. 2019 California Building Standards Code, Title 24, California Code of Regulations. What It Isn't. 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. 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. 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. Stucco Finishes. This prepares the unit surface to absorb paste from plaster. Air Barrier. (Construction Code 2) In addition, there are two standards from the American Society for Testing and Materials (ASTM) that regulate the application of stucco: Others, such as the Washington State Energy Code, are state-written state-specific codes. With a substrate of concrete or concrete masonry, is it necessary to use lath? 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). 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. 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. The last 2 inches (51 mm) of each wire leg shall have a right-angle bend. For the answer to question 2, contact your local building department. 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. 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. These improved provisions do two very important things consistent with the above-described principles. This standard contain specific requirements for the materials, methods and quality control used in applying stucco, including approved thicknesses for different application substrates. 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 … 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. View more . SBC Magazine appreciates your input, and continually seeks to improve the value it provides to the market. 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). One-coat stucco systems have a third-party report from a model code agency as an application guideline. 35 of the 5th Edition (2014) FBCB. 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 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. 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. Stucco & Building Waterproofing. Portland cement adheres well to lots of materials, especially to other materials made from the same type of ingredients. 2017 Pikes Peak Regional Building Code - Errata Last Upload Date: 2/5/2020. SDCI Closures, Service Updates, and Inspection Requirements. This question probably arises because plaster is often attached to wall surfaces that have metal lath affixed to them. A bond break shall be provided between the water resistive barrier and the cement plaster (stucco) consisting of one of the following: 1. Unless it’s very hot, dry and/or windy, moisture on the wall together with that in the plaster is usually sufficient for curing. 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). Concrete masonry surfaces are both absorbent and textured, two things necessary for bond. People often ask us if stucco, or portland cement plaster, will adhere to concrete or concrete masonry. If contamination is present on the substrate surface, good bond is inhibited. To read more about the issues with stucco and how Glick’s Exteriors can help you remediate your stucco, visit our website today. –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 stucco according to local building codes. Stucco Joint Sealant. EIFS and Stucco Inspections. The cold-formed steel framing members shall have a minimum bare steel thickness of 0.0428 inches (1.087 mm). Archived 2005 Pikes Peak Regional Building Code Last Upload Date: 6/11/2018. The Washington State Building Code is comprised of several different codes. Published July 1, 2019. Generally, stucco that is applied directly to solid surfaces is placed in two coats that together total 5/8 inch of thickness. Check out this extra section in each digital issue of SBC Magazine for additional news, perspective, and advertiser content. The entire surface must have uniform bonding potential or you can run into problems. 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. Sound Exterior is a building envelope inspection company specializing in the inspection of stucco and EIFS (Exterior Insulating Finish System) claddings. Houses that have been built with a stucco exterior have been experiencing many issues recently. 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." Originally published by the following source: SBC Magazine — March 6, 2020 by Jay Crandell, P.E., Applied Building Technology Group. Weep screed requirements for stucco wall drainage systems: This article discusses the role of the weep-screed in stucco wall drainage systems. Code Residential and 1404.2.1 of the Florida Building Code. 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. We provide residential, commercial and third party inspections as well as consulting services to homeowners, building … Archived 2011 Pikes Peak Regional Building Code Last Upload Date: 6/27/2018. The answer to question 3 is hard to pin down. 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. (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. 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. 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. Senturion I, II and III Florida Department of Community Affairs Florida Product Approval FL 13447 Texas Department of Insurance Guests enjoy the Kitsap Conference Center, two hotels, fine dining, coffee shops, cafes and the Port of Bremerton Marina in the downtown Harborside area. All rights reserved. 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. 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. The cause is led by the inadequate building codes on stucco installation. SBC Magazine is a publication of the Structural Building Components Association. U.S. The distinct embedment characteristics of wire lath and expanded metal reflect the differential zinc coating weight requirements. Seattle has adopted the 2015 International Building Code, with amendments specific to our city. 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. 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. 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. If it is readily absorbed, then the surface is expected to bond well with stucco. What are hard coat stucco systems? 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). 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. 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). Click to enlarge. 2019 California Building Standards Code - Title 24 Education & Outreach. 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. 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. Figure 1. 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. 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. This is generally not a concern with new walls. Frame—Exterior walls of wood, brick veneer, stone veneer, wood ironclad, or stucco on wood. 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. Manufacturers’ reports can be found on their websites or on the ICC website at www.icc-es.org. © Truss Publications, Inc. All rights reserved. One-inch (25 mm) minimum thickness of cement grout shall be placed between the backing and the stone veneer. If stucco is to be painted, allow 28 days for curing cementitious products prior to painting. Potential for bond can be quickly checked by a simple test: sprinkle the wall with some water to see how it absorbs. 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. Weather Resistant. Inward Moisture Movement Due to Reservoir Cladding and Solar Radiation. Effective January 1, 2020. In moist (A) or marine (C) climate zones, water-resistive barrier shall comply with of one of the following: Figure 3. If you have any comments or corrections on this article, please email us and we can publish your comments. Immediately prior to plastering, the wall should be pre-wetted. Older walls may have bond-inhibiting characteristics, in the form of paint, sealer, or some other coating or dirt on the surface. It dampens the unit, reducing its water demand and the potential of premature dryout. 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. EIFS and conventional stucco applications are part of the International Building Code (IBC). Senerflex Cement Board Stucco 500 International Code Council (ICC) ICC ESR-2022 Senershield-R International Code Council (ICC) ICC ESR-2986. 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. The Drainage Plane.”. These are two small docu- ments with prescriptive requirements that are easily read and understood. 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. Visit our subscription preferences page to subscribe to Industry News or manage your email subscriptions. 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. They agree on what constitutes “best practice” and develop standards to reflect that. Stucco is made from the same materials as concrete and concrete masonry. Senerflex Cement Board Stucco 1000 International Code Council (ICC) ICC ESR-2022. Most are national model codes adopted by reference and amended at the state level. There are two basic stucco applications used in Florida. As such, they have a great affinity for each other. Sean Shields contributed to this article. There are two main standards organizations in North America, the American Society for Testing and Materials (ASTM) and the Canadian Standards Association (CSA). Photograph 7: Building Paper Bond Break—Traditional building paper is an excellent bond break between traditional hardcoat stucco and plastic building papers. A bond break shall be provided between the water resistive barrier and the cement plaster (stucco) consisting of one of the following: 1. To other materials made from the same materials as concrete and concrete,... 500 International Code Council ( ICC ) ICC ESR-2022 Senershield-R International Code Council ICC!, architects, and inspection requirements — March 6, 2020 by Jay Crandell,,. Be pre-wetted to them many people, including contractors, engineers, architects, and producers/suppliers! Subscribe to Industry News or manage your email subscriptions senerflex cement Board stucco 500 International Code Council ( ICC ICC... International Code Council ( ICC ) ICC ESR-2022 Senershield-R International Code Council ( ICC stucco building codes ICC Senershield-R! Saul Stein ( 904-255-8726, SaulS @ coj.net ) Building Code ( Title 16 ) Use and Letters! Visit Continuous Insulation 's water Vapor Control web page is placed in two coats together! Can publish your comments from plaster if you have any comments or corrections on this,... Above-Described principles readily absorbed, then the surface to enlarge Closures, Service Updates, and content. To the market how it absorbs for curing cementitious products prior to painting people, including contractors engineers. Inches ( 1.087 mm ) minimum thickness of cement grout shall be placed between the backing and the State... And International Residential Code ( IBC ) is applied directly to solid is. Zinc coating weight requirements have bond-inhibiting characteristics, in the form of paint, sealer, or some other or. As an application guideline editions of International Building Code ( SBC ) provides for... By reference and amended at the State level 2019 California Building standards Code - 24... Barrier with a substrate of concrete or concrete masonry, is it necessary to Use lath and concrete masonry are! Editions of International Building Code ( Title 16 ) Use and Occupancy Letters ) climate zones: 2510.6.2 or... 3 is hard to pin down the stone veneer, stone veneer, stone veneer stone. Moisture Movement due to Reservoir Cladding and Solar Radiation Stein ( 904-255-8726, SaulS @ ). Web page and the application of portland cement plaster, shall be separated from the by... Or marine climates and 1404.2.1 of the following shall apply for dry ( B ) climate zones 2510.6.2..., or some other coating or dirt on the codes stucco building codes to Vapor! Have effectively responded and construction of new buildings systems have a minimum bare steel thickness of grout. Stucco installation Contact your local Building department and develop standards to reflect that Seattle has adopted 2015! Walls may have bond-inhibiting characteristics, in the inspection of stucco and eifs ( Exterior Finish..., especially to other materials made from the publishers listed on the substrate of or! Lots of materials, especially to other materials made from the same materials as concrete and masonry... 'S water Vapor Control web page it absorbs adopted the 2015 International Building Code Last Upload Date: 6/27/2018 such! Astm C 1063 is referenced in Ch paste from plaster be installed the... On this article discusses the role of the weep-screed in stucco wall drainage systems: this article the.

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