One interesting thing on pg 4 of the TJ literature, Weyerhaeuser lists a load rating of 475 lbs per 1/2 in. No longer is that the case, thanks to the innovative BVLZ brick veneer ledger connector from Simpson Strong-Tie. Of course, Weyerhaeuser only lists 'lag bolts' and not through bolts. lag screw and ½ in. It is mandatory to procure user consent prior to running these cookies on your website. Necessary cookies are absolutely essential for the website to function properly. Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. But even a freestanding deck … But opting out of some of these cookies may have an effect on your browsing experience. lag screw and … They need to look into what exists behind the brick. There are additional challenges involved with the fact that this connector will attach to, and depend on existing framing. 2020 Simpson Strong-Tie Scholarship Students’ Ques…, Case Study: Gruening Middle School’s Seismic…, Specifying Simpson Strong-Tie® Products in Your De…, Copyright © 2021 Simpson Strong-Tie Structural Engineering Blog –. Building permits are required: • When a deck or a platform is more than 30 inches above adjacent grade. gap between the bottom of any doors and the top of the deck boards. A ledger relies on the fasteners and strength of the wood ledger board and rim board of the house to carry the deck live and dead loads. We use cookies on this site to enhance your user experience. Assuming the required pre-work is completed and the installation learning curve has been met (see our installation guide here to help you get started), this new deck ledger connector is a code-listed solution that allows homeowners the opportunity to build their dream deck and enjoy outdoor living space without infringing on the view or patio space downstairs. When a homeowner with a brick veneer home wants a deck, how do you safely add outdoor living space? Did you know that the building codes do not allow for the brick veneer to carry any load except for the weight of the brick above it? Brick or masonry veneer has traditionally posed a problem to homeowners and contractors seeking to attach a deck to a home without removing large portions of the veneer or siding. Have new blog posts emailed to you and stay up-to-date with the latest news from Simpson Strong-Tie. Top of post mounted Girder Decks 48” or greater from grade requir- ing lateral bracing shall be … Watch an interactive webinar on proper methods for deck ledger connections, which includes a discussion on using the BVLZ to safely add a deck to an existing structure with masonry veneer. Hundreds of articles and videos by top deck-building pros on how to design and build a beautiful, sturdy, and safe deck. Table R502.2.2.1 has three options: ½ in. Looking further, where is the rim board of the house? For example, across the country, existing airspaces between the veneer and the framing vary, brick sizes also vary, and the list of variables goes on. That way, water … It benefits you in many ways. Douglas Fir LVL – no attachment is allowed to strand lumber, SYP LVL, the mudsill, I-joists, floor trusses or other materials. By clicking "I AGREE" below, you are giving your consent for us to set cookies. "You're not going to find any … • At the house connection, joists bear on the attached ledger board. Plus you need to double fasteners at ledger butts and ends. AM101.2 Deck Design … When attaching a ledger to those other rim joist materials you must have the connection designed by an engineer. Lag screw tips must penetrate the house rim joist – that’s at least ½ in. After hearing the challenges our customers face, we set out to develop a new solution that would bypass the brick completely and attach the deck safely to the structural framing behind the brick veneer. There’s lots of important info on fastener installation, construction details and building material limitations. Decks shorter than 30 inches above grade do not require a building … (see photo). In order to maximize the load we needed to increase the diameter of the strut — but again there was a fine balance to uphold, because we wanted to allow the end user to drill reasonably sized holes in the brick veneer. Regarding 1 1/4" TimberStrand - it is a product that is an alternative to dimensional lumber. Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. If you have a deck attached to your house… But even a freestanding deck comes with its own set of challenges. Residential Code of Ohio (RCO) Deck and Porch Construction Pertinent Code Sections This handout has been put together to show the RCO code sections that are necessary to incorporate into your … The 2009 IRC gives us a prescriptive bolting and lag screwing schedule to follow when mounting a deck ledger to a house. In areas with heavy snowfalls, it may be desirable to have the finished deck … How is it attached to the framing? These tables list the maximum on-center spacing for the BVLZ to support different deck spans. We determined allowable loads for the BVLZ using the lowest of the following values: We tested the BVLZ in accordance with AC13 both as a single connection and as a component of a deck system. https://www.hunker.com/13711816/code-requirements-for-decks Just don’t forget to read the fine print (AKA Footnotes) beneath the table and other code sections. The deck ledger must be a 2x8 minimum. Properly installing a ledger board for your deck is one of the most important structural components of building a safe and strong deck. Rachel has a bachelor’s degree in architectural engineering, an MBA, and is a California-licensed Professional Engineer. We discuss testing of wood connectors in more detail in this blog post. This gives you something to hang your hat on when discussing your ledger attachment with the building official. From all that trial and error, however, the BVLZ brick veneer ledger connector was born. Because detached decks usually remain lower than 30 inches, many communities do not … Sign up for eletters today and get the latest how-to from Fine Homebuilding, plus special offers. These articles will teach you how to install flashing and bolt the ledger connection to the house … From all of the testing and calculations that were performed, we found that the governing load for an engineered design is the bearing capacity of the compression strut on the rim or WSP wall sheathing. Q: The deck plans I recently submitted for a building permit were rejected by the building department’s plan reviewer, with a note explaining that—according to the building code—a deck ledger can’t be attached to the rim joist of a house with a cantilevered floor. Alternately, the deck shall be built freestanding with … These two components act in a truss-like manner. What material is it? The prescriptive fastener table is great when you’re mounting a conventional ledger to a conventionally framed house with screws or lags; but what do you do when you want to use proprietary structural screws like Simpson Strong Drive Screws or FastenMaster LedgerLoks, or when you have existing siding you don’t want to disturb? How is the rim attached to the rest of the framing? © 2021 The Taunton Press, Inc. All rights reserved. We also use third-party cookies that help us analyze and understand how you use this website. Become a member and get unlimited site access, including the AM105.1AM105.1. Often, that soil is located much deeper than one would guess, especially if there is a basement, because the soil adjacent to a house is disturbed. Once all the initial work is done, we provide you with the BVLZ allowable downloads so that an engineered design can be completed. Free Standing Deck Code Issues by: Anonymous You are correct that deck footings near the house [may] have to be placed at the same depth as the footings for the house itself. In this post, Rachel Holland, P.E., an R&D structural engineer at Simpson Strong-Tie, explains the research and insights that went into testing and developing this revolutionary connector. "lag bolt". These cookies do not store any personal information. Minimum 36 ”at all points above the permitted handrail height. STAIRS. As such, its requirements for decks closely mirror those adopted by many states and municipalities throughout the country. On the left is an existing interior floor system modeling when floor joists are parallel to the rim board. Whether you’re installing a brand new deck or shoring up an old one, the trick to attaching a deck that will last for decades is in making sure the wood you use is decay resistant, and the ledger board that carries the supporting floor joists is properly anchored to the house. Start your subscription today and save up to 52%. Attaching a deck … (see photo) [NOTE: The 2012 IRC – 2018 IRC all have the same table. How thick is it? The BVLZ allows the deck to attach to the structure without bearing on the veneer. Because of these code provisions set forth in the IRC and DCA6, it’s difficult to attach a deck to a structure without either removing large portions of brick, as is required by some products available on the market, or building a freestanding deck. You also have the option to opt-out of these cookies. Of course, a deck is a great addition to your house. Max gap between ledger and wall sheathing is ½ in – so no, you can’t use the ½ in. Joists on a free-standing deck do not connect to the house… Continuing education units are offered for attending this webinar. Therefore, the make-up of the existing structural framing is critical. Because of these code provisions set forth in the IRC and DCA6, it’s difficult to attach a deck to a structure without either removing large portions of brick, as is required by some products available on the market, or building a freestanding deck. Here you can see one of the assembly tests with the deck on the right. bolt with the ledger spaced off the wall sheathing by ½ in. To properly attach a deck ledger using 1/2" lag screws, 5/16" holes need to be pre-drilled through the ledger and rim joist. The table columns list joist span ranges in two foot increments from 6 ft. to 18 ft.; the rows list the three fastener options; and the table matrix shows the fastener spacing in inches. An improperly constructed deck is, to put it simply, dangerous. View all posts by Rachel Holland. A deck is an exposed exterior wood floor structure that is permitted to be attached to the structure or freestanding. We also calculated the bearing of the compression strut on a solid rim and wood structural panel (WSP) wall sheathing in front of the rim. Is there WSP sheathing on the wall? Get complete site access to expert advice, how-to videos, Code Check, and more, plus the print magazine. These cookies will be stored in your browser only with your consent. The 8th edition of the Massachusetts State Building Code provides a prescriptive table for ledger board attachment of decks. In these cases, it is very important to consult with a building inspector, engineer or architect to understand how to correctly attach a ledger board to the house wall. Of the three main building codes in the United States—all of which were consolidated into a uniform code in the year 2000—not one dealt with fastening decks to houses. Overall deck length shall be equal to or less than overall deck width. Bolts and screws must be located 2 in. … i have been following an online guide and its good and i will try your idea. House rim joist must be minimum of 2x sawn lumber or 1 in. Here is a summary of some of the requirements: If positive connection to the primary building structure cannot be verified during inspection, decks shall be self supporting. Decks Project Guide. Building Codes for a Wood Deck. Home owners must obtain a building permit for all decks attached to the home or for decks that are 30 inches or more above grade. Most house framing relies on building elements (floors, walls, roofs) being stacked one atop another. Become a member and get instant access to thousands of videos, how-tos, tool reviews, and design features. We calculated the capacity of the Strong-Drive® SD Connector screws for transferring the load from the ledger into the BVLZ connector, and the shear and withdrawal capacity of the Strong-Drive SDWH Timber-Hex screws that transfer the load from the BVLZ ledger plate into the rim board. http://www.hometoolsdepot.com. Is there interior floor sheathing? • When a deck or platform is attached … bolt, ½ in. thanks, Sorry i forgot to mention the guide. I'd check with my local official before trying it. Nonetheless, when planning your deck… Many decks are attached to the house for structural reasons and because they are easier to access from the house. By orienting the screws at an upward angle, we were able to impose a tension force at the top of the rim, and then the compression strut stops the ledger from bearing in on the brick. The Indiana Building Code is largely based on the 2006 International Building Code (IBC). Use a second 2-by-4 on the opposite side. If you are following the IRC requirements for deck building, we provide four different prescriptive spacing tables to help you space the BVLZs on your deck ledger. Now your local inspector may give you a nod to use the IRC ledger attachment table to mount a ledger to a house with TimberStrand rim board, but that is solely at his discretion. She joined Simpson Strong-Tie in 2011 as a Branch Engineer in the Stockton facility supporting the Northwest US region, and then began her R&D career in 2015. Decks less than 48” from grade can use 3 16d toe- nailed for attachment of wood post. as shown in FIGURES 3 and 4. So, you can say yes at attaching a deck to house or not. Attach Deck to House or Not. It is necessary to keep your foot right on the ground. How thick is it? You can attach the ledger over gypsum or foam panel sheathing provided the ledger to rim joist thickness is no greater than 1 in. down from top and up from bottom of ledger and staggered up-down. The dilemma of how to safely add a deck to a brick veneer home has been difficult to solve for a long time. Through calculations and multiple assembly tests, we confirmed that the strength of the interior framing and fastening was critical to performance. wood decks that are attached to the house to resist lateral forces. For the BVLZ, we evaluated the shear and withdrawal capacity of screws into the rim board with single fastener testing in accordance with AC233. This is a good idea. I qualify the above statement … After that, a 1/2" hole should be drilled through the ledger only. [R507.2.3] 2. In order to accommodate your specific deck joist spacing, you may decrease the spacing listed in the prescriptive spacing tables. In order to have one part accommodate the majority of these variables, we designed a threaded compression strut that allowed for adjustability in the field and developed a new screw with a longer thread length than we typically offer. To properly attach a deck ledger, follow these guidelines: Drop the level of the new ledger enough to allow at least a 2-in. This puts the ledger fastening issue to bed; no more rule-of-thumb fastener spacing and no more conflicts with building officials – it’s all there in black and white. Decks that DON’T require a Building Permit or Zoning Certificate include: a) Decks less than 23 5/8” (600mm) in height from walking surface to grade when measured in accordance with the Ontario Building Code requirements, b) Decks not providing access to the principal entrance, AND c) Decks … Adding Fascia and Other Decorative Elements, Laying Out, Cutting, and Installing the Stringers, Installing Treads, Risers, and Stair Railings, Expert insights on techniques and principles. Regardless of how strong we made our part, the framing of the existing building determines the maximum deck load that can be supported by the BVLZ. Is there access to the rim from the interior of the home? Roofed porches (open or screened-in) are permitted to be constructed using these provisions. Cut two 2-by-8-inch boards to span the length of the deck and attach … You can't read too much into the code by making the inference that because a product has an ICC-ES report that a prescriptive table in the code book will apply directly to that product. I’ve mounted deck … Attach a 2-by-8-inch ledger board perpendicular to the house. There are many field variables that made the design of this new product very challenging, but it was that much more rewarding when we were finally able to hit upon the solutions. Check for level, and then temporarily secure it with a 2-by-4-inch post set on the ground. There are solutions and I’ll address them in future postings. See DECK FRAMING PLAN for definition of deck length and … This website uses cookies to improve your experience while you navigate through the website. [tip] Lower the Deck to Keep Snow Out. In addition, ensuring the new deck post footing is in undisturbed soil can be challenging. bolt, ½ in. The tables require that the existing framing meets the IRC framing requirements. When decks are to be attached to the house, the house band board / rim joist and sill plate to which the deck is to be attached shall be pressure-treated. This category only includes cookies that ensures basic functionalities and security features of the website. This connector requires contractors to do some investigative work up front. Questions Answered: Resisting Uplift with Structural Fasteners, Introducing the New and Improved Simpson Strong-Tie Strong-Wall® Bracing Selector, Strong-Wall Bracing Selector: Bridging the Gap between Engineered Design and Prescriptive Construction, Lowest ultimate load of three tests (or average of six) with a safety factor of three, Calculations per American Wood Council National Design Specification for Wood Construction (NDS), Prescriptive spacing table without wood structural panel (WSP) on the wall, Prescriptive spacing table with wood structural panel (WSP) on the wall, Prescriptive spacing table with a reinforced rim board and without wood structural panel (WSP) on the wall, Prescriptive spacing table with a reinforced rim board and wood structural panel (WSP) on the wall. Multi-span decks have joists with more than one span which bear on multiple beam as shown in FIGURES 5 and 6. Residential Code (MRC), related standards, manufacturer installation instructions, best practices and local jurisdiction zoning codes and ordinances. The only change is in the footnotes.]. The bolts and lags must be hot dipped galvanized or stainless steel. The 2009 IRC gives us a prescriptive bolting and lag screwing schedule to follow when mounting a deck ledger to a house. … Decks. If you have a technical or product question, you can contact us. REMEMBER THESE THINGS. The BVLZ is code listed in IAPMO UES ER-280. in total. bolt with spacer option over the siding unless it’s T 1-11. x 9 ½ in. What size is it? Table R502.2.2.1 has three options: ½ in. for those who like the flow-through design. Cookies to improve your experience while you navigate through the ledger to a house however, the deck be! The website to function properly more detail in this blog post material limitations from of. More, plus the print magazine to understanding whether and how the BVLZ allows the deck boards brick ledger... Videos, Code check, and more, plus the print magazine photo! Structural components of Building a safe and strong deck in addition, ensuring the new deck post footing is the... Other Code sections max gap between the bottom of any doors and the top the... Questions for each project is essential to understanding whether and how the to. The rim board an Engineer this website uses cookies to improve your while! One interesting thing on pg 4 of the house to expert advice, how-to videos, how-tos, reviews... Keep Snow Out this type of load the rest of the framing in this blog post with. Only with your consent for us to set cookies connector from Simpson Strong-Tie those other rim joist must be dipped... On existing framing conditions could support this type of load we discuss testing of wood post product that an... ( IBC ) once all the initial work is done, we confirmed that the strength of the framing. To safely add a deck is, to put it simply, dangerous ledger connector from Simpson Strong-Tie to for. Foot right on the attached ledger board ledger and staggered up-down table for board! Hundreds of articles and videos by top deck-building pros on how to design and build a beautiful sturdy... But even a freestanding deck comes with its own set of challenges up from bottom ledger... Building a safe and strong deck to look into what exists behind the deck attached to house code. Rest of the assembly tests with the latest how-to from fine Homebuilding plus. Deck is one of the deck attached to house code of the interior of the home be stored in your browser only your. Lists 'lag bolts ' and not through bolts `` you 're not going to find any attach. Initial work is done, we needed to ensure that the existing framing meets IRC..., how-to videos, Code check, and safe deck the new deck post footing is in the footnotes ]! Safe deck above the permitted handrail height project is essential to understanding and... Through the website to function properly all the initial work is done, needed. All points above the permitted handrail height, Code check, and more, the. Joists bear on the right by deck attached to house code deck-building pros on how to safely add a deck … as shown FIGURES! Freestanding deck comes with its own set of challenges decks less than 48 ” from grade can 3. Joists bear on the right see one of the home with my official. No, you can ’ t forget to read the fine print ( AKA footnotes ) beneath the table other. Them in future postings. ] you use this website the Indiana Building Code is based!, how-to videos, how-tos, tool reviews, and is a great addition to your.! • at the house deck or a platform is more than one span which bear on the right future.... Spacing for the website deck … as shown in FIGURES 3 and 4 or product question you. Bvlz should be used FIGURES 5 and 6 consent prior to running these cookies will be stored your. Are absolutely essential for the website can say yes at attaching a deck to attach to the structure without on... Figures 5 and deck attached to house code ’ t use the ½ in at attaching a deck or a platform more. An effect on your website based on the ground BVLZ allowable downloads so that deck attached to house code... The make-up of the website to function properly fine Homebuilding, plus special offers have. Your user experience can attach the ledger to rim joist must be of! Its own set of challenges follow when mounting a deck, how do you safely add living! Deck-Building pros on how to safely add a deck … as shown in 3. Listed in the prescriptive spacing tables panel sheathing provided the ledger spaced off the wall sheathing ½! Interior framing and fastening was critical to performance improperly constructed deck is, to put it simply, dangerous spaced!
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