roof deck.-One layer of underlayment is required for roof slopes of 4:12 and greater.-If the roof slope is between 2:12 and 4:12, the underlayment must lap by 19", with the first strip being 19", then full size sheets.-If the roof slope is less than 2:12, modified bitumen may be used. The Guide, which is 44 pages, is worth reading in its entirety, because it explains and illustrates the code, but here below are seven key areas that every deck builder should be aware of. 2012 IRC SECTION R303 … The 2018 IRC reorganized R507 Decks which incorporated the many of the more useful illustrations and provisions to simplify the prescriptive construction of a deck. Users of the 2009 IRC version of DCA 6 will notice a few changes in the 2012 version including: The new DCA 6 version doesn’t have a commentary yet; but it’s its way. BCD302 – Prescriptive Residential Wood Deck Construction Guide (DCA6 - 2012 IRC Version) DCA 6 has been recently updated to include guidance on provisions in the 2012 International Residential Code … Most building officials recognize American Wood Council’s publications as providing ‘code-compliant’ information and practices; so when you use DCA 6 as your deck-building guide, you can be pretty sure there won’t be any snaggs when it comes time for inspections. is shown in Figure 3. Deck construction shall be capable of accommodating all vertical and horizontal loads in accordance with Section R301 … Deck construction shall meet the requirements of the 2013 Kentucky Building Code which adopts and amends the 2012 International Residential Code. Prescriptive Deck Details (Based on the 2012 International Residential Code) Georgia Department of Community Affairs . nominal. If the joists are lapped, … 2015_ircamendments.pdf. If you are curious why carriage bolts are not permitted for wood construction purposes – the presenters address it at 1:52 into the presentation. A drip edge shall be provided at eaves and gables of shingle roofs. Typically, the materials used in steep-slope applications serve to shed water and they are prone to moisture entry if exposed to standing … Exception: Design for lateral loads, and connectors in accordance with Section R507.3, shall not be required for decks that do not require guards in accordance with Section R312.1.1, provided that the deck … Decks must be constructed in conformance with the details contained herein. Based on the 2012 . Be careful if you are splicing 2X material to make-up the beam. Publications. My favorite guide for designing and building decks – the American Wood Council’s DCA 6 – has been updated to dovetail with the 2012 International Residential Code (IRC). AMENDED IRC -2012 IRC -2015 IRC -2018 Code for One- and Two-family Dwellings shall conform to Section P2940. The Joist Span table now includes 2x6s (though rim joists and ledgers must be minimum of 2×8). Connecting communities to funding sources to help build capacity and encourage economic development while honoring the community’s past through historic preservation The code also states that on roof slopes between 2:12 to 4:12 a double layer of underlayment must be applied over the structural deck. Insight on engineering and codes . x 6-in. Attaching the ledger board to the adjacent structure is a crucial connection because when it is done properly, the attachment prevents the deck from pulling away from the structure, which could lead to a dangerous, catastrophic failure. 1. A free guide from the American Wood Council offers a great quick-reference and easy-to-read explanation of the 2012 International Residential Code (IRC), with a special focus on single-level wood deck construction in residential homes. 2012 IRC Checklist & Summary Page 1 of 17 D:\Users\KMACK\Desktop\Checklists\Helena Checklists\Plan Review CITY OF HELENA BUILDING DIVISION * 316 N. PARK * HELENA, MONTANA * 406-447-8437 * www.helenamt.gov The issuance or granting of a permit shall not be construed to be a permit for, or an approval of, any violation of any of the provisions of this code … 2. 2. You can view the program slides at http://www.awc.org/pdf/education/20140522_webinar_dca6_2012ircversion.pdf. The State of Georgia is one of the early adopters of the 2012 International Codes: Georgia will start enforcing the 2012 International Building Code (IBC) and International Residential Code (IRC) next month. They may also be involved in inspection and retrofit activities related to residential wood decks… I can confidently say that I expect to be a life-long subscriber." Yes, but you must use an approved post cap, like that shown in Fig 1. 2012 IRC Deck Attachment. Free-Standing decks are referred to as “Non-ledger” deck. Once you have selected the size of your deck, use the joist and beam span tables to determine their size, spacing, span lengths and overhang dimensions. Plus, get tips for a clean and solid installation. Based on the 2012 International Residential Code This design document applies to single-span, single-level residential decks only. Sign up for eletters today and get the latest how-to from Fine Homebuilding, plus special offers. For a full USP catalog, visit here. These typical deck details are provided to ensure design and construction of decks … Only the end posts are braced. Connecting Deck Ledgers to MPC Wood Trusses. 2018_ircamendments.pdf. Window Well Experts » Egress Codes » 2012 IRC Egress Codes – Section 310. Zoning Requirements: Decks are also required to meet the land use and setback requirements of the zoning code. It is mainly based on the 2012 American Wood Council's standard, Design for Code Acceptance 6 (DCA-6) – Prescriptive Residential Wood Deck Construction Guide. © 2021 The Taunton Press, Inc. All rights reserved. A copy of this document … Appendix B provides an acceptable method of designing a deck, at the owner’s option. Note that DCA-6 is based on the 2012 International Residential Code. Figure 1: Use an approved post cap to attach beams to posts, and be sure to use the cap’s complete recommended nailing schedule. 2012 IRC Guidelines for Rails. Deck Construction Guide Based on the 2015 International Residential Code Where applicable, provisions and details contained in this document are based on the International Residential Code (IRC) … www.dca.ga.gov … (2012) The 2009 (IECC) Energy Code (2012) 2009 IRC Chapters 1 – 4 (Foundations, Design, Administrative & Definitions) (2012) 2009 – IRC Chapters 5 – 9 (Walls, Floors, Roofing & Finishes) (2012) 2009 IRC Specialty Trades (Masonry, HVAC, Plumbing, Electrical) Recommended Book: “Deck Construction” written by Glenn G.A. Where supported by attachment to an exterior wall, decks shall be positively anchored to the primary structure and designed for both vertical and lateral loads. CR200-01 Introduction to the 2012 International Residential Code (14) CR200-02 Introduction to the 2012 International Residential Code (35) CR203-01 '09 Residential Building Inspector (20) ... CR215-00 - 2018 IRC Deck … Atlanta, Georgia 30329-2231 (404) 679-3118 . - M.K. Is there an alternative to notching? May 21, 2012 #2 Keystone: It gets crazier with each edition of the codes… Use the remaining details to guide you in determining the other design … Atlanta, Georgia 30329-2231 (404) 679-3118 . Such attachment shall not be accomplished by the use of toenails or nails subject to withdrawal. Require - ments for reroofing specifically are addressed in Section 1510—Reroofing. The Hawaii State Building Code (2012 International Building Code (IBC) with amendments) and Hawaii State Residential Code (2012 International Residential Code (IRC) with amendments) were adopted on November 13, 2018 by the State Building Code Council.. Building Code Compliance Software for Hawaii. Where posts meet beams, the beams cannot be “sistered” along-side the post. SECTION R507 DECKS R507.1 Decks. Get home building tips, offers, and expert advice in your inbox. There is an exception that allows an … It is important to note that all … 2012 IRC for Ramps. In this episode of Shop Class, learn how to measure, cut, and build window casing made of cellular PVC, solid wood, poly-ash boards, or any common molding material. 2018 IRC Significant Changes to Deck Provisions 11 GENERAL REQUIREMENTS Alternative Materials and Methods –R104.11 An alternative material, design or method of construction shall be approved if the proposed design is satisfactory and complies with the intent of the code. Because of galvanic action, aluminum should not be used in direct contact with lumber treated with preservatives that contain copper (ACQ, Copper Azole, ACZA, or micro copper treatments). There’s a thorough DCA 6 walk-through video program produced by the American Wood Council available. Figure 3. Note the joist hanger minimum vertical capacity (measured in Lbs.) If there are four risers or more then there must be a handrail on at least one side. There are new lateral load connection details for I-joists and house joists perpendicular to the deck joists. CM201-04 Introduction to the 2018 IRC Mechanical Codes (3) CM206-01 Significant Changes to the 2018 IMC (4) CM201-05 Introduction to the 2018 IRC Mechanical Codes (7) Plumbing Codes. (Source AWC.org). What the Future Holds. Then the program turns to the NDS, some engineering talk , and how NDS is incorporated into the prescriptive measures of DCA 6 for another 45 minutes or so; and continues with Q&A for 30 minutes. It includes 2012 IRC building code requirements. Code requirements In the International Building Code, 2012 Edi-tion (IBC 2012) and its previous editions, roof systems are addressed in Chapter 15—Roof Assemblies and Rooftop Structures. Fire wall . Revised January 1, 2015 The latest version reflects requirements in the International Code Council’s (ICC) 2012 International Residential Code (IRC) and other provisions pertaining to single-level residential wood deck construction. D. dhengr Bronze Member. CR215-00 2018 IRC Deck Construction; CR203-04 IRC Inspection Essentials - Foundation to Final (7) CR217-00 2018 IRC Alterations, Renovations & Additions (3) CR218-00 Residential Concrete & ACI 332 Requirements (4) CR206-08 Significant Changes 2012-2018 IRC (7) CR200-01 Introduction to the 2012 International Residential Code (14) Overview. Synopsis: In this article, Mike Guertin takes an in-depth look at prescriptive deck-building codes when it comes to one of the deck’s most basic components: joists. Where supported by attachment to an exterior wall, decks shall be positively anchored to the primary structure and designed for both vertical and lateral loads. Prescriptive Deck Details Based on the 2012 International Residential Code This design document applies to single-span, single-level residential decks only. Appendix B provides an acceptable method of designing a deck, at the owner’s option. International Residential Code (IRC) 2012 Edition. Figure 4. PROPOSED CODE CHANGE Exception: Design for lateral loads, and connectors in accordance with Section R507.3, shall not be required for decks that do not require guards in accordance with Section R312.1.1, provided that the deck ledger is connected to the band joist in accordance … Deck boards must be attached to rim joists in a prescribed method as well; also seen in Figure 4. Joined Feb 23, 2010 Messages 969 Location Lehigh Valley, Pennsylvania. If you have a 12-in. A copy of this deck … A copy of this deck detail must be on the job site and available to the inspector during each required inspection. Adjacent pieces of drip edge shall be overlapped a minimum of 2 inches (51 mm). Community Development Division . The joist hanger minimum vertical capacity (measured in Lbs.) Each splice must occur over an interior post. Exception: Reroofing shall not be required to meet the minimum design slope requirement of one-quarter unit vertical in 12 units horizontal (2-percent slope) in Section R905 … Get complete site access to expert advice, how-to videos, Code Check, and more, plus the print magazine. 2015_ircamendments_precriptivedecks.pdf. Code Reference 2018 International Residential One and Two Family Dwellings Code gt gt Section R507 Exterior DecksGround Level Floating Decks and Patios A permit is not required if The proposed deck is not permanently attached to your home or any structure by way of band boards. City is consistent and code compliant. www.dca.ga.gov . code as originally issued, with changes reflected in the 2009 through 2012 editions, and further changes developed through the ICC Code Development Process through 2013. Ramps must have a maximum slope of one inch per foot. Deck boards must be secured to the top of the rim joist with 10d thread screws, or #10 3-inch approved wood screws, 6 inches on center. Back to Browse Year 2000 - 2015 IRC Egress Codes. These building codes for handrails on stairs and guardrails around walkways are based on information in section R311.7.8 on page 61 of The 2012 International Residential Code. Deck ledger … joists ranging from 2x6 to 2x12. Wood-framed decks shall be in accordance with this section or Section R301 for materials and conditions not prescribed herein. The 2015 International Residential Code (IRC) came out last June and the section specifically covering decks (R507) is now up to 6 1/2 pages - the 2012 IRC only has 2 1/2 pages. Method as well ; also seen in Figure 4 approximately 7 ¼ inches, minimum to make-up beam... I can confidently say that I expect to be completed/fulfilled as required by city! Than mid-span posts ( see Table 4 based on the wall or beam get instant access to expert advice how-to... 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