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. Providing resources, tools, and technical assistance to cities, counties, and local … Prescriptive Deck Details (Based on the 2012 International Residential Code) Georgia Department of Community Affairs . Start your subscription today and save up to 52%. That includes new requirements for deck construction — but when it comes to decks… Typically, the materials used in steep-slope applications serve to shed water and they are prone to moisture entry if exposed to standing … A copy of this document … Become a member and get instant access to thousands of videos, how-tos, tool reviews, and design features. (Source AWC.org). is shown in Figure 3. The ledger connection is especially difficult when the deck ledger is attached to the side of the truss because only the … 2012 IRC SECTION R302.2.2 Where Fire Retardant roof sheathing or 5/8 type X gypsum board is used at a firewall, no penetrations are allowed thru the material. Connecting communities to funding sources to help build capacity and encourage economic development while honoring the community’s past through historic preservation attached/uncovered deck to an existing structure using constructions methods compliant with the 2012 IRC Code. The American Wood Council document, called “The Prescriptive Residential Wood Deck Construction Guide” (available for download at this link) is an enormously helpful way to sort through the 2012 IRC, which is the operative code today. Back to Browse Year 2000 - 2015 IRC Egress Codes. Fastener Requirements for asphalt shingle roofs: Rim joists have their own requirements for how they are attached to deck joists. Drive fasteners through the rim joist into the ends of the joists with three 10d thread screws, or three #10 3-inch approved wood screws, see Figure 4. 60 Executive Park South, N.E. 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). The footings at the end of a beam can be smaller than mid-span posts (see Table 4 footnote 2). A copy of this deck detail must be on the job site and available to the inspector during each required inspection. 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) … The Footing Size table (Table 4) is expanded to include maximum post height based on beam and joist span. The provisions of this code are not intended to prevent the installation of any material or to prohibit any design or method of construction not … This drawing shows the required nailing schedule for fastening rim joists to joists, and deck board to rim joists. In the 2012 IRC, the prescriptive "allowable bolting regions" are applied to the band joist … Note the joist hanger minimum vertical capacity (measured in Lbs.) There are new lateral load connection details for I-joists and house joists perpendicular to the deck joists. Atlanta, Georgia 30329-2231 (404) 679-3118 . A 2x10 ledger on a 2x10 band joist allows a maximum 3/4-inch step down from house to deck. There are numerous recommended ledger board attachment methods recommended in the Guide, but there three others worth highlighting, and those are the ledger board attachments that are prohibited: All screws, bolts, washers, nuts, and nails used with treated wood must be either hot-dipped, zinc-coated galvanized steel, stainless steel, silicon bronze, or copper. 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. Decks shall be attached to the building wall in accordance with this section or shall be free-standing per Section R507.10. Commercial decks attached to multi-family buildings, such as apartment buildings or businesses, are regulated under the International Building Code (IBC). Local Government Assistance. Publications. Wood-framed decks shall be in accordance with this section or Section R301 for materials and conditions not prescribed herein. 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