1011 EDWARDS AVE 2022-10-06 - Laserfiche WebLink

Section R507 Exterior Decks R507.1 Decks Wood-framed decks shall be in accordance with this section.Decks shall be designed for the live load required in Section R301.5 or the ground snow load indicated in Table R301.2(1),whichever is greater. For decks using materials and conditions not prescribed in this section,refer to Section R301. R507.2 Materials Materials used for the construction of decks shall comply with this section. R507.2.1 Wood Materials Wood materials shall be No.2 grade or better lumber,preservative-treated in accordance with Section R317,or approved, naturally durable lumber,and termite protected where required in accordance with Section R318.Where design in accordance with Section R301 is provided,wood structural members shall be designed using the wet service factor defined in AWC NDS. Cuts,notches and drilled holes of preservative-treated wood members shall be treated in accordance with Section R317.1.1.All preservative-treated wood products in contact with the ground shall be labeled for such usage. R507.2.1.1 Engineered Wood Products Engineered wood products shall be in accordance with Section R502. R507.2.2 Plastic Composite Deck Boards,Stair Treads,Guards,or Handrails Plastic composite exterior deck boards,stair treads,guards and handrails shall comply with the requirements of ASTM D7032 and this section. R507.2.2.1 Labeling Plastic composite deck boards and stair treads,or their packaging,shall bear a label that indicates compliance with ASTM D7032 and includes the allowable load and maximum allowable span determined in accordance with ASTM D7032.Plastic or composite handrails and guards,or their packaging,shall bear a label that indicates compliance with ASTM D7032 and includes the maximum allowable span determined in accordance with ASTM D7032. R507.2.2.2 Flame Spread Index Plastic composite deck boards,stair treads,guards,and handrails shall exhibit a flame spread index not exceeding 200 when tested in accordance with ASTM E84 or UL 723 with the test specimen remaining in place during the test. Exception:Plastic composites determined to be noncombustible. R507.2.2.3 Decay Resistance Plastic composite deck boards,stair treads,guards and handrails containing wood,cellulosic or other biodegradable materials shall be decay resistant in accordance with ASTM D7032. R507.2.2.4 Termite Resistance Where required by Section 318,plastic composite deck boards,stair treads,guards and handrails containing wood, cellulosic or other biodegradable materials shall be termite resistant in accordance with ASTM D7032. R507.2.2.5 installation of Plastic Composites Plastic composite deck boards,stair treads,guards and handrails shall be installed in accordance with this code and the manufacturer's instructions. R507.2.3 Fasteners and Connectors Metal fasteners and connectors used for all decks shall be in accordance with Section R317.3 and Table R507.2.3. TABLE R507.2.3 FASTENER AND CONNECTOR SPECIFICATIONS FOR DECKSa,b 2C '