Deck Inspection Resources (2020) - VBCOA
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A Biased View of Pool-Spa-Deck Inspection
Lag screws should likewise be a minimum of -inch in diameter and have washers. Growth and adhesive anchors must also have washers. Deck ledgers should be of a minimum of 2'x 8' pressure-treated wood. Ledger Board and Band Joist Contact: The image above portrays washers being used as spacers in between the journal board and band joist, which is inaccurate.
In other cases, there is insulation in between the 2 boards. Even even worse is when the siding or exterior finish system was not eliminated prior to the setup of the journal board. Circumstances like this, where the ledger board and band joist are not in direct contact, significantly decrease the strength of the ledger connection to the structure and are not recommended by Inter, NACHI, unless the 2 members are sandwiching structural sheathing.
All through-bolts should have washers at the bolt head and nut. https://postheaven.net/oilmiddle43/deck-safety-check-program-buildings-city-of-cincinnati portrays a hold-down stress gadget. The 2007 IRC Supplement needs hold-down stress devices at no less than two places per deck. Codes in some areas outright forbid connecting a ledger board to an open-web flooring truss.
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Caulking instead of flashing is utilized. The image above portrays a journal board connected to hollow masonry. When the journal is attached to a hollow masonry wall, the cell ought to be grouted. The image above depicts a journal board poorly supported brick veneer. Journal boards must not be supported by stone or brick veneer.
Stucco and EIFS have to be cut down so that ledger boards can be connected directly to band joists; however, cut-back stucco and EIFS are tough to flash and weather-proof. The image above illustrates both over and under ledger board flashing. The ledger board ought to constantly be flashed even when the home or building has a protective roofing overhang.
Contact with pressure-treated wood or galvinized fasteners can result in quick deterioration of aluminum. The image above illustrates a deck journal connected to an overhang. Decks should not be connected to overhangs. The image above portrays correct framing around chimneys or bay windows that depend on 6 feet broad.
