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An Unbiased View of Deck Safety Inspections Service in Oakland- Schafer

Lag screws should likewise be a minimum of -inch in size and have washers. Expansion and adhesive anchors need to also have washers. Deck ledgers ought to 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 incorrect.

In other cases, there is insulation in between the two boards. Even worse is when the siding or exterior finish system was not eliminated prior to the installation of the journal board. Situations like this, where the journal board and band joist are not in direct contact, substantially minimize 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. The image above portrays a hold-down stress gadget. The 2007 IRC Supplement needs hold-down tension gadgets at no less than 2 places per deck. Codes in some areas outright forbid connecting a ledger board to an open-web flooring truss.

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Caulking rather than flashing is utilized. The image above portrays a ledger board connected to hollow masonry. When the journal is connected to a hollow masonry wall, the cell should be grouted. https://jcdecks.com illustrates a journal board poorly supported brick veneer. Ledger boards need to not be supported by stone or brick veneer.

Stucco and EIFS have to be cut down so that journal boards can be connected directly to band joists; however, cut-back stucco and EIFS are challenging to flash and weather-proof. The image above portrays both over and under journal board flashing. The ledger board need to always be flashed even when the home or structure has a protective roofing overhang.

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Contact with pressure-treated wood or galvinized fasteners can lead to quick rust of aluminum. The image above portrays a deck journal connected to an overhang. Decks ought to not be connected to overhangs. The image above depicts appropriate framing around chimneys or bay windows that are up to 6 feet wide.