Roof Deck Framing Details

Wood construction data 1.

Roof deck framing details.

Cdx plywood glued and screwed to the framing. They are merely placed on top of another structure. Details for conventional wood frame construction. Support posts should be spaced less than 8 apart and be located on top of properly sized frost footings.

The roof sheathing is 3 4 in. Add the length of the overhang beyond this mark and. Fiber roof underlayment as a final substrate. These decks are often referred to as floating as they are not secured in place as a stand alone structure.

Rafters should be attached to the header beam using hurricane ties. Measure form the top of this line down the board to determine the line length or length of the rafter less the ridge. Building a deck over a flat roof is very similar to building a deck over a concrete patio. Deck flooring construction for rooftop decks.

First you must make sure the roof is strong enough to support 55 lbs per square foot. At outside edges leave a 3 to 6 inch flap depending on the edge treatment. A large metal drip edge usually caps the roof along the fascia boards. Position the square at the end of the rafter board with the tongue on your left and facing away from you.

The roof deck surface should sloped away from the house a minimum 1 8 inch per foot so the water will drain and not pond the finished walking surface of the roof deck surface should be below the level of the interior floor by at least 1 1 2. Nl3 corner framing detail nl4 slammer stud detail nl5 window opening framing detail nl6 door opening framing detail nl7 non load bearing opening nl8 non load bearing wall parallel to joist roofs rafters joists. Download free high quality cad drawings blocks and details of roof and deck insulation organized by masterformat. If you are tying the shed roof into an existing roof on the house you will need to remove the shingles and sheathing to expose the roof framing.

The roof deck should be properly flashed with a. To create a smooth surface and to protect the bottom of the rubber roofing from any fasteners or rough edges on the plywood i installed 1 2 in. R1 roof framing r2 joist and rafter detail r3 roof framing isometric view r4 heel joint connection detail. Such methods use a 4 foot design module which governs a 16 inch spacing of joists studs rafters.

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