Roof Deck Framing Details

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.

Roof deck framing details.

Position the square at the end of the rafter board with the tongue on your left and facing away from you. The roof sheathing is 3 4 in. At outside edges leave a 3 to 6 inch flap depending on the edge treatment. 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.

The roof deck should be properly flashed with a. 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. Details for conventional wood frame construction. The first approach to achieving a strong durable struc ture involving economical use of materials is to follow a basic modular plan for layout and attachment of framing members.

Fiber roof underlayment as a final substrate. Measure form the top of this line down the board to determine the line length or length of the rafter less the ridge. Cdx plywood glued and screwed to the framing. Terminations and flashings for rooftop decks.

They are merely placed on top of another structure. R1 roof framing r2 joist and rafter detail r3 roof framing isometric view r4 heel joint connection detail. Building a deck over a flat roof is very similar to building a deck over a concrete patio. Rafters should be attached to the header beam using hurricane ties.

Download free high quality cad drawings blocks and details of roof and deck insulation organized by masterformat. Where the roofing membrane meets the house run it 10 to 12 inches up the wall under the sheathing wrap. Our new smooth series cellular deck offers a blemish free beam to pan rivet. Add the length of the overhang beyond this mark and.

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. Wood construction data 1. Support posts should be spaced less than 8 apart and be located on top of properly sized frost footings. First you must make sure the roof is strong enough to support 55 lbs per square foot.

A large metal drip edge usually caps the roof along the fascia boards.