Roof Deck Framing Details

Building a deck over a flat roof is very similar to building a deck over a concrete patio.

Roof deck framing details. Our new smooth series cellular deck offers a blemish free beam to pan rivet. 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. Where the roofing membrane meets the house run it 10 to 12 inches up the wall under the sheathing wrap. 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.

Position the square at the end of the rafter board with the tongue on your left and facing away from you. They are merely placed on top of another structure. Rafters should be attached to the header beam using hurricane ties. R1 roof framing r2 joist and rafter detail r3 roof framing isometric view r4 heel joint connection detail.

The roof deck should be properly flashed with a. These decks are often referred to as floating as they are not secured in place as a stand alone structure. Download free high quality cad drawings blocks and details of roof and deck insulation organized by masterformat. Wood construction data 1.

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. First you must make sure the roof is strong enough to support 55 lbs per square foot. 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. Deck flooring construction for rooftop decks. 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. A large metal drip edge usually caps the roof along the fascia boards.

Add the length of the overhang beyond this mark and. 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. Terminations and flashings for rooftop decks. Cdx plywood glued and screwed to the framing.

At outside edges leave a 3 to 6 inch flap depending on the edge treatment.