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. Cdx plywood glued and screwed to the framing. Building a deck over a flat roof is very similar to building a deck over a concrete patio. 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. These decks are often referred to as floating as they are not secured in place as a stand alone structure.

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

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. Support posts should be spaced less than 8 apart and be located on top of properly sized frost footings. Where the roofing membrane meets the house run it 10 to 12 inches up the wall under the sheathing wrap. 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. Wood construction data 1. 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.

Position the square at the end of the rafter board with the tongue on your left and facing away from you. Download free high quality cad drawings blocks and details of roof and deck insulation organized by masterformat. Add the length of the overhang beyond this mark and. The roof sheathing is 3 4 in.

Our new smooth series cellular deck offers a blemish free beam to pan rivet. Details for conventional wood frame construction. First you must make sure the roof is strong enough to support 55 lbs per square foot. They are merely placed on top of another structure.

Deck flooring construction for rooftop decks.