Girdered Roof Deck

Have no fear though.

Girdered roof deck.

As a result most decks have inadequate footings to support a new porch roof. As beautiful as they are functional the modern deck roofs are an extension of and not a deterrent from the luxurious deck. The footings for porch decks must be larger than deck footings. Indeed even when the deck is to be adjacent to the house an alternative construction method is to use a second post and girder system rather than tying the deck directly to the house via a header board.

Typical decks are designed to support 55 psf lbs per square foot. Porch decks also require larger footings than deck footings. For those who desire a bit more shade and privacy while soaking up the rays however a deck roof may be in order. The bigger you make your deck the more you ask of the framing timbers that hold up the deck s structure and the joists and beams that support the.

Other innovations include n 32 a 32 wide 3 deep roof deck panel and our new smooth series rivet attachment for our portfolio of cellular deck products. First to the west coast market our new smooth series rivet attachment offers a. While metal deck can be produced in any material thickness between 16 and 22 special gauging will make the deck much more difficult to source. Cantilevered beams are stronger than flush style beams because they rely on the strength properties of the wood rather than the individual mechanical and fastener.

This type of steel roof deck has a 6 pitch and is available in a 22 20 or 18 gauge. Fasten the spacers points up to two beam lengths with 1 1 4 inch screws. Cut pointed spacers from a sheet of 1 2 inch pressure treated plywood the points prevent rainwater from sitting on the plywood and soaking in. The deck roof of today isn t the drab concoction so many of us remember.

This type of steel roof deck is available in prime painted and a galvanized finish. If the roof is attached to the deck it needs to be able to support the weight. Keeping water out from between the segments of built up deck beams can substantially increase the life of the structure. 2 deep roof deck and has since replaced the previous industry standard 36 5 and 36 7 attachment patterns.

Recommended beam joist spans for deck framing. Decks typically are designed to support 55 pounds per square feet or psf of weight. If the deck doubles as a porch it needs to be able to support no more than 80 psf. Obviously the time to make this decision is before nailing the deck flooring in place.

Deck girder flashing tip. Many porches use 22 diameter corner and intermediate. Porch decks require 25 additional psf for roof loads for a total of 80 psf. Attach the spacers at 16 inch intervals.