How To Support A Roof Deck

Blocking must be installed adjacent to the rim joist.

How to support a roof deck.

Pictures of roofs over decks. In some situations you may be able to use the home s structure to support an overhead above a deck. Adding a roof over an existing deck. 20 6x6 pt posts would be long enough to use as both deck support and roof support but the expense isn t justified because all that is needed to support the roof would be 4x4s.

To safely install a roof deck the roof needs to be able to support about 55 pounds of weight per square foot in general. While a typical deck is designed to support 55 pounds per square foot psf a roof requires 80 psf of support. 4 setting the rafters. The cost will vary depending on the professionals hired materials used square footage and weather conditions.

2 setting your ledger board. If the deck doubles as a porch it needs to be able to support no more than 80 psf. 1 check with your local building department and apply for any permits you will need. Adding a covered roof to your deck will typically cost between 3 000 10 000.

Installing a roof over an existing deck isn t recommended unless your deck was originally designed to support the roof. Covered decks can be made with either stand alone roofs or when the deck is adjacent to a building with a roof connected to the building. This is where the real planning began as the design of the roof would drastically effect the appearance of the finished deck. A 1 5 inch thick rim joist cannot support a 3 5 inch thick post above.

How do you build a roof over a deck. When bolting to the deck s structure be sure to use heavy duty galvanized lag screws that are long enough to penetrate the deck s framing by at least 2 inches. However this calculation can vary depending upon what you plan on. 5 attach sub fascia.

If you like the idea of having the roof above your house s roof you need to make sure the support posts are within 4 feet or so of the original gutter on that side. 3 building the support beam. Designing the deck roof. 2 fix these support posts to your decks original support frame bolts work well.

I have a client who wants a deck built approximately 10 off the ground with a roof. For deck roof posts dig holes for the roof posts and pour cement to keep them secure. Place pier blocks so that the posts will be against the inside of the support frame. 7 roof felt and shingles.

6 decking your roof. Porch decks also require larger footings than deck footings.