First you must make sure the roof is strong enough to support 55 lbs per square foot.
How to frame a deck roof.
Place pier blocks so that the posts will be against the inside of the support frame.
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.
These decks are often referred to as floating as they are not secured in place as a stand alone structure.
Be sure that the deck floor frame is at least as thick as the entire cross section of the post above and below.
Before you begin make sure you re matching the house roof pitch angle and overhang for your roof.
Building a deck over a flat roof is very similar to building a deck over a concrete patio.
These are used to attach the support posts to the frame of the deck.
Step 1 build the frame of the roof on the ground.
For a solid connection you ll have to make sure the frame has the appropriate blocking.
If the posts supporting the roofs are placed directly on the deck structure below there are a few considerations to make.
Frame up a box the size of the outer dimensions of your deck using 2 by 4 inch lumber.
They are merely placed on top of another structure.
2 fix these support posts to your decks original support frame bolts work well.