Tie your existing deck posts into the roof by extending your corner posts with the 4 by 4 lumber.
How to extend gable roof over deck.
On roof then posts.
Knowing how to build a gable roof over a deck will not only save you money it will also enhance the beauty of your home.
Make the front of the roof the height of the house roof you are presumably tying into with the rear sloping at a rate of six inches over two feet.
Make your deck a luxurious living space protected from the weather.
Follow these steps to build one of these functional roofs yourself.
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Typical decks are designed to support 55 psf lbs per square foot.
Building a gable roof over your existing deck will make it more comfortable providing shade and shelter from the rain.
Porch decks require 25 additional psf for roof loads for a total of 80 psf.
Installing a porch roof over an existing deck is usually not recommended unless the deck was originally designed to support a future porch.
Although this project may seem like a real challenge with the right tools materials and some basic building skills it can be accomplished in 2 or 3 weekends.
The gable design of the roof will also allow for excellent rain and snow runoff in wet climates.
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