Flat roofs are more susceptible to leaking than pitched roofs.
How to build a gable roof over a deck.
Porch decks require 25 additional psf for roof loads for a total of 80 psf.
Start here if you re building a roof over a patio or deck.
Follow these steps to build one of these functional roofs yourself.
If you are tying the roof directly to a house.
Shed roofs project as a single plane roof pitched away from the house.
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.
The gable design of the roof will also allow for excellent rain and snow runoff in wet climates.
A gable roof also blends in well with many types of.
Always try to match the house roof pitch angle and overhang for your shed roof.
Some shed roofs are designed to be nearly flat.
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Building a gable roof over your existing deck will make it more comfortable providing shade and shelter from the rain.
This significantly sloped deck roof allows for proper drainage of rain and snow as opposed to a flat roof.
Installing a porch roof over an existing deck is usually not recommended unless the deck was originally designed to support a future porch.
How to build a shed roof over a deck.
This article discusses strategies for building over an existing slab patio or over a deck and offers links to articles about the specific tasks such as pouring the footings raising posts and so forth.
Typical decks are designed to support 55 psf lbs per square foot.