Flat roofs are more susceptible to leaking than pitched roofs.
Roof deck over angled roof.
Have no fear though.
Some shed roofs are designed to be nearly flat.
These decks are often referred to as floating as they are not secured in place as a stand alone structure.
If you are tying the roof directly to a house.
Since most roof decks are floating structures that sit on top of flat roofs it s crucial to weatherproof the roof below the deck to prevent water from seeping into the home.
Instead a pair of beams rest on supports called sill plates to create a frame for the 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.
How to build a shed roof over a deck.
Shed roofs project as a single plane roof pitched away from the house.
The deck roof of today isn t the drab concoction so many of us remember.
As beautiful as they are functional the modern deck roofs are an extension of and not a deterrent from the luxurious deck.
They are merely placed on top of another structure.
Building a deck over a flat roof is very similar to building a deck over a concrete patio.
Start here if you re building a roof over a patio or deck.
Always try to match the house roof pitch angle and overhang for your shed roof.
Roof deck framing unlike for decks at ground level doesn t entail a ledger attached to the rim joist of a house.
The roof must be able to support 55 pounds per square foot at a minimum.
First you must make sure the roof is strong enough to support 55 lbs per square foot.