Flat roofs are more susceptible to leaking than pitched roofs.
Flat roof over a deck.
Of roof decking costs 800 2 800 to install depending on the material you choose.
This is usually because low quality leak prone decking materials such as epdm rubber are used often in an effort to save money.
Another reason is the original design flaw implemented by architects and or builders who have no experience in flat roofing and do not have appropriate roofing technology to use.
Shed roofs project as a single plane roof pitched away from the house.
So rather than a roofing material like shingles that simply lets water run down it you need a roofing.
First you must make sure the roof is strong enough to support 55 lbs per square foot.
There are tons of reasons to build a deck over a roof from creating a romantic outdoor breakfast nook off a second floor master bedroom to providing a second floor porch on a city house.
On average 300 sq ft.
These decks are often referred to as floating as they are not secured in place as a stand alone structure.
When a roof is flat it actually will have a very slight slope water is going to spend a lot more time in one place giving it more time to find a way underneath the roof surface and into the structure.
A reliable roof membrane and details that minimize any damage to the roof from the deck loads.
For those who desire a bit more shade and privacy while soaking up the rays however a deck roof may be in order.
No matter the reason the keys to a long lasting deck above a living space are the same.
Building a deck on a flat roof is neither difficult nor time consuming.
If you are tying the roof directly to a house wall you can install a ledger board with flashing and install rafter ties to attach the rafters at the appropriate angles or use engineered trusses.
Before beginning however it is important to do two things.
Unfortunately many homeowners who have a flat deck roof have to deal with frequent leaks.
The key is in the word flat.
Two people can install a brand new deck in a weekend with little or no previous construction experience.
Most roof decks leak because they are typically made of flat roofing materials that were created over a century ago and were not designed for use as roofing for residential homes and living areas.
Build the frame of the roof on the ground.
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.
Frame up a box the size of the outer dimensions of your deck using 2 by 4 inch lumber.
