Before installing a roof deck you must be certain the roof is stable and weatherproofed.
How to build a rooftop deck on a sloped roof.
My plan is to open up the roof and sit a couple of 4x4 posts on top of the outside wall.
The roof must be able to support 55 pounds per square foot at a minimum.
These decks are often referred to as floating as they are not secured in place as a stand alone structure.
One of the challenges in building a deck on a roof like this that s unlevel is the deck needs to be level.
A deck on a sloped roof requires a different approach to the framing underneath the joists.
On average 300 sq ft.
They are merely placed on top of another structure.
To provide drainage the panels should slope toward the outside edge of the deck about 1 4 in.
First you must make sure the roof is strong enough to support 55 lbs per square foot.
Roof deck framing unlike for decks at ground level doesn t entail a ledger attached to the rim joist of a house.
Building a deck on a sloped roof.
Building a deck over a flat roof is very similar to building a deck over a concrete patio.
Tie your existing deck posts into the roof by extending your corner posts with the 4 by 4 lumber.
Hardwood decking is then fastened to tapered pressure treated sleepers that rest on additional strips.
Of roof decking costs 800 2 800 to install depending on the material you choose.
Plan to space the 2x4 purlins parallel to the house and 3 ft.
In this article builder emanuel silva shares his method for building such a deck which begins with a leak proof low slope roof of epdm rubber.
Instead a pair of beams rest on supports called sill plates to create a frame for the deck.
The roof deck surface should sloped away from the house a minimum 1 8 inch per foot so the water will.
Epdm is the best choice for most rooftop decks.
Much of the work that s being done here is identical to what you would see on any deck built in a suburban backyard.
But the rooftop location does offer some unique challenges particularly in regard to the deck s foundation.
Building a deck above a porch roof allows for sheltered space below and views from above.
Some key details for a leakproof rooftop deck are.
How do i flash between post and roof.
Unfortunately many homeowners who have a flat deck roof have to deal with frequent leaks.
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.
How to build a deck roof.
By john fenton n b canada i want to build a deck on a sloped roof.
This is usually because low quality leak prone decking materials such as epdm rubber are used often in an effort to save money.
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.
