I don t know how this would stand up to being used as a deck to be regularly walked on though.
How to slope a roof deck.
I had tapered insulation installed a few years ago on a flat roof on a house i used to own.
Lower than the purlin along the house 12 x 1 4 3.
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.
It was installed on top of the existing roof and then new hot rolled asphalt roofing installed over that.
Brhans jul 24 17.
We were able to make new crickets to the existing roof membrane providing positive water flow to the drains.
If the span under your deck is 12 ft for example the purlin at the outer end of the deck should be 3 in.
How to build a deck above a slope roof step 1.
Roof pitch refers to the measurement of the slope of a roof and you express this as a ratio.
Match roof material and use appropriate slope match the roofing on the covered porch with the main roof.
Roughly 1 16 1 5mm per foot a timbertech deck should be sloped.
Then we were able to correct the owner s ponding water concerns.
To provide drainage the panels should slope toward the outside edge of the deck about 1 4 in.
Although there s isn t any standard pitch of a roof used on all kinds of sloped roofs you can determine the range of pitches by using a roof angle calculator and by considering factors like the local climate and roofing materials.
To aid water run off the deck should slope 1 2 for every 8 away from the house.
Obtain the requirements for a deck above a sloped roof from your jurisdiction s permits office.
Timber tech installation guide.
A standard 12 3 6m deck dropping 18mm from the house to the edge of the deck.
Building a deck above a porch roof allows for sheltered space below and views from above.
Timber tech composite decking is one of them.
For an 8 0 deep deck you should use a minimum slope of 1.
Determine the minimum slope of the roof based on the roofing material.
The minimum pitch for.
Roof slope created a simple and great fix to a project were crickets were missed and ponding water became an issue for an owner.
Cut four 1 foot lengths of 2 by 6 lumber for your sill plates which act as bases to support each end of a pair.