It turned out really beautiful but the flashing isn t done correctly.
How to overlap metal to add porch roof.
When the panel is laying flat on a surface the side that touches flat is the underlap side.
We re going to do a pitch transition or change.
Paint or prime cut edges to prevent.
Take care the first piece is aligned precisely perpendicular square to the edge.
1 x research source the fastest option.
It s quick easy low cost and you can do it yourself.
In other words you need to make absolutely sure that every square foot of the roof is covered in metal and that means making sure all the edges are fully covered.
Divide the square footage of your roof by 18 to give you the number of sheets you ll need.
Corrugated roofing is a great way to top a garden shed shop or patio.
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You ll have a steeper part of your roof turning into a lower slope so there s a steeper pitch up top and a lower pitch on the bottom.
Take your first sheet of metal and place it on the roof so that it overhangs the edge at least 3 4 in 1 9 cm.
Measure the length of the roof and the breadth of one side.
The opposite end the overlap side will be elevated slightly above the surface.
Add the metal panels.
You only need some basic tools and materials.
You will use metal roofing screws to secure the metal panels to the sheathing.
We need to do something where that change happens so the panels can go down and water can come off hit the lower slope and come off the roof.
This build is a porch addition on an existing metal building home.
Corrugated metal roofing generally comes in sheets that are 3x6 feet in size 18 square feet.
Try to space the screws about 12 inches apart down the entire piece of metal.
After a taking some measurements and doing a bit of ciphering we established that the steepest pitch we could use on the porch roof was 4 in 12.
Align the first metal roofing panel so that it overlaps the edging by 1 2 to 3 4 of an inch and is square to the roof.
Be sure the larger edge is laid so that the small edge of the next panel will overlap it.
Multiply those numbers and then double the result for the square footage of your roof.
We will be depending.
Wear hearing and eye protection.
We wanted to make the porch roof as steep as possible while keeping the peak of the roof below the wall to roof intersection at the top of the shed roof.
When laying the metal panels on the roof the overlap ridge of the new panel should straddle the underlap ridge of the panel before it.
