The pitch of these roofs can range from a minimum of 3 4 to very steep depending on local building codes.
Portico roof pitch.
The pitch of this roof is 4 8 12.
A gable roof is a traditional triangle shaped roof that can range from a medium pitch to sharp angled roofs.
48 10 4 8.
A 7 12 roof normally expressed as a ratio means that for every 12 inches horizontally the run your roof rises 7 inches.
Building a portico isn t as simple as throwing up a few columns and a roof.
So i set the angle on my miter saw to 22 5 cut two 2x4s and put them together.
We framed around the existing step.
It s crazy how a building a portico a little roof and two new columns can transform the front of a home.
After a quick google search i found that the angle of the cut on a 5 12 pitch is 22 5.
In our case for every 12 our roof goes down 5 or a 5 12 pitch.
However you can only use this pitch with built up roofing or specialized synthetic roofing.
The detached porch below has a metal hip roof.
They can be seen on many ranch homes and porches throughout the country.
Initially we were going to remove the cement step but decided that it was in decent shape and would provide a solid base for the new wider step so we left it.
Since pitch is the rise over a 12 inch run divide the run by 12 to get the multiplier in this case 120 12 10.
While the home s primary roof is a more steeply pitched hip roof the porch roof does not need to be the same pitch.
You ll want to consider the existing style of your home and choose a portico design that adds dimension highlights your home s front door and ups your home s curb appeal.
On this home the roof pitch is the same as that of the gables on the dormers.
By matching the pitch of the gables we were still consistent with the roof.
Rise and run for your porch roof your roof s slope also called pitch is determined by the rise and run.
Gable roofs are simple and fast to construct and usually offer more space beneath the roof itself.
A frame roof is the sharpest gable style roof resembling the shape of the letter a.
The calculator above can handle much of this math.
The minimum pitch for a roof is 1 4 12 which translates to 1 4 inch rise to 12 inches of run.
Pent roof is a collection of low mono pitched roofs often seen on residential terraces.
Here is the before.
Now divide the rise by the multiplier to get the pitch eg.