Where the porch roof extended over the shed roof we installed a 2x6 ridge that ran from the top of the.
Addition with different roof pitch.
Before you start you should have an engineer or architect verify the structural integrity of your home.
If you know the pitch of a roof you can use the numbers in the following pitch table to do the following.
This roof pitch table displays a multiplier for adding for different roof pitches.
But it is important that the roof pitch is exactly the same as the existing roof because you will see it from one roof to the other if it isn t.
When matched to the angle and proportions of other rooflines on the house your gable roof will add visual interest and character to the home making the addition look like an asset that belongs with the house.
How to find your what roof pitch category.
With this method and a framing square you can join roofs of different pitches and still have perfectly aligned equal width soffits a builder describes how he uses a framing square and full scale layout to solve this tricky problem.
You re going to want the pitch of your new roof to be steeper than that of the old roof.
With the roof pitch the same it doesn t matter if the new addition is slightly off in height or lined up front to back because you re going over or under the old roof.
If you choose a simple trussed roof or addition with two angled planes that will be the easiest project.
Determine how many square feet of roof area a building has by measuring from the ground.
Roof pitch refers to the amount of rise a roof has compared to the horizontal measurement of the roof called the run.
Rather than a single slope a gable roof consists of two slopes that meet at a peak running down the middle of the roof.
And this is a project best saved for dry weather.
To keep the porch roof framing as simple as possible we installed a structural ridge.