Take the measurements of the.
How to buil d a porch roof.
The rise and run of the roof is generally the replica of the main roof.
Cut 4 by 4 posts as long as you wish the height of the roof to be.
Step 2 drawing up plans.
Sheathing 1 2 inch plywood or osb is nailed to the rafters.
Install the header beam.
While making the measurements the location of the window on top of the place for the porch must be determined.
Start with ledger board mounting.
Construct a frame for the top of the posts.
Detailed guide mount the ledger header board and install the rafters.
Install temporary bracing to keep the support posts level and in place.
Make sure that the plans are accurate and go into enough detail.
You can place the columns outside the porch area or install them on the porch deck.
Just affix it to.
So your rafter length would be 311 4 inches.
Building a porch roof step 1.
We can use pythagorean theorem run2 rise2 c2 then find the square root.
Dig holes 18 inches.
But if it is not feasible due to.
Then taking the square root of 976 we get 31 24.
When building a porch roof asphalt shingles or other roofing material are then attached over the roofing paper and drip edge.
Use thru bolts for a solid and strong connection.
Decide on the rise and run of your porch roof.
Cut the cross pieces of the frame.
Measure two 2 by 8 pieces of wood the length of the porch and two 2 by 8.
After the measurements are done and lines are marked it s time to install the rafter plate.
Install the 2 2x10 header beams to the notched 6x6 support posts.
Your porch roof pitch should maintain the same pitch also known as rise and run as the other roof lines on your home or as a minimum the pitch of the roof directly above the porch roof.
Then attach drip edge over the roofing paper.
Remember that the location.
Notice that the tops of the 6x6 support posts are notched to hold the header beam.
The rise and run of the roof is generally the copy of the main.
Erect support posts for the roof.
You run the risk of detracting from the architectural style of your home if you don t do this.
Once completed roofing paper will be installed.
It s always a good idea to spend time planning the design of your porch roof before starting.
Also take a look for anything that could make attaching the roof difficult including power cables nearby trees and phone wires.
See exactly how i made a simple porch roof step by step.
In our example our porch roof would be 24 squared 576 plus 20 squared 400 which added together equals 976.
Install the support posts.
How to build a roof on a porch.