Then run joists connecting the front of your roof with the rear every two feet along the length of your roof.
Build gable roof over deck.
How to build a roof over your deck.
How to build gable roof over deck porch.
Porch decks require 25 additional psf for roof loads for a total of 80 psf.
Typical decks are designed to support 55 psf lbs per square foot.
Step 1 build the frame of the roof on the ground.
Next install the roofing drip edge and finish with roofing shingles.
Attach roofing felt to the plywood with roofing tacks.
Nail 2 boards onto your walls as top plates.
Frame up a box the size of the outer dimensions of your deck using 2 by 4 inch lumber.
Be sure to overlap the roofing felt 4 inches at all edges.
A gable roof also blends in well with many types of architecture.
When you nail in the second boards offset the seams of the upper and lower layers by at least 24 in 61 cm.
Building a gable roof over your existing deck will make it more comfortable providing shade and shelter from the rain.
This significantly sloped deck roof allows for proper drainage of rain and snow as opposed to a flat roof.
To provide for roof decking nail the sheeting pieces of inch plywood to the trusses.
Installing a porch roof over an existing deck is usually not recommended unless the deck was originally designed to support a future porch.
Always use professionally engineered roof trusses designed for the dimensions of your roof.
Use 8 penny nails to attach the first 2 in 4 in 5 1 cm 10 2 cm board to the wall studs.
Nail the first boards on top of your wall where you plan to build your roof.