Building a gable roof over your existing deck will make it more comfortable providing shade and shelter from the rain.
Build gable roof over deck.
Porch decks require 25 additional psf for roof loads for a total of 80 psf.
Step 1 build the frame of the roof on the ground.
Paint your gable roof as required.
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.
Gable roof the most common type of deck roof the gable roof forms a triangular shape projects along a ridge down the center of the deck and overhangs the enclosed space.
Then run joists connecting the front of your roof with the rear every two feet along the length of your roof.
How to build a roof over your deck.
This significantly sloped deck roof allows for proper drainage of rain and snow as opposed to a flat roof.
Installing a porch roof over an existing deck is usually not recommended unless the deck was originally designed to support a future porch.
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.
How to build gable roof over deck porch.
To provide for roof decking nail the sheeting pieces of inch plywood to the trusses.
When you nail in the second boards offset the seams of the upper and lower layers by at least 24 in 61 cm.
Nail 2 boards onto your walls as top plates.
A gable roof also blends in well with many types of architecture.
Attach roofing felt to the plywood with roofing tacks.
Always use professionally engineered roof trusses designed for the dimensions of your roof.