Adding a roof over a deck.
How to build a tin roof on a deck.
Building a roof over a deck turns this area into the best possible outdoor living space.
Typical decks are designed to support 55 psf lbs per square foot.
There are many advantages to a roof over your deck such as.
For example assume the porch measures 12 feet wide and 8 feet.
Build the frame of the roof on the ground.
Frame up a box the size of the outer dimensions of your deck using 2 by 4 inch lumber.
Mark the porch with a line parallel to the edge farthest from the house.
First mark all the purlin locations on the deck joists.
Check local building code to see if you can attach a patio roof directly to your deck.
Install the purlin along the house and the outer purlin.
Measure the porch to find the best length and width for a tin porch roof.
Mark the line 2 inches in from.
Porch decks require 25 additional psf for roof loads for a total of 80 psf.
Lower than the purlin along the house 12 x 1 4 3.
Building on an existing deck.
How to build a roof over a deck.
It provides shade and keeps your family dry during wet weather.
Then stretch a string between them.
Let the epoxy set leaving it overnight will assure that it is rock solid and then add the anchor bolt anchor washer and nut and tighten.
Tie your existing deck posts into the roof by extending your corner posts with the 4 by 4 lumber.
Installing a porch roof over an existing deck is usually not recommended unless the deck was originally designed to support a future porch.
How to build a tin roof over a deck.