I repair replace and build decks i do not notch my 4x post but when it is there already i like to use metal bracket on the two sides and if possible go underneath the deck and beef up the framework and add more support were i can the main idea in my opinion on rail system and support depends on how high the deck is.
How to frame a roof deck.
Half the 12 deck width is 6 which means a 2 rise.
The most common reason why people build roofs over decks is for protection from the sun and rain.
Building a deck over a flat roof is very similar to building a deck over a concrete patio.
Here are the top reasons why you ll want a roof for yours.
Adding a roof to your deck is best done as the deck is being built.
As a result most decks have inadequate footings to support a new porch roof.
I am working on a roof deck.
First you must make sure the roof is strong enough to support 55 lbs per square foot.
Reasons to build a roof over a deck.
Typical decks are designed to support 55 psf lbs per square foot.
If you choose to add a roof to an existing deck you may need to add additional supports so it can hold the weight of the roof.
Consider including an ice and water barrier too.
Protection from the sun and rain.
Frame up a box the size of the outer dimensions of your deck using 2 by 4 inch lumber.
With a width of 12 and a pitch of 4 12 that meant the ridge would have to be 2 higher than the eaves of the garage.
The most common styles are gable hip and shed.
As you can imagine there are plenty of benefits of building a roof over your deck.
Then run joists connecting the front of your roof with the rear every two feet along the length of your roof.
Build the frame of the roof on the ground.
The footings for porch decks must be larger than deck footings.
The best time to build a roof over your deck is during the construction of the deck itself.
If you have an existing deck it s possible to add a roof to it by installing additional supports.
The final answer was to build a regular roof with a ridge extending onto the garage roof.
These decks are often referred to as floating as they are not secured in place as a stand alone structure.
Porch decks require 25 additional psf for roof loads for a total of 80 psf.
They are merely placed on top of another structure.