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 make roof deck.
Protection from the sun and rain.
Reasons to build a roof over a deck.
Here are the top reasons why you ll want a roof for yours.
They are merely placed on top of another structure.
Build the frame of the roof on the ground.
Porch decks require 25 additional psf for roof loads for a total of 80 psf.
The most common reason why people build roofs over decks is for protection from the sun and rain.
Then run joists connecting the front of your roof with the rear every two feet along the length of your roof.
It adds to the aesthetic appeal of the space.
There are many advantages to a roof over your deck such as.
Typical decks are designed to support 55 psf lbs per square foot.
The footings for porch decks must be larger than deck footings.
These decks are often referred to as floating as they are not secured in place as a stand alone structure.
First you must make sure the roof is strong enough to support 55 lbs per square foot.
It provides shade and keeps your family dry during wet weather.
Frame up a box the size of the outer dimensions of your deck using 2 by 4 inch lumber.
Building a roof over a deck turns this area into the best possible outdoor living space.
As you can imagine there are plenty of benefits of building a roof over your deck.
Building a deck over a flat roof is very similar to building a deck over a concrete patio.