Find the square footage of your roof and multiply this by your.
How to support ridge beam in a gable roof.
Typically the roof beam is made by nailing together a few pieces of dimensional lumber.
You will need a roof beam as a nailing surface to support the rafters.
Ridge beams are required by code if the roof slope is less than 3 in 12 irc section r802 3.
The formula for determining the finished height of the ridge beam from the top of the slab to the top of the ridge beam is.
Once again you will need to look at your local charts and use your local snow load factor to determine the maximum span for a given wood rafter size.
Move about halfway down the roof and repeat with a third set of rafters to provide support for the middle of the ridge board.
The ridge must support approximately one third of the weight of the roof the other two thirds are supported by the side walls.
Framing in a ridge beam in shed roof construction is not hard.
Step 5 raise the ridge board and nail to the rafters on the marked lines.
A ridge beam is a structural member used to support the ends of the rafters at the ridge transferring it s loads to posts or gable end walls.
Here s a picture of a gable style shed using a ridge beam.