For areas with attic space above flat ceiling ceiling joists are included but the remainder of the ceiling system above is by owner contractor.
Post and beam roof design.
Click ok to close the floor beam defaults then set the placement to under joists.
Let s consider a basic gable wood roof framing design.
Floor beam span tables of residential structural design we will now look at roof rafter and beam design.
Here we have a wood framed gable roof.
Continuing on from part 3.
The first roof area is constructed with heavy timbered components that are secured to the ridge beam and second floor beams.
Exposed ridge beam collar ties or purlins for cathedral areas as required and 6x8 douglas fir plate beams typically 2x12 spruce rafters 2 o c.
Use rope to raise the board if the beam placement is high and the board is very heavy.
In this example 5 inches will be used for both.
On the posts panel click the edit post defaults button and set both width 1 and width 2 to match the beam width of 5.
And cdx fir plywood.
Go over to the board end on the ground walk this up a ladder attach rope to it and tie this to its post.
First roof area assembly.
One of the major choices in designing your post beam home is the selection of a roof style and whether or not you want verandahs.
Under the general panel of the floor beam defaults dialog set the depth and width of the beam.
Roof designs for a post beam home.
These timbers are then tied together with collar ties the horizontal members and gusset plates the metal fasteners as you can see in the photo below right.
Post and beam home design.
The image below shows a cross section of our simple 12 x 13 house from the joist span tables section of this tutorial.