Dormer Framing / Truss Design
Dormer Framing / Truss Design
(OP)
This is definately a basic question. But does anyone have a truss design of a basic dormer they can post? I just started with truss design and am wondering what is standard. I am putting in 6' dormers. Do I put a flat girder across the 6' gap for framing weight, if so where do I put it? Sorry to bother with a beginner question...





RE: Dormer Framing / Truss Design
If the dormer is open then I suggest putting two girders along the length of the dormer, and either boxing in the dormer if it is short, or allowing them to field frame the overspan between the girders (you will need to drop the TC to allow them to properly frame this*). You will need to load these girders based on the additional framing material weight.
I find field framing between the girders to be easier than installing tall height box girders to carry stubbed trusses.
This is what we do in Texas in a non-hurricane area. We have near zero snow loads, light wind loads (in my area), and framing labor is cheap. So adjust for your area as needed.
* If you have Mitek Engineering then you will see what I mean when you give the truss a > 2' O/C spacing.
RE: Dormer Framing / Truss Design
RE: Dormer Framing / Truss Design
RE: Dormer Framing / Truss Design
RE: Dormer Framing / Truss Design
RE: Dormer Framing / Truss Design
Did you mean L/360?
RE: Dormer Framing / Truss Design