Tom,
I searched the web for truss calculators and found several that give you the the corrected angles and lengths required. The two truss builders I have locally were going to frame a standard truss from 2x4's, the overall length would be 28ft with a 3/12 pitch. I had thought of using 2x6's for construction but the cost almost doubles. Given that the overall roof load will only the roof panels, trim and hardware and a 26 gauge panel is 0.88 lbs per sq foot I believe 2x4's 24in on center will be more than sufficient.
The last snow that had any accumulation here was in 1989, that was 2 inches. For me the main concern is the wind rating and hurricane fasteners required by code. We are required to add steel strapping to the trusses at the point where they meet the top plates every 48 inches. I lean toward the side of caution and will more than likely double up on the requirements and add strapping on each truss.
I have several sheets of 1/2in plywood left from another project and considered using these to form an actual pattern for the trusses, I think it will aid in keeping my framing uniform. I will be ordering the lumber this week so I will need to make a decision.
Last edited by TUTS 59; 05/24/2022 12:23 PM.
