I am building a small outbuilding (wood-fired sauna) that is 8 feet by 16 feet. The design is based off a friend who made a similar structure, just four feet shorter.
For the roof trusses, he used 2x6s for the top chords cut at 45 degrees (12:12 slope) and then a 2x4 braced to one side. This 2x4 sits on top of the walls' top plates. The nine total trusses will be at 24 inches OC. We live in southern Wisconsin in the US, so we see a fair share of snow but nothing like what they see even an hour north.
This avoids the birds mouth cuts, which is great, but I haven't seen anything like this in the internet research I've done -- most of what I've found uses birds mouths or something similar to the below picture (minus the king post), and always 2x4s for the top chords. Is my friend's design good enough to roll with or should I reconsider?