can someone explain to me what this means? Guess I am trying to order insulation supplies….
Trusses: Clear span factory engineered to 4’ OC., 4/12 pitch, 42-5-5 snow loading
-Purlins/Bracing: 1 row of 2x8 treated bottom purlins, 2x4 wall purlins, single 2x6 top ribbon, 2x4 roof purlins, 2x6...