How to build roof trusses?
in order to build roof trusses, you will need timbers cut to the size that equals the roof span and steel connector plates. Trusses will need a 2×4 brace to act as a support. Attach these trusses every 2 feet along the roof. Look here for more information: http://www.ehow.com/how_2239228_build-roof-trusses.