We continue with our pictorial discussion of trusses which started with Know Your Enemny #44, Previous units are archived.
Photo By Frank Brannigan
Photo R244 - This structure shows the value of trusses. To build a conventional building this wide would have required heavy roof beams or bothersome interior columns. The walls would need to be much heavier to carry the weight of the long rafters. The truss provides clear spans at low cost. Know your buildings and use the thermal imager (Firefighter
