Every truss is made up of top chords, bottom chords, and internal webbing. The top chords form the slope of the roof and carry loads from shingles, rain, and snow. The bottom chords support the ceiling structure and help keep the walls from spreading. The webbing connects these parts and evenly distributes pressure throughout the truss. The triangular design is what gives Residenti... https://reitzelexteriors.com/residential-roof-trusses-complete-guide/