Drifting snow can cause truss sag/damage

Structure · Trusses · printed page 80 (PDF page 81)

Original page Sign in to save

Book index entries

Roof – Sag or Damage Caused by Drifting Snow Truss – Sag or Damage caused by Drifting Snow Roof – Truss Trusses – Roof

Text in the illustration

where a higher roof is adjacent to a lower roof, drifting snow can create a concentrated load which may cause truss members to sag or break

Generated explanation

The illustration shows a tall gable-roofed house adjoining a lower, sloped-roof addition. A cutaway at the lower roof exposes its triangular truss framing. Snow is piled more deeply on the lower roof near the taller building, and a downward arrow indicates the concentrated load. The annotation explains that drifting snow at this roof-height transition may cause truss members to sag or break.