MegaDome HHP Series Heavy Duty

The HHP (Heavy High-Performance) series is the MegaDome profile Building Depot specifies when a site sits in Sudbury, Timmins, Thunder Bay, North Bay or Sault Ste. Marie — where design ground snow loads routinely push past 4.0 kPa — or when the building will house a fertilizer blender, salt push-wall operation, truck-wash bay, stacker/conveyor or mining process line.

Compared to standard HP or XP, HHP uses tighter arch spacing and a heavier-gauge oval steel tube. That single change lifts snow, wind and unbalanced-load capacity without moving up to a full truss-arch DB or AR permanent frame — you keep the fast modular install schedule and the modular price point.

Clear spans run from 40 ft to 100 ft in 5 ft length increments. Sidewalls, gable ends, doors, ventilation, insulation and lighting packages are all field-configurable. Every HHP build ships with hot-dip galvanized steel frames and a heavy PVC membrane rated for the Ontario UV, snow and chloride environment.