Apprentice Training, specialty

Green Roof Drain Inspection Chamber & Ballast Stop

12x12 in perforated stainless steel chamber, removable locking lid, 4 in aluminum gravel stop edge trim

Removable locking lid, 4 in aluminum gravel stop edge trim Pre-planted 4 in depth interlocking poly trays with root barrier slip sheet

Time: 1 h 30 min
People: One
Level

Before you start

Clear 2 × 2 m of floor and lay out the parts.
12 parts and 9 fasteners in 6 steps.
You'll want a screwdrivers and a flat screwdriver and a spanners and a tape measure and a drill and a spirit level and a trimming knife.
Keep fine engineered planting soil from entering the inspection chamber; fines will quickly plug roof drains.
Never fasten gravel stops or inspection wells with mechanical screws into or through the underlying roof membrane.

Apprentice Training & Risk NoticeEducational training demonstration only. Risk: Real-world structural lumber sizing, spans, and fastener schedules carry legal liability and must comply with local building codes (IRC/IBC/OSHA) and certified engineering.

Apprentice Training, specialty

Green Roof Drain Inspection Chamber & Ballast Stop

12x12 in perforated stainless steel chamber, removable locking lid, 4 in aluminum gravel stop edge trim

Removable locking lid, 4 in aluminum gravel stop edge trim Pre-planted 4 in depth interlocking poly trays with root barrier slip sheet

Time: 1 h 30 min
People: One
Level

Before you start

Clear 2 × 2 m of floor and lay out the parts.
12 parts and 9 fasteners in 6 steps.
You'll want a screwdrivers and a flat screwdriver and a spanners and a tape measure and a drill and a spirit level and a trimming knife.
Keep fine engineered planting soil from entering the inspection chamber; fines will quickly plug roof drains.
Never fasten gravel stops or inspection wells with mechanical screws into or through the underlying roof membrane.