Rooftop Planter Boxes — Torch-On Membrane

Substrate preparation inside the planter boxes

The object

A residential apartment complex in Redfern, Sydney, undergoing remedial works. Our scope was the rooftop planter boxes on the main roof deck.

The problem we solved

Planter boxes sit in permanent contact with saturated soil and irrigation water, directly over occupied apartments — the waterproofing has to hold long-term, with every drainage penetration and upstand sealed.

Our scope of works

Substrate preparation, priming and installation of a torch-on bitumen membrane to the planter boxes: floors, internal walls, upstands, corners, drainage penetrations and terminations.

Special features / difficulty

Tight, compartmented cells with multiple penetrations, worked live on an occupied building with rooftop access restrictions and hot-works controls for torch application.

The result

Planter boxes handed over waterproofed and ready for drainage layers and landscaping.