Bream Street Coogee

Client: Body Corporate / Abacheck Consulting / Strata Manager, Clisdells Strata Management

Location: Bream Street, Coogee

Task: To solve the water ingress problem for the top 2 penthouses and the entire building complex.

Andersal Site Supervisor: Peter Kloots

Special Challenge

The building had been leaking since initial construction. There had been numerous ad hoc attempts to fix bits of the problem but these generally failed and the endemic problems remained. Basically the 2 penthouses had leaking balconies, leaking rear door thresholds, and leaking planter boxes. There were 3 leaking skylights. The common area sundeck leaked, water seeped through walls of most units as the cavity flashing was totally inadequate. The result was extensive internal water damage, peeling paint, rotting carpet and stench.

The building is a 4 story building with minimal roof fencing. Roof access is by crane blocking the street requiring council and resident approvals. Standard working at heights procedures would need to be strictly observed.

Blocked wall cavity before new flashing installed
 New cavity flashing installed ready for new brickwork

Solution:

  • Australian Access Hire provided an elevated work platform.
  • United Equipment provided a knuckle boom lift.
  • Active Platforms provided a swinging stage.
  • Andersal installed static lines so fall arrest equipment could be used on all the roof area.
  • Botany Cranes provided a 25 tonne City Crane which provided equipment, membrane and tiling lift and assisted with rubbish removal.
  • Randwick Council allowed permits for temporary road closure. Andersal undertook the notification of local residents.
  • The wall cavity was partly full of an extraordinary collection of sand, cement, electric cable, plywood and plastic bags which ensured the incorrectly installed cavity flashing was totally useless. Andersal cleaned the cavity.
  • Some 300m of cavity flashing was installed utilising cavity flashing screw jacks and using WAKAFLEX. WAKAFLEX is much superior to traditional lead flashing. It is flexible, non-toxic, paintable, light, durable, easy to use and one third the cost.
  • Andersal sealed the 300m roof area with Cosmofin. Originally this area had a liquid membrane that failed. We initially quoted to replace this with acrylic membrane but a surer solution was preferred. Torch on membrane was a possibility but because water was trapped under the slab, Andersal recommended Cosmofin at slightly greater cost as this produced both the best waterproofing and the ability to let water vapour release over time so the slab could fully dry out.
  • 2 illegal non building code compliant planter boxes were removed to increase the effective balcony areas.
  • Andersal coated the rear common sundeck BBQ area with Dry Treat to seal the tiles and prevent water soaking through the slab.
 Western wall cavity work under way

Crane in Bream Street lifting rubbish off the roof and materials onto the roof

Swinging stage on the eastern wall for cavity flashing works