Poor installation of membranes around service ducts.

What's the solution?

Problem:

Passed the pre-pour inspection from all parties and “good to go” really? We can do better than this surely!

The Solution:

The answer to all four is to use a Conqra Apache!

D.P.M.-cut-too-short-showing-the-GAP
D.P.M. cut too short showing the GAP.7 subgrade and service duct exposed to concrete infill, making the connection solid not flexible. Allowing water to egress from below the D.P.M.
Service-duct-located-in-exterior-edge-beam
Service duct located in exterior edge beam and a rock placed against the duct to space it away to allow for concrete cover.
Bubble-wrap-falling-short-of-the-D.P
Plastic bubble wrap falling short of the D.P.M. allowing concrete to lock the duct and restricting the movement. Allowing water to egress from below the D.P.M.
Polystyrene-collar-not-the-correct-diameter
Polystyrene collar not the correct diameter, allowing concrete to access around the duct and again restrict the movement.
Do-it-right-Apache-solution
The Apache is a 200-micron plastic membrane/service duct slip joint.

Read our other case studies