Roofs & Terraces

Membrane Waterproofing

Sheet and liquid membranes applied above, below or at grade.

Overview

Membrane waterproofing is applied to the exterior face of a structure. It can go above, below or at grade on surfaces exposed to weather and surrounding soil. It is available as a fluid-applied membrane, sheet membrane, or hydrous clay and vapour barriers.

Membranes form a continuous, seamless layer that keeps water away from the concrete itself. They are the go-to choice for large roofs, podiums, basements and foundation walls.

We install APP and SBS torch-on membranes, self-adhesive sheets and fluid-applied polyurethane membranes, with careful detailing at laps, upstands and penetrations, where most failures start.

Typical torch-on sheet thickness: 4mm
Lap joints sealed and checked: 100%
Seamless fluid-applied option: ∞

How the job runs.

Step 1
Substrate prep
Grinding, cleaning and priming for full adhesion.
Step 2
Detailing
Fillets, upstands and pipe collars treated first.
Step 3
Lay membrane
Torch-on or fluid membrane with overlapped, sealed joints.
Step 4
Protect
Screed or protection board so the membrane stays intact.

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