Waterproofing
Types of Waterproofing Membrane in Singapore
“Waterproofing” covers several different systems, and the right one depends on where it’s going. Understanding the common membrane types helps you ask the right questions and know your job is being done properly. Here’s a plain guide.
Key takeaways
- Common systems include cementitious, liquid-applied, and sheet membranes.
- The right choice depends on the area, movement and detailing involved.
- Detailing at corners, pipes and kerbs matters as much as the membrane.
- A warrantied system installed correctly is what actually keeps water out.
Common membrane types
| Type | What it is | Typical use |
|---|---|---|
| Cementitious | Cement-based coating | Bathrooms, internal wet areas |
| Liquid-applied | Painted-on flexible membrane | Bathrooms, balconies, complex shapes |
| Sheet membrane | Pre-formed rolls, bonded down | Larger areas, roofs, terraces |
Choosing the right system
The best system depends on the location (bathroom, balcony, roof), how much movement the surface sees, and the detailing required. Flexible liquid membranes suit awkward shapes and areas that move; cementitious systems are common in internal wet areas. A good contractor recommends based on your specific case.
Detailing is half the job
Most leaks start not in the middle of a floor but at the edges — corners, floor traps, pipe penetrations and kerbs. Correct detailing at these points, plus adequate coverage and curing, is what separates waterproofing that lasts from waterproofing that fails. That’s why a warranty matters.
Frequently asked questions
Which waterproofing membrane is best? It depends on the area and movement — there’s no single best; the right match matters.
Where do leaks usually start? At edges and penetrations — corners, traps and pipes — so detailing is critical.
Can I just add more layers of the same product? Not necessarily — the correct system and detailing matter more than thickness alone.
Does waterproofing come with a warranty? Quality workmanship should — it’s your assurance the hidden work is sound.
Need waterproofing done right?
We assess and apply the right membrane system with proper detailing and a warranty. See our waterproofing service and the cost guide. Get a free assessment.
