Roofing

Rubberised vs Acrylic Waterproofing: Which One is Better for Your Project?

Rubberised vs Acrylic Waterproofing: Which One is Better for Your Project?

When it comes to protecting your roof and walls from water damage, choosing the right waterproofing product is essential. Two of the most popular options in South Africa are rubberised waterproofing and acrylic waterproofing—but what’s the difference, and which one should you use?

At Build It DTM in Benoni, we supply both solutions and help customers pick the best product for their needs.

What is Rubberised Waterproofing?

Rubberised waterproofing is a thick, flexible coating made with rubber polymers. It forms a seamless, elastic barrier over surfaces and is commonly used for:

  • Roofs (flat or pitched)

  • Gutters

  • Concrete slabs

  • Balcony floors

Benefits:

  • Highly flexible – handles cracks and movement

  • Long-lasting performance

  • Excellent UV and weather resistance

  • Can be applied on metal, concrete, or cement using primer

Rubberized waterproofing are applied with a roller

Rubberised waterproofing is  applied using a roller

What is Acrylic Waterproofing?

Acrylic waterproofing is a water-based coating that forms a durable barrier when it dries. It’s typically reinforced with membrane fabric and is great for:

  • Roofs and parapet walls

  • Pitched roofs

  • Window ledges and flashing

Benefits:

  • Easy to apply and recoat

  • Quick drying

  • UV resistant

  • Available in multiple colours

Acrylic waterproofing is applied with a membrane

FeatureRubberised WaterproofingAcrylic Waterproofing
FlexibilityVery highModerate
DurabilityLong-lasting (10+ years)Medium (5–8 years with maintenance)
Surface MovementExcellent crack-bridgingLimited – requires fabric membrane
Application AreasRoofs, gutters,flat or pitched roofs Small surfaces, Pitched roofs
Price RangeHigher upfront costMore affordable

Which Should You Choose?

  • Use Rubberised Waterproofing if:

    • You want long-term protection and flexibility

    • You’re waterproofing large or exposed areas that collects water 

    • You need a heavy-duty coating that resists cracking and peeling

  • Use Acrylic Waterproofing if:

    • You’re doing a quick maintenance job or touch-up

    • You want a cost-effective, paintable option

    • You are waterproofing a Roof that is slopped and does not hold water

📍 Buy Waterproofing Products from us

At Build It DTM in Benoni, we stock top-quality rubberised and acrylic waterproofing systems from trusted brands
(Flash Harry, SIKA, Duram, Home Seald ). Not sure which one is right for you? Let our experienced team help you find the perfect product based on your project.

Visit us at 19 Liverpool Road, Benoni or shop online at www.builditdtm.co.za. We also offer delivery and expert advice to get the job done right the first time.