Key Takeaways:
Roofs and gutters handle extreme weather conditions. You must maintain a watertight seal to prevent costly water damage.
Our Australian range includes waterproof remedial coatings and hybrid sealants that provide instant protection.
Fibre-reinforced formulas bridge cracks and gaps for extra strength.
These products bond strongly to concrete, metal, timber, and bitumen.
How to Waterproof Roofs and Gutters
Roofs and gutters take a beating from the Australian elements. Heavy rain, high UV exposure, and constant temperature changes wear down your materials over time. Cracks, leaks, and loose joints will lead to serious water ingress if you ignore them.
You need products that provide professional performance and are simple to use on site. Our liquid waterproof coatings and hybrid sealants deliver an instant barrier. You can even apply some of these products on wet surfaces. They remain fully elastic once cured to handle natural building movement. Fibre-reinforced technology helps bridge existing cracks so the seal won’t peel or split under pressure.
These systems provide broad compatibility across your entire roof structure. They bond easily to concrete, cement plaster, bituminous membranes, metal sheets, timber boards, and plastics. They are cold-applied systems. This means you don’t need to heat or mix anything before you start working. For larger penetrations or deep voids, use an expanding foam first to create an airtight base before you apply the waterproof layer.
Our waterproofing solutions include Soudagum Hydro, Soudagum LM, Pureseal Roof & Gutter, and SMX35 Seal & Stretch. We engineer each product for massive durability and UV resistance. Together, they give you a complete system to seal and protect exposed surfaces in both residential and commercial projects.
Ready to start your project? Use our Store Locator to find your nearest Soudal stockist and grab the right waterproofing tools today.
FAQs
Can I apply roof sealant while it is raining?
Yes, you can use specific products like Soudagum Hydro for emergency repairs during a downpour. It displaces the water to create an instant seal. However, for permanent repairs, we always recommend applying the product to a clean and dry surface.
How long does roof and gutter silicone take to dry?
Most neutral cure silicones like Pureseal Roof & Gutter will form a skin within 10 to 15 minutes. Full curing takes about 24 hours depending on the temperature and humidity. Do not expose the fresh silicone to heavy water pressure until it is completely cured.
What is a hybrid sealant?
Hybrid sealants like SMX35 Seal & Stretch combine the flexibility of silicone with the paintability and strength of polyurethane. They are incredibly tough and resist UV damage perfectly. This makes them ideal for exposed roof joints and facade panels.
Do I need a primer for Soudagum Hydro?
No. You can apply this coating directly onto most common roofing materials without a primer. It bonds strongly to zinc, steel, concrete, and timber right out of the bucket.