Roof Waterproofing & Repair

Hydro-Seal Engineering is a local waterproofing contractor that specialises in roof waterproofing and roof repairs services for various roof types. Our expert waterproofing specialists are able to diagnose, repair and restore your roof seepage issues to ensure long-lasting roof leaking prevention.

Methods & Techniques

Torch-on Membrane to RC Flat Roof

Modified bitumen membranes deliver strength, flexibility and puncture resistance through specialised reinforcements.

Professional installation involves heat-torching to the base with overlapped, sealed edges creating a seamless waterproof barrier. This system provides superior protection when expertly applied on flat roofs.

Hydro-Seal Engineering brings extensive experience to every Torch-On Membrane installation, ensuring exceptional waterproofing protection for your property.

Liquid Applied Membrane to Roof Tile

Roof tiles, installed overlapping and secured with nails on sloped surfaces, effectively channel rainwater into gutters, preventing the pooling common on flat roofs.

Despite their strength, tiles eventually succumb to weathering, developing cracks and roof leaks. Professional waterproofing treatments—including sealants, fibreglass and specialised coatings—seal gaps between tiles and protect vulnerable areas like ridge tiles, valley gutters and flashings.

Proper preparation and application of quality roof coating systems significantly extends tiled roof lifespan while maintaining optimal water protection.

Liquid Applied Membrane to RC Flat Roof

Liquid-applied membranes are versatile fluid coatings applied with brushes, rollers or spray equipment for flat roof waterproofing. They form resilient roof waterproof barriers through solvent evaporation or chemical cross-linking.

Application typically involves multiple layers starting with a primer for optimal adhesion. Fibreglass or polyester reinforcements are incorporated to withstand concrete's natural expansion and contraction from temperature changes. This adaptable solution is particularly effective for complex and congested roof designs where traditional systems struggle.

Liquid Applied Membrane to Metal Roof

Metal roofs made from zinc, aluminium composites and steel alloys provide durable protection but remain vulnerable to leaks from corrosion caused by temperature fluctuations.

Water penetration can also occur through improperly fastened screws and inadequate joint lapping.

Effective waterproofing for metal surfaces involves a comprehensive liquid-applied system. The process begins with thorough cleaning and preparation of the existing roof, followed by primer application and uniform intermediate and top coatings to create a seamless, watertight barrier.