Torch-On Systems – Proven Multi-layer Protection

Torch-on waterproofing represents one of New Zealand’s most trusted multi-layer protection systems, utilising advanced modified bituminous membranes applied through controlled flame application. This proven technology creates seamless, redundant waterproofing barriers that deliver exceptional long-term durability across diverse applications.

The system works by heating specialised bitumen sheets reinforced with polyester fabric, which are then carefully torched onto prepared surfaces to form an impermeable membrane. The controlled flame application ensures complete adhesion whilst creating overlapping seams that provide multiple layers of protection against water ingress.

Ready to protect your property with proven torch-on technology? Contact Auckland Waterproofing Experts today for your free site assessment.

Viking Roofspec offers the most comprehensive range of torch-on compounds, each tailored for New Zealand’s diverse climate zones. Their Gemini APP system suits moderate environmental conditions in Climate Zones 1 & 2 (North Island excluding volcanic plateau), with a serviceability range of +120°C to -10°C and a 20-year product warranty.

Lybra SBS provides superior performance for extreme climates including Climate Zone 3 (South Island and volcanic plateau), offering exceptional cold flexibility down to -15°C. The Phoenix Super APAO represents their premium option, suitable for all New Zealand climate zones with an extended temperature range of +140°C to -35°C and a 25-year warranty.

Nuralite‘s Nuraply 3PM stands as New Zealand’s most specified torch-on membrane, with decades of proven performance across thousands of residential and commercial buildings. The dual-layer system features a mineral chip finish providing excellent UV protection and aesthetic appeal.

CodeMark certified and backed by comprehensive technical support, Nuraply 3PM integrates seamlessly with warm roof systems. The system excels in projects requiring long-term watertight flat roof performance, particularly on high-end residential and commercial developments.

Sealco‘s FlameSEAL system delivers exceptional mechanical performance, with product data sheets showing the highest tensile strength, elongation, and tear resistance of any modified bitumen available in New Zealand. Available in SBS, APP, or COMBO APP/SBS formulations, FlameSEAL provides flexibility for diverse applications.

The system includes SpeedSEAL Peel & Stick options for flame-restricted environments, increasing installation speed by up to 40% whilst maintaining superior waterproofing performance. FlameSEAL Tanking offers specialised root-resistant formulations for underground applications.

Ardex provides versatile torch-applied membranes suitable for both horizontal and vertical applications. Their systems utilise dual-layer modified bitumen construction with SBS base layers providing high elasticity and APP top layers delivering UV resistance and heat stability.

BRANZ Appraised systems include various thickness options from 2.5mm to 5mm, with mineral-coated finishes available in multiple colours. Ardex systems integrate effectively with their comprehensive range of primers, adhesives, and accessory products.

All four torch-on systems excel across residential settings, providing reliable waterproofing for Auckland homes. Flat roofs and podiums benefit from superior ponding water resistance, making them ideal for modern architectural designs. Balconies, decks, and terraces receive exceptional protection through mineral-surfaced cap sheets and multi-layer construction.

Basement waterproofing utilises specialised tanking variants, with Nuralite’s 3PT system and Sealco’s root-resistant formulations providing robust underground protection. These systems offer excellent adhesion to concrete substrates whilst accommodating structural movement.

Commercial properties across Auckland rely on these proven systems for demanding environments. High-traffic rooftop areas benefit from superior puncture resistance, whilst podium decks on apartment complexes receive long-lasting protection. Viking Roofspec’s largest-in-market roll sizes reduce seaming for large commercial installations.

Industrial facilities utilise the systems’ ability to handle heavy loading and thermal cycling, with each brand offering specific formulations for extreme conditions.

Considering torch-on protection for your commercial project? Auckland Waterproofing Experts provide comprehensive assessments across all four major brands.

All four manufacturers require strict safety protocols during installation. Professional applicators utilise propane gas roofing torches with trigger controls, complete with proper regulators and safety equipment.

Flame-free alternatives are available across all brands, with Viking Roofspec’s Halley-P system, Sealco’s SpeedSEAL, and Ardex’s self-adhesive options providing solutions for restricted environments.

All systems require proper substrate preparation with compatible primers. Viking Roofspec specifies SES300 Bituminous primer for substrates and SES297 primer for metal components. Nuralite, Sealco, and Ardex each provide specific primer systems matched to their membranes.

Surface requirements include minimum 5mm radius external corners and 20mm angle fillets at internal corners for optimal membrane performance.

Ensure your installation meets all manufacturer standards – book your free consultation with Auckland Waterproofing Experts.

All four brands utilise double-layer construction with base and cap sheet configurations providing redundant waterproofing. Viking Roofspec offers the thickest systems with 3-4mm base sheets and 4mm cap sheets. Ardex provides flexible thickness options from 2.5mm to 5mm depending on application requirements.

Reinforcement materials vary by manufacturer, with Viking Roofspec using polyester/fibreglass composite, Sealco specifying 180gsm non-woven polyester, and Ardex utilising various reinforcement options.

Warranty periods range from 15-25 years across manufacturers, with Viking Roofspec’s Phoenix Super APAO offering the longest 25-year coverage. All systems regularly exceed warranty periods when properly maintained.

Performance testing shows exceptional durability in New Zealand conditions, with all systems meeting or exceeding NZBC requirements.

Mineral-surfaced cap sheets across all brands provide excellent UV stability, with colour options including standard black, slate, grey, and specialty finishes. This protection proves crucial for Auckland’s high solar exposure conditions.

Temperature cycling performance varies by compound type, with SBS formulations offering superior low-temperature flexibility and APP compounds providing enhanced UV resistance.

All four torch-on brands provide base sheet plus cap sheet redundancy compared to single-ply alternatives. This multi-layer approach ensures continued waterproof protection even if the top layer experiences minor damage.

Mechanical performance varies by brand, with Sealco claiming the highest tensile strength and tear resistance , Viking Roofspec offering the widest temperature ranges , Nuralite providing proven track record , and Ardex delivering comprehensive system integration.

Roll sizes and handling differ across brands, with Viking Roofspec offering 10m x 1m rolls (largest in market), while others provide standard dimensions suited to various project requirements. This variety allows optimal selection based on roof configuration and access constraints.

Auckland Waterproofing Experts maintains certified applicator status across all four major torch-on brands, ensuring optimal system selection for each project. Our team undergoes regular training updates to maintain current certifications for Viking Roofspec, Nuralite, Sealco, and Ardex systems.

Our comprehensive approach includes thorough assessment of exposure conditions, substrate requirements, access constraints, and long-term performance expectations before recommending the optimal brand and system configuration.

Every installation follows manufacturer-specific quality control procedures, whether Viking Roofspec’s detailed application specifications , Nuralite’s installation manual requirements , Sealco’s bonding protocols , or Ardex’s system integration standards.

Post-installation support includes maintenance guidance specific to each brand’s requirements to maximise system lifespan.

Torch-on systems from Viking Roofspec, Nuralite, Sealco, and Ardex each represent proven technology with exceptional durability records in New Zealand conditions. The key lies in matching the right brand and system configuration to your specific application requirements, exposure conditions, and performance expectations.

Professional assessment considers factors such as climate zone, roof configuration, foot traffic requirements, aesthetic preferences, and budget constraints to determine the optimal torch-on solution.

Don’t compromise on waterproofing quality—contact Auckland Waterproofing Experts today for your free site visit and expert recommendation across all four leading torch-on brands.