Viking Dec-K-ing

The complete guide to Viking Dec-K-ing waterproof membrane system for architects, homeowners, and property managers

As Auckland Waterproofing Experts, we’ve witnessed firsthand the evolution of deck waterproofing technology, and nothing has impressed us more than Viking Dec-K-ing’s revolutionary approach to deck waterproofing. Originally designed for the harsh marine environment of Canadian pleasure craft in the 1980s, this remarkable PVC membrane system has transformed the way we think about waterproof decking in New Zealand.

Viking Dec-K-ing represents a paradigm shift in deck waterproofing technology. Unlike traditional systems that require separate waterproofing and surface treatments, Dec-K-ing provides an all-in-one solution that delivers waterproofing, aesthetics, and safety in a single 1.5mm thick PVC sheet membrane.

“The beauty of Viking Dec-K-ing lies in its simplicity and effectiveness,” explains Brendon Sutton, Sales and Marketing Manager at Viking Roofspec. “Traditional decks normally require a waterproofing membrane underneath timber decking or tiles. Dec-K-ing is a complete decking solution in one vinyl sheet.”

From our experience at Auckland Waterproofing Experts, we can confidently state that Dec-K-ing has revolutionised our approach to deck waterproofing projects across Auckland. The system’s marine heritage means it’s built for New Zealand’s challenging conditions – from Auckland’s coastal salt spray to the intense UV radiation that can destroy lesser materials.

One of the most compelling aspects of Viking Dec-K-ing is its versatility in design. The system offers seven carefully curated colour options, each designed to complement different architectural styles and personal preferences:

• Sandy Landau Grey (LRV 33): Perfect for modern residential and commercial applications
• Baltic: Ideal for contemporary apartments and darker building schemes
• Sandy Pearl: Excellent for coastal properties and light-coloured buildings

• Stonehenge (LRV 28.5): Natural stone appearance for heritage and traditional buildings
• Sand Pebble: Sand-coloured pebble pattern perfect for outdoor entertainment areas

• Prairie Barn (LRV 43): Warm timber plank pattern for rural and earthy colour schemes
• Country Cottage (LRV 27): Rustic timber board appearance for traditional homes

The Light Reflectance Values (LRV) are particularly important for Auckland’s climate, with higher values like Prairie Barn’s LRV of 43 providing superior heat reflection – keeping deck surfaces cooler underfoot during summer months.

Our extensive experience with various waterproofing systems across Auckland has demonstrated Dec-K-ing’s clear superiority in multiple key areas. The comparison above highlights why architects and property managers increasingly specify Dec-K-ing for their projects.

From our professional perspective at Auckland Waterproofing Experts: “Dec-K-ing’s 20-year warranty and proven track record since the early 1990s in New Zealand gives our clients unprecedented peace of mind. The heat-weldable seams create bonds stronger than the membrane itself – something we simply cannot achieve with liquid-applied systems.”

Viking Dec-K-ing holds BRANZ Appraisal No. 411, demonstrating compliance with New Zealand Building Code requirements for external moisture control. This comprehensive approval covers both timber and concrete substrates, with specific provisions for:

• Residential Applications: Decks up to 40m² on timber structures
• Commercial Applications: Unlimited size on reinforced concrete structures up to 3 storeys
• Minimum Falls: 1:40 for decks, 1:60 for gutters

The system has undergone rigorous testing including CAN/CGSB 37.54-95 and ICBO standards, covering thickness, breaking strength, elongation, lap joint strength, low temperature impact, heat ageing resistance, weathering, and chemical resistance.

“The technical performance data speaks for itself,” notes our senior waterproofing specialist. “Dec-K-ing has passed every test thrown at it, from puncture resistance equivalent to marine deck applications to UV stability that’s been proven over three decades in New Zealand conditions.”

Viking Dec-K-ing has found its way into numerous high-profile installations across New Zealand, demonstrating its versatility and reliability:

Kohia Terrace School in Auckland utilised Dec-K-ing for their second-floor classroom access walkways. The project required a durable, grippy surface that could withstand heavy foot traffic from children while maintaining an attractive appearance. The result exceeded expectations, providing a safe, weathertight solution that complements the school’s aesthetics.

An Auckland childcare centre selected Dec-K-ing’s Country Cottage pattern for their 83m² outdoor play area. The membrane’s superior heat reflection properties and comfortable underfoot feel made it ideal for toddlers, while its easy maintenance with simple soap washing suited the facility’s operational needs.

Kāinga Ora has increasingly specified Dec-K-ing for their apartment complexes, particularly for common walkways and deck areas. The membrane’s safety features, including its embossed slip-resistant surface, align perfectly with their requirements for public housing developments.

A large leaky Kingsland apartment complex utilised Dec-K-ing during their comprehensive recladding project. The membrane’s ability to provide both waterproofing and finished surface in one application significantly streamlined the construction process while ensuring long-term protection.

One of Dec-K-ing’s greatest strengths lies in its installation requirements. This ensures:

• Consistent Quality: Every installation meets Viking Roofspec’s exacting standards
• Proper Heat-Welding Technique: Critical for achieving watertight seams
• Substrate Preparation: Proper surface preparation according to specific protocols
• Pattern Matching: Professional handling of patterned membranes for seamless appearance

As an Auckland Waterproofing Experts team member explains: “The Viking training programme transformed our approach to membrane installation. The heat-welding techniques and substrate preparation methods we learned have become the gold standard for all our projects.”

Auckland’s coastal environment presents unique challenges for building materials. Salt air, high humidity, and intense UV radiation can quickly degrade inferior waterproofing systems. Dec-K-ing’s marine heritage provides distinct advantages:

The PVC formulation remains completely unaffected by salt air, making it ideal for waterfront properties from Mission Bay to West Auckland beaches.

With over three decades of proven performance in New Zealand conditions, Dec-K-ing has demonstrated exceptional UV resistance. The membrane maintains its integrity and appearance far longer than traditional alternatives.

The lighter colour options and heat-reflective properties keep deck surfaces significantly cooler than timber, concrete, or darker membranes. This thermal performance is particularly beneficial for barefoot comfort around pools and outdoor entertainment areas.

Dec-K-ing’s maintenance requirements represent a significant advantage over alternative systems:

• Regular soap wash with soft broom
• No special cleaners or treatments required
• Stain-resistant surface minimises deep cleaning needs

If damage occurs, Dec-K-ing allows for localised repairs without full replacement. A damaged section can be heat-welded with a matching patch, maintaining the membrane’s integrity and appearance.

While Dec-K-ing represents a premium initial investment, the 20-year warranty and minimal maintenance requirements provide exceptional long-term value. Our clients report significantly lower lifecycle costs compared to systems requiring regular recoating or replacement.

Modern architects and designers are finding innovative applications for Dec-K-ing beyond traditional deck waterproofing:

Dec-K-ing works seamlessly with internal gutters and complex drainage systems, allowing for sophisticated water management in multi-level designs.

The membrane’s slip-resistant surface and comfortable underfoot feel make it ideal for accessibility ramps and walkways in commercial applications.

The combination of waterproofing, slip resistance, and heat reflection makes Dec-K-ing particularly suitable for pool deck applications where safety and comfort are paramount.

Viking Dec-K-ing aligns with contemporary sustainability goals through several key attributes:

The 20-year warranty and proven durability mean fewer replacement cycles, reducing construction waste and associated environmental impacts.

Heat-reflective properties contribute to building thermal performance, potentially reducing cooling loads in adjacent interior spaces.

While the membrane is manufactured in Canada, Viking Roofspec’s New Zealand operations support local employment and reduce supply chain emissions compared to multiple imported components.

After installing hundreds of square metres of Dec-K-ing across Auckland, our professional assessment is unequivocal: this system represents the pinnacle of deck waterproofing technology. The combination of marine-grade durability, aesthetic versatility, and professional installation support creates a package that consistently exceeds client expectations.

Dec-K-ing provides design freedom with seven colour options and the ability to create complex waterproofing details without compromising performance. The BRANZ approval and comprehensive technical documentation streamline consent processes.

The 20-year warranty, minimal maintenance requirements, and proven track record make Dec-K-ing an excellent long-term investment for commercial and multi-unit residential properties.

Dec-K-ing transforms outdoor living spaces into comfortable, safe, and attractive areas that enhance property value while providing decades of reliable protection.

For comprehensive technical specifications and installation guidelines:

Technical Documentation

• Viking Roofspec Technical Literature: Complete system specifications and installation guides
• BRANZ Appraisal No. 411: Official building code compliance documentation
• Product Data Sheets: Detailed technical performance data

Our team combines decades of waterproofing experience with the specialised training required for Dec-K-ing installation. Whether you’re planning a new construction project or need to replace a failing deck membrane, we’re here to provide expert guidance and professional installation.

Contact Auckland Waterproofing Experts today to discuss how Viking Dec-K-ing can provide the perfect solution for your waterproof decking needs. With our local expertise and Viking’s proven technology, your deck investment will deliver decades of reliable performance in Auckland’s challenging climate.