• Provide shutter systems suitable for New Zealand environmental conditions, including high UV exposure, coastal environments, and variable humidity levels.
• Ensure compatibility with adjacent building materials, joinery systems, and façade elements.
• Coordinate installation with window, door, and façade systems to maintain weathertightness and durability requirements.

Aluminium Shutters (Exterior Applications)

• Suitable for exterior use, including decks, balconies, and façade screening.
• Compatible with aluminium joinery, curtain wall systems, pergolas, and louvre roof structures.
• Appropriate for coastal and high-exposure zones due to corrosion-resistant powder-coated finishes.
• Allow integration with sliding, bi-fold, or hinged enclosure systems.
• Suitable for automation and integration with building management or smart home systems.
• Provide solar control, ventilation, and privacy screening.

Cedar Shutters (Interior / Protected Exterior)

• Suitable for interior applications and protected exterior areas (e.g. verandas, covered decks).
• Compatible with timber joinery and heritage or character building elements.
• Accept finishes suitable for NZ UV and moisture conditions where externally exposed.
• Allow integration with natural ventilation strategies and operable window systems.
• Suitable for custom and irregular openings.

Basswood Shutters (Interior Use)

• Suitable for internal environments only.
• Compatible with standard residential window and door joinery systems.
• Contribute to interior thermal control and daylight modulation.
• Integrate with other interior shading systems (e.g. curtains, blinds).
• Suitable for custom shapes and joinery applications.

PVC Shutters (Wet Areas)

• Suitable for high-moisture environments including bathrooms, kitchens, and laundries.
• Compatible with aluminium window systems, tiled finishes, and plasterboard linings.
• Resistant to moisture, warping, cracking, and delamination.
• Suitable for use in conjunction with mechanical ventilation systems.
• Integrate with standard interior fit-out materials and finishes.

• Not a primary weathertight barrier; must be used in conjunction with compliant window/door systems.
• Confirm suitability for site-specific wind loads, exposure zones, and fixing substrates.
• Allow for movement between shutter systems and adjacent building elements.
• Coordinate clearances with joinery, structure, and cladding systems.
• Must be installed manufacturer requirements, and maintained to ensure durability.

Aluminium Shutters

• Thermal bridging may occur; not a substitute for thermally broken joinery.
• Motorisation requires power provision and coordination with electrical services.
• Wind loading limits apply to large panel sizes and operable configurations.

Cedar Shutters

• Natural timber movement may occur with changes in humidity and temperature.
• Ongoing maintenance required for external finishes exposed to UV and weathering.
• Not recommended for fully exposed or high-moisture environments without protection.

Basswood Shutters

• Internal use only; not suitable for exterior or high humidity areas.
• Susceptible to moisture-related movement if used outside recommended conditions.

PVC Shutters

• Limited structural capacity compared to timber or aluminium.
• Not suitable for exterior applications or high-heat environments.
• Size and shape limitations may apply (e.g. arched openings).

The shutter systems (aluminium, cedar, basswood, PVC) comply with relevant NZ Building Code (NZBC) performance requirements when specified, installed, and maintained in accordance with manufacturer instructions.

• B1 – Structure: Designed to resist applicable wind and operational loads when fixed to compliant substrates; site-specific design required.
• B2 – Durability: Materials selected to meet durability requirements: aluminium (exterior/coastal), cedar (interior/protected exterior), basswood (interior), PVC (wet areas).
• E2 – External Moisture: External shutters act as secondary elements only and do not provide primary weathertightness; must be integrated with compliant envelope systems.
• E3 – Internal Moisture: PVC and finished timber shutters suitable for moisture-prone interiors with adequate ventilation.
• H1 – Energy Efficiency: Provide solar shading and contribute to thermal performance.

Conditions: Install to manufacturer requirements; confirm fixings and loadings; maintain to ensure durability.

Window Treatments NZ Ltd has been manufacturing, supplying, and installing a range of shutter systems since 1984. Over this period, shutters have been widely used across residential projects throughout New Zealand, in both interior and exterior applications.

When installed in accordance with Window Treatments’ requirements, the systems have demonstrated consistent and reliable performance, with proven durability under typical New Zealand environmental conditions. Long-term in-service use confirms their suitability for intended applications, with no known systemic performance issues when properly specified, installed, and maintained.

• Colour retention: UV-stable powder-coated aluminium finishes resist fading, chalking, and surface breakdown in high sun exposure.
• Dimensional stability: Aluminium and PVC remain stable with minimal movement; engineered timber options are selected to reduce warping and shrinkage.
• Corrosion resistance: Aluminium systems are suitable for coastal and high-humidity environments when correctly specified and maintained.
• Moisture resistance: PVC is fully moisture-resistant; coated timber systems provide controlled resistance when maintained.
• Operational longevity: Hinges, pivots, and tilt mechanisms are designed for long-term cyclic use with minimal adjustment.
• Low maintenance: Aluminium and PVC require only routine cleaning; timber requires periodic recoating depending on exposure.
• Aesthetic durability: Profiles and concealed mechanisms are designed to maintain alignment, clean lines, and visual integrity over time