Solution 1

Thermtek FL aluminium range – R0.46-R0.56

The Thermtek FL is the hero in this architecturally designed range, featuring revolutionary construction methods and an R-rating of 0.56 for a 1980 x 860mm size door.

In fact, most Aluminium Thermtek FL doors meet or exceed the maximum R0.50 threshold, with none performing lower than the R0.46 threshold for Climate Zones 1-4.

Advantages at a glance:

• Very low maintenance
• Durable in harsh weather conditions
• Stable, strong and secure
• Superior noise barrier
• Powder-coated to the colour of choice
• Suitable for dark colours
• 10-year warranty for all weather

Solution 2

Duramax composite range – R0.60-R1.16

Parkwood’s most affordable door range also provides the best insulation. The Duramax composite range R-rating starts at R0.60 and goes right up to R1.16.

Designed to withstand the extremes of New Zealand weather conditions, these highperforming composite doors won’t rust, rot, twist or dent, and don’t need to be sheltered. All Duramax doors can be supplied painted or unpainted.

Advantages at a glance:
• Polyurethane core for high insulation provides a better thermal R-rating than aluminium and timber doors.
• Solid composite resin edges (can be trimmed or rebated).
• LVL stiles and rails for superior stability (reduces warping and bowing).
• Glass Reinforced Polyester skins for durability and weatherproofing even in extreme conditions.
• 10-year warranty for all weather.

Solution 3

Timber range – up to R0.70

If timber is the preferred material, a number of cedar and Vulcan doors exceed R0.50, with more still above R0.46, including some ash and pine options. The best-performing timber door is the Vulcan E1 (52mm thick) at R0.70.

(Vulcan refers to a thermal modification process that changes the property of the wood to create a more stable and durable product).

Built with the highest quality craftsmanship using a range of timber options, this range is designed for sheltered conditions, with a minimum 1200mm eave.

Advantages at a glance:
• Premium hand-made doors by skilled craftsmen.
• All timber hand-selected and colour-matched.
• Kiln-dried and moisture tested to stop movement.
• Made-to-measure.
• 5-year warranty.

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