TwinWall 5 Rib

Alsynite Premium Twinwall 5 Rib Polycarbonate profiled roofing is the finest blend of science, engineering expertise and the use of the most advanced extrusion equipment from PT Impack Pratama Industries.

Alsynite Premium Twinwall 5 Rib is New Zealand’s first trapezoidal Polycarbonate profiled Twin Wall sheeting, developed by us utilizing the finest Makrolon resin and extruding technology available. The result is a translucent roofing product designed for New Zealand conditions to combat our relatively high UV levels through a wide range of temperatures and conditions.

Technical specifications

Modern and stylish with appealing aesthetics
not previously available in single Trapezoidal profiled polycarbonate roofing products

Thermal and acoustic benefits specifically designed
for New Zealand conditions, particularly where condensation is a design consideration.

Suitable for use in interior applications.
The lean and sophisticated design will turn the space not just in recognition of the practical need for a modern workplace, but also conveying a fresh, friendly, intimate and elegant ambiance.

Available lengths: 5.750m, 11.5m and our standard range: 1.8m, 2.4m, 3.0m, 3.6m, 4.2m 4.8m, 5.4m, 6.0m, 7.2m,

Colours: Clear and Bronze 

6mm  Profiled Twinwall
Light Transmission: Clear 80% / Bronze 42%
Shading Co–Efficient [ mean average ] Clear 0.91 / Bronze 0.68
Solar heat gain w/m2 [ mean average ] Clear 0.74 / Bronze 0.58
Service temperature: -40 to 100 degrees celsius
R/Value: 0.278
Thermal expansion per metre: 3.5mm
U – Factor w/m2:   3.6 degrees C


Twinwall Diagram 1


  • Ease of Installation
  • Thermal Values
  • Effective Condensation Barrier
  • NRC Values
  • Aesthetically Pleasing
  • Cost Effecient
  • Superior Rigidity
  • Low Mainenance
  • Lighweight
  • Self-extinguishing



  • Warehouses
  • Canopies
  • Walkways
  • Carports
  • Partitions
  • Greenhouses
  • Inerior Walls
  • Pergolas 
  • Patios
  • Outdoor entertainment areas
  • Gyms

Product Showcase

Installers and Resellers

If you have any queries, please contact your nearest Alsynite sales office.