Metal Back Channel

$82.00$99.00 per 3.6m length

Foam infills are included.

Standard delivery charge of $65 for all roof sheeting orders up to 4.2m in Auckland.
Please request a freight quote if sheeting is over 4.2m or you are outside of Auckland.

Metal back channel:

  • Prevents leaking at walls and Facias. Used on the high end of your structure.
  • Available in two colours grey friars or titania
  • 3.6M long
  • Includes foam roll or foam infills

Corrugated and greca dimensions: 45MMX20MMX20MM  

5 Rib and Custom Glaze dimensions: 45MMX35MMX35MM

Infill Type

Foam Roll 3.6m, 4 Single Infills for Corrugate, Greca, 5 Rib, 6 Single infills for Custom Glaze

Freight Information

For Freight charges please contact Supreme Plastic Roofing on 09 636 0949

Storage & Cleaning

Storage information

Twinwall – It is very important that you keep the flutes dry.  Please make sure that you keep your twinwall in a covered area away from water (moisture) and dust until installed correctly
Acrylic – Please keep the acrylic in a dry area as the sheet comes with a paper masking which is very hard to remove if wet.
Custom Glaze – Do not leave your sheet out in the sun as the protection cover can bake into the sheet.  Keep undercover until installed.

Cleaning information

To keep your Polycarbonate and Acrylic roofing clean, we recommend cleaning it regularly using warm soapy water and a soft sponge, we do not recommend water blasting or using any other harsh cleaning chemicals as it can break down the protective U.V layer on Polycarbonate sheeting, these cleaners can also contain chemicals that are harmful to PMMA (Acrylic)

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