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Custom Glaze

Retrofit onto your existing structure or design it into your next outdoor entertainment living area.

  • Description
  • Specifications
  • Warranty
  • Resellers
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Custom Glaze™ is a completely new Polycarbonate glazing product specifically designed for DIY installation.

Where tired existing structures are in need of a tidy up with replacement sheeting, Custom Glaze™ should be considered as this new sheeting offers a full flat pan width of 530mm with overlapping ribs at 610mm.

Sheets are simply laid and fastened down one lap over the other with Alsynite Multipurpose 14 x 65mm fasteners.

Because no expensive glazing bars are required, this new contemporary look sheet is extremely cost-effective. Available in lengths up to 7.2m and in Clear, Bronze, Grey and new Diffused Opal.

Selecting Custom Glaze

Custom Glaze™ is suitable for a variety of existing and future structures where the rafters are designed to be placed specifically at 610mm centres.

Custom Glaze™ is a very cost effective polycarbonate roofing system providing a contemporary stylish flat roof look without the need for expensive glazing bars.

Both the overlapping ribs are spaced at 610 centres, allowing the overlapping rib to be positioned on the rafter effectively concealing the ribs when being viewed from below.

Custom Glaze™ offers 99.9% UV protection and is extruded with an industry leading thickness of 2mm.

Custom Glaze™ is available in all standard and custom lengths* up to 7.2 metres.


STANDARD LENGTHS (m): 1.8, 2.1, 2.4, 2.7, 3.0, 3.6, 4.2, 4.8, 5.4, 7.2



The recommended minimum roof pitch for Custom Glaze is five degrees.

Custom Glaze is designed to be installed on purlins at a maximum of 1500mm centres.

For installations in snow prone areas, the purlin spans should be reduced to a maximum of 610mm centres.

Alsynite Noise Stop Tape should be installed on purlins prior to fixing the sheet to the purlins.

Ensuring your Custom Glaze is presented in pristine condition, there is a protective film on both sides of the sheeting. This film can be peeled back off the sheets at install after drilling the fixing holes and prior to securing the fixing into the rafter.

To fasten Custom Glaze, it is recommended that Custom Glaze Alsynite Multipurpose Fasteners are used. They are specifically designed for fixing Custom Glaze securely to the rafters. Custom Glaze must be fixed on both crests of every purlin.

Custom Glaze has an overlapping rib and an underlapping rib, these are specifically designed so that the exact effective cover is maintained across the structure.

Please ensure the over lapping side fits over the underlapping rib, refer to fixing instructions included in the pack.


The brand name ‘Custom Glaze’ identified in this warranty refers to Alsynite Custom Glaze Polycarbonate Roofing Sheet.

Loss of Light Transmission – Lifetime Warranty

Alsynite warrants that for the commercial life of the Products (subject to the terms below) they will not lose the ability to transmit light.* In the event that a Product fails to comply with this warranty, Alsynite One NZ Ltd will provide a full replacement of the Product, or in the case of a discontinued line, its equivalent.

*The loss of light transmission will not exceed 11% in the first 15 years (0.7% per year) from the date of manufacture and 1% per year thereafter, as long as the sheet lasts in its original installation, available to the original purchaser (when tested in accordance with AS/NZS 4257.4-1994 Determination of diffuse light transmission).

Weather Breakage – 10 Year Warranty

Alsynite One NZ Ltd warrants that for a period of 10 years from the date of manufacture, the Products (subject to the terms below) will specifically resist damage due to hail measuring up to 25mm in diameter. In the event that a Product fails to comply with this warranty, Alsynite One NZ Ltd will provide a full replacement of the Product, or, in the case of a discontinued line, its equivalent.


  1. This warranty is limited to residential applications & applicable to the original purchaser only.
  2. The Products must be stored, installed and cleaned in accordance with the written instructions which are available at the point of purchase or alternatively from
  3. This warranty does not apply to damage due to the following causes:
    (a) Impact of hail measuring greater than 25mm in diameter;
    (b) Extreme weather conditions, including but not limited to hurricanes, cyclones, tornados;
    (c) Accident, vandalism, fire or other like causes; or
    (d) Failure to comply with Alsynite One’s instructions for storage, installation and cleaning.
  4. All claims made under this warranty must be made in writing and must include a copy of the original purchase documentation or other evidence of the original purchase date.
  5. Following receipt of a claim made under this warranty, an authorised Alsynite One NZ Ltd
    representative may choose to inspect the Product and if the claim is accepted, Alsynite One NZ Ltd will retain the damaged Product and provide replacement Product or, in the case of a discontinued line, its equivalent.
  6. Alsynite One NZ Ltd is not responsible for costs associated with the removal and installation of the Product. These costs must be borne by the claimant. This warranty is strictly limited to the Products.
  7. The benefits to the consumer under this warranty are in addition to other rights and remedies of the consumer under the law in relation to the goods to which the warranty relates and in no way limits, varies or excludes any express and implied rights and remedies under any relevant legislation in the country of sale.
  8. These goods come with guarantees that cannot be excluded under the New Zealand Consumer Law. You are entitled to a replacement or refund for a major failure and for compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be acceptable quality and the failure does not amount to a major failure.
    • Custom Glaze Product Brochure
    • 3.09 MB
    • PDF
    • Custom Glaze Installation
    • 136.09 KB
    • PDF

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