Decagon- NL302








Size Options:
Standard size unit as diagram (A), upstand kerb if required can be modified to suit non standard sizes, other options available in one piece, Domes from 450mm diametre to 1950mm diameter, see Data sheet.

Cork or Pvc insulation can be fitted to the base kerb, as an option, to suit your requirements.

Thermoformed from 3mm thick polycarbonate sheet, and available as single, twin or triple skin units, our roof lights benefit from high impact resistance, and long life due to the UV protective coating applied to the outer skin during sheet manufacture. A wide range of colour and transparency options are available to suit the majority of applications, the most commonly supplied to our clients being clear, clear patterned or opal. Please contact our technical staff if you require colour samples or information on additional colour options.

This unit type allows circular or a faceted upstand that can be either provided by ourselves or an extension of the roof structure. This unique design give the largest one piece dome with a modern design shape.

Fixing Details:
When the kerb is supplied fully assembled ready for fitment to roof structures, the kerb should be fixed at 300mm centres. Thermoformed Roof lights - Are supplied separately to kerb and should be bolted to the opening frame, sealer washers, caps and roofing bolts with nuts are supplied as standard for this purpose.

Cleaning / Maintenance:
Cleaning - Thermoformed roof lights should be washed down with a mild detergent and warm water. Do not use abrasives.

Other options available:
This unit can be supplied with an ‘Adaptor kerb profile’ giving adjustment to (see Data Sheet), and enabling many of our products to be incorporated into the upstand kerb.

Points to check prior to advising us of your requirements:
When placing an enquiry/ order please be sure to note the roof opening size , and where possible the width of the upstand kerb.

Impact Test:
At the request of Nulite Ltd, B.R.E tested various size samples of Domed roof lights with either a PVC or steel upstand kerb, the test assesses the fragility of the specimen roof light when subjected to an impact by a large soft body as in the standard ACR (m) 001:2000 (full details on the test report are available on request).


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