Polycarbonate Dome- NL306
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Standard Sizes:
| Square - | Rectangular - | ||
| 450 600 750 900 1000 1050 1200 1350 1500 1650 1800 1950 |
600 x 450 600 x 750 600 x 900 600 x 1000 600 x 1050 600 x 1200 600 x 1350 600 x 1500 600 x 1800 600 x 2000 600 x 2400 |
750 x 900 750 x 1000 750 x 1200 750 x 1350 750 x 1500 750 x 1800 750 x 2100 750 x 2400 900 x 1200 900 x 1350 900 x 1500 900 x 1800 |
900 x 2100 900 x 2400 1000 x 500 1000 x 1200 1000 x 1500 1000 x 1800 1000 x 2000 1000 x 2400 1200 x 1350 1200 x 1500 1200 x 1800 1200 x 2400 1500 x 1800 1500 x 2100 1500 x 2400 |
For non standard sizes, we can offer two solutions, one being our 'adapter kerb' (see data sheet) which is manufactured to suit our standard range and splayed at base to suit existing kerbs. The second option, and preferred method for difficult propositions whilst maintaining cost effectiveness, is our 'Bridge mould' (see data sheet) which will allow greater tolerance of fit without the need for an adapter kerb.
Manufacture:
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.
Size Explained:
Our standard rooflight @ 900 x 900, would have a clear light
size of 750 x 750 (150mm less than overall size).
Technical Information:
Impact & breakage resistance: No breakage within limits of test.
Light transmission values (approx): Clear 80% Opal 48% Clear patterned 80% Bronze 50%
Thermal insulation values: Single skin 5.2
Twin skin 2.5 Triple skin 1.9
(W/m 2/degrees C)
Solar energy and anti-glare: Light 55% Anti-glare 67%
Fire resistance: BS476 pt7 Class 0 / BS476 pt 3 Class AA
Acoustic properties: BS6262 - Mean sound reduction
- Twin skin polycarbonate 6/29/6-31Hz
Cleaning / Maintenance:
Cleaning - Thermoformed roof lights should be washed down
with a mild detergent and warm water. Do not use abrasives.
Maintenance - Annually check mechanical components, and lubricate where necessary, actuating components.
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).