Bridging Mould - NL306A

 

 

 

 

 

 

 

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

Benefits:
Bridging moulds are manufactured with a wider than normal flange (122mm), allowing greater flexibility for rooflight replacement, and applications where the upstand kerb is preformed, thus affording 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, built to the same exacting standards as the standard rooflight range.

Sizes Explained:
The standard rooflight eg. NL306 @ 900 x 900, would have a clear light size of 750 x 750 (150mm less than overall size).
The bridging mould @900 x 900, will have a clear light size of 600 x 600 (300mm less than overall size) due to the enlarged flange. Bridging mould @ 900 x 900 will therefore suit preformed upstand kerbs with opening between 600 & 750, depending on the flange size of existing kerb, see example above.

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).

 

 

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