Naturalight polycarbonate thermoformed barrel rooflights are designed to be a smart, robust, and reliable method of allowing natural light into a room. Available in a range of colour tints (clear, diffused, opal, and bronze) and can be made to suit customer specifications. The rooflights are manufactured using a thermoforming process which includes a single, double, triple, and quadruple skin construction, allowing the rooflight to meet architectural requirements.
U-values:
Double skin – 2.6 wm2k
Triple skin – 1.8 wm2k
Quad skin – 1.4 wm2k
Light transmissions:
Clear 87% – High light transmission
Allows full vision of views and objects/Minimum privacy
Diffused 84% – High light transmission
Increased privacy/Reduced glare and shadows
Opal 50% – Low light transmission
Maximum privacy/Reduced glare and shadows/Prevents vision of views and objects
Bronze 50% – Low light transmission
Reduced solar heat gain/Cuts down the brightness of sunlight
Solar gain:
The solar gain (‘G’ value) can be improved to a more manageable level by way of introducing varying tint interlayers to the polycarbonate rooflight construction, thus reducing the heat build-up occurring from transmittance through the rooflight area.
Acoustic:
The typical airborne sound reduction of a triple skin rooflight is 30-35db.
Fire rating:
Products comply with current UK building regulations covered under BS476 and European standards covered under BS EN 13501.
STATEMENT:
Naturalight Systems Ltd has a continuous research and development program and reserves the right to improve or modify products without notice.
Thermoformed Barrel Test Report
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