FREQUENTLY ASKED QUESTIONS

Below are just a selection of questions we regularly get asked:
Q:
What is the size quoted on your website?
A:
All sizes are INTERNAL HOLE SIZE, please download the individual product details to see any technical information.
Q:
Do the fixed flat rooflights need to be fitted with a fall to make rain water run off?
A:
Yes, you should consult your contractor to ensure the correct angle is set on the kerb to create the desired run off (typically 5 degrees on top of your existing roof angle).
Q:
Is the Visi-Therm glass self cleaning?
A:
If required, our Visi-Therm glass can have a special coating on the outside to reduce cleaning and reduce water marks.
Q:
What is the guarantee of the rooflights?
A:
The general product guarantee is 10 years from date of purchase.
Q:
Does the Visi-Therm glass block the harmful UV rays of the sun?
A:
Yes, 75.1% to 82.4% of damaging UV radiation is blocked with the special Visi-Therm argon filled glass units, protecting furniture and floors.
Q:
What is the U value on the Visi-Therm triple glazed fixed flat rooflights?
A:
The U-value is 0.6 W/m2k which is the best achievable insulating performance of any glass unit making it very energy saving to prevent heat loss during cold winters and nights. With three layers of energy saving glass and two argon filled cavities the heat loss is cut by up to 80% compared to standard double glazing.
Q:
Does the triple glazed flat rooflights reduce noise from rain?
A:
Yes, the noise from rain on the glass cannot be heard with the triple glazed flat roof lights, the noise from traffic etc will also be reduced by up to 60% compared to a standard double glazed unit.
Q:
How dark is the Visi-Therm blue tint glass option?
A:
The Visi-Therm blue tint appears darker from the outside looking in but from the inside looking out it gently lifts the feel of the day and reduces glare from direct sunlight.
Q:
My roof does not have any direct sunlight on it and I want to maximise the light, which Visi-Therm glass options should I choose?
A:
Choose our Visi-Therm clear glass because the blue does reduce the light slightly to help control glare but with the clear you will maximise the light.
Q:
What is the thickness of the Visi-Therm triple glazed units?
A:
The triple glazed Visi-Therm units are up to 46-48mm thick for the larger rooflights which require 6mm toughened glass.
Q:
How quick can I take delivery if I order today?
A:
Delivery is approximately 15-25 working days depending on product purchased. We also deliver direct to your site using our own vans.
Q:
Can I walk on the fixed flat glass rooflights?
A:
No, but there is a special 'walk on' option available to order specifically designed using very thick laminated glass if this is a requirement.
Q:
How is my Rooflight(s) delivered? and will help be required to unload?
A:
Your rooflight(s) will be delivered using our dedicated vans, it is a kerbside delivery only and there will need to be extra hands on site to help unload the rooflight(s). We will confirm at time of delivery notification, the weight of the rooflight and how many people will be needed to help unload the rooflight.
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