“Architecturally an amazing quality rooflights product” – Craig Driver, MD Hoopers Architects
"Architecturally an amazing quality product" - Craig Driver MD Hoopers Architects
Perfect for top end projects and can be made in almost any size imaginable. Up to 6000 x 3200 in one piece and up to ANY SIZE x 6000 in multi section design.
find out moreThis beautiful rooflight is the best value for money rooflight in the Uk at sizes up to 3000 x 1500 external kerb size. They looks stunning and are an unreal price!
design & cost now
We can design and supply your dream super large ‘one-piece’ Blade rooflights. Up to 6000×3200 super large bespoke rooflights in ‘one piece double or triple glazed floating rooflights. No joins, just a beautiful vista of floating glass. Or up to an incredible 6400×6000 in multi-sectional larger rooflights supported by super strong toughened laminated glass beams.
check us out on instagram:
@ofset_rooflights
We have tried to make your online journey with Ofset as simple as possible.
Most clients want the best possible contemporary rooflight at the fairest price. We are confident we tick both boxes. Try designing your forever rooflight online using our Bladebuilder costing tool.
Or just give us a call at 0845 2068343, and we will help guide you through the process with pleasure.
The look & structural integrity of our product is paramount.
Choose from one of six standard colours or any RAL colour of your choosing.
We back our amazing product for life. If it fails we replace it. Simple.
The Blade is not only the best-looking rooflight it is also the best built.
The U-value is the measurement of heat lost through a roof window. The lower the U-value, the better the rooflight is at keeping heat in.
There are three ways to measure the heat loss of a flat roof window as explained below – Ug, Uw and Ud. The glass Ug-value tends to be the lowest U-value and many rooflight companies only quote this figure which in our eyes is essentially cheating. Building regulations inspectors are not concerned with the rooflight glass U-values, they are more interested in ‘combined product’ U-values.
Clients should also bear in mind that triple glazed rooflights are not necessarily better than double glazed rooflights for the UK climate when you factor in ‘solar gain’ which is free heat harvested from the sun in the spring, autumn and winter.
Heat lost through the middle of the glass is called the Ug-Value. This measurement remains the same irrespective of the rooflight size.
The Uw value measures heat lost through both the aluminium rooflight frame and glass combined.
This is the combined ‘developed area’ heat loss measurement of the glass, frame and insulated kerb combined.
Double-A centre pane Ug-value is 1.0 w/m2k
Triple-K centre pane Ug-value is 0.4 w/m2k
Double-A glazing and frame combined Uw-value from 1.2 w/m2k
Triple-K glazing and frame combined Uw-value from 0.6 w/m2k
Double-A glazing, frame and kerb combined Ud-value from 1.1 w/m2k
Triple-K glazing, frame and kerb combined Ud-value from 0.4 w/m2k
All Blade rooflights fully comply with building regulations minimum heat loss requirements of 1.6 w/m2k for domestic installations and from 1.8 w/m2k for commercial installations. Double-A Blades are double glazed with argon gas and Triple-K Blades are triple glazed with Krypton gas, both with soft coat low-e coatings and warm edge spacer bars.
Deciding which glazing product is best for you can be a confusing business. Here’s a selection of articles to make things clearer and help you to make informed choices.
We're building the future, and we want you to be a part of it.
Click and drag to roll
