Duplus Secured By Design fixed rooflights meet the requirements set out in The Building Regulations Approved Document Part Q: Security in Dwellings (2015 Edition).
Duplus Rooflights are available in a range of sizes and finishes to suit.
If you require other colours, sizes or quantities please get in touch or call 0116 2610 710.
Stock items are usually delivered within 1-2 days*
Custom rooflights are usually delivered within 3-4 weeks*(*subject to availability)
FREE DELIVERY (Excl. Scotland, West Wales, Devon & Cornwall)
Please note, all sizes are based on external kerb/upstand size
Our Secured By Design fixed rooflight has been tested by a leading independent testing facility, BRE (Building Research Establishment) and achieved LPS 2081:Issue 1 certification. This means that our secured rooflights conform to the requirements set out in The Building Regulations Approved Document Part Q (Secure by Design). The test involves a timed manual attack using various methods to determine whether the rooflight can withstand an attack by an intruder.
Our Secure By Design rooflights are fully watertight with a high quality, flush-glazed and elegant appearance. Our fixed rooflight incorporates a fully enclosed double-glazed unit to eliminate the risk of breakage. Traditional stepped-edge glass rooflights have a significantly higher vulnerability to breakage due to their exposed edges. We also offer our standard fixed roof light units
To achieve Secured By Design Part Q certification, our rooflights are double-glazed with an outer pane of clear toughened and HEATSOAKED safety glass and an inner pane of clear laminated glass. If required we offer blue, bronze or grey tinting or if preferred, an obscure finish for privacy or high-performance solar control to minimise solar gain (heat) (g) and maximise light transmittance (Lt).
As with all our rooflight products, this Secured By Design fixed rooflight is easy to install. An integral perimeter gasket creates an air and water seal without the need for site-applied silicone. The product is secured via screw fixing to the builder’s kerb externally and a matching cover clip is then applied to conceal the fixings.
All our rooflights satisfy the thermal performance criteria defined in the Building Regulations and achieve high resistance to condensation under normal conditions. We can provide True U-values and Ud-values upon request.
The Duplus secure rooflight range is tested for weathertightness to BS EN 14351-1:2006 +A1:2010 clauses 4.2, 4.5 and 4.14 – Our test reports are available in our technical section.
As standard, the extruded aluminium perimeter frame is powder-coated RAL 7016 dark grey matt or RAL 9005 black matt. We can offer other RAL colour options upon request.
All our rooflight glazing specifications incorporate clear low ‘E’ glass as standard, achieving a centre pane U-value of 1.1 W/m²K.
We deliver our fixed rooflights FULLY ASSEMBLED and fully weathertight. No time-consuming assembly on site required. Significantly higher security compared to kit systems.
If you require a higher level of security enhancement, we can offer a Secured By Design rooflight to suit. Please contact us to discuss your requirements.
| Size | 600mm x 600mm, 750mm x 750mm, 1000mm x 1000mm, 1000mm x 1500mm, 1000mm x 2000mm, 1000mm x 2500mm, 1000mm x 3000mm |
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Glass thickness is dependant on the size. As a general rule, this will be double-glazed with two panes of 6mm toughened glass. We also provide triple-glazed rooflights.
Yes. Our fixed rooflights are suitable up to a maximum roof pitch of 70 degrees (excluding sliding rooflights and roof lanterns).
The biggest fixed roof light we provide with a single length of glass is 2m x 3m.
We stock 600mm x 600mm, 750mm x 750mm, 1000mm x 1000mm, 1000mm x 1200mm and 1000mm x 1500mm. All sizes are external kerb/upstand dimensions. Lead times vary, pleace contact us for the latest update on lead times for rooflight stock items.
Our flat fixed rooflights are suitable for both flat and pitched roofs made of slate, tile, zinc or any other roof material, due to the independent upstand. You will need to create the upstand/kerb and then weather it with your roof material e.g. single-ply membrane, GRP, fibreglass etc. Our rooflight will then sit and seal against your weathered upstand. We provide you with all the fixings you need. You do not need any additional flashing kits with our fixed rooflights.
Yes, we do provide a self-cleaning option. Details are on request.
The maximum size is 2m x 3m for a fixed non-opening rooflight, which can be installed on a pitched roof.
Yes our rooflight sizes include a 10mm tolerance, so you can build the kerb to the same size as the size stated on the website.
Download this maunal for a complete overview of your Secured By Design fixed rooflight.
Download this technical drawing for guidance on the installation of your fixed rooflight into a pitched roof.
Download this technical drawing for guidance on the installation of your rooflight.
Download this manual for more information on setting out your upstand for rooflight installation.
Download our set of BIM files fo use in compatible applications and architectural use.
Stock items are usually delivered within 1-2 days (*subject to availability). Rooflights in custom sizes have a lead time of 3-4 weeks and subject to workload at the time of ordering.
We provide free delivery for rooflights across most of mainland UK. Outside of this area you are welcome to pick your rooflight up from our factory or we can provide a courier.
If you have a non-standard size, custom requirements or not quite ready to order, why not send our product experts a quick message?
We’ll endeavour to answer your query quickly!
