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Designed & Manufactured In The UK

Free UK Delivery (Exclusions Apply*)

Secured By Design (Part Q) Roof Lanterns

Secured By Design low pitch roof lanterns meet the requirements set out in The Building Regulations Approved Document Part Q</a>: Security in Dwellings (2015 Edition).

Prices from

From £1,667.00

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Secured By Design (Part Q) Roof Lanterns Come With The Following Features:

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Quality As
Standard

Quality As Standard

Fully factory assembled to ISO:9001 and Dow Corning® Quality Bond™ accredited
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Weather
Tightness

Weather-tightness Tested

BRE tested to BS EN 14351-1:2006 +A1:2010 clauses 4.2, 4.5 and 4.14
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Thermal
Performance

Thermal Performance

High resistance to condensation under normal conditions compared to framed versions
warranty icon

Quality As
Standard

Quality As Standard

Fully factory assembled to ISO:9001 and Dow Corning® Quality Bond™ accredited
snowflake sun logo

Weather
Tightness

Weather-tightness Tested

BRE tested to BS EN 14351-1:2006 +A1:2010 clauses 4.2, 4.5 and 4.14
thermometer logo

Thermal
Performance

Thermal Performance

High resistance to condensation under normal conditions compared to framed versions
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Frameless
Design

Frameless Design

Frameless hips and ridge - Glass to glass joints internally creates a sleek frameless aesthetic
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Frameless
Design

Frameless Design

Frameless hips and ridge - Glass to glass joints internally creates a sleek frameless aesthetic
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Building
Regulations

Building Regulations

Rooflights meet or surpass the U-value requirements of Part L Building Regulations
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Easy
Fit

Easy Fit

Rooflights delivered fully assembled. No additional kits necessary. Higher security compared to kit versions.

Configure Your Rooflights

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

SELECT YOUR ROOFLIGHT SIZE

fixed rooflight no tint
Standard
fixed rooflight grey tint
Grey (+£19.50)
fixed rooflight bronze tint
Bronze (+£19.50)
fixed rooflight blue tint
Blue (+£63.00)
fixed rooflight arrow bounce
High Performance Solar Control (+£75.00)
Double-glazing included (Contact us for a triple-glazed price)
Delivery 3-4 weeks
fixed rooflight no tint
Standard
fixed rooflight grey tint
Grey (+£26.00)
fixed rooflight bronze tint
Bronze (+£26.00)
fixed rooflight blue tint
Blue (+£84.00)
fixed rooflight arrow bounce
High Performance Solar Control (+£100.00)
Double-glazing included (Contact us for a triple-glazed price)
Delivery 3-4 weeks
fixed rooflight no tint
Standard
fixed rooflight grey tint
Grey (+£24.70)
fixed rooflight bronze tint
Bronze (+£24.70)
fixed rooflight blue tint
Blue (+£79.80)
fixed rooflight arrow bounce
High Performance Solar Control (+£95.00)
Double-glazing included (Contact us for a triple-glazed price)
Delivery 3-4 weeks
fixed rooflight no tint
Standard
fixed rooflight grey tint
Grey (+£23.40)
fixed rooflight bronze tint
Bronze (+£23.40)
fixed rooflight blue tint
Blue (+£75.60)
fixed rooflight arrow bounce
High Performance Solar Control (+£90.00)
Double-glazing included (Contact us for a triple-glazed price)
Delivery 3-4 weeks
fixed rooflight no tint
Standard
fixed rooflight grey tint
Grey (+£22.10)
fixed rooflight bronze tint
Bronze (+£22.10)
fixed rooflight blue tint
Blue (+£71.40)
fixed rooflight arrow bounce
High Performance Solar Control (+£85.00)
Double-glazing included (Contact us for a triple-glazed price)
Delivery 3-4 weeks
fixed rooflight no tint
Standard
fixed rooflight grey tint
Grey (+£20.80)
fixed rooflight bronze tint
Bronze (+£20.80)
fixed rooflight blue tint
Blue (+£67.20)
fixed rooflight arrow bounce
High Performance Solar Control (+£80.00)
Double-glazing included (Contact us for a triple-glazed price)
Delivery 3-4 weeks
fixed rooflight no tint
Standard
fixed rooflight grey tint
Grey (+£39.00)
fixed rooflight bronze tint
Bronze (+£39.00)
fixed rooflight blue tint
Blue (+£126.00)
fixed rooflight arrow bounce
High Performance Solar Control (+£150.00)
Double-glazing included (Contact us for a triple-glazed price)
Delivery 3-4 weeks
fixed rooflight no tint
Standard
fixed rooflight grey tint
Grey (+£32.50)
fixed rooflight bronze tint
Bronze (+£32.50)
fixed rooflight blue tint
Blue (+£105.00)
fixed rooflight arrow bounce
High Performance Solar Control (+£125.00)
Double-glazing included (Contact us for a triple-glazed price)
Delivery 3-4 weeks

"Very friendly and helpful customer service throughout the purchasing process. Very nice and good quality rooflights!"

Secured By Design logo

Secure by Design - Building regulations Part Q compliant solution available. Please Call: 0116 2610 710

Description

Duplus Secured By Design Roof Lanterns

Our Secured By Design roof lantern 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 roof lanterns conform to the requirements set out in The Building Regulations Approved Document Part Q (Secured by Design). The test involves a timed manual attack using various methods to determine whether the rooflight can withstand an attack by an intruder.

Advanced Features

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).

Unlike traditional ‘stepped edge’ glass rooflights where the outer edge of the glass is vulnerable to breakage, our secure roof lanterns fully enclose the double-glazed units within the perimeter framework to eliminate this risk. The top surface of the double-glazed unit is flush with the external face of the perimeter frame to allow rainwater to disperse rapidly, minimising cleaning and maintenance requirements.

Easy Installation

As with all our rooflight products, this Secure By Design roof lantern 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 builders kerb externally and a matching cover clip is then applied to conceal the fixings.

This roof lantern is also available without external cappings for a truly frameless external appearance.

Modern Design

Our accredited structural silicone glazing techniques enable us to produce our 30-degree frameless low-pitch Secured By Design roof lantern. Frameless in design and no requirement for an internal framework to the product hips or ridge. When looking up at the roof lantern, the external hip and ridge cappings are designed to remain unseen. The internal finish of the glass-to-glass joints creates a sleek, ’frameless’ contemporary aesthetic that is truly jaw-dropping.

Material Specifications & U-Value

The extruded thermally broken aluminium perimeter frame is powder-coated RAL 7016 Anthracite grey matt externally and RAL 9910 white matt internally as standard. External hip and ridge cappings are fitted for aesthetics and are powder-coated RAL 7016 Anthracite grey matt to match the external perimeter frame at the base of the lantern rooflight. Other RAL colour options are available 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. Please refer to our FAQ section for an explanation of heatsoaked glass.

Delivered FULLY ASSEMBLED. No need for time-consuming assembly on-site. 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 >>

Additional information

Size

1000mm x 1500mm, 1000mm x 1600mm, 1000mm x 1700mm, 1000mm x 1800mm, 1000mm x 1900mm, 1000mm x 2000mm, 1000mm x 2500mm, 1000mm x 3000mm

FAQ's

The biggest roof lantern we manufacture is 5.8m x 2m external kerb dimension. There is a single central glazing bar along each length.

The steepest pitch we offer is 40 degrees, with a maximum length of 5.8m and maximum width of 2m. There is a single central glazing bar along each length.

Unfortunately, we do not provide openers on our roof lanterns. Our lantern rooflights are frameless and therefore no frame to carry the opening window. You may however wish to view our opening rooflight range that does have openers.

The advantage of roof lanterns over rooflights is a tendency to let more light in, due to the pyramid-style construction. Duplus provide frameless designs, so no framework at the hips or ridge, increasing the amount of light that enters the room.

Not at all. Any glazing primarily south / south west facing, will attract a lot more sunlight and therefore solar heat than glazing facing any other orientation. In such instances, we would recommend incorporating high-performance solar control glazing, as it will retract most of the solar heat, whilst maintaining maximum natural light.

No by their very shape, one wouldn’t walk on a roof lantern! However, we do provide walk-on rooflights.

The width of external decorative trims that protect the glass on our lantern rooflights is 54mm wide overall.

Not necessarily. This can spoil the aesthetics of your frameless lantern. There are many other ways to achieve the required ventilation. Most of your ventilation will come from windows, sliding doors or bi-folding doors. On a warm sunny day, you will most likely have the windows and doors open. This will provide ample ventilation. If you are looking to achieve cross-ventilation, you can incorporate ventilation within the upstand, just below where the rooflight sits.

For external cleaning we can help. We can apply an easy clean coating to the glass which will help keep the glass clean. However, you may hear of ‘self-cleaning’ glass. There is no such product on the market. Most products only help reduce maintenance periods and still require periodic cleaning. However, in most instances easy clean will help keep the glass looking cleaner for longer. Internally, the lantern will require cleaning with warm soapy water but usually no more than once a year.

The height for a 30 degree lantern at 1 metre wide, including packaging is approx. 400mm and the height for a 40 degree lantern at 1 metre wide, including packaging is approx. 540mm.

Downloads

Roof Lanterns Manual

Download this manual for a complete overview of your roof lanterns.

Upstand Instructions

Download this manual for more information on setting out your upstand for roof lantern installation.

Roof Lantern Installation

Download this manual for general information for installation of your roof lantern.

Kerb/Upstand Details

Download further details for the kerb/upstand installation detail for the Duplus roof lantern.

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Why Duplus Secured By Design (Part Q) Roof Lanterns?

Over 60 Years Of Experience

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Interested in Ordering?

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.

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Delivery or Collection

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.

Make An Enquiry

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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!