Designed & Manufactured In The UK

Free UK Delivery (Exclusions Apply*)

Secured by Design (Part Q) Circular Rooflights

Secured By Design circular rooflights meet the requirements set out in The Building Regulations Approved Document Part Q: Security in Dwellings (2015 Edition).

Prices from

From £1,800.00

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Secured by Design (Part Q) Circular Rooflights 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
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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 Or
Call 0116 2610 710 (Option 1)

Duplus Secured by Design (Part Q) Circular 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

Double-glazing included (Contact us for a triple-glazed price)
Delivery 3-4 weeks
Double-glazing included (Contact us for a triple-glazed price)
Delivery 3-4 weeks
Double-glazing included (Contact us for a triple-glazed price)
Delivery 3-4 weeks
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!"

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

Description

Our Secured By Design circular 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 rooflights 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.

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 standard all double glazed units incorporate clear low ‘E’ glass achieving a centre pane U-value of 1.1 W/m²K.

Unlike traditional ‘stepped edge’ glass rooflights where the outer edge of the glass is vulnerable to breakage, our rooflights 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.

Our Secured By Design circular rooflight is structurally silicone glazed to give a sleek, elegant appearance with exceptional strength and rigidity. Our product is delivered fully assembled and is very easy to install. The framework of our circular roof light is manufactured from an extruded aluminium profile that is curved using our in-house rolling machinery. This enables us to produce a wide range of circular rooflight sizes to meet your specific requirements.

Very easy to install and available in sizes from 1000mm diameter to 2000mm diameter without the requirement for intermediate bars.

Our circular rooflight achieves outstanding thermal performance. True U-value and Ud-value available upon request.

The extruded aluminium perimeter frame is powder-coated RAL 9005 black matt as standard. Other RAL colour options are available upon request.

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 Diameter, 1500mm Diameter, 1800mm Diameter, 2000mm Diameter

FAQ's

The largest circular rooflight we can offer is 2000mm diameter external kerb dimension.

Yes, we offer circular walk-on rooflights. Our standard circular rooflights are not walk-on. Please contact Duplus for a quotation.

Downloads

Circular Rooflight Manual

Download this manual for a complete overview of your Secured By Design circular rooflight.

Upstand Instructions

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

Circular Rooflight Installation

Download this technical drawing for guidance on the installation of your circular rooflight.

BIM Drawings

Download the BIM drawings for the Duplus circular rooflight

Related Products

Why Duplus Secured by Design (Part Q) Circular Rooflights?

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.

Give us a call on 0116 2610 710 (Option 1) To Order

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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 in Leicester or we call us on 0116 2610 710 and 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!

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