Let natural light and fresh air flow into your space with the Coxdome Manual Opening Roof Dome—a practical and cost-effective choice for flat roof applications. Whether you're working on a home extension, stairwell, hallway, or commercial project, this rooflight adds brightness and ventilation in one simple solution.
This model features double-skin polycarbonate glazing, offering great thermal performance and durability, while the 150mm thermally broken PVC-u upstand helps prevent heat loss and condensation. With a manual opening mechanism, you can easily control airflow—perfect for rooms that benefit from occasional ventilation without relying on electricity or complex controls.
Available in clear or diffused glazing and a wide range of sizes (from 600mm to 3,000mm), this rooflight is designed for versatility. Its universal design ensures a smooth installation process and a snug, weatherproof fit for most flat roofing systems.
Why Choose the Coxdome Manual Opening Dome?
Natural daylight + fresh air – Combines ventilation and illumination
Manual opening – Easy-to-use crank handle or spindle for ventilation on demand
Double-skin glazing – Provides insulation and sound reduction
Thermally broken PVC-u upstand – Minimises condensation and boosts energy efficiency
Impact-resistant dome – 3mm polycarbonate for long-lasting durability
Clear or diffused options – Choose the look and privacy level that suits your space
Compatible with all flat roofing types – Including GRP, single ply, asphalt, liquid, hot melt, and lead
Performance at a Glance
U-Value: 2.7 W/m²K (double skin)
Sound Reduction: 20dB
Fire Classification: B-s1-d0 (BS EN15301:1 2007)
Non-Fragile Certification: Class B (ACR[M]001 soft body tested)
Glazing Material: 3mm impact-resistant polycarbonate
FAQs
How is the manual opening operated?
The dome is typically opened using a winding handle or spindle opener. This makes it ideal for spaces where electric access isn’t available or where simple, manual control is preferred.
Is the roof dome secure when closed?
Yes, it features high-security fixings and seals tightly when shut, providing a secure and weather-resistant barrier against rain and wind.
Can I install this on any flat roof system?
Yes! The Coxdome Classic Range is compatible with most flat roofing types, including GRP, single ply, hot melt, asphalt, lead, and more. Just ensure it’s installed on a suitable upstand or use the included 150mm PVC-u upstand for best results.
Absolutely. Check availability at your nearest branch during checkout or contact us directly.
Do you offer bulk pricing or trade discounts?
Yes, we offer competitive rates for trade customers and bulk orders. Contact our team for a tailored quote.
What if the product arrives damaged?
Please notify us within 48 hours of delivery. We’ll arrange a prompt replacement or refund as needed.
How fast is the delivery time?
Most items are delivered within 2–5 working days, depending on stock and location. Some products may take longer times.
What is the Return Policy?
We accept most returns within 14 days of delivery, provided the items are unused, in their original packaging, and in resalable condition. Please contact our customer service team to arrange a return or discuss any concerns.
Over 35 Years of Trading
+£3M Stock Value
Best Price Promise
10 Branches Across London & South East
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