1. Cold Roof vs Warm Roof – What’s the Difference?
Cold Roof Systems:
In a cold roof, insulation sits below the roof deck. This leaves the deck and timbers exposed to cold air, leading to condensation, damp, and rot. Thermal bridging also allows heat to escape through rafters, reducing energy efficiency.
Warm Roof Systems:
A warm roof places insulation above the roof deck, keeping the entire structure within the building’s thermal envelope. The system includes a vapour control layer (VCL), high-performance insulation, and a waterproof membrane — delivering better comfort, reduced heat loss, and extended roof life.
2. Benefits of a Warm Roof for London Properties
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Energy Efficiency: Reduces heat loss and lowers heating bills by up to 25%.
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Condensation Control: Prevents moisture build-up and timber decay.
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Regulation Compliance: Meets modern standards (Part L, BS 5250, BS 6229).
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Comfort & Health: Creates a warmer, drier indoor environment with stable temperatures.
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Durability: Withstands temperature fluctuations, reducing maintenance and leaks.
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Property Value: Adds appeal to buyers with improved insulation and efficiency.
3. Key Considerations Before Installation
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Roof Height & Edges: Insulation adds height; we ensure proper drainage and neat finishes.
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Vapour Control Layer: Proper installation prevents internal condensation.
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Membrane Quality: We use high-performance, weather-resistant systems suitable for the UK climate.
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Insulation Thickness: Designed to meet required U-values for efficiency.
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Professional Installation: Carried out by experienced roofers to ensure compliance and performance.
4. Our Warm Roof Systems
At London Roofing, we install and upgrade warm roofs using premium materials and proven systems, including:
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PIR Insulation Boards – Exceptional thermal performance.
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EPDM Rubber Roofing – Durable, low-maintenance waterproofing.
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GRP Fibreglass Roofing – Perfect for balconies and walkable roofs.
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High-Performance Vapour Control Layers – Complete moisture protection.
Our skilled team ensures every installation is energy-efficient, watertight, and built to last.
5. Why Choose London Roofing for Your Warm Roof Upgrade
✅ Experienced London roofing specialists with decades of flat roof expertise
✅ Fully compliant installations meeting all UK Building Regulations
✅ Premium materials and trusted roofing systems
✅ Honest advice, detailed surveys, and transparent pricing
✅ Professional service across Central and Greater London
6. Contact London Roofing
Upgrading to a warm roof system is one of the best ways to enhance your property’s comfort, efficiency, and durability.
📞 Call us today on 020 3576 7118
📧 Email: contact@londonroofer.co.uk
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