Best Flat Roofing Materials for Ashford Homes
Flat roofs are a common choice for extensions, garages, porches and garden rooms across Ashford. They’re practical, cost-effective and can be built with a modern, discreet appearance that suits many property styles.
But with several different materials available — each with their own benefits and lifespan — it can be hard to know which option is right for your home. In this guide, we break down the most popular flat roofing materials used in Ashford, how long they last, and what you can do to keep yours in good condition.
Why Flat Roofs Are Popular in Ashford
Flat roofs are widely used on properties throughout Ashford because they’re:
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- Suitable for extensions and single-storey additions
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- Affordable compared to pitched roofing
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- Quick to install
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- Modern in appearance
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- Easy to repair and maintain
Many homes in areas like Kingsnorth, Willesborough, Kennington and Great Chart rely on flat roofs for kitchen extensions, garages and converted outbuildings — so choosing the right system matters.
Best Flat Roofing Materials for Ashford Homes
Below are the most common flat roofing systems we work with in Ashford, along with their advantages and expected lifespan.
1. GRP Fibreglass Roofing
Lifespan: 20–30 years
Best for: Extensions, garages, garden rooms, porches
GRP (Glass Reinforced Plastic) is one of the most durable and low-maintenance flat roofing systems available. It provides a completely seamless waterproof layer, making it an excellent choice for long-term protection. It also looks clean, modern and is available in several finishes.
Benefits:
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- Seamless waterproofing
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- Very long lifespan
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- Low maintenance
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- Strong and impact-resistant
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- Good value for money
2. EPDM Rubber Roofing
Lifespan: 25–30 years
Best for: Large extensions, outbuildings, commercial roofs
EPDM is a synthetic rubber membrane that comes in large sheets, reducing the number of joins. It’s flexible, tough and highly resistant to UV damage, making it ideal for roofs exposed to long sunlight hours.
Benefits:
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- Extremely durable
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- Low maintenance
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- Installed in large sheets
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- Resistant to cracking and shrinkage
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- Eco-friendly option
3. Torch-On Felt Roofing
Lifespan: 10–15 years
Best for: Garages, older flat roofs, budget projects
Modern felt roofs are much stronger than older versions and still offer a budget-friendly option for certain projects. With proper installation and ventilation, felt can perform very well on smaller roofs.
Benefits:
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- Affordable
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- Suitable for small roofs
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- Quick installation
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- Multi-layer protection
How to Maintain a Flat Roof in Ashford
Flat roofs need less maintenance than most people think — but a few simple steps will extend their lifespan:
✔ Check gutters and outlets regularly
Blocked drainage can cause standing water, which leads to faster wear.
✔ Inspect for damage after storms
High winds in Ashford can lift edges or dislodge flashing.
✔ Keep the roof surface clear
Remove debris, moss and leaves to prevent moisture build-up.
✔ Have a roofer inspect every few years
A quick professional check can identify minor issues before they become expensive repairs.
When to Replace a Flat Roof
Here are signs your flat roof may need repairing or replacing:
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- Persistent leaks
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- Cracks, splits or blisters
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- Ponding water that doesn’t drain
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- Loose edges or lifted seams
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- Visible sagging in the roof deck
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- 15+ years old (felt roofs especially)
If you’re unsure, a quick inspection is usually enough to determine the best solution.