What Is the Most Common Defect in a Flat Roof?
Flat roofs are a popular choice across Sevenoaks, but like any roofing system, they are not without their weaknesses. At S Harris Roofing, we regularly carry out flat roof repairs in Sevenoaks, and one question we often get asked is: what is the most common defect in a flat roof?
The Most Common Flat Roof Defects
- Ponding Water – Water pooling due to poor drainage is the number one issue with flat roofs.
- Membrane Cracks & Splits – Over time, felt, GRP, and even EPDM can crack under UV exposure or movement.
- Loose Flashings – Faulty or aged flashing around chimneys, skylights, or edges often causes leaks.
- Poor Installation – A flat roof not fitted with the correct fall will always develop problems early.
- Lack of Maintenance – Blocked gutters and moss growth can accelerate roof deterioration.
How to Prevent These Problems
- ? Regular inspections – at least twice a year
- ? Keep gutters and outlets clear
- ? Address minor cracks before they spread
- ? Always use a qualified roofer for installations and repairs
Why Choose S Harris Roofing?
- Local experts in flat roof repairs across Sevenoaks
- Fast response for leaks and urgent problems
- Affordable, transparent pricing
- High-quality materials including EPDM, GRP, and felt
- Workmanship guarantees for peace of mind
If you’re experiencing problems with your flat roof, contact us today for a free inspection and professional advice.
FAQs – Flat Roof Defects in Sevenoaks
What is the biggest cause of flat roof leaks?
Ponding water and cracked membranes are the most common culprits.
How long should a flat roof last?
With proper installation and maintenance, EPDM and GRP systems can last 25–40 years.
Can you fix ponding water on a flat roof?
Yes, we can improve drainage and repair the roof surface to prevent water buildup.
Do small cracks always need repairing?
Yes – small cracks grow quickly and will lead to leaks if not fixed.
Do you provide free quotes?
Absolutely – we offer free, no-obligation quotes for all flat roof repairs in Sevenoaks.
For expert help with flat roof defects in Sevenoaks, trust S Harris Roofing – your local roofing specialists.
