Flat Roofs Across the Wirral
Flat roofs take more punishment than pitched roofs and fail faster if the wrong material or fall is used — which is exactly what’s often found on extensions, garages, dormers and bay window roofs across the Wirral. All Round Roofing Specialists installs and repairs flat roofing using modern GRP fibreglass and, where appropriate, high-performance felt systems.
GRP fibreglass is the preferred option for most domestic flat roofs now: it’s laid as a seamless membrane, so there are no joints for water to find, and a properly installed system will comfortably outlast old-style felt.
Signs You Need Flat Roofs
- Standing water (ponding) still visible on the roof more than 48 hours after rain
- Bubbling, blistering or cracking across the surface of a felt roof
- Cracks or splits, especially around edges, upstands and pipe details
- A leak appearing inside on a ceiling below a flat-roofed extension, garage or dormer
- A felt roof that’s over 15–20 years old and showing general surface degradation
Materials We Use
GRP (fibreglass) is used for most new installations and full replacements — a rigid, seamless, UV-stable membrane. High-performance torch-on or self-adhesive felt systems are used where they’re the better fit for the structure or budget. Correct falls are built into the deck to shed water rather than let it pond, which is the single biggest cause of flat roof failure.
How It Works
- 1Survey to check the condition of the roof deck as well as the covering — a new covering on rotten plywood won’t last
- 2Fixed quote covering deck repairs (if needed) and the full covering replacement
- 3Old covering stripped and deck inspected, with damaged plywood replaced
- 4Correct fall built in during the deck build-up to prevent ponding
- 5New GRP or felt system installed with properly detailed edge trims and upstands
Insurance & guarantee
GRP flat roofs are typically good for 20+ years when installed correctly. All flat roof work is fully insured, with a workmanship guarantee covering the installation.
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Frequently Asked Questions
GRP fibreglass or felt — which is better?+
GRP is generally the better long-term option for domestic flat roofs — seamless, low-maintenance, and typically longer-lasting. Felt can still be the right call on certain structures or budgets, and this gets discussed honestly at survey stage rather than defaulting to the more expensive option.
Why does my flat roof keep leaking in the same spot?+
Recurring leaks in one place are usually a sign of standing water or a detail (an upstand, pipe, or edge trim) that was never sealed correctly the first time, rather than general wear across the whole roof.
Can you repair a small section instead of replacing the whole roof?+
Where the deck underneath is sound, a localised repair is often possible. Where the deck has taken on water and rotted, patching won’t hold and a fuller replacement is the honest recommendation.
Need flat roofs?
Free surveys across the Wirral. Call Ian directly or send the details online.