Flat Roof Replacement – Alton, Hampshire
We recently completed a full flat roof replacement in Alton, Hampshire, where the existing roof system had failed and was allowing water to penetrate into the structure below.
Following a full strip back, it became clear that prolonged water ingress had caused significant deterioration within the roof build-up, including damaged decking, saturated insulation, and weakened areas around the perimeter and abutments.
To ensure a long-term solution, we carried out a complete rebuild of the flat roof system, restoring both the structure and waterproofing from the deck upwards.
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Scope of Works
• Full removal of the existing failing flat roof covering
• Strip back to the structural framework
• Identification and removal of all compromised materials
• Replacement of damaged timber and roof decking
• Installation of new high-quality OSB roof boards
• Formation of a clean, level and structurally sound substrate
• Installation of a 3-layer high-performance torch-on felt system
• Detailing to all upstands, edges, and abutments for complete weather protection
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System Build-Up
The new flat roof was constructed using a modern multi-layer felt system, designed for durability, flexibility, and long-term resistance to the UK climate.
This system provides:
• Excellent waterproofing performance
• Increased lifespan compared to older felt systems
• Strong resistance to UV exposure and temperature changes
• A seamless, professional finish across the entire roof area
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The Result
The completed flat roof in Alton, Hampshire is now fully watertight, structurally reinforced, and built to last.
By stripping the roof back and rebuilding it correctly, we’ve eliminated the risk of hidden defects and ensured the property is protected for years to come.
The finished surface delivers a clean, uniform appearance, significantly improving both performance and overall presentation.
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Why Full Replacement Was Required
In cases like this, where moisture has penetrated beneath the surface, repairs are often only a temporary fix.
A full replacement allows:
• Removal of all hidden damage
• Restoration of structural integrity
• Correct installation of modern waterproofing systems
• Long-term peace of mind for the property owner
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Flat Roofing Specialists in Alton & Hampshire
We provide professional flat roof replacements, repairs, and installations across Alton, Hampshire, and surrounding areas, using high-quality materials and proven systems built for longevity.
Whether dealing with a leaking roof, ageing felt system, or structural issues, we deliver reliable, long-term roofing solutions tailored to each property.
