Looking for an efficient way to upgrade your flat roof without the need for a full re-roof? At LDN Watertight, we offer professional flat roof overlays in London, extending the life expectancy of your existing roof while improving performance, durability, and compliance with current building regulations.
A flat roof overlay involves adding a new layer of roof covering over the existing roof system—provided the structure remains sound and dry. This method avoids the disruption and cost of a full strip-down, making it ideal in many instances where no significant damage or entrapped moisture is found.
We conduct thorough core samples and further investigation to assess the roof deck, internal conditions, and any signs of damp surfaces or ingress problems. If the existing structure and roof deck formed can safely accept an overlay system, we install high-performance roofing systems with modern waterproofing membranes and insulation to enhance thermal performance.
In every flat roof overlay system, we account for imposed loading, cold roof design issues, and poorly ventilated areas. Our experts work closely with a structural engineer when necessary, ensuring the proposed system meets all building regulations.
A roof overlay isn’t suitable for every roof. In cases where poor detail design contributed to failures in the old roof, or where internal conditions are unbalanced, more depth works or even a complete uplift may be required. That’s why the main task is always a full assessment, which may include sourcing advice from a structural engineer.
However, in many instances, overlays are the perfect solution—especially when the existing roof is generally sound, and inherent problems are minor. After assessment, we’ll provide a tailored recommendation on whether corrective works or a new roof is required, or whether an overlay will achieve long-term protection and compliance.
We’re experienced in delivering overlay roofing systems across commercial and residential sites, always with a focus on quality and compliance. Our team understands the complex considerations that come with installing a flat roof overlay system, from moisture checks to detail work and proper compatibility with the existing roof.
We help homeowners, landlords, and businesses in London make informed decisions that balance cost, longevity, and safety. If poor detail design, outdated materials, or internal conditions are causing concern, we’ll advise you on the best course of action, whether that’s an overlay or a full replacement.
With years of experience and a commitment to high standards, we’ll ensure your roof overlay not only resolves above issues but also improves insulation, ventilation, and structural integrity in line with current building regulations.
Need help from the best roofers in London? Whether it’s fixing roof leaks, replacing roof tiles, or managing a full roofing project, we’ve got you covered. Contact LDN Watertight today for a free quotation and discover why we’re a top-rated family-run roofing company in the capital.
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