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Flat Roof Integrity Testing
Flat Roof Testing Services
At GeoShield, we specialise in flat roof integrity testing, including Electronic Leak Detection testing and Roof Condition Inspections, helping you stay compliant with British Standards and warranty provider clauses.
The UK’s current guidance document for Flat Roofs is BS 6229:2025, this document states that flat roofs should be inspected twice a year.
Contact UsRoof Waterproofing Guidance
Premier Guarantee states: If testing to demonstrate waterproofing integrity is required it should be undertaken by a suitably qualified and experienced third party who is independent of the roofing contractor.
CIRIA – Blue Roofs – a guide to implementation: Before handing over the waterproofing system, it should be tested by an independent third party to confirm integrity, such as a RAWTA or equivalent.
NHBC Technical Standards Chapter 7.1.9: recommends that before covering a roofing membrane it should be visually inspected and electronically tested for waterproofing integrity.
Book Your Flat Roof Integrity Test Today
If you need flat roof integrity testing or condition report, our team is ready to help.
Contact us today to schedule an inspection visit or request a quote.
Nationwide Coverage
24hr rapid response
Flat Roof Integrity Testing in Action
Watch our expert team at GeoShield perform flat roof integrity testing for one of our clients.
Certified Waterproofing Services
GeoShield are proud members of RAWTA (Roofing and Waterproofing Test Association), LRWA (Liquid Waterproofing Association) and GRO (Green Roof Organisation).
We are able to test flat roofs, podium decks, buried decks, balconies, warm/cold flat roofs, blue roofs and green roofs (Prior to covering).
We use several testing methods including high voltage ELD, low voltage ELD, moisture mapping, vacuum testing, pick and probe seam testing and visual inspection.
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Independent Integrity Testing
If your building has a flat roof – we test the joints, corners, upstands and all details, as well as the body of the membrane for defects. This ensures:
– The roof is watertight
– Compliance with warranty provider clauses
– Reduced risk of future damage and disruption due to water ingress
Detailed Reports
Following flat roof integrity testing, we provide a clear, comprehensive report including:
– Evidence of the tests undertaken
– Any faults, punctures or areas of concern
– Photographic evidence
Our reports are easy to interpret and suitable for regulatory compliance, tenant communication or internal safety management.
Why Choose GeoShield?
Experienced integrity testing specialists
As members of RAWTA, we bring specialist knowledge of roof and deck integrity testing. Our team understands the importance of accurate testing, reliable reporting and practical advice that helps protect your building from costly water ingress issues.
Fast turnaround
We know how important your project is. That’s why we provide a responsive service for integrity testing and reporting, supported by a rapid response team available within 24 hours to help keep things moving.
Flexible service options
Our services cover integrity testing for newly installed roofs and decks, as well as condition reports for existing roofs. Whether you need testing for handover, warranty purposes or peace of mind, we tailor our approach to suit your project.
Safety and clarity first
We take pride in delivering a thorough, professional service that puts safety, quality and clear communication at the heart of everything we do.
Commonly Asked Questions
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Yes, we have several non-destructive test methods including ELD (Electronic Leak Detection) equipment.
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We have high voltage leak detection equipment that can find damage to the waterproofing element of the roof, therefore testing a dry roof is no problem.
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Yes, using low voltage (wet testing) equipment it is very safe to test a wet roof.
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Most warranties provided require independent integrity testing, and all the major warranty providers make this a requirement.
NHBC Standards Chapter 7.1, Clause 7.1.11
LABC Technical Manual V11, Section 11.6.14 – Flat Roofs: Testing, approved installer and periodic inspection requirements
Premier Guarantee Technical Manual V13, Section 11.6.13 – Flat Roofs: Approved installers and testing requirements
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There are several reasons to test an existing roof. Firstly, a roof that you may intend to completely replace could just need a small amount of repair work, saving money and inconvenience. Secondly, BS6229:2025 stipulates that flat roof should be inspected twice annually, this can often be a clause in a buildings insurance policy.
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Yes, with our Dec Scanner we are able to provide a full moisture map of your roof, this forms part of our condition report survey.
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Yes, it is arguably more important to get the waterproofing element of blue and green roofs tested as they are then covered by the blue or green element. Discovering a leak after installing and having to remove the sedum or attenuation system is very disruptive and expensive.
LABC Warranty Technical Manual V11 — Section 11.9.3: Blue Roofs
GRO Green Roof Code — Section 3.3.1: Waterproofing Inspection
GRO Green Roof Code — Installation section: Waterproof covering to be tested and approved before works begin
LABC Warranty Technical Manual V11 — Section 11.7.4: Green Roofs
“Throughout our 4 year professional relationship, the Geoshield team consistently demonstrated a high level of integrity, reliability, and professionalism.”
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