Analysing the performance and condition of your roof
The purpose of our Roof Condition Survey is to give you an indication of the current performance, condition and expected lifespan of an existing roof.
Our Flat Roof Condition Surveys give you a clear indication of key risk areas, helping you spot problems early and prevent internal leaks.
You’ll receive a detailed report with clear findings, photos and practical recommendations to help budget for maintenance or replacement.
How We Test
Roof Inspection Surveys can be integrated with other test procedures aimed at establishing the integrity of the waterproofing layer, determining build-up and condition of the elements below, such as insulation. We use a number of test techniques to produce our surveys:
Electronic Leak Detection
The process involves electronic leak detection of the waterproof covering and is typically undertaken by one of two methods, depending on the roof build-up and waterproofing to be tested. Both test methods rely on the electrically conductive properties of the substrate and insulating properties of the waterproofing for accurate detection of breaches and is suitable for most types of membranes. The test can be undertaken to both horizontal and vertical waterproofing, ensuring the entire roof is tested.
Infra-Red Thermography
This is a very useful diagnostic method to find hidden water and moisture issues without resorting to destructive testing.
It can establish breaks in the insulation in buildings and where leaks occur then trace them. As it is a non-contact process it is particularly useful for locating heat loss/gain or moisture problems within the building envelope.
Our site personnel conducting Infra-red Surveys are trained to ITC Category 1 Thermography, or higher.
Moisture Profiles
This process uses an electrical capacitance technique, whereby electric discharge is reflected back by moisture, thus allowing high levels of moisture to be detected below the waterproofing membrane without disturbing it.
By measuring relative moisture content across structures such as roofs, a moisture profile can be developed that often points towards the leak source.
Moisture profiling can also identify damage to insulation and provides guidelines as to whether the roof should be replaced.
This is typically combined with core samples of the roof which provide important information on the roof construction and allow accurate calibration of the test equipment.
Technical Audit
We can audit structural items which are considered a potential source of water ingress into the structure so that a comprehensive programme of remedial repairs can be produced.
Roof condition surveys are a useful tool for facilities management teams, landlords, developers, contractors or anyone undertaking building refurbishments or maintenance to buildings with flat roofs.
It is also beneficial as part of a regular roof maintenance program and can be incorporated with our roof leak detection service to remain pro-active in preventing roof leaks.
With more than 40 years of roofing consultancy experience, our team of specialist consultants are able to undertake surveys on a variety of buildings from large commercial facilities and office blocks to car parks and residential buildings, such as apartment blocks.
Roof Condition Surveys FAQs
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1. What is the benefit of a roof condition survey?
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- Establish the current condition and performance of an existing roof
- Identify defects in the waterproofing system and other elements of the structure before leaks occur
- Plan maintenance and capital expenditures
- Minimise the likelihood leaks
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2. What types of roofs can be surveyed?
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- Flat and low-slope roofs
- Single ply membranes
- Built-up felt systems
- Asphalt roofs, car parks and loading bays
- Green, brown & blue roofs
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3. Is a roof condition survey non-destructive?
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Yes, depending on the scope of the survey. Typical test methods used are:
- Electronic leak detection
- Roof moisture profile
- Infra-red thermography
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4. Will the survey be disruptive.
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No. A roof condition survey is unlikely to be disruptive to occupants as test are typically non-invasive and quiet.
Speak to an Expert About Your Project
Call us on 01342 410508, email us at mail@thorntonconsulting.co.uk or send us a message using the form below. A friendly member of our team will be in touch shortly.
Client Testimonials
Roof Condition Blog & Case Studies
To find out more about Electronic Leak Detection and how we use it in our work read our case studies and blogs below.
Get in Touch Today
Call us on 01342 410508, email us at mail@thorntonconsulting.co.uk or send us a message using the form below. A friendly member of our team will be in touch shortly.
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