How Long Does a Flat Roof Last Before It Needs Renewal?

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Flat roofs are commonplace on commercial buildings throughout the UK. As a commercial roofing contractor covering London and the South East, we are often asked about the lifespan of flat roofing systems.

Firstly, it is important to note that there are several factors at play which determine the durability of a flat roof, and, therefore, its lifespan.

One can expect a well-installed, well-maintained flat roof to last for many decades. Generally speaking, the lifespan of a flat roof tends to be between 20-25 years, and it is certainly possible to exceed this figure, dependent on, amongst other factors, the flat roofing system used.

For example, a well-installed EDPM rubber membrane may last up to 50 years, whereas other flat roofing systems, such torch-on felt, may last between 25-30 years.

Additional factors which may affect the longevity of a flat roof include conditions the roof is exposed to and the quality of material used during installation.

If you are planning to renew the flat roof of a commercial property and would like bespoke advice from an experienced commercial roofing contractor, we would be very pleased to assist.

Download: The Essential Guide to Surveying a Flat Roof

This article, as with all other articles we produce, is for guidance purposes only. It does not constitute formal advice and should not be relied upon as such. For bespoke, unbiased advice relating to your commercial roofing project please contact us and we would be pleased to assist.

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