A typical single ply membrane flat roof system can be expected to achieve a service life of at least 30 years. Care should be taken to distinguish between the durability of the single ply membrane by itself, and the expected service life of the flat roof system incorporating the membrane.
As the components are exposed to the elements and any foot traffic, the single ply membrane has a role in protecting the components immediately below it. However, the performance and durability of the complete roof system depends on all materials being stored and handled correctly, installed in accordance with manufacturer’s instructions, and fixed in accordance with wind uplift calculations etc.
How do other components contribute to the service life of a flat roof?
In isolation, any of the other components in a flat roof are capable of offering a similar, if not longer, durability to the single ply membrane. Thermal insulation, for example, is often quoted as having a potentially indefinite service life.
The key is really in compatibility of products and quality of workmanship, to make sure that durability is not compromised by poor installation, inadequate fixing, or poor drainage – anything that could put unnecessary stress on the flat roof system and its components.
Single ply membranes should be independently tested and certified for further assurance. IKO Polymeric’s Armourplan and Spectraplan roofing membranes are independently tested and accredited by the British Board of Agrement (BBA) and have a service life in excess of 30 years.
For more information, please contact IKO Polymeric’s technical team.