Single ply roofing membranes are increasingly popular in UK construction projects, both for new build and refurbishment. Selecting a roofing system is always a combination of design criteria, performance requirements and cost, and it is important to find a balance all three. SIG Design & Technology look at the key factors to consider when choosing which single ply roofing membrane suits your project.
What makes a ‘sustainable building product’ is still a matter of debate. The Construction Products Association has written a very good article about this which explains the complexity of sustainability in construction products.
In the end, any effective assessment of the sustainability of a construction product has to look at it in the context of the whole building, its life cycle and overall impact.
For the purpose of this article, we’ll focus on the environmental impact of the products themselves – whether they can be recycled, and what impact they and their components have on the environment.
Cost of single ply roofing
Generally speaking the cost of these single ply roofing membranes follows this sequence:
Cost can vary considerably depending on the manufacturer. For example, with hundreds of different PVC roofing membranes available to choose from, a range of prices are available, but the performance characteristics of the materials will vary too. The initial cost of the material itself is only one factor.
Track record and lifespan of single ply roofing membranes
Roofing membrane products continue to evolve, and whilst some have been around since the early 20th Century, other new products are being developed.
Depending on the product, the lifespan of the membranes can vary considerably. What affects the actual lifespan of the roof? The quality of the product itself, the quality of the roof design, the quality of the installation, and the reliability of the companies providing the assurance of these qualities.
Guarantee reliability in single ply roofing
To ensure that the product you choose will meet your client’s requirements and perform as required throughout its life, your roof will require:
A Manufacturer’s Guarantee can provide confidence in the quality of a product, but this is only as good as the company that provides it. To ensure confidence in the companies you choose to work with, make sure they are part of the Single Ply Roofing Association (SPRA).
SPRA membership is a guarantee of reliability, because members are required to meet quality criteria, and performance is monitored annually. For manufacturers these include:
It is not uncommon to hear roofing membranes, especially in the context of ‘flat roofs’ referred to as unreliable, but reliability in any construction project depends upon a range of factors. Specifiers, contractors and their clients must rely on professional, indemnified expertise to ensure the right choice of products for their projects. Make sure you choose the right companies to advise you.