- Project plans
- Project activities
- Legislation and standards
- Industry context
Last edited 12 Jun 2018
Plastic in construction
'Plastic' is a general name given to a wide range of synthetic materials that are based on polymers. The construction industry uses plastic for a wide range of applications because of its versatility, strength-to-weight ratio, durability, corrosion resistance, and so on.
Plastic can be manufactured into forms such as; pipes, cables, coverings, panels, films, sheets and so on; and can be formed or expanded to create low density materials; and be dissolved in solvents or dispersed as emulsions.
- Expanded polystyrene.
- Polyvinyl chloride (PVC).
Some of the main uses of plastic in construction include:
- Cladding panels.
- Pipes and gutters.
- Windows and doors.
- Wall linings
- Floor covering
- Ceiling panels.
- Roof coverings.
- Sinks, basins, baths and showers.
- Insulation materials.
The advantages of using plastic in construction are that it is lightweight yet strong which makes it easier to transport and manoeuvre around sites. It is also resistant to rot and corrosion and has strong weatherability due to it being capable of achieving tight seals. Plastic can also be flexible, and is easily extruded, bent, moulded, 3D printed, and so on. Plastic can also be easily removed and some plastics can be recycled.
The disadvantages of plastic are that it has a high embodied energy content and a low modulus of elasticity, meaning that it is generally unsuitable for load-bearing applications. Unless treated, most plastics are also flammable and have a high thermal expansion rate which requires detailing to allow for adequate thermal movement.
There are environmental concerns about some plastics because of difficulties recycling them, there persistence in the environment after disposal, and concerns regarding chemical additives used to make plastics flexible, resistant to fire, and adhesive.
 Find out more
 Related articles on Designing Buildings Wiki
- Carbon fibre.
- Construction materials.
- Fabric structures.
- Glass reinforced plastic GRP.
- Recyclable construction materials.
- Sandwich panel.
- Structural steelwork.
- Thermoplastic materials in buildings.
- Transparent insulation materials.
Featured articles and news
From frost damage to sulphate attack, common causes of defects in brickwork.
Precautions to take when making advance payments.
Helping communities recover from disasters and protecting them before they occur.
Instrumentation for critical healthcare environments.
Case study in the use of soft landings at the University of the West of England.
Richard Rogers wins is the AIA’s highest annual honour.
A quick introduction to a healthier and more sustainable form of construction.
The structural feasibility of modular high-rise buildings.
BRE conference on ways of providing and maintaining quality indoor environments.
CDBB publish foundational definitions and values to guide the development of the National Digital Twin.
Despite the reduction in staffing, most users remain satisfied with the service.
We run through the top 37 styles in history - but how many would you recognise?