Environmentally Friendly, Recyclable & Durable
Core building materials
The central part of the CITRA System is Expanded Polystyrene (EPS), which is a lightweight, safe, sustainable, non-toxic, non-flammable, and fully recyclable material. This material is composed of organic elements (carbon, hydrogen, and oxygen) and does not contain chlorofluorocarbons (CFCs) nor hydrochlorofluorocarbons (HCFCs).
The EPS used by CITRA System contains up to 20% recycled material and 100% of the offcuts from the production is recyclable. The EPS can be recycled by any EPS manufacturer in South Africa without any cost.
For the structural frame, we use Magnesium Oxide (MgO), which is an environmentally friendly, strong, and non-toxic material. This material provides strength and insulation whilst joining the panels together.
The internal and external layers are made of a high-performance plaster. Each has a 30mm thickness which is connected with fireproof MgO studs. Glass fibre mesh provides additional durability to the plaster, and local steel reinforcement gives the plaster the necessary strength. The plaster is designed to have the best adhesion to the EPS and this combination can regulate humidity.