VAPOUR BARRIERS

A vapour barrier, or vapour diffusion retarder, consists of a material which detains or controls water vapour.

Any material which retains water on a damp surface to keep another material dry may be considered a “vapour barrier”.

It can consist of a solid foam insulation panel, treated laminated wood, plastic or stainless steel, as well as various coatings of paint,  sheets of plastic, aluminium or paper coated with asphalt.

ANTI-CONTAMINANT GEOTEXTILES

Geotextiles are permeable synthetic textiles of various materials (fiberglass – FV, Polypropylene – PP, Polyester – PY) largely resistant to tension and puncturing, with excellent hydraulic properties.

There are two types: fabric and non-fabric. Designed with specific properties adaptable to different applications/uses within the sphere of each project.

The main uses of fabric geotextiles are in the formation of structures on reinforced floors and the separation and stabilization of subgrades on roads and foundations.

On the other hand, non-fabric geotextiles are principally used as a separation sheet, drainage – filtering, protection of geomembranes and repaving.