Building exteriors play a key role in preventing the outbreak and spread of fires. PROTEK exteriors adhere to fire safety standards without compromising on design.

Exterior Render

PROTEK uses industry-approved insulation materials such as fire-safe mineral fibre, lightweight expanded polystyrene, enhanced expanded polystyrene and high-performance phenolic foam.

We carefully select the most appropriate fixing methods, depending on the type of substrate and the condition it is in.


A rainscreen is an exterior wall detail where the wall cladding stands off from the moisture-resistant surface of an air barrier applied to the sheeting to create a capillary break and to allow drainage and evaporation.

The rainscreen is the wall cladding itself and prevents the wall air/moisture barrier on sheathing from getting wet.


PROTEK work with an extensive range of external cladding boards which allows you to choose and specify the right façade system at the right time for the right project.

Incredibly easy to work with, cost efficient and above all aesthetically attractive, the exterior of your building can be brought to life with our easy to shape and highly versatile broad range of products, available in an assortment of colours and designs to suit your creative needs.


Cavity barriers work to improve a building’s safety by preventing the spread of fire within concealed voids. They provide essential protection whilst also helping to minimise air leakage and heat loss between the external cavity and the separating party wall.

Our Projects

“PROTEK have provided me with a professional service when carrying out THEIR work. Their system for recording and monitoring is outstanding.”

Mike Beckett
Pre-Construction Director | Stack