Frequently asked questions

GRC (glass fibre reinforced concrete) is a cement-based material reinforced with alkali-resistant glass fibres instead of steel bars. Because the fibres run through the whole section, GRC can be cast in thin, strong, detailed shapes such as jali, domes, columns and cornices that would be far heavier in ordinary concrete or stone.

Yes. GRC and GFRC (glass fibre reinforced concrete) are two names for the same material. GRC is more common in India and the UK, GFRC in the US.

GRC has no steel reinforcement to rust and uses alkali-resistant fibre, so it is well suited to outdoor use. With sensible detailing and occasional maintenance (cleaning, resealing or repainting), GRC elements last for decades.

GRC is far lighter than stone or precast concrete for the same look, takes detail as well as carved stone, and, unlike POP or plaster mouldings, is made for outdoor use. It is also quicker on site because elements arrive finished.

GRC is a cement-based material and is non-combustible.

Typically, a GRC skin 12 to 15 mm thick weighs about 25 to 35 kg per square metre, compared with about 240 kg per square metre for a 100 mm precast concrete panel. Actual weights depend on the element and are confirmed for each project.

Very little. Occasional cleaning keeps it looking fresh, and painted or sealed finishes are renewed from time to time, as with any exterior surface.

Yes. GRC takes exterior emulsions, texture paints and clear sealers. It can also be left in its natural cement finish or coloured with integral pigments.

Yes. We inspect, repair, clean and repaint GRC elements, and can recast damaged pieces from the original moulds.