Green Frog^TM grew from Nu-lok^TM Roofing Systems.
Founded in Australia in 1990 by Bob Hick, Nu-lok Roofing Systems is a market-leading global roofing company, with offices throughout Europe, America and the Pacific.

Nu-lok™’s patented fixing system is the most efficient way to install a slate roof, replacing traditional wooden battens with a lightweight, galvanised steel grid system.

Nu-lok’s system was awarded a gold medal at the International Exhibition of Inventions and New Products in Geneva, and has since gone on to receive praise from builders, architects and homeowners the world over.

Concerned about the environment Bob Hick created Green Frog^TM with the aim of producing a range of environmentally friendly building systems that would really make a difference to the world we live in !