Grinwood guarantees that, for a 15-year period under normal and correct service conditions, and under installation conditions in compliance with instructions written by Grinwood, finishing proflies will not be subject to any defect related to their manufacturing, cracks, splinters, delamination, rotting or structural damage caused by fungi, wood-eating insect or termite attacks.

The high-density polyethylene and wood fibre mixture forming the core of the board also ensures very good resistance to knocks and wear.