The height of the roll is 5m (folded over).
1 unit = 1 x 4m = 4m2
If you order 3 units you’ll receive a piece cut from the roll – 3m x 4m height = 12m2. Everything up to 100m2 will come in one piece.
Made from poliethylen. Non-breathable, insulating, waterproof. For floors, roofs and walls.