Our drainage board is designed so that it drains storm water efficiently so that there is no harsh impact on your gutter or the ground below.
This is a essential part to a green roof system, as if you do not have this your roof it will not survive.
Material: High Density Recycled Polypropylene
Depth: 12 mm
40 m2 per roll
Fully compliant with GRO Code and FLL guidelines