Details
A solid sheet of 20 mil (0.51mm) 100% post-industrial polystyrene regrind. Each roll is 4' wide x 100' long (400 square-feet/roll). A root barrier is a required component and is generally located within or at the membrane.Most membranes (i.e. hot applied rubberized asphalt, cold fluid applied, built-up bitumen, and modified bitumen) will require a root barrier to repel roots.