Hi I am trying to find the correct way to waterproof my basement from the inside
I do not know what the material is called that looks like corrugated fiberglass
Installed on the lower part of the wall or how to find it
A diagram would be very helpful: confused:
Thank you

Now I'm confused, are you trying to use this corregated material to create the water proof barrier? Is the wall concrete or what?

It's a perimeter drain system with a sump pump

Tell me if it cement or cider block wall.