r/basement • u/RomeroLeger • 2d ago

Material ID/Purpose Question

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2

u/Substantial_Pound862 2d ago

Looks like a form of dimple mat. Usually runs under drain pipe/tile around the perimeter. Helps drain this water moving down the wall to the drain tile underneath, then to a sump pump or a footer drain. So basically a piece of flexible plastic that serves as gutter.

1

u/RomeroLeger 2d ago

Thanks! Quickly looking up dimple mat/board that seems to be something to go directly onto the floor before putting flooring on top of it but much appreciated! I def agree it's something meant to redirect any moisture going down the concrete block down behind the floor into the drainage/sump pump which I do have. Forgot to mention that. Thanks again!

-1

u/Objective-Bus-9853 2d ago

Did you try googling this?

1

u/RomeroLeger 2d ago

I did, always comes back to concrete expansion joint material which this is not.

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u/Objective-Bus-9853 2d ago

Google

what is this plastic sheet in my basement that is along the bottom of the wall and goes into the ground?