Latest Discussions : Basement & Foundation


11:10PM | 04/09/16
Member Since: 04/09/16
5 lifetime posts
I have an addition that was constructed to extend my house 8 years back that has quite a large basement room. Unfortunately, this room does not have a concrete floor and has a dirt floor with about 2' of crushed stone on top; a perimeter drain and a sump pump is also installed. Just to give some context, this dirt floor is about 17" lower than the finished concrete floors in the older basement rooms and when pouring a floor I'm considering comming up another 8"(4"crushed stone+4"concrete).
In the last 4 years that i have owned the house, I have had a few incedents where the sump pump has failed(variuos reasons from stones clogging the impeller to broken pumps). At these times I have noticed that the room floods in the rainy/thaw seasons(not when the ground is saturated). The waterlevel in the room can be as high as 12" from the dirt floor. We all know that water takes the path of least resistance, so my question is if adding a concrete floor with a moisture barrier(eg: poly) below the floor provide enough resistance so the water travels elsewhere? My thought is that adding the floor will be enough to prevent the room from flooding in the future if the pumps were to fail say in case of a power failure. Rest assure I'm planning to run the pumps, but just worried for those unforeseen failures.

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