Water coming up from the floor- help!

Nickie
by Nickie
We have a sunroom in our house that used to be a outside concrete slab but they closed it in and made a sunroom. When we have a hard rain water comes in through the floor. What can we do to fix this?
  7 answers
  • Crystal Meyer Griffith Crystal Meyer Griffith on Feb 27, 2017

    If the whole floor is becoming wet because it is wicking water from the ground underneath, use a product like Dry-Loc to paint the concrete all over. That's what I did before we even began to enclose our patio. If water is coming in around the edges, go buy a box of exterior caulk and caulk the dickens out of it inside and out. I hope someone used the pink or blue poly stuff between the concrete and the wood for the walls. Otherwise the wood will eventually rot.

  • Dfm Dfm on Feb 28, 2017

    i used to have water coming into the house...it took several things to keep it out. the 1first was to dig a swale about 8 feet or so from the house. thats a shallow depression to contain water, about 10 feet by 3-4 across. plant w/. grass seed.


    the second step was to find where water is coming in at and caulk it. is the water actually coming up from the floor or puddling from an unsealed perimeter? caulk the outside and the inside. is water getting under the concrete and making a void that fills with water after a rain?

  • Bob Bob on Mar 17, 2017

    This is what us Brits call a total bodge job. I have had the same problem with a house in Bulgaria who`s interior floor level was 1 metre (3 foot) below ground level. What i did was ,first, the area outside the walls of the house were concreted for 1 1/2 metres this ensures any rain off the walls was directed away from the building. Second The downpipes from the roof were extended by 3 metres away from the building this ensured that water from the roof could not pool anywhere near the building . So far for me this has worked and I no longer have to pump water out of my house. The only other way without digging up the entire floor and relaying it etc is this. Dig a hole in your floor about 2/12 feet deep and about 1/2 square . use this as a sump for water ,into this sump hole put in a small float activated water pump ,this should clear water from under the ground level before it leaches through you concrete.

    Hope that lot helps . The water diversion is cheap to do ,the hole and digging along with the pump maybe a bit more pricey.

  • Claude Claude on Mar 17, 2017

    If you h e gutters, make sure that the run off is directed 3 or more ft away from your sun room...if you don't have gutters, invest in some. Make sure that you know where the water is coming from...go outside in a raincoat and umbrella and observe. I say that because we had a finished playroom in the basement and when it rained, it wicked in..sometimes days later..so I knew it was ground water. I put an extension onto the gutters see if that solved the problem...it reduced it dramatically...so I do a trench and attached an extension of pvc pipe 18' out. We redid that basement twice before we were able to divert the water successfully...and I was the one who fixed it.

  • You need to find a way to keep the water away from the sunroom - gutters, or recontouring the ground around it.

  • Johnavallance82 Johnavallance82 on Jul 14, 2023

    Lift the floor and lay a waterproof liner under it. You probably have a high water table! You could lay a waterproof membrain ontop of the concrete and then lay tiles on top using waterproof cement and grout.