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Moisture/Water seeping through Field Stone foundation

Moisture/Water seeping through Field Stone foundation

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  #1  
Old 03-17-07, 10:34 AM
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Cool Moisture/Water seeping through Field Stone foundation

Here's what we've done and would like further suggestions... During last June, 2006's, flood/downpour our son's basement filled up with water that seeped through the field stone/cement walls as well as coming up under the partial dirt floor. This was during the initial phase of building an addition onto his home. He had friends excavate the foundation add-on area. Fortunately it was 6 feet deeper than the existing basement level, because when the rain poured down the hill they live on, it waterfalled through their basement walls and filled up the newly dug hole. We used 3 sump-pumps to keep up with removing the influx. Following that incident, he dug ditches (with a back-hoe) around the house and one at the upper hill end of the property, placed in drainage pipes (the kind with holes in them) and siphoned the future water off to the middle of the back yard where it eventually meets up with an appearing creek bed. The new section's basement, which is a two car garage, had drainage pipes placed in around the inside of the new walls, etc. before the stone and cement floor were finished. After the addition was built and his father-in-law did the roofing, we installed the drainage pipes on the old and new roof all around and made sure the down spouts extended at least 3 feet away from the house. As to the partial disintegratied basement walls of the old section, we purchased "fiberglass cement" and used a couple tools to remove loose areas on the walls and replaced it with this cement. The old part is build on rock, so there are a few bolders jutting out into the basement space that look too large to have been able to be removed, with the equipment used way back when. The rest of the old basement is field stone, cobble stone and cement in some areas...interesting. By the way, this house used to be called, "The Spring House" because people from all over the area went there to retrieve water from the Spring. The house was up on stilts in those days, but when our son bought it there had been a basement placed under it where the stilts once were. It hasn't rained seriously badly until lately when my husband and I noticed water...little puddles in the basement. What else could be done?
 
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Old 07-28-08, 06:59 AM
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Thumbs up Sealing old damp crumbly stone basement walls

We finally got the time to finish the basement. Here's what a professional, who is a friend, told us to do. Per 1 bag of fiberglass cement plus 1 bag of regular cement; mix the two together dry; then mix with water as usual. Apply with Trowel to sides of basement walls generously and allow to dry. If it needs to be redone, do it. The goal is to completely cover the sides with a smooth finish. Apply Dry-Loc on top of the sealed sides as directed.

As far as the slate stones on the floor go, remove them, dig down as usual for preparing a cement floor. There is not enough room to prepare for a cement floor on top of the slate. The basement ceilings are low enough as it is. Use the removed slate out side for walkways, etc.
 
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