Daily Home Renovation Tips

As well we showed the creation of a dry well to help with the drainage of the backup drain.

Now with the dry well in place, the application of the FlexiSpan solution to the prevent water from leaking through the crack in the foundation wall was begun.

First, to create the maximum adherence to the crack in the foundation wall Fitz, from Clarke Basement Solutions, reamed or etched the crack.

Next, he applied about 1/2 a tube of Bostic Textured Urethane Sealant into the crack.

This product will remain flexible to maintain its adhesion to the crack in the wall. It is made not to harden and crack to keep any water out. this bead of urethane sealant will by itself keep out 80 to 90% of any water which tries to enter from the outside through the crack in the foundation wall according to Fitz.

Next, Fitz placed what is called the FlexiSpan Foam Drain Strip against the urethane sealant within the wall crack. The purpose of this is to cause any small amount of water which manages to leak through the urethane sealant in the crack to seep down the foam strip into the drainage underneath the concrete floor.

Ah, mother gravity at work. ;)  This is a great idea. Look at the end of the foam strip on top of the dry well in the backup drainage area underneath the floor. That is what all those holes which were drilled into the top of the upside down bucket will be used for if there is ever a need. The water from the foam strip will go into the holes in the bucket, and drip into the ground underneath and dissipate.

Then on top of the FlexiSpan Foam Drain Strip was placed crushed stone as shown above.

Select this link to continue to the next article in this series, the completion of the FlexiSpan foundation wall crack repair system.