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Different factors come into play when you’re deciding on what type of waterproofing system to put into your basement. What kind of foundation you have? How wide is the footing? How thick is your basement floor?
Your contractor will not honestly know until he removes the first piece of the basement floor to install drainage.
You have to get the right match. Don’t lock yourself into any cookie-cutter waterproofing systems. They don’t work well in most foundations and hardly adaptable to wide footers and thick floors. Once a cookie-cutter waterproofing contractor opens up your floor and finds that your foundation is constructed in a non-standard way, they will work around it.
Cookie-cutter waterproofing systems work around the restrictions and code-compliance by making compromises.
A standard foundation has a 16-inch wide footing and an 8-inch wall. If you sit the 8-inch wall in the center of a 16-inch footing, you have a 4-inch ledge on the outside… It’s not the vital side, but the ledge on the inside is what’s really important. The floor is poured, so it goes over, and it sits on top of that 4-inch ledge.
Cookie-cutter Waterproofing System Dilemma
If drainage is sitting on the footing, compare it against the thickness of a floor that is 5 to 6 inches. A cookie-cutter gutter-like system doesn’t work because the floor thickness matches or supersedes the height of the system’s drainage. In this case, the gutter-like system must be installed above the footing, so the system flange can remain exposed after the floor is replaced on top of it with cement.
American Dry Basement Systems installers find thick basement floors in 25% of customers’ homes.
Loose stone is placed on top of the footing. The gutter-like drainage is placed on top of the stone. The system will be elevated high enough to expose the top of the system flange after the floor is replaced. Water runs freely over the footing, underneath the system, through stones to flood the area beneath the floor. The water must flood the entire area beneath the basement floor and within the depth of the floor before the gutter-system catches it.
Foundation Support is Lost
Keep in mind this particular system will require removing your floor off the entire foundation (footing) to install. Whatever support is beneath the floor (aggregate and backfill soil) will be responsible for holding up your floor. It is an incredibly heavy floor. It is common for unsupported basement floors to sink, crack and shift in the backfill soil beneath it.
The simple fact that a gutter-like system requires water to fill the area beneath your floor before reaching the system will erode, shift, and displace the backfill soil faster than ever before. The hydrostatic pressure outside your basement walls must reach a tremendous capacity of saturated soil and water to push water up underneath your floor. Don’t be surprised if the walls start cracking from hydrostatic pressure on the outside. Cyclical force placed on the outside walls, rainstorm after rainstorm, will crack sooner without any code-compliant floor support on the footing.
We don’t believe in the one-size-fits-all. Cookie-cutter waterproofing systems are designed for quick installation, high returns, and no results. Afterward, they will tag you with service contracts to maintain your system. You will keep paying for it long after the installation.
American Dry Basement Systems always expects the unexpected by using customization. Our perimeter waterproofing installation works in any foundation (poured concrete, block, stone (rubble) and monopour) because the products we use are adaptable for extreme situations. It takes hard work, dedication, and years of experience to get it right. We always have the correct installation strategy for your particular basement.
A home is the number one investment we make in our lifetime. Make sure it is a healthy and safe environment by maintaining a robust dry foundation. The rest of your house and family will thank you for it.
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