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Rising groundwater is one of the most common causes of water
intrusion. As the water pressure builds on the outside of a home, it
will push water through even the tiniest cracks and spaces in your
basement floor and walls. Like any fluid, water is constantly seeking
an area of lower pressure and in this case, the area of lower
pressure is the inside of your basement.
The goal of a pressure relief system is to give this water a place to
go--a place other than your basement floor. In some parts of the
country, this system is called a drain tile, but in the Northeast, it is
more commonly known as the French drain.
intrusion. As the water pressure builds on the outside of a home, it
will push water through even the tiniest cracks and spaces in your
basement floor and walls. Like any fluid, water is constantly seeking
an area of lower pressure and in this case, the area of lower
pressure is the inside of your basement.
The goal of a pressure relief system is to give this water a place to
go--a place other than your basement floor. In some parts of the
country, this system is called a drain tile, but in the Northeast, it is
more commonly known as the French drain.
Hydrostatic Pressure
| Click to view a breakdown of our French drain installation process. |
Deep Pressure Relief from ACM
Other waterproofing companies attempt to take the easy way out by placing a drainage system on top of the
foundation footing. These systems are not only ineffective but often impossible to actually install. Their
inevitably low capacity coupled with the fact that the foundation is still sitting in water can lead to a damp or
even flooded basement. In addition, the footing is generally only an inch and a half below the basement floor,
leaving no room for a pipe or drain system of any kind.
A French Drain system from ACM is installed next to the foundation footing where it can intercept water long
before it reaches the basement floor. In addition, it can be installed in nearly any basement, finished or
unfinished. For greater detail regarding our installation process, click the diagram above.
foundation footing. These systems are not only ineffective but often impossible to actually install. Their
inevitably low capacity coupled with the fact that the foundation is still sitting in water can lead to a damp or
even flooded basement. In addition, the footing is generally only an inch and a half below the basement floor,
leaving no room for a pipe or drain system of any kind.
A French Drain system from ACM is installed next to the foundation footing where it can intercept water long
before it reaches the basement floor. In addition, it can be installed in nearly any basement, finished or
unfinished. For greater detail regarding our installation process, click the diagram above.
How does it work?
problematic, however, because water will always find some other way of entering the house—the water has to
go somewhere and it wants to go to a nice, open, low-pressure zone, i.e. the basement.
Rather than attempting to seal the home, thereby giving the water no place to go, the French drain system
receives incoming water so it can either drain into the ground or be pumped outside.
An ACM French drain (named after Henry French) consists of a flexible perforated pipe that is installed below
the floor around the perimeter of the basement. At the very edge of the floor, where the floor meets the
wall, we leave a 3/4 inch drain channel; if water leaks in through the walls, it will enter this channel and trickle
into the perforated drain pipe. As this drain pipe begins to fill with water, the water will flow into a sump
where it can safely be pumped from the basement. If water enters through the footing joint, it will end up in
the drain pipe. Even if the water table begins to rise in the middle of the basement, this too will be drawn
toward the French drain’s low-pressure zone located beneath the basement floor.
go somewhere and it wants to go to a nice, open, low-pressure zone, i.e. the basement.
Rather than attempting to seal the home, thereby giving the water no place to go, the French drain system
receives incoming water so it can either drain into the ground or be pumped outside.
An ACM French drain (named after Henry French) consists of a flexible perforated pipe that is installed below
the floor around the perimeter of the basement. At the very edge of the floor, where the floor meets the
wall, we leave a 3/4 inch drain channel; if water leaks in through the walls, it will enter this channel and trickle
into the perforated drain pipe. As this drain pipe begins to fill with water, the water will flow into a sump
where it can safely be pumped from the basement. If water enters through the footing joint, it will end up in
the drain pipe. Even if the water table begins to rise in the middle of the basement, this too will be drawn
toward the French drain’s low-pressure zone located beneath the basement floor.
One of the biggest problems in basement waterproofing is designing
a system that can deal with incoming water no matter where it
comes from. At first, it may seem like the best option is to simply
seal up the structure so that water cannot enter. This option is
a system that can deal with incoming water no matter where it
comes from. At first, it may seem like the best option is to simply
seal up the structure so that water cannot enter. This option is
ACM Basement Waterproofing
121 Freeman Ave. Islip, NY 11751
(631) 581-0600
121 Freeman Ave. Islip, NY 11751
(631) 581-0600
631.581.0600
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