If there is one thing every homeowner dreads, it has to be basement flooding. According to the National Flood Insurance Program (NFIP), 68% of homes are at risk of basement flooding due to various reasons. If your home has suffered from this catastrophe, you appreciate how costly and devastating it can be. NFIP estimates that to repair 1,000 square foot of space with 3 inch flood water, you require $11,450. If you add this to personal items damage and loss of home value it is obvious no homeowner would like to go through such an experience.
In order to mitigate the risks that come with increased precipitation in the country, you need to know the major causes of basement water. Below are a few of these causes according to the Concrete Foundation Association (CFA):
Most homeowners don’t take the time to inspect their roof drainage during spring. As such, gutters get clogged and when it rains the water will flow down the walls and from pools next to the basement walls. As the standing water level increases, it will eventually seep through any existing cracks into the basement. It is important to call in a roof contractor before the rain season to unclog the gutter and repair any damages caused by previous storms.
After filling the area around the foundation, most builders don’t take time to correct the grading away from the walls. As such, the surface wall will push against the walls and eventually seep into the basement. A good contractor will help correct the gradient of your landscape away from the property to avoid basement flooding.
This is the most ignored cause of basement water. If your property is on a low lying area, there is the risk of hydrostatic pressure pushing water through the floor. To remedy this, an interior drainage system should be installed. This includes a sump pump and a discharge pipe driving water away from the property.
Sump Pump Failure
A sump pump is a first line of defense, but if it fails and there is no battery backup, you will suffer basement flooding and extensive property damage. Always ensure your primary sump is regularly inspected and confirm the battery backup pump is working.
Storm Sewer Backup
During heavy storms, debris will find its way into the municipal water system. Such a problem will lead to surface flooding and the water will push through foundation cracks into the basement. A backup can also result in flooding if there is backflow from the sewer during flooding.
There are other causes of basement flooding and your contractor will help identify them and treat them to avoid further structural damage.