How much water falls on your roof
How much water is falling on your home probably doesn’t cross your mind. Why should it? It goes somewhere. It only matters when it decides to get into your basement.
I never thought of it until I had to do the math on how much water had come into someone’s basement based on depth and area for an insurance company. If your roof covers 1,200 square feet, like the average roof, you can expect 26,500 gallons of water in a given year. In a single rain storm 1,200 gallons might fall in a couple hours.
This water all goes somewhere.
Where does the water go?
Good downspouts and drainage systems direct this water away from your house. If you have all the water running off your roof right next to the building you can have it either build up against the foundation, go over the foundation or run down small gaps between the foundation and the dirt.
Ultimately you either want it absorbed into the ground or on its way to a storm drain. You want the water absorbed into the ground away from your home though, you do not want it just going straight in the ground next to your house. French drains and drainage fields are great at moving water away from your home. You can also landscaping to help direct the flow away from your foundation.
What is hydrostatic pressure?
Hydrostatic pressure is a fancy word for water pressure against something. Hydro = Water + Static = un-moving. When water is in the soil against your home’s foundation the concrete stops the water from flowing through the soil into your basement, hopefully. There is always some of this pressure on your foundation. When you have a sudden surge, like you have after a thunderstorm, water can push through your foundation into your basement.
What does this have to do with anything? This is what causes your foundation to sweat, overwhelms your sump pump and pushes water through the seams in the foundation.
What to do about it
Simply directing the water away from your foundation by ten feet can dramatically reduce these effects. Ideally having the landscaping slope away from your home is best but this is not in the cards for everyone. If you have frequent small leaks from your foundation a landscaper should be consulted on how to direct the water away from your home.
When you do have water in your basement call us right away to get it dried out! We are available 24/7/365 to meet your needs at 314-698-4618