Improper drainage around your house can bring water into the basement and encourage moisture-related problems such as rot, fungus-growth and wood-damaging insects. Here’s how to decrease this kind of damage.
Make sure your gutters are free of debris and leaks. Water spilling over or leaking through your gutters can quickly saturate the soil beside the foundation wall.
Extend the downspout pipe to take water far from the house or install splashblocks to divert it at least a couple feet from the foundation.
Make sure the soil slopes 1″/ft away from the foundation for at least a few feet.
This is standard stuff which ideally will already be in place. If you’re still having water problems, you may need to install pipes to help the drainage.
Weeping tiles consist of a system of perforated pipes — which collect water — and solid pipes, which carry it away. The pipes are laid in a bed of gravel so they collect moisture without clogging. In really wet conditions, the pipes may terminate in a dry well — a 4 to 6-ft deep hole filled with large rocks and coarse gravel, then covered with topsoil.
The ideal time to install weeping tile is when the foundation is poured. At this point you can install a pipe around the perimeter of the house — and waterproof the exterior wall for that matter. After the fact this is a major job.
You may be able to avoid some work by figuring out where the water’s coming from.
If your house is on a slope, it may help to install a weeping tile system up the slope to divert water before it has a chance to reach the foundation. Check whether it worked by taping plastic squares inside the foundation wall, and seeing if these collect water.