Thursday, March 6, 2014
This block wall foundation is a great example of several mistakes done by the owner hoping to keep water from entering his foundation and one that was a headache for the homeowner last year during the spring thaw.
The first mistake is having the downspout end just a few inches from the ground where it is more susceptible to freezing and clogging up. We always recommend about 18" off the ground to get the proper slope. In addition we always recommend solid metal or plastic extensions, 10' if possible. With a good slope and the longer length it will help get that water away from the problem areas. This extension (the green piece) is also pointed towards the left when it should be pointed at us which would make it easier to hit the slope of the yard heading towards the right. With this set up the water is getting dumped into the pea gravel (towards the left) but then heading to the right. Along the route is this nice stair step crack that most likely goes from floor to ceiling in the basement
This basement has a working drain tile system but when there's rain, some of the water does work it's way into the system but the crack we see on the outside is also visible on the inside and taking the path of least resistance, it dumps out above the floor, skipping the drain tile system.