As all of us realize, water runs downhill. That being the case we need to provide it a path which will allow it to run away from the property or more specifically, away from the foundation. It simply doesn’t make a difference if you have a crawl space, basement, or slab-on-grade foundation they all require appropriate drainage.
Therefore, how do you determine if the slope/grade is appropriate? Over time and with experience you will be capable to check and see if it is a positive (away from the building) or negative (towards the building) grade/slope. Meanwhile, you can use either a 4-foot level or a ball bearing (at least 3/4″) to figure out slope. Obviously, the ball bearing is only going to work on hard surfaces like walks, drives, and patios. The level is for grass, landscape materials, and so on. www.sproutedbakehouse.com
The guideline is for the grade to slope away from the building at the rate of about 1- inch per foot for the first 6-feet. This is hardly ever the circumstance in real life. We hope that it is at the very least flat and not negative. Try to find indications of puddling water, erosion or settling of the soil near the foundation, and basement windows that are partially buried. All of these are possible indicators of improper slope/grade.
Now, even if the grade is right the water running off the roof could wreak havoc on the foundation as well. In homes with basements or areas with expansive soils, gutters shall always be recommended to carry the water away from the foundation at least 4-6 feet. This will help significantly with wet basements!
Cliff Willis is the proprietor of Home Inspection Solutions. They are a recognized provider of home inspection services in Fort Worth, Texas. We go places where other inspectors will not. Consult them right now to get your professional residential property inspection scheduled www.sproutedbakehouse.com/ or give them a calll at 214-960-1005.For additional info on residential property inspections, also have a look at home inspection marketing.