What Is the Difference Between Positive & Negative Drainage?
If you’re having a house or building constructed, your lot must have proper drainage to avoid structural problems. An excavating contractor can help clear the land and set your foundation, while also making sure that there’s sufficient grading around the property to prevent major damage down the road. There are two main types of drainage or grading that you should be aware of if you’re having this type of work done: positive and negative.
What You Need to Know About Drainage Around a New Building
About Negative Drainage
Negative drainage involves a slope, but with the ground actually getting lower as it gets closer to the building’s exterior. These slopes can be so slight that it looks like the ground is fairly even, but even subtle ones can lead to significant damage to the foundation. Water from around the property can pool around the home or building and seep into the ground surrounding the foundation’s structure. This can increase pressure to the area, weakening the materials. Moisture damage can also cause erosion and instability.
About Positive Drainage
Positive drainage describes the type of grading that should exist on the building site. Essentially, it involves a very gradual slope with the highest point starting at the exterior of the building and going down from there. This means that if it rains or water otherwise starts to collect around the property, it will move away from the home’s foundation and eventually sink into the ground throughout the surrounding area. Excavating contractors can place soil properly to ensure the best results.
Work with an experienced excavating contractor to ensure you have positive drainage. Simak Trucking & Excavating in Kingsville, OH, helps homeowners and businesses with a wide array of property improvement projects. Founded in 1956, the company offers land clearing, hourly trucking, and delivery of bulk landscaping materials like mulch and aggregates. View a full list of services on the company’s website, or call (440) 224-1992 to speak with the excavating contractor about your next project.
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