Polyurethane lifting, also commonly known as foamjacking, is a process where small holes are drilled into the sunken concrete and injected with a polyurethane foam mixture. The foam expands and fills all holes and non-compacted soil, creating a solid base so that the cement slab can be lifted back into place. The foam is injected until the desired height is reached and the concrete is level. To finish the process, the holes are filled with a cement grout, which matches the existing concrete. The process is fast, cheap and non-invasive. Once our workers are finished on the area, you can start using it again.
One of the biggest benefits to using the polyurethane lifting method is that very few holes need to be drilled in order to get the job done. And not only that, but the few holes used can be extremely tiny, about the size of a dime. This makes the clean up minimal and the end result look nearly identical to the original concrete. You will hardly be able to tell that any work was done. If you have a concrete slab that needs to be lifted and required draining service, contact us today and we will take care of the problem in record time, while leaving you with a beautiful result.
One of the alternative methods to foamjacking is slabjacking, or mudjacking, which is a similar process, except a cement-based slurry is used instead of lightweight foam. Opting for a lightweight material is beneficial because it reduces the stress on the already unstable soils that lay beneath the slab. Mudjacking slurry can cause the soil more distress and cause the concrete to resettle years down the road. Polyurethane, on the other hand, is so lightweight, yet incredibly strong, that it will last decades without causing any extra damage to the ground below.
Polyurethane foam can expand up to 15 times its original volume, making it a useful tool in filling hard to reach and small spots. Because it is lightweight and expanding it can fill spaces as small as 1/32 of an inch. There are no other options that can get into the nooks and crannies quite as well as polyurethane foam can. Choosing this method will ensure that you address every inch of the problem, and that you don’t have to worry about it coming back years down the line.
Polyurethane foam is extremely long lasting, as it is resistant to water, chemicals, rodents and insects. It will not erode over time. This is one of the reasons that many people opt for this method. Water and soil erosion are oftentimes the culprits that cause sunken slabs in the first place, so replacing them with something that is resistant to those same issues will put your mind at ease and ensure that you won’t need to keep repairing the same spot over and over again. Polyurethane will keep your house and yard stable and safe, year after year.