Ignoring Foundation Repair
Foundation repair is not something most of us like to think about. We tend to ignore it and hope that fixes itself. Foundation problems can be a stressful, potentially costly endeavor, filled with uncertainty, particularly if not done under the direction of a professional contractor or foundation engineer. Foundation Repair is needed when your foundation begins to settle or move laterally. This can be caused by building on expansive clay, compressible or improperly compacted fill soils, or improper maintenance around foundations. Foundation repairs aren’t easily performed, so you cannot sit back and hope for the best. You must do your homework to find the best foundation repair contractor for the job. As usual, the lowest price is not always the best way to go. If you choose to make your final decision based on price, be prepared to be disappointed. Quality repairs take specialized equipment and specially trained people to perform the work. Needed foundation repair work can not be ignored. The traditional answer to foundation repair has been to erect piers to jack up the foundation and raise it off the expansive clay soil. The piers must be installed through the expansive or weak soils to stabilize the structure. Foundation repair can be the most expensive repair that you will make to a property. There are four major categories for this type of piering – steel push piers, helical piers, micro piles and concrete piles. Each of these have their benefits and logical applications.
Steel push piers are hydraulically driven piers that use the weight of the structure to drive steel pier material through the soil until they reach a load bearing stratum for support. Once the pier material is driven, individual hydraulic cylinders are attached to each pier and the structure is either stabilized or lifted using a hydraulic manifold system. Steel push piers are best suited for basements, crawl spaces or other heavy structures. Helical piers are similar to push piers except they are screwed through the soil and use a steel plate, flight, to support the pile within layers of good soil. These piles must be monitored very closely upon installation to achieve their intended depths. Once an adequate depth is achieved, once again, a hydraulic manifold lifting system is installed to lift or stabilize the structure. These helical piers are ideally suited to light weight structures that only need a small lift or stabilization. Micro piles are hydraulically driven hollow steel piers that are filled with grout during installation or immediately upon completion. The hollow bar serves not only as structural steel but also as a means inject the grout. These high capacity piers use the same type of manifold lifting system as steel push piers and helical piers. While these piles have very large capacities and can be installed in soils that other piles cannot be installed in, they also require much more equipment for installation which make them more expensive to install. They are best suited for very heavy structures sitting upon poor soils laden with cobbles, boulders and trash.
Concrete piers are piers that use a drilled hole filled with concrete that rely on skin friction for support. They are drilled or dug into the soil, usually beyond the active soils, and then filled with concrete. Once the concrete has hardened, a shimming system is usually employed to support the structure. These piers are not only messy but take much longer to complete. Foundation repair is critical to address as soon as you suspect a problem. For starters, the sooner you fix a failing foundation, the less damage it will cause. Due to the complexity of foundation repairs the best advice is to hire an engineer followed by a trained foundation repair contractor. These professionals will make sure that your home is fixed correctly and permanently. Do not ignore your foundation problems have them fixed by the pros.
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