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Today, we have a plethora of options, common retrofitting methods to house elevation to fill a requirement or FPE (desired Flood Protection Elevation). A house when built needs to raise to a proper standard height so that living area will be above severe floods (such as the 500-year flood). The process generally involves two steps:-
An on-going process of elevation involves most frame, masonry veneer and a masonry house that with separation from their foundation. Then using a hydraulic jack the house is raised with a temporary support . Then it is time for a construction for a new foundation below. A raise for the living area comes right after. Now only the foundation remains exposed to flooding. This is a perfect technique for well build houses whose construction initially began on the basement, crawlspace and open foundation.
Photo by Louisiana Sea Grant College Program Louisiana State University on flickr [CC BY 2.0]
Commonly frames, masonry veneer, and masonry houses shall be elevated on extended foundation walls. The following points describe a few techniques used for homes built on basements and crawlspace foundations. The method differs from that house built on a slab-on-ground foundation.
For a house constructed on a basement foundation, the elevation process is the same for frame, masonry veneer and masonry houses. Firstly, a hole is made at intervals in the foundation’s wall. A series of steel I-beams are installed at critical points (under the floor framing). So, if the foundation walls are made on concrete blocks, the lifting contractor can remove individual blocks to create the required holes. Then I-beams are placed so that they run perpendicular to the floor joists. Another set of vertical beams is then positioned below the first set. These two sets of beams extend the width and length of the house and form a cradle that supports the house as it is raised.
For a house build on Slab-on-grade foundation, hydraulic jacks and a network of I-beams are used. The difference between the slab-on-grade house and those of other types of foundations presents particular difficulties. Hence they require a different lifting technique. The slab rather than the wood forms the Floor of a home. Because the slab form of the floor of the house, elevating the homes is much easier if the house and slab are lifted together. The contractor must take extreme care during such lifting process.
Nowadays, frame, masonry veneer, and masonry house built on basement, crawlspace and slab-on-grade foundation can be quickly elevated on an open foundation consisting of piers, posts, column, or pilling. House constructed initially on an open foundation can also be elevated this way.
This is the complete guide to house elevation. The tips and methods shown here will help you in getting a better, clear idea in the process of elevating a house. Review the guide to get the best of the house lifting.
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