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frost line |
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frost line The depth of frost penetration into the soil.It varies from area to area,depending on the soil quality in a particular location, but can average 3 to 4 feet below the surface. Building foundations should penetrate below the frost line in order to avoid the shifting caused by frost heaving. Many local building codes allow an exception with the use of a frost-protected shallow foundation, which uses insulation and drainage techniques to raise the frost line to just below the surface. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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One big question is whether capacitance gauges mounted beyond the nip can control thickness as well as can a gauge on the bubble just above the frost line. These sanitary devices work much the same way as a weep hole device in that when they are shut off, the water in the riser drains down and out a hole located below the frost line to prevent freezing. Unlike traditional ramps, these don't require a permanent frost footing where holes are dug and posts are set below the frost line. |
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