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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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A winter leachate distribution system was then developed by laying "drip tubing" below the frost line, allowing for year round distribution. The basement foundation is more commonly built in colder regions where the frost line is greater than a few feet deep. Woodchuck tunnels normally are deep - just below frost line - and about 40 feet long, complexly dug with several amenities, including chambers analogous to a baby room, bathroom and bedroom. |
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