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 PATHChat
| SUBJECT: |
RE: frost-protected shallow foundations
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| FROM: |
DEAN YOUNGKEIT
gyruofhousing@netscape.net
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| DATE: |
10/19/1999 11:04:00 PM |
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Deep foundations are assuming that the footing soil may
be saturated during a winter freeze. This will lift
portions of a building due to water expansion from the
freeze. An uneven lift will crack house elements,
footings, walls, etc.
Architect Frank Lloyd Wright Junior patented a gravel
only footing where the gravel is constantly drained to
prevent water presence for a potiential freeze. Extra
re-bar is required in the shallow poured concrete wall
on top of a set of "ball bearings" that are always dry.
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 |
Partnership for Advancing
Technology in Housing (PATH)
451 7th Street, SW, Rm. 8134
Washington, DC 20410-0001
Telephone: 202 708-4370 Fax: 202 708-5873
E-mail: pathnet@pathnet.org |
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