Pier boot and method for sealing a crawlspace

Details Pier boot and method for sealing a crawlspace Pier boot and method for sealing a crawlspace

2007-03-20

2007-03-20

Lagman, Frederick L. (Department: 3673)

Hydraulic and earth engineering

Foundation

Reexamination Certificate

active

11373346

ABSTRACT:
A pier boot is fabricated for installation around a pier in the crawlspace of a building. The pier boot includes a substantially impermeable polymer sheet. The polymer sheet has a flange portion and two or more slits therein. The slits define flap portions of the polymer sheet, and the slits each have an end that defines a hinge in the polymer sheet. The pier boot is installed around a pier in order to optimize the seal around that pier when constructing a conditioned crawlspace.

REFERENCES:
patent: 4603517 (1986-08-01), Lyons, Jr.
patent: 6223463 (2001-05-01), Carlson et al.
patent: 6280120 (2001-08-01), Okamoto et al.
Building A Sealed Crawlspace, JLC, Oct. 2003, nine pages.

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