Title:
AIR CIRCULATION BOARD FOR CAVITY WALL CONSTRUCTION
Document Type and Number:
WIPO Patent Application WO2003089726
Kind Code:
A3
Abstract:
A corrugated board ((32) is secured to the inner wall (12) of a cavity wall construction (10) to establish a defined spacing (25) between the inner and outer walls (12, 13) and prevent excess mortar from bridging (28) to the inner wall (12). The corrugated board (32) has a series of spaced channels, furrows or grooves (34) into which an anchor (24) projects into the studs (16) of the inner wall (12) to secure the outer wall (13). The corrugated board (32) is installed prior to the construction of the outer wall (13) and establishes a minimum spacing or gap (25) between the walls (12, 13) based upon the thickness of the board (32). The outer wall (13) is constructed immediately adjacent to the outer face of the corrugated board (32). The grooves or channels (34) of the corrugated board (32) create a chamber for vapor and air circulation. The board (32) eliminates bridging by the mortar (22) and provides an air conduit to exhaust even the minimal amounts of vapor that will occur in the cavity (25).
Inventors:
COLLINS P MICHAEL (US)
SCHAEFER STEVEN E (US)
SCHAEFER STEVEN E (US)
Application Number:
PCT/US2003/011926
Publication Date:
February 12, 2004
Filing Date:
April 17, 2003
Export Citation:
Assignee:
COLLINS P MICHAEL (US)
SCHAEFER STEVEN E (US)
SCHAEFER STEVEN E (US)
International Classes:
E04B1/70; E04B2/70; E04F17/00; E04F17/04; E04F17/08; E04B; (IPC1-7): E04F17/00
Foreign References:
| US4916875A | 1990-04-17 | |||
| US5598673A | 1997-02-04 | |||
| US4000595A | 1977-01-04 | |||
| US4852320A | 1989-08-01 | |||
| US6594965B2 | 2003-07-22 | |||
| US6355333B1 | 2002-03-12 | |||
| US4446661A | 1984-05-08 |
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