TODAY’S PATENT- WATER MANAGEMENT BUILDING WRAP

Today’s patent was invented by Larry A. Aalbers and Bartley J. Kohel on July 20, 2010, bearing patent no. US7757447B2.

This present invention relates to a water management building wrap that may be useable between a frame structure of a building and an exterior building covering. The building wrap comprises a permeable membrane and an extruded polymeric drainage structure secured to the second side of the membrane. The drainage structure includes a plurality of generally vertical members having a first thickness and forming boundaries for generally vertical water drainage channels.

A plurality of generally horizontal members attached to the generally vertical members and having a second thickness less than the first thickness and forming integral joints at intersections of the generally vertical members and the generally horizontal members that provide dimensional stability to maintain the orientation of the generally vertical members and form stable vertical water drainage channels.