Patent ID: 7386956
Filing Date: 2008-06-17
Classification: E04B

Abstract:
1. A device in combination with and for protecting a weep hole channel device located above a top surface of a foundation wall, draining water and directing mortar droppings/debris from a single wythe wall comprising: said single wythe wall composed of a plurality of structural masonry elements having multiple courses including a bottom course, each masonry element forming at least one hollow inner cell, the bottom course of masonry elements resting on said top surface of said foundation wall without flashing and having inner cells thereof communicating with said weep hole channel device located below said bottom course of masonry elements above a top surface of said foundation wall; a separate upwardly extending water-permeable body in each hollow inner cell in the bottom course masonry elements of said single wythe wall to permit water to pass through to said weep hole channel device while preventing passage of mortar and other debris; each of said upwardly extending water-permeable bodies having a lower end substantially filling its cell area and covering an underlying drainage weep hole channel device and a tapering transverse cross section which decreases upwardly from said lower end to allow falling of the mortar and other debris in the respective inner hollow recess cells onto a surface around each of said upwardly extending water-permeable bodies but at the same time to prevent blockage of said drainage weep hole channel device; whereby water in each of the inner cells of masonry blocks of the single wythe wall can flow through a respective one of said upwardly extending water-permeable bodies into the weep hole channel device and outside of the single wythe wall.