Why are MTI’s weep systems better than weep tubes or ropes?
There are people that believe weep tubes and sash core ropes efficiently drain or wick moisture out of cores and cavities of masonry walls. They are wrong. The only time these devices work is when you do not need them. Water does not drain out of the tubes or wick through the ropes. What actually happens when moisture does drain out of walls at these points is when the tube or rope forms the bottom side of the bed joint and voids are created at the 5:00 and 7:00 position. Why would moisture rise up to run out a tube? And as far as ropes wicking moisture out of cores or cavities or masonry walls, I have one recommendation: do not get in a wicking contest with masonry. MTI weep systems work, because they form the bottom side of the bed joint of mortar creating 4 (¼” x ¼” holes) every 9 ½” at the lowest point of the core or cavity of the masonry wall. Weeps work when there are a lot of them and when they are all at the lowest point of the core of cavity. It’s a math thing (more works bett
