Masonry Weep Rope

The water from the back of the wall is adsorbed by the cotton and the on the other side it is evaporated.
Masonry weep rope. I would agree for the most part but ropes not acceptable here by code anymore. Rope wicks can be made from cotton sash cord. Weeps may also be necessary in a retaining wall so water can escape from the retained earth thus lessening the hydrostatic load on the wall and. One of the first commonly employed weep details was the sash cord or rope weep.
Clear openings only with air weeps at the top of every wall whether it be sill height or full wall height. In my opinion i think a 18 length of 3 8 cotton rope does a lot more than the tubing or those nylon weep vents. Mortar net weep vents are available in a choice of attractive colors to match the mortar or brick beings used eliminating open holes and dark shadows. Grainger s got your back.
A newly completed masonry project in suburban chicago seems to possess more weep ropes than usual protruding from the brick wall. Mortar net vents help ensure that weep holes stay open and that walls always breathe drain and dry quickly and thoroughly. Cotton wicks cotton wicks are used to form another type of weep system. 2 5 8 h x 3 1 2 l x 1 2 thickness.
It can be found detailed in the national concrete masonry association s single wythe details 15b. Drainage materials used at the bottom of the cavity are most effective for open type of weep. This is placed in the joints and the other end is extended up to the cavity wall. These weep ropes were spaced at 8 inches on center.
In other cases the sash cord was fastened vertically up the backside of the cavity. A 1 4 to 3 8 inch diameter rope is installed in joints at 16 inches on center. Bia does not advocate one type of weep system over another. These type of weep holes are formed by using a rope of up to 12 inches in length.
The rope should be 10 to 12 inches long and extend through the veneer face and up into the cavity wall above the height of any possible mortar droppings. Weep systems in use include wicks oiled rods weep tubes open head joints and vents. With the remainder of the weep systems spaced at 12 o c. Wicks should be spaced at 16 o c.
The weep hole must be sized adequately to overcome surface tension. Cotton all purpose weep cord natural 100 ft 20tl84. Looking for grainger approved 3 8 in dia. Cotton rope wicking weep holes.
Easy online ordering for the ones who get it done along with 24 7 customer service free technical support more.