Is weep screed necessary?

Weep screeds are common and code required (IBC Section 2512) for cement plaster over framed walls. Typically they should be set at or below the foundation plate line to allow moisture to exit or “weep” out and to prevent ground moisture from wicking up.

Why are there holes in weep screed?

How Stucco Weep Screed Works. The weep screed, typically installed at the foundation sill line or about six inches above the grade, is a place where excess moisture can drain out of the exterior. It will contain drainage holes for the moisture to “weep” out of, so that it does not damage the wall.

Why do we weep screed?

The purpose of a weep screed is to allow incidental moisture that may enter the wall system through a window leak or absence of proper flashing or sealants, to convey to the exterior.

What does mid wall weep screed stand for?

Sometimes called, “Mid-Wall Weep Screed”, it performs as an un-punched weep screed allowing excess moisture to escape the back of a stucco membrane.

What’s the name of the weep screed in stucco?

Sometimes called, “Mid-Wall Weep Screed”, it performs as an un-punched weep screed allowing excess moisture to escape the back of a stucco membrane. This screed also performs as an expansion (control) joint with twin grounds.

What’s the minimum thickness for mid band weep screed?

The profile is manufactured with a 3½” nailing flange as required by code. Locally, 7/8” thick stucco is the minimum required over wood/lath and 5/8” Stucco thickness is the minimum over Masonry Block. Notice that the Mid-Band Weep Screed transitions from 7/8” to 5/8” to accommodate these different specifications.

Do you overlap the flange of weep screed?

It is important for the water-resistant backing paper and metal lath to overlap the nailing flange of the weep screed in order to guide the water to the exterior. Check with local building codes for the proper clearance above grade.