Unlike drilled weep holes, open tubes and hollow joints may create additional problems because they provide an open pathway to the interior of the structure. Pests such as rodents or insects can take advantage of this vulnerability and enter the building unimpeded. Weep inserts assist in meeting the requirements for regular weeps without providing the opening for problems to “creep in”. Consequently, for new construction we recommend that every other weep (that isn’t a BrickVent unit) be a weep insert.
The dimensions for each weep insert are 3/8″ wide x 2 1/2″ tall x 3 3/8” deep