TILATH - DIAMOND MESH OR SELF-FURRED LATH is diamond mesh lath, regular or self-furred, to which offset asphalt saturated kraft building paper has been applied. The grade D paper typically used is water-resistant, yet highly vapor permeable. Tilath reduces moisture penetration while allowing for the dissipation of moisture vapor from within the structure. Foundation weep screed at the bottom of all framed walls aids in the elimination of moisture that might reach the surface of the building paper.