Manufactured from hot galvanized steel , the distinguishing feature of rib lath is the evenly spaced strips of solid metal (ribs), that provide stiffness to the sheet. Rib lath is manufactured with various sizes of ribs. The ribs of flat rib lath have a depth of not more than 3 mm (1/8 inch flat rib). Flat rib lath, like diamond mesh metal lath, provides all purpose mortar support, but its added rigidity due to the ribs permits wider spacing of supports. Rib laths incorporating deeper ribs are also available. The deeper (3/8 inch high rib) ribs facilitate self furring and the additional rigidity permits wider spacing between supports than with flat rib lath. Rib lath is the form of metal lath that is usually used on soffits.

Material: ASTM C847

Installation: C1063 (exterior), ASTM C841 (interior) and EMLA-920

Model Number: 3.4LBS/4.0LBS