J-Weep High-Back Plaster Stop is a J-shaped square nosed trim manufactured from galvanized steel. The 1-3/8" ground is designed for use with 1" of foam, lath and a one coat 3/8" proprietary stucco system. The foam will be placed over the drainage holes to allow drainage and the high backed rear flange serves as the rear flashing which is covered by the building paper to encourage drainage.