Mortar Net® is easy to use. It requires no fasteners or adhesives, no special skill or tools. After the first one or two courses of bricks are laid, place a continuous row of Mortar Net® in the cavity or collar joint on the flashing against the inside of the outer wythe at the base of the wall. To prevent mortar bridging between the outer wythe and inner wall, install flashing and any material used as filler to match cavity width to product size extending from the bottom of Mortar Net® at least 6" above the top of Mortar Net. Multiple thickness of Mortar Net® may be installed to match cavity widths and if excessive droppings are expected. Inspection, preparation, and installation procedure for multiple thickness is the same as for single thickness. When installing multiple thickness align the dovetail sections with each other. Cavity should be no more than ¼" wider than 1.0" or 2.0" thick material and 0.4 thick material should touch both the outer and inner wall, insulation or filler used to adjust the cavity size. Mortar Net® is compressible to allow for variation in wall cavities.