ECOSTRUCT

Chicken coops; Millwork, exclusive of cabinets; Non-metal trellises; Non-metal trenches for use in construction of basement waterproofing system; Nonmetal tubular liners for the lining of sewer systems; Rock materials used in building flooring, roofing, countertops, walls, cladding and fireplaces; Stepping and footing stones of concrete or wood for use in lawns and pathways; Water-pipe valves, not of metal or plastic; Waterproofing system comprised of non-metal wall system elements designed to prevent entry of moisture and to prevent growth of mold; Wood joists