Non-metallic building materials, in the nature of strips, gaskets, and beads for construction joints in walls, floors, and ceilings of buildings to prevent the spread of fire, smoke, and heat, and restrict and dampen sound; non-metallic building materials, namely, drywall-finishing strips and drywall-finishing corners being corner beads; non-metallic building materials, namely, compressible intumescent fire retardant foam used in construction joints in walls, floors, and ceilings; fire abatement foam for use in commercial and residential building and construction; non-metallic building materials, namely, fire-resistant foam strips