Abstract: A precision built staircase kit is disclosed. The kit includes a plurality of stringers that include a structural stringer, a decorative stringer and a winder stringer that are cut by a high precision machine, a skirt board, a plurality of risers with a pair of ends and a plurality of squares. The staircase also includes a plurality of winder treads wherein the stringers, the skirt board, the risers and the treads form a plurality of stairs, a recessed tread end cap, one or more cover joints and corner joints to cover a plurality of cuts, a decorative panel disposed on the back of staircase after the stairs are formed and a packaging box that stores a plurality of unassembled staircase components and that forms a cabinet or a closet when empty. The staircase may be assembled from a kit with a method of assembling.

Abstract: A precision built staircase that includes a plurality of stringers that include a structural stringer, a decorative stringer and a winder stringer that are cut by a high precision machine, a universal skirt board, a plurality of risers with a pair of ends and a plurality of universal squares. The staircase also includes a plurality of winder treads wherein the stringers, the skirt board, the risers and the treads form a plurality of stairs, a recessed tread end cap, one or more cover joints and corner joints to cover a plurality of cuts, a decorative panel disposed on the back of staircase after the stairs are formed and a packaging box that stores a plurality of unassembled staircase components and that forms a cabinet or a closet when empty.

Abstract: A sound and/or moisture barrier underlayment suited for use on a roof or floor surface to provide a substantially flat and level surface, comprises at least first and second strips of insulation membranes (10) laid down one next to the other in a coplanar relationship. The first and second strips (24, 26) have a thickness W1. An overlap joint (28) is provided between the first and second strips (24, 26). The overlap joint (28) has a thickness W2 substantially equal to or less than W1 to provide a free-bump transition between the first and second strips (24, 26) while preventing straight-through infiltration.

Abstract: A sound and/or moisture barrier underlayment suited for use on a roof or floor surface to provide a substantially flat and level surface, comprises at least first and second strips of insulation membranes (10) laid down one next to the other in a coplanar relationship. The first and second strips (24, 26) have a thickness W1. An overlap joint (28) is provided between the first and second strips (24, 26). The overlap joint (28) has a thickness W2 substantially equal to or less than W1 to provide a free-bump transition between the first and second strips (24, 26) while preventing straight-through infiltration.

Abstract: A sound and/or moisture barrier underlayment suited for use on a roof or floor surface to provide a substantially flat and level surface, comprises at least first and second strips of insulation membranes (10) laid down one next to the other in a coplanar relationship. The first and second strips (24, 26) have a thickness W1. An overlap joint (28) is provided between the first and second strips (24, 26). The overlap joint (28) has a thickness W2 substantially equal to or less than W1 to provide a free-bump transition between the first and second strips (24, 26) while preventing straight-through infiltration.

Abstract: A flooring system is provided with a combination of features which work with the expansion/contraction naturally occurring when wood is subjected to moisture variations. Part of the process is taken within the plank (52), which is the internal or intra-plank compensation system (82) and another part is taken by interacting between the planks (52) which is the inter-plank compensation system (50, 60).