Patent ID: 6122877
Filing Date: 2000-09-26
Classification: E04F,Y10T

Abstract:
A siding assembly for an exterior wall surface of a building made up of a plurality of siding units, said units adapted to be affixed to a building with similar units in overlapping horizontal courses with the units of each course lying in overlapping relation, said building having a support structure, each of said units comprising:a profile made of a composite material including a thermoplastic polymer and a cellulosic fiber, said material comprising about 35-60 parts of fiber and about 45-70 parts of polymer per each 100 parts of said composite material;said unit comprising a main body portion including a front face and a rear face, said front face being exposed on assembly of said siding unit on a building, said front face being convex; an upper portion extending from said main body portion, said upper portion having a plurality of slots, said upper portion including a tongue means; anda groove means sized and configured to mate with said tongue means, wherein said groove means is located behind said main body portion.