| 摘要 |
<p>An elongated extruded thermoplastic building component for use in the erection of a thermoplastic building structure, said component (9) presenting spaced interlocking means (19) extending the length thereof for sliding interlocking engagement with mating thermoplastic member (13), and at least one longitudinally extending web (24) supporting said spaced interlocking means (19) in spaced relation with said web (24) having a plurality of openings (25) cut therethrough inwardly of said interlocking means (19) spaced along the length thereof. In its most common form the component (9) is extruded with a core (21) of reinforced thermoplastic material having a coextruded smooth skin (22) covering exposed surfaces thereof and is rectilinear having planar spaced walls (23) connected in spaced relation by spaced planar webs (24) extending the length thereof, with the spaced walls (23) being provided at least adjacent one longitudinal edge with spaced inwardly projecting interlocking means (19) extending longitudinally thereof for interengagement with a mating component, at least one of said webs (24) having a series of circular holes (25) cut out therefrom along the length thereof with the perimeters of said holes (25) being within the space between said inwardly projecting interlocking means (19).</p> |
