A building element for a structural building panel

摘要

A building element (12) that is an elongated extrusion of plastics material. The element (12) can be used to form straight or curved walls (11). Like elements (12) are secured together by transverse relative movement and snap engagement of flanges (22) in recesses (21). In one embodiment the element (12) has a longitudinally extending seal projection (26) that aids in sealingly connecting engaged elements (12).