Abstract: A building panel having a hollow elongate structure with a generally rectangular cross-sectional profile. The elongate structure has first and second outer skins joined by parallel first and second side walls. A connection device of first and second ribs is on each side wall to connect to adjacent panels to form a segment of a wall or roof. The elongate structure includes two inner web skins extending between the first and second side walls to divide the interior of the elongate structure into three chambers. The triple chamber profile provides the panel with additional structural strength and rigidity, as well as improved thermal and sound insulation properties. The lower chamber may be fitted with a polycarbonate sheet to increase thermal and acoustic performance. The panel is polycarbonate.

Abstract: A building panel having a hollow elongate structure with a generally rectangular cross-sectional profile. The elongate structure has first and second outer skins joined by parallel first and second side walls. A connection device of first and second ribs is on each side wall to connect to adjacent panels to form a segment of a wall or roof. The elongate structure includes two inner web skins extending between the first and second side walls to divide the interior of the elongate structure into three chambers. The triple chamber profile provides the panel with additional structural strength and rigidity, as well as improved thermal and sound insulation properties. The lower chamber may be fitted with a polycarbonate sheet to increase thermal and acoustic performance. The panel is polycarbonate.