BUILDING PANELS AND BUILDINGS USING THE PANELS
A building panel (10) comprises facing sheets with edge flanges (11, 12) with an infill (13) therebetween. Screws (16, 17) fix adjoining sheets together. Adjoining panels form walls or roofs. Joined panels as walls are caught between upper and lower C-section plates (35, 34). Roof panels can rest on a ridge beam flange (54, 55) with flanges overlapping top ridge beam flanges (46, 47). The infill (13) can be a foam material with V-shaped grooves receiving facing sheet corrugations therein.