The warehouse or greenhouse has a plate steel gutter with inwards folded rims. The warehouse (1) includes columns (2) supporting parallel joists (3) with transverse directed gutters (4). Gutters support roof (5) which at regular distances is supported by parallel rods (6) and which at bottom (8) are fixed to gutter rims (7) and at top (9) are connected to cam profiles (10). Gutters are connected to columns (2) and/or joists (3), by gutter supports (11). Condensate discharge gutters (12) are fitted below gutters (4). Each gutter mfd. from curved steel plate.
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