ventilating equipment: roof bases
Roof bases A and B type
Roof bases type A or B made of PVC are designed for fixing roof fans and other end elements of gravity ventilation on the roof or ventilation chimney. Type A roof bases are used in ventilation systems as load-bearing elements of intake and roof apertures with a rectangular cross-section.
Types of type A bases:
Type A I – base without a duct straight connection and adjustment,
Type A II – base with duct straight connection without adjustment,
Type A III – base with duct straight connection and air flow regulation.
Types of B-type attitudes:
Type B I – base without duct straight connection and adjustment,
Type B II – base with duct straight connection without adjustment,
Type B III – base with duct straight connection and air flow regulation.
| Size d | Sizes [mm] | Weight [kg] | ||||
| d1 | a | a1 | h | h1 | ||
| 125 | 175 | 366 | 300 | 110 | 40 | 2,4 |
| 160 | 210 | 410 | 357 | 110 | 40 | 2,5 |
| 200 | 250 | 456 | 405 | 119 | 40 | 3 |
| 250 | 300 | 516 | 470 | 125 | 40 | 4 |
| 315 | 365 | 604 | 552 | 150 | 40 | 4,5 |
| 400 | 460 | 712 | 660 | 170 | 40 | 5 |
| 500* | 620 | 872 | 820 | 190 | 40 | 8 |
| 630* | 700 | 1012 | 960 | 225 | 40 | 10,2 |
*made of galvanized sheet
