Hatches of C, Е type (square, rectangular) are accommodated for flat and sloped roofs (with sloping no more than 10 %), covered with ruberoid, roofing paper or PVC membrane.

Description of standard rooflight:

Description of standard rooflight:
- upright base of galvanized steel sheet, 1.25 mm thick, height H = 300 or 500 mm,
- lower part of the base is equipped with a flange used for mounting to the roof structure,
- upper part of the base is profiled for a water removal system,
- thermal insulation, 20 mm thick,
- external planking of the thermal insulation that permits finishing of the base,
- filling in the form of cellular polycarbonate sheet,
- polycarbonate board, acryl domes or laminar board,
- optional control: pneumatic, electrical.

The height of the base, type and thickness of a heater, type of filling can be changed at the request of the customer.

Symbols:
1 – filling
2 – pressing frame
3 – supporting frame
4 – leaf cross-bar
5 – actuator holder
6 – smoke exhaust and ventilation drive
7 – venting actuator
8 – hook console
9 – upright base
10 – thermal insulation of the base
11 – leaf gasket
12 – base flange (100 mm)
13 – hinge
14 – external planking — galvanized steel sheet