For other applications here s our standard chain series 12 volt electric window opener for controlling vents windows skylights shutters and any other item you would like to move with a motorized actuator.
Roof window opener.
Can be installed as a left hinged or right hinged roof access window.
Locking device keeps sash in open position.
This heavy duty greenhouse window vent opener uses a hand operated thumb knob to open and close greenhouse windows.
Screwjacks are particularly popular in conservatories orangeries and skylight windows on a pitched roof but are also used in other situations such as flat roof vents and low level windows on a vertical wall.
Roof access roof window.
Easy roof access for repairs maintenance emergency and egress.
Basically a screwjack is threaded brass rod that when twisted using an opener pole of handle extends to open your window or roof vent.
The automatic temperature control does not function on these units.
This method is easy to implement especially on a flat roof provided you have access to the roof.