Manhole opening device is used exclusively to allow occasional access to the roof, for example in case of maintenance.
The opening is actioned from the inside with a locking/unlocking handle provided with one or two gas springs depending on the size of the dome. These gas pistons help the operator to open the dome until reaching an 80°-90° angle.
Upon request the opening from the outside is available.
For continuous skylights, manhole opening device is available with clear span 120 cm maximum.
AIR FLOW™ \ Electric opening device \ Electric opening device with motor and racks \ Manual opening device \ SG bound electric opening device \ U1 bound electric opening device \ Smoke and heat disposal openings \ Vertical™ \ GUARDIAN™ wind and rain detector \ CRX1 and CTX1 for 230 V AC motors radio controls \ Anti-fall and anti-intrusion grids \ 035 FX continuous skylights \ 045 FX continuous skylights \ K35 FX continuous skylights \ Low thermal transmittance profile BT \ Low thermal transmittance profile BT \ Sunshade sliding curtain and insect screen