If the AOV is installed in a highly trafficked area, we recommend adding edge protection for safety. For the RSL-R, its 160-degree opening angle should be considered, and fall arrest grids might be a better solution in such cases. 

Using adhesives is not generally recommended, as they may damage the PVC or polycarbonate materials.

The top of the base upstand of the roof AOV must be at least 300mm above the finished roof surface.

The RSL-R can be installed on roofs with a pitch of up to 20 degrees.

We do not recommend installing permanent ladders on our RSL-R, RLB-R, or other smoke vent models, as they may impact the aerodynamic and free areas, potentially affecting performance.

The RSL-R is generally maintenance-free, except for occasional cleaning with warm soapy water. Any repairs can typically be done from the inside.

 Yes, access from the roof is required for some maintenance tasks, such as replacing actuators. This ensures the process can be completed efficiently and safely. For most servicing, it is easier if the unit is opened first from the roof.

Maintenance for components like smoke vent systems is usually done inside, as part of the complete smoke vent system, which includes control panels and call points. Access to the components from the roof may be necessary for specific tasks.

Yes, if the actuator needs to be replaced, it can typically be done externally from the roof, making the process straightforward without needing to enter the building.

Current legislation regarding "roof lights" prohibits plastic linings in protected stairways. However, our RSL-R smoke vents open in the event of a fire, so the material is no longer in position during an emergency. Local building control interpretations may vary, and if plastic is a concern, we offer alternative options made from aluminium and glass.

Yes, the RSL-R is BRoof (T4) compliant.

A 2-hour fire rating is only required for dampers under EN12101-8 to provide compartmentation. Our natural smoke vents, like the RSL-R, are designed to let smoke out and typically comply with the B300 standard from EN12101-2:2003 Annex G, meaning a 2-hour fire rating is not necessary.

By default, the actuator is offset to the left side, but it can be offset to the right side upon request while maintaining full compliance.