ᐅ Solar-powered or electric roof window blind

Hello

We are currently building with a developer and will have a roof window installed.

We want to retrofit a roof window blind later (which the developer does not offer).
All of our shutters are electrically operated with wall switches.

My question is: What is the best way to connect the roof window blind?
Our roof window will be Roto, so we should use the Roto roof window blind.

Should it be solar-powered with remote control or electric with a wired power connection and a wall switch?

Our electrician only wants to install the power connection in a junction box under the insulation and sealing. This means that later the insulation and sealing would have to be cut open to pull out the cable and then resealed.
This resealing would probably create a weak spot in the roof.

Solar:
Advantage: no need for a power connection and no need to cut through the roofing membrane.
Disadvantage: you are limited to the remote control and cannot integrate it into smart home systems.

How does the solar function work? Does the battery get enough power constantly (the roof window is on the north side)?

Electric:
Advantage: always has power, can be connected to the same switches as the other shutters, and can easily be integrated into smart home systems with flush-mounted actuators.
Disadvantage: the power cable must be routed through the roofing membrane.

My question is, what would you recommend?

Does anyone know how to restore the roofing membrane to 100% watertight after installation?

Could someone here tell me what you would recommend?

A solar-powered roof window shutter with remote control, or a roof window shutter connected to the mains with a wall switch?

For a roofer, it shouldn’t be a problem to cut through the dormer, pull the cable out, and reseal it properly, right?

100% wired.
Have the connection routed through the roof membrane. There are collars for the roofing membrane, for example KAFLEX.
You will need power and control (either combined in one cable or two separate cables).
With Roto, be careful: there are 24V and 230V blinds. Still, Roto is the best choice.

I need to correct myself.
It depends on your roof structure. If you are using exterior roof insulation (also known as above-roof insulation), this method won’t work because you won’t be able to reach the connection.
That’s why it would be better to run the roof window connection through the membrane and connect it there, so inside the building.

Yes, we are also getting Roto roof windows.

This means we have to use a Roto roof window blind as well.

I also thought that the best option would be a wired connection.

Unfortunately, the electrician refuses, or it is a requirement from the builder, not to run anything through the roofing membrane.
Therefore, the electrician can only place the cable for the shutter inside a flush-mounted box at the top of the roof window.
The flush-mounted box will have a blank cover.

Then, the insulation and sealing on the outside have to be cut open to pull the cable out and then resealed.

If you’re still talking about integrating into a smart home, you really can’t avoid Roto.
With Roto, you can also order 230V roof window blinds, which can then be operated normally with a roller shutter actuator.