Dormer windows made of zinc - Is grounding required there?

Hello dear forum,
I have a perhaps atypical question, but sometimes someone knows the answer :-)
In my apartment, I have two dormer windows made of zinc. Do they actually need to be grounded when installed?

I am asking this in the context of possible lightning attraction during thunderstorms.

I look forward to a "helpful" tip,
Thanks Joel

For most single-family houses, external lightning protection is not required today. If that were the case, the metal dormer would have to meet certain requirements regarding the material and be connected to the grounding system. The question is whether you live in a building for which an external lightning protection system is required.