Hello, I'm pretty sure it's just regular glass. On our plans some windows are marked as smart glass so we could reach our energy rating but there's nothing for the skylight. We were worried about heat too but the sales consultant advised the heat would mainly come through once its directly above skylight so hopefully he's right.
I managed to get a picture on the weekend where you can actually see the sky as there was no glare, it's so cool!
Excited to see once they frame it.
It seems the salesperson advice incorrect. I just think the way how solar panel receive solar energy despite indirect sunlight, the radiation can heat up the space through the clear glass.
There will only be direct light down the skylight an hour or so a day and it might be smart glass, so a little UV repellent but I'm not 100% sure on this. This room will be closed off for a while anyway so shouldn't bother us as we wont be in there!