Insulating garage roof, correct sequence of execution

Whether garages will need to be heated in the near future when there are only electric cars.

Back to the topic, our roof was sealed today.

1 coat of black paint
1 coat of pye 200s5
1 coat of v60 s4

Garage door from Hörmann is also installed.
The offered door with 20 insulation for an amazing price.

We will install the door on Monday and the windows will probably come in 2-3 weeks.

Online provider garage door?

Yes, everything went smoothly. It was then delivered by a Hörmann branch in our area. I now have it in RAL 7016, with M Sicke and Woodgrey surface and Promotic drive.

Monday or Tuesday the plaster will go on. But the roofer who was supposed to install the parapet simply doesn't get back to me, probably miscalculated by 600 euros. So I looked for a new one.. And now something is coming up again that drives me crazy, 1300 euros for the cheapest and 4300 euros for the most expensive for the same requirement. What kind of workload could that be? 8 hours max, right? Material costs about 600 euros at the local building materials dealer, at Ebay a maximum of 400. That's over 300 euros an hour for the most expensive. No one to blame but themselves who studied psychology for 8 years only to earn 80-100 euros at most later. I'd rather do it myself.

Attic for the garage roof? That expensive? Can you post an offer? So anonymized?