I think it was closed because there was another post about it and we decided to sort of merge them together. You also said it was okay because the new post was more detailed, so a mod might have mistook it as you were okay with that guide being the “main” one.
I close Topics, especially guides, when the question is answered. This forum is not a place for chat. Leaving Topics open is inviting spam, abuse, and clutter. The reason I closed your initial Topic was because it was good! It told people how to add roofing and was a great tutorial. Case closed, no need to have it open any longer!