We are in the planning stages of a bungalow with a flat roof. Right now, there are vendors who want to build a flat roof with wood and others who want to build with reinforced concrete. In our opinion, reinforced concrete would be safer because wood naturally works and expands (airtightness, etc.), but reinforced concrete is also quite expensive.
What is your experience?
But also concrete and steel – people like to build both because the two materials have the same coefficient of linear expansion, otherwise it wouldn't work.
A reinforced concrete ceiling isn't exactly static either! I would put it down to who I work with. Take what your home builder does best, he will do best.
You can learn from the construction mistakes of the 70's and 80's – do not use wood in a flat roof!
When planning a later remodel, such as an extended roof, I would opt for reinforced concrete and do the construction right away – you will later regret not doing it that way.
Not necessarily – wood beam ceilings can extend very well.
Wooden ceilings deteriorate quickly if water gets inside. The insulation has to be completely removed, etc.
Nothing to think about here. We have dozens of flat roofs in the new construction area here, and with the exception of prefab homes, no one has ever taken wood.