Bungalow flat roof - reinforced concrete vs wood

Good evening,

we are planning a bungalow with a flat roof. Now there are providers who want to build the flat roof with wood and others with reinforced concrete. In our opinion, reinforced concrete would be safer, as wood naturally works and expands (tightness, etc.), but reinforced concrete is also significantly more expensive. What are your experiences?

For future remodeling plans, e.g. [ausgebautes Dach], I would use reinforced concrete and have it structurally engineered right away – later on, you'll regret not having done it that way.

For a later remodeling plan, e.g. converted attic, I would take reinforced concrete and also have it structurally designed right away - later you regret not having done it that way.

Not necessarily - wooden beam ceilings are very easy to convert.

Wooden ceilings are quickly completely damaged in the event of water ingress. Insulation must be completely removed, etc. There is absolutely nothing to consider here. We have dozens of flat roofs in the new development area, and except for the prefabricated houses, no one has used wood.

Wooden ceilings are quickly a total loss in case of water ingress. Insulation has to be completely removed, etc. There is absolutely nothing to consider. We have dozens of flat roofs in the new development area here, and except for the prefabricated houses, no one took wood.

We now have a solid manufacturer, who would of course use reinforced concrete. Then two prefabricated house providers, one with reinforced concrete and one with wood. The one with wood is quite a bit cheaper for the same project (otherwise pretty much the same quality), but we do have doubts whether it will not be regretted later.

we are in the planning stages for a bungalow with a flat roof.

But please don’t say that it’s a bungalow because you save the stairs and a flat roof because it’s the simplest :-)