Thin shell concrete can be utilized to build extre.
How to build a concrete dome roof.
Derek markham is a green living expert who started writing for treehugger in 2012.
These frames can either be removable concrete forms or stay in place insulating concrete forms which simply become a part of the finished roof.
Set supporting steel joists at 16 3 4 on center.
Rest the bottom chord of the joist on a supporting wall or a beam for larger buildings.
Then a concrete mixture is poured spread through the framework and reinforced with steel bars which serve as a kind of skeleton for the cured concrete.