Cheriehoop
Moderator/ 2019-20 Iggy Winner Reg Season Rcd
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Support structures must be built to support any new fixed roof no matter material or design, These structures could be built in such a way that some could be used as cranes with the proper design. This type of crane is often used in large buildings with the body of the crane being left as elevator shafts on completion of their crane function. Cost would rise some but it could be done. The bigger question is can the underlying soil/bedrock support this kind of roof? the weigh of this roof will not be insignificant. Think of the tower of Pisa if you wonder why this would be important. Pilings driven to bedrock might be necessary and that might create problems of its own.
Anyone wondering why this is taking so long should consider both the engineering problems and the financial ones. The engineering problems are significant for both construction and the viability of a fixed roof over such a large span given potential snow loads in this climate, wind might also have to be factored in for any potential design. Fixed roofs with much smaller spans have failed under unfavorable climatic conditions.
I am not saying this can not be done, only that, it better have some solid engineering behind it.
I would imagine the options and huge engineering factors also make determining the fiscal impact a moving target too. Difficult to budget and plan when there are so many variables that can effect the costs.