I am a "Professional" DIYer. I am currently building a very cool earth sheltered home with my partner in Oregon. My experience includes building boats, custom furniture and cabinets and just gerneral "Puttzing" in the shop. Steel and concrete is a new thing for me.
However I have to...
I'm new to this forum so please let me know if I'm doing something wrong. Also, English is not my native language so please bear with me :).
My first question is as follows:
When you build a fairly large public under ground structure, such as a parking lot, or a shopping center...