Hi, I need some basic engineering done for a potential project; a roof top garden that will use a concrete slab.
I understand that the use of magnesium oxide will make things stronger
As such there will be a few design elements such as fish tanks that let light down to house below
Planter boxes etc and maybe a plunge pool. As well as a few huts etc
Size is aprox 12m x 20 and will sit on a brick house .