Most popular foundation methods
Foundation walls and strip footing is currently the most popular foundation methods
But these methods are not as fast and convenient as the ground slab.
Basements:
The Izodom elements can be used to build basement walls. They are erected just like the outside walls. However, due to the ground pressure they need to be reinforced and the styrofoam-compatible damp proofing membrane should be made wherever the groundwater level is high.