Can multiple ⊏⊏⊏ units be stacked on top of each other? If so, how high?
The load spreading is changing with every additional floor. Additionally, precautions for earthquake safety are changing, too. Higher stacks require some modified details and certified load bearing standards compared to single floor units. But generally, the ⊏⊏⊏ concept is designed and optimized for multi-floor stacking and provides outstanding noise insulation between floors. Typical stacks can reach up to seven levels. All electrical, water, gas and waste water systems are layed out for stacked use by default.
CHI ARCHITECTURE CORPORATION MMXIII-MMXIX