CAN A MODULAR HOUSE BE INSTALLED ON SLAB? CAN A MODULAR HOUSE HAVE A BASEMENT?
No, modular structures cannot be installed on slab. The reason is that the hold-down straps required for foundation connections, wind shear requirements and seismic zone activities are wet-set into a concrete stem wall and need to have, minimally, a crawl space so that the straps can be manually attached to the inside of the module rim joists once the modules are set on foundation. Yes, modular structures can be installed with basements. Modules have to be installed on a raised stem wall system, be it crawl space, walk-out basement or full basement.
