Storm Shelter under slab Foundation?
I've never owned a house with a storm shelter, basement, crawl space etc. But am in the process of researching for our next build and read somewhere that storm shelters/basements are usually not built under houses with slab foundations....is this correct?
We've always built mostly on slabs in my area (Lower Alabama). For our next house we are still planning to use a slab foundation but would like access to a storm shelter/small basement (20'x 10' ish). We have no need for a huge basement that extends the entire size of the main floor, just a room large enough to ride out hurricanes/tornadoes which frequent the area. We're not building in a "flood zone" so flooding isn't usually an issue, just high winds, tornadoes and the occasional pine tree falling on your house.
Any advice or information on building a small concrete room underneath a slab foundation?
Link to the house plan we're using (basement access is near front entry door): http://www.thehousedesigners.com/plan/vida-de-la-confianza-2138/