Underpinning is complete at #2308 #LittleK. Pictures below show concrete being poured for the narrow side addition as well as the “rat slab.” Rat slab you say, eh?
New terminology for me, this slab — located in the crawl space at the soon-to-be back addition (aka future storage space in #2308’s case) — is actually a barrier meant to prevent burrowing animals from getting beneath your deck or patio. Despite its name, it is not solely geared towards rodents. This slab, per my research, will prevent the entry of raccoons, opossums, groundhogs, mice, skunks, and anything else that burrows. That’s the goal, anyway!
Bonus feature at #LittleK: the back slab has foam insulation below. No need for a vapor barrier!
Next up, framing!