Looked at a house yesterday built about 1950, single story, that ‘looked’ like a concrete foundation. Sides of foundation looked good, no cracking visible, etc.
On the interior, the hardwood flooring squeaked. Walking over it, could feel firmer/softer places. Able to see 1x4 t&g subfloor in mechanical closet and at doorway into kitchen (vinyl flooring).
One return air duct was located in entry hall near center of house, but in examination, the ducting traveled down appx. 2’ below floor level and turned toward end of house where furnace was located. Looked into attic thinking they traveled the duct up in wall cavity, but did not find any evidence in attic.
I guess the bottom question is 1) could this be a full slab foundation, but the flooring was installed over ‘sleepers’, or 2) perimeter pier with no venting ?
Anyone seen return ducting like this before? :roll: