Yes, see V7.7 (with ASL Journal 8 errata [in red]):
7.7 INDIRECT FIRE: Indirect Fire vs a Roofless Location of a Gutted Building receives a +2 TEM (even if fortified). Indirect Fire (including non-SW mortars in upper-Level Locations) is allowed from a Roofless Location of a Gutted Building (but AA fire vs Aerial units is not). Indirect Fire vs a unit in a non-Roofless Location of a Gutted Building receives a +1 DRM for each non-rooftop level of the building above it.
V7.7: In line 3, after “Indirect Fire” add “(including non-SW mortars in upper-Level Locations)”.