Aside from an insulation issue, you may have an air infiltration issue. The
crawl space is probably vented to the outdoors and if there are large gaps
where the flooring meets the wall structures, you could have surprising
large air movement. On a really cold and windy days, you may feel drafts
down around the baseboards or anywhere there might be penetrations. If the
floor was old tongue & groove, there might even be air coming right through
the floor. If this is the case, insulation would help, but not eliminate
the infiltration, and something like Tyvek on the bottom of the floor joists
may also be needed. One of those energy consultant guys with the infrared
cameras could detail out the problems pretty fast.

bill

"Phil Schuman" wrote in message
. ..
well - title pretty much lays down the question...
We have a 2-story house,
with the family room behind the attached garage,
and above a stone crawl space.
The other part of the house area has a full unfinished basement.

I've had extra insulation blown into the attic area above the family
room,
but have done nothing in the crawl space under the family room.
This room seems to be a couple of degrees "different" from the rest of
the house...
Summer - it's not as cool with the A/C running.
Winter - it's not as warm with the furnance running.

Would laying some insulation in the crawl... help ?
along the sides - from foundation to where the floor meets the sides
under the floor - between the joists

If so - what kind of insulation and what kind of facing -

tnx for any comments - Phil -