Is it worth the time and money to insulate basement ceiling?

By | December 3, 2019

I live in a house built in the 1920s (Tennessee, USA). The attic is fairly well insulated, but currently there is no insulation between the unfinished basement and the living space. There is a moisture barrier, and most of the old vents to the outside have been blocked, but the foundation is stacked stone and it definitely doesn’t feel very air tight. During the cold months, the front two rooms of the house (above the area in the 2 photos) can feel a little drafty, but it doesn’t seem to be coming from the windows/front door.

I’ve estimated the cost of materials to do this work to be in the $600 range, plus the time it would take me. Would installing insulation between the floor joists reduce our energy bills in a meaningful way, and would we be able to feel a difference? We plan on being in this house a long time, but there are other things I could invest our time and money in if this isn’t a very significant efficiency improvement.

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