Stairwell Insulated

With the tight stairwell down to the basement, we did not have much space to add insulation. We installed 1" thick pieces of insulating styrofoam on that wall, which has an insulation value of R5. I expect this will do little for insulating the house, but hopefully with the addition of vapour barrier and drywall, at least this stairwell will not be drafty. With most of the house now insulated at R14-R28, this will be one of the "weak spots" in the building envelope.