Uncertain whether the Lapine House will be occupied seasonally or year round, and in an effort to minimize unnecessary material consumption, insulation was installed only in essential areas during renovation. Because hot air rises, the attic is a significant point of heat loss in most houses. To eliminate this heat loss, we thoroughly insulated the attic and rebuilt the floor. In addition, we insulated the walls of the kitchen and full bathrooms to ensure that plumbing was well insulated. In both installations we used Johns Manville formaldehyde-free insulation. Although this house has always been inhabited year round with little or no insulation, we would encourage new occupants to consider installing blown cellulose insulation which is a simple, inexpensive and eco-friendly option if they intend to reside in the home during the winter.