Vanessa writes from Bloomfield, Connecticut: "We bought a house that has a sunroom. It has baseboard forced hot air heat and air conditioning. It doesn't appear to be original to the house - but rather added on without a foundation. We're considering putting in insulation underneath this sunroom's flooring - but how? Any advice?"

Answer: You don't state whether there are joists under the flooring that will provide a cavity for insulation. Assuming there are, we recommend installing Kraft-faced R-25 insulation under the floor with the Kraft paper facing up toward the sunroom. This application may require supports or netting to hold the insulation in place.