If you plan to use your pool house year round, we recommend insulation. Insulation will keep the heat in and the cold out, or on a hot summer day, the cold in and the heat out. Keeping with the high standards of our materials, we use pink 4" thick fiberglass insulation with an R value of 13, which meets building codes in 48 states. This option includes full wall and ceiling insulation. Insulation makes it possible to control the climate in your pool house. So, sit back, relax, and enjoy your pool house, 12 months a year.