Unless you live where you never have to use heat or air conditioning, insulation needs to be an important part of your home. It keeps your house cool in summer and warm in winter. It reduces noise levels even as it reduces energy bills. Homes and buildings with insulation use half the energy of those without insulation. Lining your “Thermal Envelope” – adding materials that don’t readily allow heat to leak through your walls, ceilings, floors, from around your home’s foundations and it’s ductwork saves energy by keeping heat in during the winter and keeping heat out during the summer.