Like ventilation, insulation can help decrease your energy bills. Most homes are poorly insulated causing you to lose almost half of the air you’re a/c unit and furnace are generating to cool or warm your home. Having a properly insulated home will provide a consistent temperature around your home. Without proper insulation you are pushing the air directly into your attic that escapes through the attic.
Having an improper ventilated or insulated home is like turning the heat all the way up during the winter and opening the windows to let the warm air escape. Make sure your home is prepared for all seasons!