You likely know the importance of insulation in your home. It keeps the heat inside from escaping so you don't have energy bills that are too high. You may think you have all the insulation you need already. However, if the following areas don't have any or enough insulation, you may be losing money in utilities.
Builders usually don't insulate the garage. You've probably experienced that fact during the cold months when your garage is cold. The wall between your house and garage is likely insulated to keep heat from escaping there.
However, many homeowners use the garage for more than parking their cars. As such, they often add a garage heater. If that's your plan, add insulation to the garage to prevent that fresh heat from leaking out.
Heat rises — most people learned that as a kid. Well, what's the top-most room in your house? If you answered "attic," then consider taking a trip upstairs and seeing if it's insulated. Chances are, it's not.
As with the garage, builders often insulate the structure between the main house and the attic, in this case a ceiling. However, the entrance to the attic probably isn't as well-sealed as the one to the garage. So, you could well be losing heat into the attic. Therefore, consider adding insulation to this room to keep it from dissipating completely.
Whether you have an attic or not, you have a roof. And the ceiling under your roof may not be insulated. So heat may well be escaping through that part of your house. What's more, the warm air trying to escape through the roof can cause ice damming. This situation arises when snow on your roof melts then freezes at the eaves, which can result in water damage to structures underneath.
Because you'd have to have the insulation installed under the roof, rather than between a roof and ceiling, you might need spray foam insulation. The foam adheres to the underside of the roof and expands to fill the space.
Just because a room is insulated doesn't mean you're in the clear. Unless your home was built recently, and specifically for energy efficiency, you may have rooms that are under-insulated, so you're not getting the maximum efficiency from the existing insulation.
Consider hiring a home energy auditor. These professionals will go all around your house and determine if the existing insulation meets the guidelines for recommended insular values. They can advise you on which areas are under-insulated. Then add insulation to your house to make it more energy efficient.
For more information about insulation, contact a local insulation company.