Do you have enough insulation in your attic? If you live in a fairly cold climate and you only have one layer of fiberglass insulation, there's a good chance adding a second one will help keep your home warmer and your energy bills lower. To find out for sure, use an insulation calculator to find out how much insulation you need based on your location. If you do find out you need more insulation and decide to add it, follow these tips to make sure you do so safely and effectively.

Protect yourself.

Fiberglass can work its way into your skin, causing painful splinters. You don't want it in your nose, eyes, or lungs, either. Before you start unrolling the insulation, put gloves, a face mask, and long sleeves on for protection. If you have long hair, tie it back so you don't end up with fiberglass in it.

Keep kids and pets elsewhere.

You wouldn't want your kids to touch the fiberglass, and you don't want your pets to bite it or play with it, either. Not only could this be dangerous for kids or pets, but they can scatter the fiberglass around your home, making a mess that's tough to clean up. Have someone babysit the kids or watch them in a separate room while you work on the insulation. Put pets in a crate or lock them in the basement.

Vacuum the area when you're finished.

Don't unwrap the insulation until you get it into the attic. This will help reduce the amount that gets all over the carpet outside the attic. Either way, make sure you vacuum the area outside your attic entrance after you install the insulation. This way, if there was any fallout, you'll get rid of it before someone steps on it or touches it.

Unroll the insulation perpendicular to the other layer.

When adding the second layer of insulation, make sure you place it crosswise across the layer that's already in there. This way, it will be more effective at blocking the air that may seep between the pieces of insulation in the bottom layer.

Adding another layer of insulation to your attic is usually helpful, and it shouldn't take very long. Just unroll the insulation across your attic as you follow the tips above, and you'll be all set. If your attic is small or hard to access, consider hiring an insulation contractor like Georges Roofing to tackle this task for you.