Insulation is placed directly under the roof rafters to stop heat from the roof surface of entering the attic. Insulating the roof means your attic is not heating up and radiating the heat downwards, causing the rooms below to suffer. The same principle applies to winter. A cold attic means the places closest to it would be colder than all the others in the house. Insulating the roof means that the attic temperature is controlled and not too influenced by the outside temperature. Insulation is also a great way to prevent future damage to your roof. When the heat in your home rises, it warms your roof enough to melt the snow on your roof. When this happens, you end up with ice dams, moisture, and condensation which all can potentially trapped.
Since insulation helps to keep the home at room temperature, your AC’s and heaters do not have to work as much as they would need to otherwise. This automatically helps you save a lot of energy and in turn helps you save a significant amount on energy bills.
Naturally, by insulating your roofs, you get to save a lot in the long run
Another benefit of having your roof insulated is having an additional layer of protection. Depending on the type of insulating material that you choose, roof insulation will be able to protect your roof from the onslaught of the natural elements over years of exposure. This may not be an immediate benefit of roof insulation, but you will be able to see the benefits as your roofing gets old by the day. With an additional layer of protection, the roofing will hold strong much longer than one without.