Your attic space is one of the most important target areas for insulation. It is the most cost-effective places to install new insulation and will help your energy bills go down. There are a few different ways that attic insulation can be installed and with different materials.
The first decision you need to make is where in your attic you want the insulation. You can choose either to have installed in the rafters of the attic or spread on the attic floor. Having it installed on the *bottom side* of the roof does allow you to use the space in your attic for either storage or as additional living area. The plus to using the attic floor is that it is usually less expensive, since the installation is a lot easier.
If you decide that you want to apply insulation to the roof of your attic the next is deciding what type of insulation you want. Your options are:
- Fiberglass batt insulation. Fiberglass batts are often used in attic roof insulation. It is installed in between the joists the attic. It also allows for air to pass through it, which is great for air flow.
- Spray foam insulation. Spray foam insulation is a great option for your attic. It is applied onto the rafters of the roof, where it sticks and expands to fit onto the attic ceiling perfectly. Though this does make the installation process very easy, it can lock moisture into the attic, which can lead to your roof rotting, if not applied correctly.
- Rigid foam insulation. Rigid foam insulation is the most recommended option for attic insulation. It is installed directly onto the attic ceiling in between and on the rafters. It has a high R-value and allows for a ventilated space.