Even in summer months, adding insulation to your attic can keep your home more comfortable and save energy used by your cooling system. If your attic insulation is level with or below your floor joists (meaning you can easily see your joists), you should add more. If you can’t see any of the floor joists because the insulation is well above them, you likely have enough insulation.

Attic insulation should be evenly distributed with no low spots. Make sure the areas along the eaves are adequately covered.

 

Source: energy.gov