Attic insulation

Attic insulation is the process of installing insulation material in the attic space of a building to reduce the transfer of heat between the attic and the rest of the building. This can help keep the building warm in the winter and cool in the summer, improve energy efficiency, and reduce heating and cooling costs.

There are several different types of insulation that can be used in attic insulation, including:

  1. Fiberglass batts: These are pre-cut batts of fiberglass insulation that can be installed between the attic joists.

  2. Blown-in cellulose: This is loose-fill insulation that can be blown into the attic space using a special machine.

  3. Spray foam: This is a type of insulation that is sprayed onto the attic surfaces and expands to fill gaps and crevices.


Here are the general steps involved in attic insulation:

  1. Inspection: The first step in the attic insulation process is to inspect the attic space to determine the existing insulation level and to identify any gaps, holes, or air leaks that need to be sealed.

  2. Air sealing: Next, any gaps, holes, or air leaks in the attic space are sealed using materials such as spray foam, caulk, or weather-stripping.

  3. Ventilation: Adequate ventilation is important in the attic space to prevent moisture buildup and mold growth. Any existing vents should be inspected and any new vents needed should be installed.

  4. Insulation installation: The chosen insulation material is then installed in the attic space. The method of installation depends on the type of insulation being used.

  5. Cleanup: Once the insulation is installed, any excess materials are removed and the attic space is cleaned up.


Attic insulation can be a complex process, and it’s important to hire a professional to ensure that the insulation is installed correctly and that any potential issues are addressed.