How Do I know Where to Insulate?

Whether you’re building a new home or retrofitting your existing home with insulation, you’ll be talking to an insulation contractor about where to insulate. Nonetheless, it helps to know a little bit about where to insulate in your home.

On a general level, insulation should be installed everywhere:

  • Walls
  • Attic
  • Basement
  • Crawl spaces

Older homes in particular may not be sufficiently insulated and need more insulation.

Wall Insulation

You should install insulation in the walls of your home, as they are one of the biggest sources of heat loss. It may also be recommended to insulate ductwork and around pipes and wiring.

Types of insulation typically used:

Attic Insulation

In the attic, the floors should be insulated, as should knee walls (vertical walls with attic space behind them which can leak easily and can really compromise the energy efficiency of your home). If you live in a warm climate, it’s also cost-effective to combine thermal insulation with radiant barrier right underneath the roof. This helps your home reflect, rather than absorb, heat from the sun.

Types of insulation typically installed:

  • Radiant barrier (in warmer climates)
  • Fiberglass
  • Cellulose

Basement Insulation

The basement is a good area to insulate—a properly insulated basement can save you hundreds of dollars each year and make your home more comfortable! Insulating the walls is important, as this maximizes heating and cooling savings. In some cases, it’s also good to insulate the basement ceiling.

Types of insulation typically installed:

  • Cellulose
  • Fiberglass
  • Spray foam

Crawl Space Insulation

As a big source of heat loss in many homes, crawl spaces are good places to insulate. Crawl space insulation helps reduce air leakage and moisture problems and keeps your home a lot more comfortable. Unventilated crawl space walls should be insulated. For ventilated crawl spaces, focus on the subflooring and the floor joists.

Types of insulation typically installed:

  • Cellulose
  • Fiberglass
  • Spray foam

You may not necessarily need to insulate all of these areas—it depends. An insulation company will be able to tell you where you need to insulate, as well as the type and amount of insulation you need to help you save money and live more comfortably.

Contact MIG Building Systems to learn more!