What is Insulation

What is Insulation & How Does it Work?

You’ve undoubtedly heard of insulation and know (for the most part) what it does, but do you know exactly how it works? If you don’t, you’re not alone – the majority of homeowners don’t really know the specifics about insulation, just enough to know their home should be insulated! If you’re looking for basic insulation information and want to know more about how it works, you’ve come to the right place.

What is Insulation

In a few words, insulation is a material that stops the transfer of heat. Insulation materials vary – there is:

  • Fiberglass insulation – Usually soft and fluffy, fiberglass insulation is, as its name suggests, made of tiny fibers of glass. It looks a little bit like cotton candy – just don’t eat it!
  • Cellulose insulation – One of the most environmentally friendly types of insulation, cellulose is made of tiny bits of newspaper and recycled material.
  • Spray foam insulation – Spray foam insulation is made of resin and chemicals like polyurethane and expands into a thick foam when applied.
  • Radiant barrier insulation – Also known as foil insulation or reflective insulation, a radiant barrier consists of highly reflective material, namely aluminum foil.

Insulation should be installed in your attic, any crawl spaces your home has, the spaces and gaps behind your walls, and anywhere else where heat can leak into or escape out of your home. This prevents heat from entering your cooler home in the summer and leaving your warmer home in the winter.

How Does Insulation Work?

Different types of insulation work differently. Fiberglass insulation, for example, has lots of little air gaps between strands that trap heat and prevent it from escaping. Radiant barrier insulation reflects heat energy, which keeps your home significantly cooler and more comfortable. This results in a more comfortable home interior and much lower energy bills! How well a type of insulation stops heat transfer is measured in R-value, which is a term that refers to the insulation’s resistance to heat flow. The higher the R-value, the more effective the type of insulation is at stopping heat transfer. This doesn’t necessarily mean you should simply install the type of insulation with the highest R-value. The type you install depends on a number of different things, including:

  • Where you live
  • How old your home is
  • The type of HVAC system yo have
  • And more

If you don’t know which type of insulation you need, don’t worry – that’s where insulation companies come in handy! Whether you want to learn more about insulation, or you need to re-insulate your home and are looking for contractors, contact Eastern Insulation and Contractor Services Today!

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