Insulation: Mass Save Provides Massachusetts Residents with a Blanket of Comfort

Thermal Blanket for your Home


No matter what time of year it is, insulation is important to keep your house as energy efficient as possible. On cold days, heat can leak out; when it’s hot, cooling can escape. With all the energy inside, proper insulation means you’ll have a more affordable energy bill—but so many homes aren’t properly insulated. Not only will our home energy audit increase your comfort, but it'll also decrease your spending. And most importantly, proper insulation helps reduce greenhouse gases. According to the Harvard School of Public Health, if all homes were properly insulated, there would be a CO2 reduction of over 293.5 billion pounds. So why not take the step in the right direction with NEEECO?

How Insulation Works

The three ways heat moves and how to stop it

Essentially, insulation slows down how heat flows from point A to point B, and can work by stopping heat escaping from somewhere warm when it’s cold, or by stopping heat from penetrating a cool place when it’s hot. Despite the situation, heat transfer always takes place via the same three methods.

Blankets of Fiberglass

Fiberglass blanket insulation is essentially flexible, white blankets of glass fibers that are bonded with a thermoset resin. They have great tensile strength and are noncorrosive, and can often be found in the framing between walls and ceilings. Fiberglass blankets are cost effective and can insulate large areas, meaning they’re a good choice for new constructions. With a thermal conductivity that's 800 times less than aluminum, they’re the optimal material for super-insulating your windows. They can also maintain your window’s structural integrity and are resistant to environmental damage. However, they’re not natural air sealers, so drafts can leak air through if there’s no proper seal.


Blown-in Cellulose

Cellulose does offer some advantages over fiberglass and can address other shortcomings, making it the primary insulation product at Boston Solar. Blown-in cellulose offers better insulation against heat transfer, is nonintrusive when installed on existing homes, and is a natural air sealer when densely packed in walls.

Spray Foam Insulation

Polyurethane spray foam is a commonly accepted application that insulates different areas, such as fridges or crawlspaces. Easy to apply and resistant to wear and tear from the environment, spray foam is a great form of insulation that works well in hard-to-reach spots. Closed-cell spray foam is denser and more commonly used. It is resistant to excessive moisture buildup, which means the chance of mold or bacterial growth forming is highly unlikely. Open-cell spray foam is less common, but expands when applied, meaning it’s great to use in nooks or crannies you can’t easily access. While not as dense as closed-cell foam, it is the cheaper of the two, providing good insulation yet no water resistance.

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