Eminence, Kentucky
1936 Ellis Rd
Eminence, KY 40019
(502) 220-0231

Why Spray Foam Insulation Tops Fiberglass Insulation July 17, 2019

Eminence, Henry
Why Spray Foam Insulation Tops Fiberglass Insulation, Eminence, Kentucky

Whether you live in a cold or hot climate — or somewhere in between — insulation is essential to lowering the flow of heat in or out of your home. When building a new home or making your current one more energy-efficient, carefully weigh your options, which will most likely come down to either fiberglass or spray foam insulation. This guide explains why more contractors today prefer the latter.

Fiberglass Insulation

Although fiberglass is an inexpensive insulation option, it’s not the smartest choice when you want a long-term solution. Moisture and leaks can wear down the material and cause it to develop mold. Also, while it does reduce heat transfer and airflow, the material is less dense than foam, making it less capable of stopping direct air exchange, such as leaks in the attic.

While there are several different styles of fiberglass to suit different applications — from batting to loose-fill — the material still struggles to cover difficult areas fully. For instance, when placed on odd-shaped walls with plenty of nooks and crannies, fiberglass is not as effective as foam when it comes to filling gaps and cracks.

spray foam insulationSpray Foam Insulation

When you want to reduce air leakage throughout a home, spray polyurethane foam (SPF) is the answer. It is made by mixing isocyanate and polyol resin to produce a liquid. This chemical is then sprayed onto the area, where it will expand to 30 to 60 times its original size and conform to wall cavities, holes, or concrete slabs. Once hardened, the material allows almost zero airflow and provides an R-value per inch of 6.5 — almost double the thermal resistance of fiberglass. In homes without insulation, this can reduce energy costs by up to 50%. Compared to other materials already installed, it can save up 30%.

Spray foam insulation will never lose its shape, unlike fiberglass and other conventional materials that are prone to sagging and settling. Also, as it is waterproof, foam will deter potential water damage and mold growth in attics, basements, and crawlspaces.


If your home or business could use a more effective insulating material, contact the professionals at Energy Shield Spray Foam in Eminence, KY. They provide spot and whole-building spray foam insulation services to Franklin, Shelby, Oldham, Woodford, Spencer, and Henry counties. Speak to one of their professional insulation contractors today about your new construction or remodeling project by calling (502) 220-0231. Visit their website to learn more about their services.

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