Spray foam and fiber glass are two of the most common insulations. Both of them have their own advantages and disadvantages. Following is the comparison between spray foam insulation and fiber glass insulation:
Lifespan – Spray foam insulation is more durable than fiberglass insulation. It will generally last much longer than its fiberglass counterpart.
Specialized Use & Purpose – Spray foam is a great material when we are looking to insulate roof, air ducts or pipes. For these applications it is better to opt for spray foam insulation.
Environmental Qualities - Spray foam insulation is lot more environmentally friendly as compared to fiberglass. When you install fiberglass, you will undoubtedly have particles of fiberglass floating in the air which pose health risk.
Fitting Around Small Spaces – Spray foam insulation is a great product to use when you need to insulate small areas and holes. It is lot more difficult to use fiberglass insulation to fill little cracks, holes and apertures.
Costs – Spray foam insulation is bit more expensive than fiberglass insulation. It is usually anywhere between 20 and 30% more expensive than fiberglass insulation.
R-value - Spray foam has much higher R-value than fiber glass so it is lot better insulator as compared to fiberglass
Energy Saving Efficiency – Spray foam being better insulator than fiberglass so it helps in saving more energy than finer glass insulation in fact it saves 20 – 40% more energy than Fiber glass insulation.