Choosing Spray Foam Insulation

Spray Foam Insulation in Greater Annapolis

Open-cell or closed-cell spray foam insulation in Maryland

A Spray Foam Installation in Severn

Our experts will help you choose the best spray foam insulation for your needs.

With energy costs on the rise, people are paying more for heating and cooling. Maintaining comfortable home temperatures demands electricity, gas, and oil to run HVAC equipment, including furnaces, boilers, heat pumps, and air conditioners.

Most homeowners understand that improving home insulation is a surefire way to cut HCAV costs — that's where spray foam comes in. Foam insulation contractors fill spaces between studs, joists, and rafters to effectively seal the home.

Contact us today for a free spray foam insulation estimate in Bethesda, Rockville, Gaithersburg, and nearby areas.

Can spray foam insulation improve home energy performance?

We help homeowners choose the best insulation for their homes. But what is better, closed-cell or open-cell foam insulation? Many people are confused about the differences between open-cell foam and closed-cell foam: 

More about open-cell foam insulation:

  • Lower R-value & higher permeability: Open-cell foam is made up of tiny bubbles that are interconnected. The bubbles hold air, which provides insulation value — typically between R-3.5 and R-4 per in.
  • Air sealing value: Open-cell foam expands to fill gaps and cracks. But instead of curing to a hard, smooth-surfaced mass, open-cell foam has a spongier feel.
  • Absorbs moisture: Open-cell foam will absorb moisture and lose R-value when wet, so it is not advisable to use open-cell foam in damp rooms. It can be sprayed between rafters or studs, but won't provide much insulation value in a confined space.
  • Pricey installation: Open-cell foam is usually less expensive to install than closed-cell foam.

More about closed-cell foam insulation:

  • Stronger airtight barrier: Closed-cell foam provides a moisture resistant barrier, a harder finish, and higher R-value
  • Adaptable application: Canned foam is a closed-cell foam that comes in "single-component" form. The closed-cell foam that is used on large-scale spray foam jobs is known as "two-component" foam or polyurethane foam.
  • Preferred insulation: Closed-cell insulation is often preferred for home insulation as it offers higher R-value — between R-6 and R-7.1 per in. The ability to block moisture while also providing air sealing and high insulation value is an advantage in many applications.

Be sure to check out our comparison between spray foam and rigid foam insulation. We also provide assistance in choosing the best spray foam insulation.

Start saving energy & money with a spray foam insulation

No matter the service, no matter the product, we at Dr. Energy Saver Central Maryland are the insulation and air sealing experts. We can assess your home and provide the perfect spray foam insulation that suits your home's needs.

During our home energy audit, we will evaluate your home's energy efficiency and comfort levels in order to create a prioritized list of recommended services and upgrades.

Call 1-833-483-5965 or contact us online to schedule a free estimate for spray foam insulation in Gaithersburg, Bethesda, Rockville, Pasadena, Highland, Glen Burnie, Severna Park, Severn, Laurel, and the surrounding areas.

Looking for a price? Get a no cost, no obligation free estimate.

our service area

We serve the following areas

Our Locations:

Dr. Energy Saver Central Maryland
889 Airport Park Road
Suite M
Glen Burnie, MD 21061
1-443-472-4032
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