A professional worker installing insulation
October 15, 2020

When it comes to home insulation in PA, there are three most commonly used materials that homeowners generally choose from – fiberglass, cellulose, and spray foam. In the following blog, we explain how these materials compare in terms of effectiveness, ease of installation, safety, and more.

Fiberglass Insulation

Let's start with fiberglass. 

Fiberglass insulation comes in different types. One is called batts/ batting or rolled out insulation. The other is known as blown-in fiberglass. This type of fiberglass is typically installed in new construction walls, floors, and attics. 

In fact, you can find fiberglass insulation in virtually all commercial buildings, including big-box retailers, insulation contractors, and even small hardware stores. Using fiberglass insulation to keep conditioned air indoors offers satisfactory results and is usually inexpensive. 

Cellulose Insulation

Cellulose insulation is mostly made from recycled paper products. It is usually chemically treated to prevent burning and avoid sustaining animal life. 

Our professional insulation installers in PA recommend doing some research into the type of cellulose material you are choosing. 

Cellulose insulation is typically blown into walls or attics. It's relatively denser than fiberglass insulation, and therefore offers better air sealing aspects in comparison. 

The difference between blowing cellulose into an attic and blowing fiberglass into an attic is that when blowing the cellulose, it can get quite dusty than when installing blown-in fiberglass insulation. 

On the other hand, because it is a more dense material, it takes comparatively lesser in-depth to reach the desired R-value with cellulose than with fiberglass. 

Spray Foam Insulation

Spray foam insulation is the most expensive type of insulation. It has the highest cost per inch installed. However, the high cost is usually offset because it also has the highest R-value per inch when installed. 

Spray foam comes in two varieties: open cell and closed cell. 

Before installing spray foam insulation, you should read about its installation process. This is because there are chemicals involved. You must carefully follow the installer's directions about leaving the house, maintaining a safe distance from the work area, etc. 

Spray foam insulation is hands down the best variety for certain installations. We prefer using it for basement rim joists, when doing energy upgrades on existing homes, and for insulating crawl space ceilings where the tight area makes it extremely hard to install fiberglass batting. In rooms or houses that are inherently damp, making fiberglass or cellulose insulation prone to absorbing moisture, closed cell spray foam would be the best choice if you can afford it.

If you need help in installing or deciding which type of insulation is best suited for your house, our expert contractors will be happy to help. Contact us here.

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  • Thank you Dutch and Christian from Green Stone Energy LLC for a job well done. Our family will be feeling much warmer this winter. No more heating the outside.

    Lisa, Alex & Thorsten, Audubon, PA,
  • A really good weatherization Company. Would highly recommend.

    Nancy S.,
  • The work that Green Stone Energy completed at my home was awesome! The crew arrived as scheduled and completed their work in the most timely manner. They were very neat and made sure to clean up after themselves. I couldn't believe that the owner of the company even came to check on the progress... Read More

    Nancy M., West Chester, PA,
  • They arrived when they said they would. spread drop cloths where they would be walking. The owner stopped by to check on the progress. All went well. It took about 8 hours from start to finish. My initial observations are showing a positive improvement in the houses ability to hold temperature... Read More

    John S., Norristown,
  • We contacted Green Stone Energy after a PECO energy audit showed a lack of insulation in our attic. Everyone was very professional, friendly, prompt and did a quality job for us.

    Monica H., West Chester,
  • Estimate was done after a complete examination of my concerns.

    Susan M.,
  • We called in Green Stone Energy after a Peco audit recommendation and had two quotes. One was a bit more involved but also 80% more $$. They answered my many questions and upon recognizing at the start of the project they had forgot to include two small areas in their quote, they included the... Read More

    Jan L., ,Newtown Square
  • Very satisfied with all the work. The installers were very professional, efficient, polite, on time,and kept everything covered and clean.

    Mary K.,
  • I can't thank Dutch Schwertner and his team enough for their thorough evaluation and installation of energy efficiency at my Salon. Andrew and Ryan arrived as scheduled with a smile. Their preparation and communication skills really impressed me . I was so pleased with all the care they took to... Read More

    Susan S.,
  • Extremely pleased with everything we received from Green Stone Energy. Everything, from a prompt and fair proposal to timely service appointment. Did not try to oversell us and even recommended not having certain things done as it would not improve the comfort of our home. The work was done... Read More

    Gary M.,
  • Everything went perfectly. Wonderful staff to work with at all levels. Highest level of professionalism and workmanship. The night that the work was done, warm air was streaming into our third floor bathroom, for the first time ever. We were amazed at how much energy we must have been wasting... Read More

    April & John S.,
  • Mark came and conducted a thorough inspection. A well detailed estimate was provided. On the first date of the 2-day installation Mark came on site to review the intended job. Both installers were pleasant and more than competent. They cleaned up well each day. They installed ceiling and... Read More

    Marilyn C.,
  • Our experience with Green Stone Energy was outstanding. The first visit involved identifying the energy-saving opportunities that our home presented. We discussed those opportunities and I learned why and how the required work would be done. The second visit involved doing the actual work, which... Read More

    Angelo A. ,
  • An estimator came over to review the findings of a PECO energy audit. Dutch went over the recommendations with me, and got me a proposal a few days later. The team doing the work showed up on time and were very professional. They placed drop cloths before working inside the house and vacuumed... Read More

    Michael K.,
  • "We had an initial call with Green Stone (GS) and agreed to get an estimate. We did the same with several other contractors. The GS representative "Dutch" came to our home and was very knowledgeable of the PECO results and provided a detailed list of energy saving measures we could possibly... Read More

    Mike K. ,
  • I wanted to thank you for your help with my insulation job. In particular, I wanted to give a shout out to Greg who was on every aspect of the job. He was detail oriented, knowledgeable, conscientious, and a pleasure to work with.

    Anna Massi,