Education Center

Education Center

Education Center - Delmarva Insulation

There’s a lot to know about energy efficiency. We want you to have accurate information so you can make the best choices for your home and family.

Our Education Center has great information to answer your questions and help you understand what insulating and air sealing can do for your home. Here you’ll find:

  • Videos detailing our work and things you need to know about insulation, air sealing, building science and more.
  • Rebates and Incentives
  • FAQs



Rebates and Incentives are many rebates and incentives available to offset your investment in energy upgrades. Click here to visit DSIRE and search for rebates and incentives by zip code.

Need help sorting through information about home energy efficiency? We’re experts and here to help. Contact us today.



In the meantime, here are some Frequently Asked Questions you may find helpful:

Can I add new insulation on top of old insulation?
Insulation can be added on top of old insulation. The only exception is if the insulation is wet. Wet insulation can lead to mold, mildew or even rotting of your ceiling roof rafters. If it is wet or appears it has previously been wet, you should look for the cause and repair it to prevent a recurrence. If the insulation needs to be removed, we can do this for you.

Why do I need to seal my attic if I’m adding insulation?
Fibrous insulations like fiberglass are not air barriers. They do not seal air leaks and can allow air to move through them. This allows air to escape, causing your heating or cooling system to re-condition more air and an increase in energy use. Air sealing stops the escape of air from the home.

Why is spray foam insulation more expensive than fiberglass insulation?
While both are insulations, their physical characteristics are entirely different. Fiberglass is not an air barrier and lets energy escape. Spray foam fills every space in the framing and seals the house while insulating it. The fact that spray foam is worth it resonates in our testimonial letters.

Is spray foam insulation better than fiberglass insulation?
Spray foam insulation is a two-in-one product. Not only does it insulate, it also seals air leaks. Spray foam is applied in a liquid form, expanding to fill crevices and penetrations that can leak conditioned air. This creates a continuous thermal envelope.  Fiberglass insulation does not inherently seal air leaks. To seal air leaks with fiberglass insulation, an additional air sealing step must be performed (flash and batt is a great option).

Can spray foam be sprayed in an existing home?
Yes, with certain conditions. Every home is different. We are happy to provide you with detailed options as to where and how spray foam can be used to improve your home’s thermal performance and comfort level.

What is the difference between open cell spray foam and closed cell spray foam?
Open cell spray foam has a density of 0.5 pounds per cubic foot. It is made up of cells of foam that are not completely closed. The cells are broken and air fills all of the “open” space inside the material. Open cell spray foam insulation has an R-value of 3.4 to 4.5 per inch.

Closed cell spray foam has a density of 2.0 pounds per cubic foot. The cells are closed and packed tightly together. They are filled with gas that helps the foam rise and expand. Closed cell foam is very dense, and therefore has greater insulating properties. Closed cell spray foam insulation has an R-value of 5.4 to 7.2 per inch.