If you’re interested in learning about different methods of insulating homes or other structures, then siding insulation is a phrase you definitely need to be familiar with. It can completely change the way you look at insulation; not only does it provide energy efficiency, but it can even improve the performance of the siding and the whole wall system!

Let’s start by identifying the basic problem that siding insulation solves. When most people think of home insulation, they picture pink, fluffy fiberglass insulation that goes in between the wall studs and other framing members. This type of insulation is great for adding R-value to the wall and making your home more energy-efficient, but there is one big flaw with this method of insulating a home; by putting batt insulation between the studs, you do not insulate over top of the studs themselves. This leaves a major “thermal bridge” for energy to leak across. In the winter, heat from the warm inside of the home escapes to the cooler outdoors; in the summer, warm air from the outside comes across the studs, warming the cooler interior of your home.

So how do you break this thermal bridge and stop the energy loss? You guessed it… siding insulation. Siding insulation is rigid foam insulation that is contoured to fit the shape of the siding panel it is paired with. It can be installed behind the siding on the job site or laminated to some siding panels during the manufacturing process. Because the siding insulation is installed on the outside of the home, it completely covers up the wall studs and other framing members, breaking the thermal bridgeClick here to watch a short video clip about how siding insulation breaks the thermal bridge.

Now that you know what siding insulation is, you may have asked yourself one of the following questions. Although the answer to both could be “yes”, here’s why siding insulation is the better choice:

Insulating from the inside out can be an expensive & messy process

1.) Can I insulate over the studs from the inside out instead?

Yes, you can insulate the studs from the outside in. However, to get to the studs in a remodeling situation, you may have to remove drywall, take down cabinets, pull back carpet and more, then replace them after the insulation is installed! This can be a long, messy process that can also cause you to lose square footage on the interior of the home. By using siding insulation on the outside, you can beautify the home with new siding while increasing its energy efficiency at the same time.


2.)   
If I decide to insulate from the outside in, can I use something other than siding insulation?

If you decide to insulate on the exterior, there are other flat foam product options to insulate under new siding. However, by using contoured siding insulation you reap extra benefits. Depending on the type of siding that siding insulation is paired with, benefits can include:

  • Increased impact resistance (more)
  • Enhanced moisture management, protecting your home from mold (more)
  • Protects against pests, such as termites (more)
  • Perfectly installed panels every time for an enhanced appearance, and more!

To learn about the benefits of adding siding insulation to a specific siding type, click here:
VINYL SIDINGFIBER CEMENT SIDINGCOMPOSITE WOODSTEELOTHER

Lauren Marburger

About Lauren Marburger

My name is Lauren, and I am the Marketing Manager at Progressive Foam, working towards the goal of getting foam on every home! I graduated from Baldwin-Wallace College with a degree in Public Relations and Marketing, and have been with Progressive Foam since 2008. In my spare time I enjoy home improvements, traveling, and the outdoors.
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3 Responses to What is Siding Insulation?

  1. Pingback: Exterior Siding Possibilities For Steel Structures | Media Support Services

  2. guy boucher says:

    What R value can I expect with the moulded foam under the fiber cement siding or prebaked finish Masonite. I have 1/2 inch sheets under my current siding [ Masonite ] which I assume would be striped off. Would the 1/2 inch plywood have to come off?

    • admin admin says:

      Hi Guy- Our siding insulation products that are specifically contoured for fiber cement range in r-value from 3.0 to 3.9, depending on how thick of a product you want to use. As far as installing the product, you can view our installation instructions here: http://www.progressivefoam.com/uploads/307151340994309.pdf. We recommend that you adhere to the siding manufacturer’s instructions when determining which wall components must be stripped prior to installation of new siding.

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