Insulated Vinyl Siding

Insulated vinyl siding will save you money year around.  Year after year. Why? 

The additional foam insulation on the vinyl siding adds "R" value to the walls of your house and makes it more energy efficient. Insulated siding cuts your energy costs both in the winter and in the summer. Keeps the cool air in the house in summer and warm air in the house in the winter. Thus, saving you on energy costs.

How it Works

Insulated Vinyl Siding
Thermal Bridging

Adding insulated vinyl siding fights 'thermal bridging' which is a frequent problem with most houses.  Houses made with wood framing allow heat to go through the wooden studs.

Twenty-five percent of a home is made of wood.  That's a lot of heat, ie: energy costs, leaking out of your house day and night. If 25% of the house's walls are wood that means one whole side of your house has no insulation.

Houses are made of wood
Walls before insulated vinyl siding applied yellow color is heat loss through the walls

Thermal Picture showing heat loss on a home with little or no insulation.  Light color is heat escaping through walls.  Tremendous energy loss through the walls.  

Walls after insulated vinyl siding

Thermal picture showing how insulated siding cuts back the heat loss escaping through walls.  Note how the light color around the windows shows how much energy is loss through windows that are not double pane.   

thermo loss in houses

What is Insulated Vinyl Siding

What is insulated vinyl siding anyway?

Insulated vinyl siding is growing in popularity today because more and more people are concerned about saving money on their energy costs.

Since installing vinyl siding on older homes is also on the rise, it only makes sense to incorporate the two together. If you have an older home and want to freshen it up, increase the value of the home, installing new vinyl siding is the answer.

It can be installed over most homes, whether they are brick, block, stucco, or wood.  If your house already has vinyl siding, but it is older version applying new vinyl siding is well worth the investment.

Now why should we consider insulated vinyl siding?  One because it will save you money on your energy costs for decades to come. Everyone loves to save money. Two, it looks so good. Insulated vinyl siding is more rigid than non-insulated vinyl siding therefore, it has a nicer, smoother look than regular siding. 

Insulated vinyl siding is sometimes called ‘foam backed’ vinyl siding. The foam is called ‘EPS’ or expanded polystyrene siding.

The foam backing (EPS) is permanently adhered to the back side of the vinyl panels during the manufacturing. So, you do not have to add it on application, it comes ready to install.

Home improvement contractors love it.


What are the Benefits of Insulated Vinyl Siding?

So, what are the Benefits of Insulated Vinyl Siding? 

Number One: Energy Savings.

Insulated Vinyl Siding helps reduce heating and cooling costs by wrapping your home in a continuous blanket that will keep the heat inside in the winter and keep the chilly air inside in the summertime. 

Even if your house has the pink batt insulation in the walls between the studs, installing the newer insulated vinyl siding will help save on energy costs by cutting down on the heat bypass in the wall cavity that transfers through the studs. This is called ‘thermal blocking’.


Think of it this way, nearly 25% of a home’s walls are made of wooden studs that are not insulated. So, about ¼ of your home’s walls are not insulated, that is like have one whole wall without any insulation. That is where the cold air come in the winter and that is there the scorching summer heat comes in the summer

To Insulate or Not to Insulate That is the Question

Since adding insulation increases the 'R' value of your exterior walls thus saving money on energy bills, the only reason you would not use insulated siding would be the cost associated with it. 

If it fits within your budget, then you should use it.  Always ask your local contractor for suggestions on which insulated siding is best for your house and your budget.

Your contractor will be glad to give you options and prices.  

Standard clapboard vinyl siding.  No foam backing.

Standard Vinyl Siding

Insulated Vinyl Siding   With foam backing

Insulated Vinyl Siding note foam on back side

Siding with factory applied foam insulation. 

Note the insulation attached to the back of the insulated siding.

This increases the 'R' value of the siding and your walls.

It also dampens noise and makes the siding more rigid. 

Insulated siding is siding that has factory installed insulation attached to it by the manufacturer while it is being made.

It cost a little more than standard vinyl, sometimes as much as 20% -25%+ more.  

But it keeps on saving money during cold harsh winters and steamy hot summers year after year.

Most contractors agree it is well worth the extra cost because it saves on energy costs. 

Comparing Insulated Vinyl Siding vs Non-Insulated Siding

Insulated Siding Benefits: 

  • Saves on energy costs  
  • Is a good noise barrier 
  • It is stronger than standard siding 
  • Does not warp or have waves like standard siding  

Adding the extra insulation can help to reduce your homes' energy costs in all climates.

Another great advantage of having insulation added to the siding is that it acts as a noise barrier. It greatly dampens outside noise like traffic, noisy kids, etc.

More Information on Insulated Vinyl Siding

The Vinyl Siding Institute has a lot of useful information on insulated vinyl sidings and how they can save you more money.

Click here to go to Vinyl Siding Institute Insulated Siding page.   

Compare 'R' Values of Different Types of Siding 

'R' Values of the most popular home sidings: 

        Siding Type                        'R' Values      *(higher the number the better)

  • Stone                                   .01 
  • Stucco                                 .10 
  • Brick                                   .11
  • Fiber Cement                      .59
  • Regular Vinyl Siding          .62
  • Wood                                   .81
  • Insulated Vinyl Siding     2.0 - 3.5   most energy saving!

As you can see from the numbers above, insulated siding is a great way to add additional R value to your existing walls.

Good Idea

If it is in your budget, you should consider upgrading to a high grade of insulated siding.  It may cost a bit more up front but will return the extra cost by saving you money on heating and cooling year after year.  Also, insulated siding is more rigid and looks better on the house than standard sidings.  

If your house is old and has some imperfections on the outer walls, insulated siding is the perfect product for you.

We recommend using good quality insulated siding.  Ask your contractor to show some distinctive styles and types. 

Harsh Winds

Use Insulated Siding for Harsh Weather Zones

Great for Harsh Weather

The added strength and thermal benefit of rigid foam insulation is like wrapping your family in a cozy blanket. Inside you will enjoy a quieter, more comfortable home. Outside you will appreciate the authentic look of natural wood, enhanced by distinctive colors and finishing touches. 

Some sidings are wind tested to hurricane force winds.   

Who Sells Insulated Vinyl Siding?

Siding Contractors and Home Owners Share your Pictures and Stories

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CertainTeed Vinyl Siding

CertainTeed vinyl siding both insulated and non-insulated versions are some of the most popular siding styles around. They come in many diverse colors, textures, styles, thicknesses both in insulated form and non-insulated.

If you live where the summer rains are harsh, winds are strong then Cedar Boards siding may be the right product for you.

CertainTeed Cedar Boards

Note here how the homeowner has used Cedar Board siding with natural stone. A great look. Very cozy and warm look. And strong enough to withstand very harsh winter weather. 

See more information on CertainTeed Vinyl Siding both insulated and non-insulated 

Click Here CertainTeed Vinyl Siding

Alside Insulated Sidings

Alside insulated siding are another major vinyl siding manufacturer providing many distinctive styles, textures, thicknesses, and colors.  And prices for every budget.

Insulated Dutch Lap
Insulated Standard Lap

Alside Insulated Sidings

   To see more types and styles of insulated sidings click here.  Alside Insulated Siding  

Norandex Insulated Vinyl Siding

Norandex Insulated Siding is one of the more popular vinyl siding manufacturers around.

Norandex is one of the leading siding manufacturers and available through local contractors in much of the country.  

To see more of  Norandex's Insulated Sidings ...Click here.  

Mastic Siding

Another large vinyl siding manufacturing company is Matic Siding. Mastic is a well-known vinyl siding manufacturer that produces many different home siding options including thier 'Structure Home Insulation System.

They have many styles, textures, colors, and both insulated and non-insulated products.

To see more information on the Mastic Siding line  Please click here   Mastic Siding.