Warmup Insulation Boards – Ultralight

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Ultralight™ is a specialized composite board designed for floor heating applications. Manufactured as flat, flexible, sheets they are water and mold resistant.



Would you like to learn more ?

Do I need insulation?


Wondering if you need insulation for your upcoming floor heating project? Learn more in this post about our recommendation.

Are Warmup Insulation Boards Soundproof?


If you are installing the Warmup insulation boards you may be wondering if they are soundproof or not. Click here to learn more about this.

Learn about “R” Value of the Warmup Insulation Boards


The WIB boards will save you money by acting as a very efficient thermal barrier. Heats up times in our testing facility were cut down from 2.5 hrs. to just 25 minutes. With a 78% fast ramp-up time, your system will save you 71% in electrical usage.

How do you stick the insulation boards to the concrete slab ?


You can stick the insulation boards to the concrete slab using regular modified or pre-mixed thin set. We recommend a 1/4 x 1/4” trowel.

Do I need to prime my subfloor before installing Ultralight?


You can stick the insulation boards to the concrete slab using regular modified or pre-mixed thin set. We recommend a 1/4 x 1/4” trowel.

What kind of primer do I use with ultralight?


You can stick the insulation boards to the concrete slab using regular modified or pre-mixed thin set. We recommend a 1/4 x 1/4” trowel.

What kind of adhesive do I use with Ultralight?


You can stick the insulation boards to the concrete slab using regular modified or pre-mixed thin set. We recommend a 1/4 x 1/4” trowel.

Can you self-level over ultralight?


You can stick the insulation boards to the concrete slab using regular modified or pre-mixed thin set. We recommend a 1/4 x 1/4” trowel.

How does Ultralight work?


You can stick the insulation boards to the concrete slab using regular modified or pre-mixed thin set. We recommend a 1/4 x 1/4” trowel.

What is Ultralight made of?


You can stick the insulation boards to the concrete slab using regular modified or pre-mixed thin set. We recommend a 1/4 x 1/4” trowel.

How Big and How Heavy are Ultralight Boards?


You can stick the insulation boards to the concrete slab using regular modified or pre-mixed thin set. We recommend a 1/4 x 1/4” trowel.

Is ultralight waterproof and sound proof?


You can stick the insulation boards to the concrete slab using regular modified or pre-mixed thin set. We recommend a 1/4 x 1/4” trowel.

Installing insulation boards over a Wooden Subfloor


There is a specific way to install the insulation boards over a wooden sub-floor.  Click “Read More” to learn how.

Warmup Insulation Board Installation Video


See just how easy it is to install our floor heating insulation boards. Click here to watch.

Insulation Boards: Preparing for the Installation of Floor Heating


All surfaces should be thoroughly cleaned of all dirt and debris. When installing over an existing concrete base, it is important to remove all traces of existing finishes, contamination, etc. to allow for a clean surface.

Installing insulation boards over a Concrete Subfloor


When installing over cement, screws and washers are not necessary. You will first use a trowel to put down a modified mortar. Then you will stagger the boards and press them together.