Installation

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.

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.

Can multiple layers of Ultralight be installed?


Ultralight can not be layered because the thickness will double of amount of movement under the tile which means the floor will not meet the declared wear ratings.   Pro Tip: If you need more height,  use leveler to prepare the floor as needed followed by Ultralight.

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.

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 the 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?


Primers help encapsulate dust to improve bonding with the thinset you’d apply to lay the boards. But on brand new or clean subfloors this may not be necessary. When in doubt, consider a solvent-free floor primer like Ardex P51 or Mapei SM. If your subfloor is not level or has a lot of residues, such as glue remnants from an old vinyl floor recently removed, you may need to apply a thin coat of leveler to smoothen the subfloor in preparation for your project.

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.

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.

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