Acoustic Floor Underlayment HardFloor – Tile

Acoustic Floor Underlayment HardFloor is an acoustical ceramic tile floor underlayment that is installed under ceramic tile and natural stone flooring and offer impact sound reduction and crack suppression.

HardFloor Acoustic Underlayment for tile is a lightweight 5 mm thick underlayment system that has been specially designed for use under tile and stone. HardFloor offers high energy impact with low weight and will remain unchanged after repeated impact loads.

HardFloor is a Synthetic cork underlayment that will not rot, swell, absorb water and is anti microbial.

HardFloor has been tested and has the performance equal to 1/2″ natural cork at a much lower price.

HardFloor can be bonded to approved sub floors using T-440 bond coat adhesive or installation with our Peel & Stick version.

* Up to 25 times lighter than 1/4″ backer board ”
* Synthetic cork product” will not rot, support mold & mildew or absorb moisture
* Thin profile 3/16″ thick, 4′ x 4′ sheets Lightweight only 28 lbs per box,
* 25 sheets per box, 400 sf,
* Credible acoustical and crack suppression
* Optional Peel & Stick available Passes Robinson test to light commercial rating

HardFloor Acoustic Underlayment is used in areas where sound isolation and crack prevention are required. HardFloor is not a structural product and the sub floor must not exceed deflection of L/360 of span including live and dead loads. Cement board is not required if the structural requirements are met.

The HardFloor Underlayment is bonded to approved sub floors using a T-440 bond coat adhesive. Once the HardFloor acoustic floor underlayment has been adhered to the sub floor a Latex modified thin set is recommended.

Model Floor / Ceiling Assembly Description Floor Covering IIC Rating
HardFloor 5mm 6″ Concrete slab no ceiling below Ceramic Tile ∆IIC 20
HardFloor 5mm Wood frame construction 2 x 16″ – 24″ centers, 5/8″ T&G plywood w/ 1 1/2″ lightweight concrete topping-  batt insulation, RC-1 channel, 5/8″ GWB Ceramic Tile IIC 52
HardFloor 5mm Metal frame construction 8″ Dietrich TradeReady Floor Joist @ 24″ o.c.  – 9/16″ metal form w/ 1 9/16″ gypsum concrete, WAVE Suspended Drywall Ceiling Grid, 3-1/2″ Fiberglass Batt Insulation, 1 Layer 5/8″ Type C Gypsum Sheathing,  + 1 Layer 1/2″ Type X Gypsum Sheathing Porcelain Tile IIC 54
HardFloor 5mm 7.5″ concrete slab with no ceiling below Ceramic Tile FIIC 59