Insulated
Subfloors
Enjoy year-round comfort in your home even in your basement!
As seen at
EvoThermo insulated subfloors consist of OSB panels coated and laminated with expanded polystyrene (EPS) insulation. This innovative design prevents moisture and cold from seeping through the concrete slab below, keeping your floors comfortable and dry.
EvoThermo products vs. standard subfloors
| Type |  | Standard subfloor |
|---|---|---|
| Insulation | Insulation factor R3 | Insulation R0 |
| Suitable for hardwood | Yes | No |
| Suitable for ceramic | Yes | No |
| Vapour barrier | Yes | No |
| Antimicrobial | Yes | No |
| Absorbs sound | Yes | No |
| Quality | Superior | Standard |
| Type | Isolation |
|---|---|
| Evothermo |  Insulation factor R3 |
| Standard subfloor | Insulation R0 |
| Type | Suitable for hardwood |
|---|---|
| Evothermo | Yes |
| Standard subfloor | No |
| Type | Suitable for ceramic |
|---|---|
| Evothermo | Yes |
| Standard subfloor | No |
| Type | Vapour barrier |
|---|---|
| Evothermo | Yes |
| Standard subfloor | No |
| Type | Antimicrobial |
|---|---|
| Evothermo | Yes |
| Standard subfloor | No |
| Type | Absorbs sound |
|---|---|
| Evothermo | Yes |
| Standard subfloor | No |
| Type | Quality |
|---|---|
| Evothermo | Superior |
| Standard subfloor | Standard |
Benefits of Our Innovative Design
Grid or Grooved Surface
Allows the concrete to breathe and offers the option of a fixed or floating installation.
ThermoSmart – grid
InsulfloorBoard – grooved
Expanded Polystyrene
Provides superior insulating value for a level of comfort that non-insulated products cannot offer—and with no off-gassing.
iLock Joint
Unique double tongue & groove system ensures an airtight seal, preventing moisture from damaging or warping the floor above.
Flex-Groove
Two grooves give the subfloor sufficient flexibility to adapt to uneven concrete slabs.
Energy Efficiency
Enjoy drier, more comfortable basements year-round without the high energy bills. EvoThermo insulated subfloors offer R3 insulation and prevent thermal bridging across the entire floor. Less moisture and cold transferred from the concrete which means warmer, happier feet!
Built to Last
EvoThermo subfloor panels are insulated with Type 2 expanded polystyrene to ensure your basement stays dry and comfortable all year long. Key benefits include:
Waterproof & Rot-Proof: Designed to withstand moisture without deteriorating.
Compression Resistant: Panels can withstand heavy furniture and loads of 15 lbs/in² (2200 lbs/ft²).
Free of harmful chemicals like CFCs or HCFCs: Your family won’t be exposed to toxic fumes or off-gassing.
Airtight: Double tongue & groove system prevents cold air from seeping through the joints.
Keeps Your Basement Dry: Drainage grooves in the polystyrene insulation direct any water that might seep in from the foundation walls toward the floor drain.
Easy Installation
EvoThermo insulated subfloor panels are versatile as they can be installed in various ways.
Be sure to check compatibility with your flooring retailer before installation.
Fixed Installation
Simply glue the EvoThermo subfloor to the concrete with LePage PL Premium adhesive. Then, install a layer of plywood on top, securing it with glue and screws to ensure a rigid surface for your ceramic or hardwood floor.
Floating Installation
Install the EvoThermo subfloor and glue at all joints. You can even varnish the subfloor, allowing it to double as your basement flooring.
Insulated Subfloor
ThermoSmart
25% faster to install than other types of subfloors, with a lot fewer joints.
Grid Surface
Dimensions
15.5″ x 47.5″ x 1″
Surface area
5.13 ft2 per panel
Insulating subfloor products
InsulfloorBoard
25% faster to install than other types of subfloors, with a lot fewer joints.
Grooved Surface
Dimensions
15.5″ x 47.5″ x 1″
Surface area
5.13 ft2 per panel
