Under-Slab Insulation for Your Home
Under-slab insulation is essential to eliminate cold floors and prevent rising moisture. This technique involves installing insulation under the concrete slab to minimize heat loss and ensure your comfort.
The under-slab insulation technique is used for your home's bottom floor. It involves installing polystyrene or polyurethane insulation under the concrete slab. Its main objective is to minimize heat loss and prevent moisture infiltration from the ground.
Why Insulate Under Your Slab?
Warm Floors
Eliminate the cold sensation when touching the concrete floor.
Moisture Barrier
Block rising moisture from the ground under your home.
Energy Savings
Reduce heat loss through your basement floor.
Radiant Floor
Optimize the efficiency of your radiant floor heating system.
Enhanced Comfort
Enjoy a pleasant basement where it feels good to walk barefoot.
Structural Protection
Protect your slab against freeze-thaw cycles.
Under-Slab Insulation Methods
Under-Slab Spray Foam
Spray foam can be applied directly on prepared ground before pouring the concrete slab. This method creates a continuous thermal and vapor barrier without joints or interruptions.
This solution is particularly effective for new construction or major renovations requiring replacement of the existing slab.
- Continuous application
- Integrated vapor barrier
- High R-value
- New construction
Rigid Insulation Panels
Extruded polystyrene (XPS) or polyisocyanurate panels are installed on compacted ground before pouring concrete. These panels offer high compressive strength and moisture resistance.
This method is ideal for projects where available thickness is limited, as rigid panels offer excellent R-value per inch of thickness.
- Compressive strength
- Precise installation
- Reduced thickness
- Radiant floor compatible
Where to Install Under-Slab Insulation?
Residential Basement
Basement concrete slab for a comfortable living space.
Attached Garage
Garage floor insulation to reduce heat loss.
Radiant Floor
Under radiant heating systems to maximize efficiency.
New Construction
Before slab pouring for new homes.
Our Under-Slab Insulation Projects
Ready to insulate under your slab?
Our residential insulation experts are available to assess your needs and propose the best solution.