By insulating under your basement slab with a layer of continuous insulation, you effectively increase the comfort and energy efficiency of your space. Plasti-Fab’s code-listed EPS insulation provides R-values to meet code and thermal performance as well as compressive strengths to meet your project goals.

With the dependable distribution network of Plasti-Fab EPS insulation products and technical expertise readily available, insulating under your slab is a simple, cost-effective solution that provides long term benefits. The lightweight nature of EPS makes it easy to cut and install. Check out the Installation Instructions tab for a step by step guide to installing Plasti-Fab’s EPS insulation under your slab.

Experience floors that won’t crack or heave from freezing or thawing due to the compressive strength of our under slab insulation. Save energy, save money, and begin enjoying a comfortable, energy efficient space with and insulated slab.

Durofoam Insulating Under a Basement Slab

1. Follow the Building Code

Be sure to follow the building code requirements applicable in your region.

Durofoam Insulating Above a Basement Slab

2. Moisture Barrier

Place & level a layer of granular fill. Place a 6-mil polyethylene moisture barrier over the granular fill.

Durofoam Insulating Under a Basement Slab

3. Place Insulation

When placing the insulation ensure that the joints are tightly butted together. (HINT: Ensure all openings are planned in advance.)

Durofoam Insulating Above a Basement Slab

4. Place the Concrete

Place the concrete using normal construction methods and equipment.

Next Steps

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