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Insulating under a Basement Floor
Residential Solutions - Insulating under a Basement Floor

Energy Tip

Continuous insulation under your slab eliminates thermal bridging,
increasing your total effective RSI/R-value. This reduces energy costs and
increases your energy savings.

Product Selections for this application:
PlastiSpan HD DuroFoam PlastiSpan 30



Download the printable How-To
instructions

Download Basement Floor
brochure


Read the Blog
Insulating Below A Basement Floor

Review the Project Profile
DAROTopp Floor Systems

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Follow these simple How-to steps to install your PlastiSpan HD insulation for an insulated basement
floor.

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


3. Place PlastiSpan HD Insulation. When placing the insulation ensure that the joints are tightly butted together. (HINT: Ensure all openings are planned in advance.)
2. Moisture Barrier. Place & level a layer of granular fill. Place a 6-mil polyethylene moisture barrier over the granular fill.
4. Place the Concrete. Place the concrete using normal construction methods and equipment.