Research
Decorative Concrete

Applications

Staining Concrete

Stamped Concrete

Concrete Overlays

Concrete Resurfacing

Concrete Polishing

Concrete Dyes

Colored Concrete

Indoor Concrete

Concrete Floors

Garage Floor Coatings

Concrete Countertops

Fireplaces, Sinks & Furniture

Basement Floors

Radiant Floor Heating

Outdoor Concrete

Concrete Patios

Concrete Driveways

Concrete Pool Decks

Outdoor Kitchens & Counters

Outdoor Fireplace

Concrete Walkways

Concrete Pavers

Concrete Walls

Repair & Maintenance

Foundation Repair

Concrete Crack Repair

Basement Wall Repair

Building with Concrete

Concrete Homes

Concrete Basements

Decorative Concrete

Importance of Drainage

Good drainage is important with any foundation and FPSF is no exception. Insulation performs better in drier soil conditions.

Ensure that ground insulation is adequately protected from excessive moisture through sound drainage practices, such as sloping the grade away from the building. Insulation should always be placed above the level of the ground water table. A layer of gravel, sand, or similar material is recommended for improved drainage as well as to provide a smooth surface for placement of any horizontal wing insulation. A minimum 6-inch drain layer is required for unheated FPSF designs. Beyond the 12-inch minimum foundation depth required by building codes, the additional foundation depth required by an FPSF design may be made up of compacted, non-frost susceptible fill material such as gravel, sand, or crushed rock. Additionally, adding free-draining backfill helps to minimize or eliminate frost heave potential

Return to Frost-Protected Shallow Foundations