Frost Cushion
Compressible EPS Void Form for Grade Beams and Foundations
Frost Cushion is a closed-cell EPS void form used under grade beams and concrete elements to help absorb frost heave and soil swell, protecting foundations, slabs, and buildings from damage.
- Supports Placement Loads
- Built for Frost and Soil Swell
- Deforms Under Subgrade Uplift
- Freeze-Thaw Resistant
What is Frost Cushion?
Frost Cushion is a compressible EPS void form used beneath grade beams and concrete elements where frost uplift or clay soil swell may create damaging upward pressure. Its closed-cell structure resists moisture absorption and soil intrusion, while its engineered leg geometry allows it to deform and collapse more easily under subgrade uplift than solid void form products.
Frost Cushion Applications
- Grade Beams
- Concrete Foundations
- Light Wood Frame & Metal Structures
- Frost Heave & Clay Swell Projects
Fresh Concrete Support
Up to 39″ (1 meter)
Uplift Force at 50% Compression
Less than 4.4 psi (30 kPa)
Available Thicknesses
4″ and 6″ (100mm and 150mm)
Frost Cushion Technical Data
Frost Cushion is available in 4″ and 6″ thickness, 8′ lengths, and nominal widths of 8″, 10″, 12″, and 48″.
Planning a project with Frost Cushion?
Contact Beaver’s sales team for product specifications, application guidance, and project support.
