Frost-Protected Shallow Foundations (FPSF) for Small Slabs: Insulation Layout and Drainage Basics
Introduction Frost-Protected Shallow Foundations (FPSF) are a way to keep concrete slabs from freezing by using insulation and careful drainage. As a DIYer, you’ll want to plan insulation under and around the slab edge and maintain a continuous layer. Always check local rules and product instructions for how to install and transition between insulation and […]










