Tag: frost protected shallow foundation

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How to Design a Frost Protected Shallow Foundation System

My brother has an upcoming construction project on a property he owns that he’s asked for my help in both the design and construction of the structure.  There are portions of the project that are planned to be covered by Fine HomeBuilding Magazine plus I will be writing several blog posts for Green Building Advisor, Rockwool, and for my blog, Northern Built.  One of the first tasks is to plan the foundation system, in this case it will be a frost protected shallow foundation (FPSF).  The illustration below shows both the foundation and wall construction ideas.

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Construction Design-Frost Protected Shallow Foundation (FPSF)

This post first appeared at the Green Building Advisor website.

One of the most popular foundation systems used in my market, and one I’ve been using for more than a decade, is the frost protected shallow foundation.  My very cold climate requires footing depths of five feet.  Digging, constructing and insulating a footing and foundation system that deep is time consuming and expensive.  A shallow foundation system can be a substantial savings for a new build.

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