Illustration showing the effects of frost heave on concrete piers, relevant for exterior renovations in Madison WI. The left side shows a stable pier in soil, while the right side depicts the pier tilted due to frost heave forces. A surface-to-soil interaction diagram is included, highlighting freezing processes.

Know your Frost line

Over the years, I have had many friends and relatives ask me about frost line depth in the Madison area since adding the fireplace and the pergola to our back patio. Since they want to do similar things in their back yard, they asked me when all they would have had to do was Google […]

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