Central Michigan · Est. 1890
Articles

Insulation basics for Michigan homes

R-values, blown-in versus batt, and the spots where it actually matters.

January 19, 20265 min readDeWitt Lumber

In our climate zone, the attic is where the money is. Walls matter, rim joists matter more than people think, and the attic matters most.

Where to spend first

  • Attic: bring it to R-49 or better
  • Rim joists: seal and insulate — a cheap, high-return fix
  • Walls: worth it during a siding or drywall project, rarely on its own

Stop by any of our four Central Michigan yards and a member of our staff will walk you through the options, pull real samples, and put together a material list you can build from.

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Four Central Michigan yards, real samples, and staff who have answered this question before.

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