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Zone 3โ€“5 Cold Climate Guides

Cold Climate Building & Insulation

Everything you need to insulate, seal, and protect a home built for Midwest winters โ€” from Zone 4 R-values to ice dam prevention and garage insulation.

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Cold Climate
How to Insulate a New Home in a Cold Climate โ€” What We Learned Building in the Midwest
We made mistakes so you don't have to. This is the insulation strategy we'd use again โ€” and the one change we wish we'd made before drywall went up.
Read Guide โ†’ 8 min read
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Comparison
Best Insulation Types for Extreme Cold: Spray Foam vs. Fiberglass vs. Rigid Board
R-value per inch, moisture resistance, cost โ€” all three types compared side-by-side for the Midwest's freeze-thaw conditions. One clear winner for rim joists.
Read Guide โ†’ 9 min read
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Cold Climate
What R-Value Do You Actually Need in the Midwest?
Zone 4 minimum code requirements versus what actually keeps your heating bill under control โ€” the difference is larger than most builders will tell you.
Read Guide โ†’ 7 min read
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Cold Climate
How to Prevent Ice Dams on Your Roof (and What Causes Them)
Ice dams aren't a roofing problem โ€” they're an insulation and ventilation problem. Fix the cause once instead of pulling ice every February.
Read Guide โ†’ 8 min read
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Product Guide
Cold Climate Windows: What to Look For and What We Chose for Our New Build
U-factor, triple pane versus double low-e, and the frame material question that tripped us up โ€” with the exact windows we chose and why.
Read Guide โ†’ 10 min read
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Cold Climate
Why Your Garage Gets So Cold โ€” and How to Fix It
An uninsulated garage door destroys everything else you've done. Here's the right fix โ€” and it costs less than a single heating bill.
Read Guide โ†’ 7 min read
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