Spray Foam vs. Fiberglass Batts

Spray Foam vs. Fiberglass Batts: Which Is Right for You?

Choosing between spray foam and fiberglass batts is one of the most common decisions Minneapolis homeowners face when planning a spray-foam project. Both options have real trade-offs in cost, lifespan, and day-to-day use — and the right pick depends on your property, your budget, and how long you plan to stay in the home. This guide breaks the decision down in plain language so you can walk into a consultation knowing exactly what to ask.

Quick Comparison

FactorSpray FoamFiberglass Batts
Air SealingSeals gaps, stops draftsBatts leave gaps, no air seal
R-ValueHigher per inchLower, settles over time
MoistureClosed-cell blocks moistureAbsorbs and holds moisture
Cost1.50–4.50 per sq ft0.50–1.50 per sq ft

Choose Spray Foam If…

you want an airtight, high-R envelope. Skip it if your situation is closer to the fiberglass batts side of the table above.

Choose Fiberglass Batts If…

you want the cheapest insulation and have simple cavities. Skip it if spray foam fits the criteria on the other side.

Questions to Ask Local Spray Foam Pros

Still weighing the trade-offs? A local Spray Foam professional who works in Minneapolis every day can look at your specific property and give you a straight answer — which option fits, what it will cost, and what to expect.

More Comparisons

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Not sure which comparison you need? Browse all comparisons.

Continue Your Research

Learn more before you decide — explore the guides, tools, and answers below.

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