The decision tables Minneapolis homeowners actually need
Comparing insulation options means comparing numbers — R-values, applications, vapor barriers, and which foam belongs where. These tables organize it the way the professionals think about it.
Spray foam type comparison
| Feature | Open-Cell Spray Foam | Closed-Cell Spray Foam |
|---|
| Primary Use | Interior walls, attics | Exterior walls, basements, pole barns |
| Key Benefit | Soundproofing | Moisture & vapor barrier |
| Air Sealing | Complete air sealing | Stops cold air infiltration |
| Typical R-Value | R-21 to R-49 (in attics) | R-21 to R-49 (in attics) |
| Structure Type | Standard residential | Basements, workshops, pole barns |
Service guide by application
| Application Area | Recommended Foam Type | Primary Goal |
|---|
| Attics | Open or Closed-Cell | Prevent ice dams via air sealing |
| Basement Rim Joists | Closed-Cell | Stop cold air infiltration |
| Interior Walls | Open-Cell | Soundproofing between rooms |
| Exterior Walls | Closed-Cell | Thermal protection |
| Pole Barns/Garages | Closed-Cell | Create a vapor barrier |
Matching service vs traditional searching
| Vetting Factor | Independent Matching Service | Traditional DIY Search |
|---|
| Licensing | Verified MN Licensing | Homeowner must verify |
| Insurance | Verified coverage | Homeowner must verify |
| References | Verified customer references | Homeowner must verify |
| Speed | Matches in 1 business day | Variable/Time-consuming |
| Objectivity | Independent (not a contractor) | Often biased/Sales-driven |
| Cost | Completely Free | Free, but time-intensive |
Thermal performance (R-value) expectations
| Project Type | Expected R-Value Range | Performance Outcome | Recommended Foam | Specific Benefits |
|---|
| Minneapolis Attics | R-21 to R-49 | Eliminates attic heat loss | Open-cell and closed-cell | Complete air sealing; prevents ice dams |
| St. Paul Attics | R-21 to R-49 | Prevents ice dam formation | Open-cell and closed-cell | Complete air sealing |
| Exterior Wall Cavities | High Thermal Resistance | Serious winter insulation | Closed-cell | Higher R-value; air sealing |
| Basements / Rim Joists | Not in source | Stops cold air infiltration | Closed-cell | Creates a moisture barrier |
| Interior Wall Cavities | Not in source | Not in source | Open-cell | Soundproofing |
| Pole Barns and Garages | Not in source | Not in source | Closed-cell | Creates a vapor barrier |
Regional service availability
| Region | Primary Cities | Key Concerns |
|---|
| Core Metro | Minneapolis, St. Paul, Bloomington | Ice dams, basement moisture |
| West Metro | Edina, Minnetonka, Eden Prairie | Soundproofing, rim joist sealing |
| North/East Metro | Maple Grove, Plymouth, Woodbury | Large attic sealing, workshops |
Put the tables to work
These benchmarks come straight from the research behind our matching service. Get matched with a pre-vetted Minneapolis spray-foam installer who will build to these numbers — free, no obligation.
Related Articles
Compare your options: Browse all comparison guides →
Want help finding the right spray foam provider? Tell us what you're looking for and we'll help you connect with Minneapolis providers who can help. Get matched with local providers → — no obligation.
