Residential spray foam insulation significantly reduces energy loss, stabilizes indoor temperatures year-round, and enhances structural durability. Long-term advantages include lower utility costs, improved moisture resistance, and fewer maintenance issues over time. Compared to traditional insulation types, closed-cell spray foam delivers the highest R-value per inch, offering substantial benefits in cold and hot climates alike.
Applied correctly, spray foam forms an air barrier that limits heat transfer and air infiltration. Over time, this results in measurable energy savings, reduced HVAC strain, and better indoor comfort. South Chicago Insulation uses practical installation strategies suited to the Midwest climate, where winter drafts and summer humidity create unique performance demands.
Spray foam’s thermal resistance outperforms fiberglass and cellulose, especially in areas with air leakage risks like attics and rim joists. Long-term performance holds steady due to its non-settling, adhesive properties.
| Insulation Type | R-Value per Inch | Air Sealing Capability | Moisture Resistance | Durability (Years) |
|---|---|---|---|---|
| Spray Foam (Closed) | 6.0 – 7.0 | High | High | 30+ |
| Fiberglass Batt | 2.9 – 3.8 | Low | Low | 10-25 |
| Cellulose | 3.2 – 3.8 | Medium | Medium | 20-30 |
Bonus Tip: In older homes, retrofitting with spray foam in key areas such as crawlspaces and attic hatches can cut energy loss without disturbing finished interiors.
Spray foam adheres directly to surfaces and resists moisture absorption. This reduces the risk of mold growth in humid environments. Closed-cell spray foam acts as a vapor barrier, which is especially useful in crawlspaces and basement walls common in South Chicago homes.
Closed-cell foam adds rigidity to wall assemblies and roofing systems. In areas prone to shifting or seasonal expansion and contraction, such as older frame constructions, this added stiffness improves long-term structural performance. It also reduces vibration transfer, aiding in sound attenuation.
| Property | Value Range (Closed-Cell) | Notes |
|---|---|---|
| Compressive Strength | 20 – 30 psi | Reinforces framing in wall cavities |
| Water Vapor Permeability | <1.0 perm | Class II vapor retarder |
| Air Impermeability | 100% at 1″ thickness | Reduces HVAC workload |
| Thermal Conductivity | 0.17 W/m·K | Stable across temperature variations |
Bonus Tip: For maximum structural benefit, use closed-cell foam in wall studs and roof decking where lateral strength is desired.
Air sealing helps regulate interior temperatures. Spray foam minimizes drafts, pollen intrusion, and outdoor noise. In mixed-climate regions like Illinois, this stability contributes to more efficient HVAC operation and consistent indoor comfort throughout the year.
EPA data shows that indoor air pollutants can be 2 to 5 times higher than outdoor levels (EPA, 2023). By reducing unfiltered air entry, spray foam can improve indoor air quality over time.
Properly installed spray foam can last over 30 years without losing performance.
In some cases yes, especially in attics. A site evaluation determines compatibility.
Once cured, it is inert and does not off-gas. Proper installation and ventilation during application are key.
No. It doesn’t serve as a food source or nesting material for rodents or insects.
For accurate recommendations based on your home layout, age, and energy goals, contact the experienced team at South Chicago Insulation.
Phone: (779) 803-8025 Email: [email protected]
None under normal conditions. Periodic inspections around penetrations help catch minor issues.
Closed-cell foam remains stable across seasonal shifts, retaining its shape and R-value.
Yes, with proper substrate prep and warm material, application is possible in cold climates.
Closed-cell often doubles as one. Open-cell may require an additional barrier depending on location.
Yes. Open-cell foam is more effective for sound reduction due to its softer structure.