7 Common Myths About Spray Foam Experts in Durham, NC

Spray foam insulation is one of the fastest-growing insulation solutions across Durham. In fact, data from the U.S. Department of Energy suggests that effective insulation can reduce heating and cooling needs by over 30%. Yet, a surprising number of residents and commercial property owners still hesitate to hire spray foam experts due to misinformation.

From assumptions about cost to misconceptions about building safety and performance, the myths surrounding spray foam insulation professionals have made it harder for property owners to make informed decisions. This article clears up the confusion by breaking down seven persistent myths and explains what reliable insulation guidance looks like in Durham.

Spray Foam Experts Only Work on Large Commercial Projects

Some believe spray foam professionals only focus on big warehouses or industrial spaces. This is far from accurate.

Residential Projects are Common

Spray foam insulation professionals in Durham regularly work on single-family homes, duplexes, and townhouses. The same technology used in large facilities is scaled to fit residential spaces with attic, crawl space, and wall cavity applications.

Commercial Services are Just One Segment

While commercial insulation is a strong part of the industry, most expert foam teams offer flexible service packages that accommodate everything from a home renovation to a retail storefront.

All Spray Foam Professionals Use the Same Materials

The quality and composition of spray foam vary between providers. Not all insulation experts source or install the same materials.

Closed-Cell vs. Open-Cell Differences

Closed-cell foam has a denser structure and better moisture resistance, while open-cell foam provides better sound dampening. Trusted foam specialists help property owners choose based on the space and environmental conditions.

Material Sourcing and Certification

High-quality insulation experts use certified products tested for durability, air sealing, and environmental impact. Some companies even offer low-VOC or green-certified foams for sensitive settings.

Spray Foam Makes Buildings Too Airtight

The myth that spray foam makes homes or buildings “too tight” often stems from confusion between energy efficiency and poor ventilation.

Controlled Ventilation is Key

Efficient insulation providers pair spray foam with mechanical ventilation systems where necessary. This maintains airflow while preserving indoor temperatures.

Airtightness Helps, Not Hurts

Reducing uncontrolled air leaks lowers HVAC strain and keeps pollutants and humidity outside. The goal is balance, not suffocation.

Insulation Experts Don’t Understand Building Codes in Durham

Spray foam consultants must follow local guidelines—Durham is no exception. Reputable teams align every project with code requirements.

Understanding of Local Permits

Local insulation experts in Durham work with building officials, understand the zoning rules, and meet fire barrier and R-value standards.

Continuous Training

Spray foam professionals keep up with code changes and product updates through industry certifications and safety programs.

Any Spray Foam Expert Can Deliver the Same Results

This myth oversimplifies what goes into a successful insulation job. Results depend on skill, setup, and ongoing performance checks.

Equipment and Application Technique

• High-end rigs and real-time mixing systems help ensure even spray coverage.

• Proper mixing reduces risks of shrinkage, off-ratio foam, or weak adhesion.

Post-Installation Verification

• Leading contractors use infrared scans to detect cold spots or leaks.

• Blower door tests help verify air sealing and spot areas that need adjustment.

Spray Foam is Only for New Construction

Many property owners still think spray foam insulation is only feasible during the early building phase. That’s outdated.

Retrofit Options are Expanding

Spray foam consultants can insulate older homes and existing commercial structures using injection methods or open-access installs.

Minimal Disruption

Modern tools and techniques allow for clean, precise work without tearing down entire walls or ceilings.

DIY Kits Work Just as Well as Hiring Experts

This myth has gained traction with the rise of spray foam kits in hardware stores, but the risks often outweigh the convenience.

Inconsistent Coverage and Cure

DIY kits rely on user control, which can lead to underfilled cavities, improper ratios, and odor problems due to poor curing.

Lack of Equipment and Safety Gear

Professionals use PPE, temperature-controlled rigs, and respirators—tools not included in most consumer kits.

Summary of Key Distinctions

Ready to Achieve Energy-Efficient Indoor Performance?

High-performance insulation reduces thermal loss, improves indoor air quality, and supports sustainable energy use. Spray foam isn’t just for new builds—it’s one of the most effective ways to improve building performance in existing properties too.

Raleigh Excel Spray Foam Insulation brings experience, product knowledge, and proven application methods to homes and commercial buildings across Durham. Every installation is tailored to the building’s structure, moisture exposure, and energy use.

Call (919) 301-9435 or email [email protected] to speak with a certified insulation expert.

FAQs

Can spray foam be added to older homes in Durham? Yes. Expert foam teams use methods that allow access behind walls or under floors without full renovation.

Is there a difference between open-cell and closed-cell foam? Closed-cell is denser, moisture-resistant, and structural. Open-cell is softer, more flexible, and better for sound control.

How long does professionally installed spray foam last? High-quality foam from trusted specialists can last the life of the building with no sagging or deterioration.

Does spray foam impact indoor air quality? Properly cured foam applied by efficient insulation providers improves air sealing and reduces pollutant entry.

Are permits required for spray foam work in Durham? Yes. Spray foam consultants understand and manage local permit requirements to ensure compliance.

Reviewer: With nearly a decade in the spray foam insulation field, William Harris reviewed this post and provided guidance that reflects both technical understanding and real-world marketing experience.