Hidden insulation problems in a newer Belfast home

How a Belfast homeowner uncovered attic insulation issues and saved $4,000 with Efficiency Maine rebates

The problem: A “newer” home that wasn’t performing the way it should

After years living in older homes with obvious insulation problems, Tom M. expected his 2008 Belfast home to be comfortable and efficient. Instead, he quickly discovered a major issue: the attached garage had no insulation – just bare studs.

Concerned about winter comfort and energy loss, Tom contacted Evergreen Home Performance for a Belfast insulation estimate. What began as a simple garage project soon revealed much larger hidden problems affecting the entire home.

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A broader look: When an energy advisor sees the bigger picture

Tom originally reached out about insulating the garage, but Evergreen Energy Advisor Irene suggested stepping back and evaluating the entire home first.

Her comprehensive Belfast home energy audit examined the attic, basement, and building envelope, uncovering hidden insulation and air-sealing issues that were quietly affecting comfort and energy performance throughout the house.

Without that broader assessment, Tom would have fixed only the most visible problem while larger efficiency issues remained unresolved.

What the Belfast home energy audit uncovered

The audit revealed multiple performance issues that the family had never noticed, including inadequate attic insulation, significant air leakage, and evidence of rodent entry points.

Because the home had changed ownership several times during and after the 2009 housing downturn, insulation details had been installed inconsistently, leaving gaps that reduced comfort and increased heating costs.

These hidden issues are common even in newer homes, which is why Evergreen’s whole-home evaluation approach often identifies opportunities that homeowners don’t realize exist.

The solution: Professional Belfast attic insulation and air sealing

Phase I: Main house attic (August 2024)

Evergreen’s insulation team began by improving the attic’s thermal and air barrier systems:

• Removal of outdated insulation materials where necessary
• Air sealing around wiring, plumbing, and vent penetrations
• Framing improvements to achieve proper insulation depth
• Dense-pack cellulose installed in attic slopes (R-44)
• Loose-fill cellulose installed across the ceiling plane (R-58)
• Air-sealed attic hatch and improved attic access

After installation, blower-door testing showed a 15% reduction in air leakage, improving comfort and reducing energy loss.

Phase II: Garage insulation (September 2025)

About a year later, Evergreen returned to insulate the attached garage – the original concern that led Tom to call. Insulating the garage walls and roof slopes helped reduce cold-air transfer into adjacent living spaces, completing the home’s building-envelope improvements.

Learn more about Evergreen’s insulation services and how targeted upgrades can improve year-round comfort.

Making sense of Efficiency Maine rebates

Navigating available incentives was a key part of the project. Evergreen helped Tom identify qualifying upgrades and complete the rebate process, resulting in $4,000 in Efficiency Maine incentives for the attic improvements.

Explore available Efficiency Maine rebates and financing to see how insulation upgrades can become more affordable.

An educational experience, not a sales pitch

Throughout the project, Tom appreciated Evergreen’s advisory approach. Instead of feeling pressured to make quick decisions, he was given time to review recommendations, understand testing results, and plan improvements that made sense for his home and budget.

“I never got the sense she was really selling anything,” Tom said. “She was great, like giving advice.”

The results: A more comfortable Belfast home

Today, Tom and his family live in a home that feels noticeably more comfortable year-round:

• Improved attic insulation levels and air sealing
• Reduced drafts and cold spots
• Sealed rodent entry points
• Lower heating energy loss
• Insulated garage reducing cold transfer into the home

Just as important, the family now has confidence that hidden building-performance problems were identified and solved before becoming costly repairs.

Your Maine home deserves the same attention

Like Tom, many homeowners live with hidden insulation and air-sealing problems without realizing it. A professional whole-home assessment can reveal opportunities to improve comfort, reduce energy bills, and access thousands of dollars in rebates.

Schedule your free consultation or call 207-594-2244 to get started.

Evergreen Home Performance proudly serves homeowners in Belfast, Rockland, Portland, and communities across Maine with professional insulation, air sealing, and energy-efficiency upgrades.