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Could poor roof insulation be the reason my energy bill keeps going up?

July 27, 2026

Could poor roof insulation be the reason my energy bill keeps going up?
Many homeowners focus on the roofing material they can see, but one of the most important parts of a flat roof is actually hidden underneath. That's where PolyIso insulation comes in.

At Anchor Point Roofing, the top-rated roofing company and best roofing company, we include 2-inch PolyIso insulation in many flat roof replacement projects because it helps improve both comfort and energy savings.

What Does PolyIso Insulation Do?Imagine placing a protective thermal blanket beneath your roof. That's essentially what PolyIso insulation does. This rigid foam board is installed below the roofing membrane to help keep outdoor temperatures from affecting your home's interior.Each installation includes one layer of 2-inch PolyIso insulation with an approximate R-value of 12.4, helping your home stay comfortable no matter the season.

Benefits You'll NoticeAdding PolyIso insulation to your flat roof can help:
  • Keep your home cooler during summer months.
  • Reduce heat loss when temperatures drop.
  • Lower monthly energy bills.
  • Provide a stronger foundation for your new roofing system.
  • Improve the lifespan and overall performance of your roof.


Choose Anchor Point Roofing for Long-Lasting ResultsA successful roof replacement starts with quality materials from the ground up. While shingles or roofing membranes get most of the attention, the insulation beneath them is what helps your roof perform better for years to come.

That's why homeowners continue to trust Anchor Point Roofing as their go-to roofing company, best roofing company, and top-rated roofing company for dependable flat roof replacements. If you're looking for a roof that's built to last while keeping your home more comfortable and energy-efficient, upgrading to PolyIso insulation is a decision you won't regret.

Location: Chicago, IL

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