Commercial and Residential Insulation Contractor in Lake Forest, IL
For homes, commercial buildings, and industrial properties in Lake Forest, IL (Climate Zone 5), the recommended attic insulation level is between R-49 and R-60, delivering excellent thermal protection, reduced energy loss, and long-term cost savings.
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Why Choose Green Attic?
Green Attic Insulation provides advanced insulation services that help meet energy compliance goals and support sustainable property operations.
With over 15 years of serving Chicagoland homes and buildings, we provide:
- Full-service insulation solutions
- Licensed and certified technicians
- Immediate rebate opportunities
- Healthier indoor air quality
- Clear pricing and strong warranties

EPA Lead Safe Certified
OSHA Certified

PHS Environmental

BBB Accredited

Nextdoor Recommended

BPI Licensed

NAHB Member

EPA Certified

ASHI Certified Inspector
HomeAdvisor Approved

Angie's List Verified

Yelp Rated
Our Comprehensive Insulation Services

Spray Foam Insulation
Lake Forest, IL

Cellulose Insulation
Lake Forest, IL
Our Proven Process
Step 1: Free Energy Audit
Step 2: Customized Plan
Step 3: Professional Installation
Step 4: Results
Frequently Asked Question
How should old insulation be disposed of?
To safely dispose of old insulation, first identify the type of insulation, wear appropriate protective gear, and contact your local recycling centers or waste management authorities for specific disposal or recycling guidelines.
Why is insulation so expensive?
The high cost of home insulation primarily stems from the expensive extraction and transportation of raw materials, such as rock or oil. Additional costs accrue during manufacturing, which involves high expenses related to energy consumption and labor, reflecting the overall intensive nature of producing effective insulation materials.
How thick is R30 insulation?
The thickness of R30 insulation is typically 9.5 inches. This measurement helps ensure that the insulation provides the intended thermal resistance, often used in various residential and commercial building applications to enhance energy efficiency.





