Illinois · IECC Climate Zone 5A · Cold-humid prairie
Healthy Homes for Illinois — Radon Counties and Brick Freeze-Thaw
Virtual Home Health Score assessments statewide. GaiaCrete™ detailed for Illinois's Zone 5A extremes and Chicago masonry construction. Founding Mr Hemp House® dealer territories open by ZIP code.
Statewide radon prevalence
A majority of Illinois counties fall in elevated radon zones, and the state requires radon disclosure in real-estate transactions for that reason.
Chicago masonry freeze-thaw
Illinois brick two-flats and bungalows suffer mortar-joint deterioration from freeze-thaw, letting wind-driven rain reach the interior wythe.
Humid prairie summers
Illinois summer dew points load basements and lower levels with moisture that air conditioning alone does not remove.
What Climate Zone 5A Means for Illinois Homes
Illinois sits in Zone 5A with sharp seasonal extremes: humid prairie summers, lake-driven wind off Michigan in Chicago, and cold snaps that test every envelope in the state. The Illinois Emergency Management Agency reports elevated radon across a majority of counties. Older Chicago brick two-flats and bungalows dominate the metro housing stock.
Illinois Energy Conservation Code (IECC adoption)
Illinois adopts the IECC statewide and preempts weaker local energy codes; Chicago maintains its own building code.
Start With Your Home Health Score in Illinois
Virtual Healthy Home Assessments available in Illinois. In-person coverage expanding.
Home Health Score
A free screening that scores your home across indoor air quality, moisture and mold risk, building materials, and ventilation — so you know where to look first.
Healthy Home Assessment
A professional walkthrough of materials, moisture conditions, and ventilation, delivered as a prioritized action plan. Screening and guidance — not a medical or diagnostic service.
One part of the platform
GaiaCrete™ Insulation & Building Solutions in Illinois
GaiaCrete™, a hempcrete alternative, is Mr Hemp House®'s bio-based hemp-lime building material — used for new construction, retrofits, and insulation upgrades. It is one offering inside the platform, alongside the Home Health Score and Healthy Home Assessment.
- Thermal performance R-2.5+ per inch
- Class A surface burning characteristics (ASTM E84)
- Mold-resistant at pH 12+
- 100% Biobased Carbon Content (ASTM D6866-22)
- Vapor-permeable, no added VOCs
- Net carbon sink by design
Actual thermal performance varies by formulation, density, moisture content, installation method, and complete wall assembly. Final whole-wall thermal performance depends on the complete assembly, including material density, framing, finishes, thermal bridging, moisture conditions, and installation.
Be the First Mr Hemp House® Certified Dealer in Illinois
Illinois has no certified dealer yet. Founding dealers get territory priority, training, and direct GaiaCrete™ supply as the platform expands.
Claim the Illinois territoryCredentials Behind Every Illinois Project
Mr Hemp House® was founded in 2018 in Orlando, Florida.
Veteran-Founded, Veteran-Owned
Founded and owned by a U.S. military veteran.
SBA VOSB Certified
SAM.gov Registered
Active registration in the System for Award Management.
IMPEL Cohort
DOE / Lawrence Berkeley National Laboratory Innovation Program cohort.
VIP Procurement Cohort
Veteran Institute for Procurement graduate.
DOE Zero Energy Ready Home Partner
U.S. Department of Energy Zero Energy Ready Home program partner.
Beta Analytic Verified Testing
ISO/IEC 17025-accredited testing — 100% Biobased Carbon Content per ASTM D6866-22 (Certificate #531872642609133657, October 2022).
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