Tennessee · IECC Climate Zone 3A-4A · Mixed-humid valley and plateau
Healthy Homes for Tennessee — Karst Radon and Valley Air
Virtual Home Health Score assessments statewide. GaiaCrete™ detailed for Tennessee's Zone 3A-4A climate, with karst radon risk flagged in every assessment. Founding Mr Hemp House® dealer territories open by ZIP code.
Karst geology and radon
Middle and East Tennessee's limestone karst gives soil gas direct routes into basements, and county radon averages run well above the action level in places.
Valley inversions and particulate
East Tennessee valleys trap wood smoke and vehicle particulate under winter inversions, which leaky homes then draw indoors.
Humid summers and crawlspace mold
Tennessee's long humid season condenses on cool crawlspace surfaces, feeding mold in floor systems statewide.
What Climate Zone 3A-4A Means for Tennessee Homes
Tennessee stretches from Zone 3A in the Memphis bottomlands to Zone 4A across the Cumberland Plateau and East Tennessee valleys. Karst limestone under much of Middle Tennessee produces both sinkhole drainage problems and elevated radon. Valley inversions in the east trap particulate on still winter mornings.
Tennessee adoption of the IRC and IECC
Tennessee adopts the residential and energy codes statewide through the State Fire Marshal's Office, with local opt-out provisions.
Start With Your Home Health Score in Tennessee
Virtual Healthy Home Assessments available in Tennessee. 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 Tennessee
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 Tennessee
Tennessee has no certified dealer yet. Founding dealers get territory priority, training, and direct GaiaCrete™ supply as the platform expands.
Claim the Tennessee territoryCredentials Behind Every Tennessee 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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