Iowa · IECC Climate Zone 5A · Cold-humid continental
Healthy Homes for Iowa — Nation-Leading Radon and Derecho Wind
Virtual Home Health Score assessments in all 99 counties. GaiaCrete™ detailed for Iowa's Zone 5A design temperatures and storm exposure. Founding Mr Hemp House® dealer territories open by ZIP code.
Nation-leading radon averages
Iowa's statewide average indoor radon is among the highest measured in the United States, and basement bedrooms sit directly in the exposure path.
Derecho and straight-line wind
Iowa's 2020 derecho showed how straight-line wind can strip cladding and roofs statewide, and the rain that follows soaks the exposed assemblies.
Agricultural air and well water
Rural Iowa homes contend with seasonal field dust, ammonia, and nitrate in private wells, none of which the building code addresses.
What Climate Zone 5A Means for Iowa Homes
Iowa records some of the highest average residential radon concentrations in the nation, a product of glacial till and near-universal basements. The Zone 5A continental climate swings from humid, storm-heavy summers to hard winters, with derecho-scale wind events now part of the planning picture. Agricultural operations shape rural air and water quality across most counties.
Iowa State Building Code (661 IAC 301, IECC-based energy provisions)
Iowa adopts a statewide energy code applicable to residential construction, administered by the State Fire Marshal.
Start With Your Home Health Score in Iowa
Virtual Healthy Home Assessments available in Iowa. 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 Iowa
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 Iowa
Iowa has no certified dealer yet. Founding dealers get territory priority, training, and direct GaiaCrete™ supply as the platform expands.
Claim the Iowa territoryCredentials Behind Every Iowa 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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