New Jersey · IECC Climate Zone 4A-5A · Mixed-humid to cold
Healthy Homes for New Jersey — Shore Salt, Flood Rules, Humid Summers
Virtual Home Health Score assessments statewide. GaiaCrete™ detailed for New Jersey's Zone 4A-5A swing and coastal construction requirements. Founding Mr Hemp House® dealer territories open by ZIP code.
Coastal flood and salt exposure
Post-Sandy elevation requirements changed how New Jersey shore homes are built, but salt spray and storm-driven wetting still attack the walls above the flood line.
Industrial-legacy soil and vapor intrusion
Parts of New Jersey sit near legacy industrial sites where soil-gas vapor intrusion is a documented concern for indoor air.
Humid summers in tight houses
New Jersey's July dew points overwhelm oversized air conditioners that cool fast without dehumidifying, leaving damp interiors and mold growth.
What Climate Zone 4A-5A Means for New Jersey Homes
New Jersey spans Zone 4A along the shore and southern counties into Zone 5A in the northwest highlands. Sandy's flood footprint still shapes shore construction, where elevated homes face salt spray and wind uplift. Inland, industrial-legacy soils and dense highway corridors make indoor air filtration a real design input.
New Jersey Uniform Construction Code (N.J.A.C. 5:23)
The UCC adopts the IRC and IECC statewide, with flood-resistant construction requirements in mapped coastal zones.
Start With Your Home Health Score in New Jersey
Virtual Healthy Home Assessments available in New Jersey. 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 New Jersey
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 New Jersey
New Jersey has no certified dealer yet. Founding dealers get territory priority, training, and direct GaiaCrete™ supply as the platform expands.
Claim the New Jersey territoryCredentials Behind Every New Jersey 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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