Massachusetts · IECC Climate Zone 5A-6A · Cold-humid
Healthy Homes for Massachusetts — Old Stock, Stretch Code, Nor'easters
Virtual Home Health Score assessments statewide. GaiaCrete™ detailed for Massachusetts triple-deckers, Stretch Code new builds, and wind-driven coastal rain. Founding Mr Hemp House® dealer territories open by ZIP code.
Pre-1940 housing at scale
Massachusetts has one of the country's oldest housing inventories. Knob-and-tube era wall cavities, added insulation, and no air barrier combine into moisture traps.
Radon from glacial and granite geology
Radon potential varies sharply across Massachusetts counties, and tight winterization without ventilation planning can raise indoor concentrations.
Nor'easter wind-driven rain
Coastal Massachusetts storms push rain horizontally into cladding joints, wetting sheathing that then dries slowly through a cold spring.
What Climate Zone 5A-6A Means for Massachusetts Homes
Massachusetts combines Zone 5A-6A heating demand with a dense stock of pre-1940 triple-deckers and balloon-framed houses. Granite and glacial till underfoot mean radon shows up unevenly from the Berkshires to the North Shore. Nor'easters drive wind-borne rain into walls that were never designed for a drainage plane.
780 CMR, Massachusetts State Building Code (9th Edition)
Massachusetts layers a statewide Stretch Energy Code and an opt-in Specialized Code on top of the base IECC requirements.
Start With Your Home Health Score in Massachusetts
Virtual Healthy Home Assessments available in Massachusetts. 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 Massachusetts
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 Massachusetts
Massachusetts has no certified dealer yet. Founding dealers get territory priority, training, and direct GaiaCrete™ supply as the platform expands.
Claim the Massachusetts territoryCredentials Behind Every Massachusetts 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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