The Healthy Home concept

    A home built and finished so the air inside is cleaner than the air outside — using materials that breathe, never off-gas, and resist mold for the life of the building.

    See The Transformation

    From traditional wall systems to healthier living.

    Living Room: Conventional vs. Healthier Materials

    Healthier living room finished with GaiaCrete™ hempcrete / hemp-lime building material alternative and lime clay plaster
    Conventional living room built with drywall, fiberglass batts and plastic vapor barrier
    Conventional
    Healthier
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    Bedroom: Conventional vs. Healthier Materials

    Healthier bedroom with lime clay plaster walls, MgO board and natural textiles
    Conventional bedroom with painted drywall, synthetic carpet and fiberglass insulation
    Conventional
    Healthier
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    Attic & Insulation: Conventional vs. Healthier Materials

    Attic insulated with GaiaCrete™ hempcrete / hemp-lime building material alternative
    Conventional attic insulated with fiberglass batts and spray foam
    Conventional
    Healthier
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    The 4 pillars

    Clean indoor air

    Eliminate VOCs, formaldehyde, and off-gassing from synthetic materials so every breath is clean.

    No moisture, no mold

    Vapor-open walls and natural materials keep walls dry and prevent hidden mold for the lifetime of the home.

    Non-toxic materials

    Lime, hemp, mineral paints, and natural fibers replace petrochemicals, flame retardants, and PFAS.

    Healthy systems

    Right ventilation, filtered water, low-EMF wiring, and safer cleaning swaps support the building.

    The materials

    Every healthy home starts with the right materials. These four replace 90% of what's toxic in modern construction.

    GaiaCrete™ hemp-lime building material

    Vapor-open, mold-resistant, naturally insulating wall system that replaces spray foam.

    Lime plaster

    High-pH (12.4) breathable finish that resists mold and regulates humidity.

    Mineral paints

    No-added-VOC silicate paints that bond to lime.

    Natural fiber insulation

    Hemp, wool, and cellulose alternatives to fiberglass and spray foam.

    The Poisoned Home

    Christopher Penn's book exposes what's actually in the average American home — and how to fix it. Required reading for anyone serious about a healthy home.

    Get the book on Barnes & Noble

    Ready to test your home?

    Mr Hemp House® Pro unlocks the full Home Health Score — 12 categories, A–F score, room-by-room plan.

    See pricing