Washington Service Area

    Hemp Insulation Built for Washington's
    Rain, Moisture & Strict Energy Codes

    GaiaCrete® breathes with the PNW climate — permanently mold-proof, carbon-negative, and exceeds Washington's energy codes.

    Why Washington Homes Need GaiaCrete®

    Washington's persistent rain and moisture destroy conventional insulation from the inside out.

    PNW Moisture Mastery

    Hygroscopic walls breathe with Seattle's rain. No trapped moisture, no rotting walls, no hidden mold.

    Permanent Mold Prevention

    pH 12+ makes mold impossible — essential for the Pacific Northwest's year-round dampness.

    Carbon Negative

    Sequesters more CO₂ than it produces. Supports Washington's Clean Energy Transformation Act.

    Breathable Walls

    Unlike spray foam that seals moisture in, GaiaCrete® lets walls dry naturally in both directions.

    Mild Climate Optimized

    Thermal mass is ideal for WA's moderate temperature range — consistent comfort, lower energy bills.

    Exceeds Energy Code

    Meets Washington's strict energy codes. Thermal mass performs beyond what R-value alone measures.

    Washington Insulation Comparison

    Feature GaiaCrete® Hempcrete Spray Foam Fiberglass
    Moisture Handling Breathable, hygroscopic Traps moisture inside Absorbs and holds water
    Mold Resistance Impossible (pH 12+) Hidden mold risk Mold in 24-48hrs
    Carbon Footprint Carbon negative High embodied carbon Moderate carbon
    Wall Drying Dries both directions One-way only Cannot dry
    Energy Code Exceeds WA code Meets minimum Meets minimum
    Lifespan 100+ years 20-30 years 15-20 years
    PNW Climate Fit ★★★★★ ★★☆☆☆ ★☆☆☆☆

    We Serve All of Washington

    GaiaCrete® installation available across the Evergreen State.

    SeattleTacomaSpokaneBellevueOlympiaEverettKirklandRedmondBellinghamVancouverKennewickYakimaBainbridge IslandIssaquahWalla WallaPort Townsend

    Frequently Asked Questions

    Is hemp insulation good for Washington's rainy climate?

    GaiaCrete® is ideal for the Pacific Northwest. Its hygroscopic properties manage Washington's constant moisture, its pH 12+ makes mold impossible, and breathable walls prevent the trapped moisture that plagues conventional PNW homes.

    Does hemp insulation meet Washington's energy code?

    GaiaCrete® meets and exceeds Washington's strict energy codes. Its thermal mass provides effective insulation beyond what R-value alone measures, and its carbon-negative profile supports WA's clean energy goals.

    Where is hemp insulation available in Washington?

    Mr Hemp House serves all of Washington — Seattle, Tacoma, Spokane, Bellevue, Olympia, and statewide. Call (740) 300-1565.

    Washington Healthy Home Resources

    State programs and resources for healthier, more energy-efficient Washington homes.

    WA.gov — State of Washington (Olympia)WA Ecology — Environmental QualityWA Commerce — Clean Energy ProgramsWA Dept. of Health — Indoor Air Quality

    Related Reading

    GaiaCrete® ProductWhat Is Hempcrete?Hemp Insulation ColoradoSpray Foam DangersEco-Friendly Insulation

    Get GaiaCrete® Hempcrete for Your Washington Home

    Free consultation. Built for PNW climate. Veteran-owned.

    Book Free Consultation (740) 300-1565
    Educational Resources

    Healthy Home Guides for Washington Homeowners

    Research-backed articles on hemp insulation, indoor air quality, and building science.

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    The Mr Hemp House™ Healthy Home Ecosystem

    Beyond insulation — a complete system for creating the healthiest possible home in Washington. From assessment to products to education.

    Healthy Home Assessment™

    Free digital assessment — scan every room for mold risk, air quality issues & insulation failures. Get your Healthy Home Score™ instantly.

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    Mr Hemp House™

    America's #1 hemp insulation installer. GaiaCrete® hempcrete alternative installation, professional assessments & healthy home consulting serving all 50 states.

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    AI companion to the book "The Poisoned Home" — ask questions about indoor toxins, mold, VOCs, and how to protect your family's health.

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