This page provides technical reference documentation for design teams specifying preserved moss installations. Fire ratings, material safety data, and environmental conditions are drawn from supplier certification and internal testing. For project-specific documentation or assembly coordination, contact us directly.
Specifications & Compliance
Fire Performance
NF P 92-501 — Class M1
The preserved moss used in our installations has been tested for fire reaction under NF P 92-501. Test data provided by our moss supplier classifies the species in our standard signature blend as M1 - not flammable. Star moss, used only when specified, is classified as M2.
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M1 = not flammable (the standard signature blend)
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M2 = low flammability (Star moss, specified on request)
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This data covers the moss material. Classification of a finished installation depends on the full assembly - substrate, adhesive, and framing - and is assessed per project where a specification requires it. Coordinate with us early where a flame-rated assembly is required. Verification with the authority having jurisdiction may apply.
Supplier test documentation available on request.
Material Safety
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Preserved using non-toxic, glycerin-based solutions
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Free of heavy metals and hazardous solvents
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No active plant material, no allergens, mold, or microbial growth
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VOC documentation available on request; project teams to confirm against WELL v2 requirements.
Acoustic Contribution
Preserved moss has natural sound-dampening properties due to its porous structure and variable density.
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Suitable for improving reverberation in enclosed spaces
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Not a substitute for engineered acoustic assemblies
Moss may be used in combination with absorptive cores or acoustic-rated substrates for enhanced performance.
Environmental Conditions
Preserved moss is stabilized and does not grow or require light. Its longevity depends on environmental consistency.
Ideal Conditions:
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Relative humidity: 40–60%
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Temperature: 18–24°C (65–75°F)
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Low to medium exposure to airflow and direct sunlight
Avoid installations in areas with HVAC vents, direct sun, exterior exposure, or frequent physical contact.
To request material safety data sheets, VOC documentation, or fire certification records for your project submittal, contact info@evergreenescapes.ca with your project name and the documentation required.