Fire/ Pests/ Humidity
Fire, Pests and Humidity
Most common question is about Fire, Pests and Humidity
Fire
Fire needs air to be able to burn. The straw in our panels is compressed to a density of 115 kg/m³ (6.9 lb/ft³), eliminating oxygen pockets that could sustain a fire. With a high silica content, straw naturally resists combustion.
If exposed to flames, it forms a protective charcoal layer on the surface, further insulating and safeguarding the material.
Fire Performance of the panel
The panel’s reaction to fire is classified as Class E. Without any additional surface treatments, the panel achieves a fire resistance rating of REI 30.
Fire Performance Of The Standard EcoCocon Wall Assembly
When combined with clay plaster, EcoCocon panels are certified to withstand two hours of intense fire exposure, meeting the stringent requirements of REI 120 (interior fire) and REIef 120 (interior fire with structural integrity). These certifications highlight the high safety standards of the assembly.
During testing, the wall assembly endured temperatures exceeding 1000°C (1832°F) on one side for two hours, while the opposite side experienced an average temperature increase of only 17.7°C (63.9°F).
Extensive testing has been conducted on wall segments built with EcoCocon straw panels, designed as load-bearing walls with fire-separating functionality.
The results demonstrate that adding additional layers further enhances the fire resistance of EcoCocon panels.
All tests were performed with an airtight membrane applied to the exterior side of the EcoCocon panels, subjected to a load of 70.0 kN/m.
For complete wall configurations and detailed test results, refer to the “Classification of Fire Resistance.” Test reports are available upon request.
Pests
Pests are just as likely to occur in straw houses as they are in conventional homes, and the same preventative measures apply.
Pests want to go in where there is Food, Shelter and Warmth.
Food: There is no food in the straw for pests.
Shelter: Because the straw is so tightly compressed, it is almost impossible for any pests to enter.
Warmth: Straw has such a high insulation value, so the outside of the straw panel is cold and will not be attractive for pests to get in, it’s no more attractive than any other building.
To minimize the risk of pest infestations, EcoCocon incorporates the following design features:
• Densely Compressed Straw: The tightly packed straw eliminates gaps, preventing pests from nesting.
• Enclosed Structure: Panels are covered with additional sealed layers, blocking access for pests.
• Dry Environment: A breathable membrane and proper sealing maintain dryness, which deters pests.
• Natural Pest Resistance: Straw doesn’t serve as a food source, particularly when dry and tightly compressed.
The Humidity
EcoCocon panel has been built with success in 29 countries in almost all climate zones. The EcoCocon straw panel is made by nature and designed to be handled by nature.
The EcoCocon panel has been shown to do well in all kinds of climates, including areas with high humidity. EcoCocon Panels have also been built successfully in areas that are prone to extreme weather like hurricanes, wildfires and earthquakes. The EcoCocon straw panel can be built in any state after gaining approval from the local authorities. We would need to work with a local engineer to ensure compliance with area-specific building codes, as each region may require different solutions for air and vapor barriers as well as climate considerations.
To support your project, we offer WUFI calculations to ensure it meets the highest standards of quality, performance, and comfort.
For the humidity inside:
In most of our projects we use clay plaster. Clay plaster is a natural humidity regulator, helping to maintain optimal indoor air quality by absorbing and releasing moisture as needed. Combined with the breathable properties of EcoCocon straw panels, this system ensures a toxin-free, comfortable, and healthy home.
