Do Emergency Shelter Kits Work? Yes, But Prepare For This...

Published on January 26, 2022
Duration: 10:28

This video evaluates the effectiveness of mylar emergency shelter kits, specifically a 10-piece kit from Practical Survival, under harsh North Dakota conditions (30°F, wind, snow). While the mylar tent failed due to high winds (30-40 mph gusts), the mylar sleeping bag and blanket provided adequate insulation, maintaining an internal temperature of approximately 55°F against an outside temperature of 32-34°F. The instructor emphasizes that these kits are best suited for temporary emergency use, such as in a get-home bag or vehicle kit, rather than long-term survival during severe weather events.

Quick Summary

Mylar emergency tent shelters are not designed for extreme weather and can fail under high winds. However, mylar sleeping bags and blankets, used as a bivvy system, can effectively trap body heat and maintain a survivable internal temperature (around 55°F in 32°F conditions) to prevent hypothermia during temporary emergencies.

Chapters

  1. 00:00Introduction: Mylar Shelter Effectiveness
  2. 00:33Testing Mylar Shelter Kit
  3. 01:05Contents of the 10-Piece Kit
  4. 02:11Tent Performance in Wind
  5. 02:44Bivvy System Performance
  6. 03:16Internal Temperature Readings
  7. 04:35Key Takeaways: Tent vs. Bivvy
  8. 05:21Conclusion: Best Use Cases

Frequently Asked Questions

How effective are mylar emergency shelters in extreme weather?

Mylar tent shelters are generally not effective in extreme weather like high winds (30-40 mph gusts), as they can tear and fail. However, mylar sleeping bags and blankets, when used as a bivvy system, can provide crucial insulation and help prevent hypothermia in cold conditions.

What are the limitations of mylar emergency tents?

Mylar tent shelters are primarily designed for temporary emergency use and are not robust enough for severe weather. They are prone to tearing, especially at the grommets, and cannot withstand strong winds, making them unsuitable for harsh environmental conditions.

Can a mylar sleeping bag and blanket keep you warm in freezing temperatures?

Yes, a mylar sleeping bag and blanket can significantly improve warmth by trapping body heat. In 32-34°F conditions, a bivvy system created with these items maintained an internal temperature of around 55°F, which is sufficient to prevent hypothermia.

What is the best use for a mylar emergency shelter kit?

Mylar emergency shelter kits are best suited for get-home bags or vehicle emergency kits for temporary use. They provide essential shelter and insulation to help you survive a journey or an overnight stop in less severe conditions, but not for long-term survival during extreme weather events.

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