Shelter & Exposure

Req 5a — Exposure Conditions

5a.
Shelter. Describe the steps you would take to survive in the following exposure conditions: Cold and snowy, Wet, Hot and dry, Windy, At or on the water.

Survival in different exposure conditions requires understanding what kills you fastest in each environment and planning accordingly. The principles are the same (shelter, water, fire), but the strategies differ dramatically.

Five shelter types matched to their weather conditions: snow, sun, rain, wind, and water

Cold and Snowy Conditions

Killer: Hypothermia (core temperature drops below 95°F)

Survival Strategy

Insulation is everything. Your body loses heat 25 times faster to snow and cold than to air at the same temperature. You need insulation from the ground and protection from wind.

Build a shelter:

Stay dry: Wet clothing kills you faster than cold. Remove wet layers. Keep dry clothes dry by using a waterproof barrier.

Layer clothing: Wear multiple thin layers that you can adjust. Remove layers before sweating; add layers before shivering.

Build a fire: In cold conditions, fire is life-saving. Focus on warmth, not cooking.

Cold Weather Survival Skills
Winter Survival Skills Comprehensive guide to winter survival techniques.

Wet Conditions

Killer: Hypothermia (water cools you 25-30 times faster than air)

Survival Strategy

Stay dry: The wet itself isn’t the killer—it’s the evaporative cooling. Get out of water, get out of wet clothes, get dry.

Build a waterproof shelter: Your shelter must shed water. A lean-to covered with bark, branches, and leaves works if tilted to shed rain. A cave or overhanging rock is ideal.

Build a fire: Wet wood burns if you find dry tinder and kindling first. Look for wood protected under larger logs or rocks.

Key steps:

  1. Get out of wet clothes or at least wring them out
  2. Build a shelter that keeps rain off
  3. Build a fire for warmth and drying
  4. Stay put once sheltered (wandering in rain causes exhaustion)
Building Fire in the Rain

Hot and Dry Conditions

Killer: Dehydration and heat exhaustion

Survival Strategy

Shade is your shelter. In extreme heat, a covered area is more important than a traditional shelter. Any source of shade—overhanging rocks, dense trees, a lean-to—reduces heat stress.

Reduce activity: Don’t hike during peak heat (10 AM - 4 PM). Move during early morning and evening.

Conserve water: Don’t ration excessively, but don’t waste it either. Sipping regularly is better than binge-drinking.

Find water: Look for water sources—seeps in rocks, water-filled plants, digging in dry creek beds. Without water, you’ll die in days.

Key steps:

  1. Find or create shade
  2. Rest during heat of day
  3. Move during cooler hours
  4. Find water as absolute priority
  5. Wear light colors to reflect heat
10 Desert Survival Tips

Windy Conditions

Killer: Wind chill (wind increases heat loss dramatically)

Survival Strategy

Break the wind. Wind magnifies cold. A 30°F day with 20 mph wind feels like -10°F (wind chill). You need shelter that breaks the wind.

Find or create windbreak:

Layer clothing: Wind can find gaps in single layers. Multiple layers trap dead air (the actual insulation).

Keep humidity down: Wind evaporates moisture, including from your skin and breath. This increases heat loss.

Key steps:

  1. Identify wind direction
  2. Build shelter on the downwind (protected) side of terrain or trees
  3. Create windbreak using packed snow, logs, or branches
  4. Layer clothing
  5. Limit exposed skin
Danger of Wind Chill

Water Conditions (On or At Water)

Killer: Hypothermia, drowning

Survival Strategy

Assume water rescue isn’t coming immediately. Your priority is staying afloat, staying warm, and signaling rescuers.

If in water:

If capsized:

If stranded on shore/island:

What to do if Your Boat Capsizes Water safety and rescue procedures.