Disasters, Insurance, and Human Response Study Notes

Overview of Disasters

• Discussion of disasters, insurance, response, and recovery.

Types of Disasters

• Natural Disasters: Major concerns include:
    - Hurricanes
    - Flooding
    - Tornadoes
    - Earthquakes
    - Fires
    - Pandemics

Hurricanes

• Characteristics of hurricanes:
    - High Wind Speeds: Strong winds cause destruction.
    - Flooding: Comes after hurricanes due to rainfall.

Data on Hurricanes

• Provided by the National Oceanic and Atmospheric Administration, it shows an upward trend in the number of storm occurrences since 2020.
• The potential area of damage caused by hurricanes is much larger than tornadoes.

Personal Experience Example: Hurricane George

• The speaker recounts an experience in Puerto Rico during Hurricane George, a Category 4 storm.
    - They observed significant wind damage, such as a piece of tin shearing off a power pole.

Video Example of Hurricane Damage

• Showcases a house that survived the storm due to better construction practices that added 15-20% cost.
• A lot of surrounding houses were damaged or destroyed, highlighting the implications of building resilience.

Hurricane Harvey Example (2017)

• Caused significant flooding in Houston, despite relatively low wind damage.
• Community response included volunteer rescue efforts (Cajun Navy).
• Aftermath involved debris management and structural assessments.

Flooding

• Damage from hurricanes often exceeds that from wind due to flooding.
• Critical to remove drywall to prevent mold, keeping exposed wood structure dry below 19% moisture to avoid decay.

Floodplain Building Practices

• Options include:
    - Houses on Piers: Elevates homes to prevent flooding.
    - Compensatory Fill Requirements: Required when constructing in a floodplain to ensure floodwater management and prevent increased flooding elsewhere.

Dehumidification Process

• Use of dehumidifiers and blowers for drying walls after flooding before repairs.
• Importance of letting wall cavities dry out to prevent structural decay.

Tornadoes

• Tornadoes characterized by extremely high winds (EF scale from 0 to 5).
• Example: 1999 tornado in Oklahoma, with recorded speeds up to 318 mph.
• Community rebuilding and preparedness strategies discussed.

Fortified Home Program

• A program aimed at creating houses resistant to natural disasters, emphasizing constructs beyond minimum building codes. It’s backed by the Insurance Institute for Business & Home Safety.

Earthquakes

• Mention made of construction adaptations necessary for earthquake resilience.
    - Strong wall reinforcements and base isolation methods are critical in minimizing damage during seismic activity.

Base Isolation Technique

• A method that separates a building from ground motion during an earthquake, reducing the shaking experienced by the structure.

Fire and Wildfire Management

• Limited options for wildfire impact prevention. Successful defenses include landscaping and structural modifications (e.g., sprinklers, metal roofs).
• House Fire Causes: Common causes include cooking accidents, electrical failures, careless behavior.

Wildfire Preparedness Example

• Features a house that is resistant to wildfires through defensible space, metal roofs, and sealed vents to prevent embers from entering.

Pandemic

• Discussed as a unique disaster that affected housing preferences, leading to increases in demand for homes with more outdoor space.

Waffle House Index

• An informal measure of disaster impact based on the operational status of Waffle House restaurants relative to storm severity.

Home Insurance Overview

• Two primary forms of homeowners insurance:
    - HO-2 (Broad Form): Covers specific named perils.
    - HO-3 (Special Form): Covers all perils except those specifically excluded.

Exclusions in Insurance Policies

• Important exclusions noted in the HO-3 policy, such as floods, earthquakes, and government action.

Understanding Flood Insurance

• Separate purchase indicates necessity for flood-related damage coverage beyond homeowner's insurance.

Ethical and Psychological Implications of Disasters

• The way communities respond to disasters, housing decisions influenced by affordability, and individual situations during recovery.
• Example shared of Francisco, a homeowner repeatedly impacted by flooding, emphasizing the emotional ties to home despite risks.