What are the differences between composite and cast iron outdoor chairs in heat dissipation?

When choosing outdoor furniture, heat dissipation is a crucial factor for comfort, especially in warm climates. Composite and cast iron chairs behave very differently in this aspect:

Composite chairs:

1. Made from blended materials (wood fibers/plastic) that don't absorb much heat

2. Surface stays relatively cool even in direct sunlight

3. Lighter weight allows better air circulation underneath

4. Typically have more ventilation gaps in design

5. Won't get uncomfortably hot to touch

Cast iron chairs:

1. Metal construction absorbs and retains heat effectively

2. Can become extremely hot in direct sun (up to 60°C/140°F)

3. Heavy mass means slow cooling after heating

4. Often have solid designs that trap heat

5. May require cushions for comfortable seating in summer

For hot climates, composite chairs generally offer better heat dissipation. Their material properties and designs help maintain comfortable surface temperatures. Cast iron works better in cooler environments where heat retention can be desirable. Consider your local climate and intended use when choosing between these materials for your outdoor space.