Even though each scale represents a different specific temperature, the change in each represents the same quantity. This makes it nice when using equations that only utilize the change in temperature!

Thermal expansion is something that builders and engineers must be mindful of when constructing bridges, buildings, house siding, etc. Appropriate spacing must be left between adjacent materials to allow for material expansion and contraction due hot and cold temperatures.

How must we pay attention to thermal expansion when constructing siding on a house? What is a common design technique that is used in modern siding to allow for thermal expansion? Please provide us with a photo as well.