Outdoor sculptures, exposed to the elements, must endure various environmental challenges, including fluctuations in air pressure. These changes can affect sculptures differently depending on their materials and construction.

Metal sculptures, such as those made from bronze or steel, expand and contract with temperature shifts, which are often linked to air pressure changes. This thermal movement can cause stress over time, leading to cracks or warping if not properly designed.

Stone sculptures, like marble or granite, are less responsive to air pressure but can suffer from moisture penetration during low-pressure systems, which may lead to erosion or frost damage.

Modern sculptures often incorporate flexible materials or joints to accommodate these pressures, ensuring longevity. Artists and conservators also use protective coatings to minimize weather-related wear.

Understanding these dynamics helps in preserving public art, ensuring it withstands the test of time and climate.