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Metal roofs have several disadvantages： Higher costs in the upfront. With potentially noisy during heavy rain or hail. They may also require more complex installation by skilled labor, leading to increased labor costs. Maintenance can be challenging, especially with large panels, and there’s a risk of leakage if not properly installed. Metal roofs can expand and contract with temperature changes, which might cause warping over time. Despite these disadvantages， metal roofs also offer durability, and energy efficiency function， and are environmentally friendly.