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While almost nothing is completely fireproof, metal siding is extremely fire-resistant. It’s non-combustible so while it may eventually melt in extreme temperatures, it won’t actually light on fire itself. This can add a layer of safety to structures that wood or vinyl siding can’t, making it attractive for industrial use. Metal siding can significantly slow down the spread of a fire, giving extinguishers and firefighters a much better chance at saving the structure and containing the blaze. 

Stucco is considered a type of cladding because it includes a built-in ventilation layer, a weatherproof membrane beneath that, and, often, a layer of insulation to improve building efficiency. The multiple layers of stucco—the scratch coat, the brown coat, and the finish coat—also create a more complex building membrane, so it’s more accurate to call it cladding. However, homeowners and contractors alike refer to stucco as siding.

The lifespan of siding ranges from 20 to over 100 years, depending heavily on the material, climate, quality of installation, and maintenance.

• Vinyl, Wood, and Aluminum: Typically last 20 to 40 years. Engineered wood may need replacement after just 20 years.

• Fiber Cement: Lasts around 50 years.

• Brick and Stone: These are the most durable, lasting for a century or more with proper care.

The longevity of any siding can be shortened if it's not properly maintained or if damage is not repaired promptly. Regular cleaning is vital. It's time for a replacement when you see widespread damage, signs of water intrusion, or a spike in energy costs.

Stucco siding is the most energy-efficient option on its own, but you can choose insulated vinyl, insulated metal, or insulated brick or stone facade siding that improves energy efficiency even further. These options include a layer of foam insulation under the siding to reduce heat transfer between your living space and the exterior. If you live in a particularly sunny climate, a reflective option like insulated steel or aluminum siding can maximize efficiency.