The age of a roof significantly influences whether to opt for minor repairs or a complete replacement. Typically, materials like asphalt shingles have a lifespan of 20-30 years, while metal roofs can extend up to 70 years. If a roof approaches or exceeds its expected lifespan, minor repairs might not suffice to ensure its integrity and functionality. In such cases, a full replacement is advisable to prevent more extensive damage and higher costs in the long run. Therefore, the roof's age is a crucial determinant in the decision-making process regarding its maintenance or overhaul.