Which construction type is defined as having a life expectancy of more than 2 years but less than 10 years?

The correct answer is that a construction type defined as having a life expectancy of more than 2 years but less than 10 years is classified as a semi-permanent standard.

This classification reflects the durability and intended lifespan of the construction type. Semi-permanent standards are designed to last for a significant period—beyond the immediate use but not indefinitely—providing a middle ground between temporary and permanent solutions.

In contrast, permanent standards are built to last beyond the 10-year mark, showcasing resilience and long-term utility. Temporary standards, on the other hand, are constructed for short-term use, typically lasting less than 2 years. Initial standards may refer to types of constructions that are at the beginning of their life cycle but do not specify a lifespan duration that fits the criteria outlined in the question. Thus, semi-permanent standards are the most accurate category for constructions that meet the specified lifespan of over 2 but under 10 years.