When a building is altered or extended in height, how many types of construction are there for classification purposes?

For classification purposes, there are indeed five types of construction when a building is altered or extended in height. This classification is essential for determining the various requirements for building safety, fire resistance, structural integrity, and compliance with building codes.

The five types of construction are categorized based on factors such as the materials used (e.g., wood, steel, concrete) and the level of fire resistance provided. Each type outlines specific criteria that affect how a building is constructed and subsequently altered or added to. Understanding the nuances between these classifications is crucial for building inspectors, as it helps ensure that any modifications adhere to regulations, maintain safety standards, and meet the needs of the building’s intended use.

This classification system allows for systematic assessment and regulation of buildings, particularly as they undergo changes, ensuring that the alterations made do not compromise the overall safety and compliance of the structure.