Segmentation by type classifies Drainage Membranes into five material families, each influencing market dynamics through performance, cost, and regulatory acceptance. HDPE (high‑density polyethylene) membranes lead the segment with the highest market share, valued for chemical resistance and long‑term durability in high‑pressure environments. PVC (polyvinyl chloride) follows, offering flexibility and lower upfront costs, making it popular in residential and light‑commercial projects. Geocomposite systems, combining synthetic fabrics with drainage cores, command premium pricing due to superior filtration and load‑distribution capabilities, especially in infrastructure applications. Bentonite‑based membranes provide self‑sealing properties for groundwater protection, attracting niche use in environmentally sensitive sites. Polypropylene membranes, noted for lightweight handling and resistance to UV degradation, serve specialized agricultural and temporary construction needs. The relative contribution of each type to total market value is shaped by regional construction standards, project scale, and lifecycle cost considerations, together forming a comprehensive market taxonomy.