Complex sentence: Water losses that affect only part of a room or area, or losses with lower permeance/porosity materials (e.g., plywood, particle board, structural wood, VCT, concrete).
Split into simpler sentences: Water losses that affect only part of a room or area, or larger areas containing materials that have absorbed minimal moisture. There is moisture remaining in structural materials (e.g., plywood, particleboard, structural wood, concrete).