A 4m x 50m flame-retardant screening material (certified to LPS1207 standards) is an extra-wide, heavy-duty protective poly sheeting engineered for creating large-scale temporary dust partitions, site containment walls, and environmental barriers. Formulated with flame-inhibiting additives, it complies with strict fire safety regulations required for working in live commercial buildings, public spaces, and industrial environments. Supplied multi-folded on a 1m or 2m core roll for manageable handling, it unfolds to a full 4-meter height to cover floor-to-ceiling spans in high-bay spaces and open site enclosures.