This standard specifies the requirements for materials, manufacture, dimensions, physical properties, and testing of concrete interlocking roofing tiles. It aims to ensure the quality, durability, and weather resistance of tiles used for pitched roof coverings.
Specifies requirements for concrete interlocking roofing tiles.
Quick Reference Values
Minimum transverse breaking load900 N
Maximum water absorption10 % by mass
Permeability test requirementNo water leakage on underside after 24 hours
Tolerance on overall length/width± 5 mm
Tolerance on thickness± 2 mm
Practical Notes
Tiles are brittle; handle with care during transport and installation to avoid chipping interlocking joints, which is crucial for water tightness.
Efflorescence (white powdery deposit) may appear on new tiles but is typically a temporary aesthetic issue and not a structural defect.
Strict adherence to the manufacturer's recommended headlap and sidelap during installation is critical to prevent leaks, especially in areas with heavy rainfall.