Different types of codes are found in American Standard for Testing Materials and Indian Standard for water absorption test. According to ASTM C373, standard water absorption on non-porous tiles is 0.1-0.5% whereas the porous products can expose water absorption in the range 9-15%.

Purpose of the Test

To ascertain the proportion of water absorption of roofing tile.



  • Balance or scale, of sufficient strength, appropriate to weigh correctly to 0.01 g.
  • Oven, subject to retain a least temperature of 150 C.