MAXI F&R TILE could be told that change of the dimension by heat is so small  The method of test The outline of test The method of test JIS A 1454 Dimension test by heat Measure the dimension of MAXI F&R TILE after minimum12 hours at 20oC Lay MAXI F&R TILE at 20oC for a hour after heating in the oven at 80±2oC for 6hours. and then acquire the changed length by checking the dimension. This is a standard test for changed dimension. It is supposed that the above measuring range of 5oC 45oC is the lowest and highest temperature at a pffice in the deep of summer and winter. Even though MAXI F&R TILE is 40oC difference in temperature, You can fully sunderstand the fact that change of the size is less than 0.5mm  The method of test The outline of test The method of test JIS A 5705-1985 Measure changed dimensional quantity in accordance with changed temperature. After laying MAXI F&R TILE at constant temperature room maintaining 5oC for 2 hours, regard measured dimension as standard, and after laying it at each temperature, measure the difference between them. Dimensional stability by heating as non-woven glass fiber. In case of modification of wiring and reparing, it would be used with ease. Very small variation is allowed in thickness and verticality with advanced manufactureing process.