Excel-tone MR in all thickness,
shall have neither sagging nor warping over
allowable limits and it is warranted to be free of defects directly
attributed to the manufacturing faults for the period of 10 years from
the date of installation of ceiling board with the conditions below:
1. Installation shall be done in areas free from excessive humidity,
chemical fumes, freezing temperature and vibration.
2. Installation shall be done under the conditions of the temperature
and relative humidity ranges 10 to 50 degree celcius and
less than 80% respectively.
3. The ceiling board shall not be affected with direct moisture such as
leaks or condensation during and after installation.
4. Prior to installation the ceiling board shall be stored in a dry and
clean area, enclosed and protected from possible damages by rain, and
excessive moisture, and also protected from possible impacts and
kept at least one meter off walls.