Complex sentence: If fire safety is a concern, ceiling tiles made from mineral fibres can be used to meet fire safety ratings; many of them also provide additional fire resistance in order to meet the'time rating' or "fire rating" required by building regulations.
Split into simpler sentences: If fire safety is a concern, ceiling tiles made from mineral fibres can be used to meet fire safety ratings. Many of them also provide additional fire resistance in order to meet the "time rating" or "fire rating" required by building regulations.