Florence Codjoe, spokesperson for the firm said: “Experts at glass repair company, Speedy Glass, state that putting boiling water on a frozen windshield will not cause the windshield to immediately shatter. However, it can cause small cracks to appear.
“Vehicle windshields are constructed using laminated safety glass, which is a piece of polyvinyl butyral between two or more pieces of glass.
“However, there is a good chance if your windshield has a small chip or crack, some of the vapour or liquid may seep into the opening.
“When refreezing happens the liquid will expand causing the glass to separate into a crack, which will then gradually expand.”