There is a large amount of water present in gypsum in the crystalline form and that’s why the individual molecules of gypsum are dry. As drywall gets hot, the water crystals begin to destabilize and begin vaporizing as the water reaches its boiling point. The evaporating water crystals keep the drywall cool, protecting the structure behind it. Drywall slows down the spreading of fires. This greatly aids in the containment of fires in your home or office. The safety benefits of drywall alone make it well worth the cost, which is already low! Drywall can slow down a fire and potentially save your home or office from further damage. Furthermore, it may even aid in the saving of the most precious commodity on the planet, life. Always call a credible company for drywall installation and repair service.