Fire-rated commercial roll up garage doors are preferred by companies that maintain warehouses for their business. The difference between these doors to those that are not fire-rated is its ability to close and choke the fire raging within by cutting off its oxygen supply from outside. Aside from preventing the spread of fire, these steel doors will buy everyone ample time to find the designated exits and the means to control the damage. Business complexes that have a number of buildings standing next to each other will benefit from the installation of steel metal doors as one precaution for fire emergencies.

To keep these metal doors performing well, an annual inspection must be conducted. Check for boxes or items that could prevent its auto-close feature from working smoothly. Any paint on hinges and moving parts must be dissolved and cleared. An attempt to subject these doors to official testing must be done under the expertise of a skilled person. The same goes for finding out whether or not the constant use had resulted to missing screws, locksets and other devices. Keeping your steel doors in good working condition will indeed serve you well especially in times of fire when you need it most to work.

Source: http://www.mcdoorgroup.com/index.php/component/content/article/2-news/42-fire-door-maintenance