Fire retardant spray treatments may be most common for wooden roofs. The treatment can also be brushed or rolled onto the roof's surface. A spray on roof treatment may be relatively inexpensive compared to sprinklers or alarms. These sprays can't prevent all fire damage; however, they may slow the spread and prevent greater destruction. The treatment can be effective for three to five years. The treatment may be combined with preservatives and stains to seal the retardant into the shingle. Chemical options include non-toxic and biodegradable solutions. Fire retardant sprays are easy to apply and quick to dry. Ask your insurance company if the application of a fire retardant can reduce your insurance costs. A fire retardant treatment may increase the value of your home should you choose to sell. For more information on fire retardant treatment, contact a roofing specialist.