Remodeling or demolition often cause the release of asbestos fibers. To discover whether you have an asbestos problem, you must first determine whether the material in question is releasing asbestos fibers. The best way to have this done is to have a state health agency or a reliable testing company take a sample for you and have it analyzed. You may have asbestos-containing substances in your home or office, especially those built before 1978. To be certain, however, you may want to have the materials inspected, and, if necessary, repaired or removed.
Repair usually involves either sealing or covering asbestos material.
This process is only effective for undamaged asbestos-containing substances. If materials are soft or crumbly or otherwise damaged, sealing is not appropriate. Covering involves placing something over or around the material that contains asbestos to prevent release of fibers. Asbestos removal is an expensive and hazardous process and should be a last resort. Situations where removal may be required including remodeling, major structural changes, and if the asbestos material is damaged and can not be otherwise repaired.