In just a few moments, you will see a video load to your right.  This video demonstrates how PVC membrane material keeps fire from continually spreading unlike TPO and EPDM.  You will notice as soon as the torches are pulled away from the material, the PVC extinguishes itself unlike the EPDM and TPO.  They continue to burn until all the material is gone.  This is a scary thought if your entire facility is covered in TPO or EPDM material.  If you would like to return to the previous page, click here.