Banding as fire clip?

Have been using this banding in larger trunking systems for several years now, we asked a Fire officer before using and he could see no reason as long as the fixing was of a heat resistant nature. We solely use the wall dog style screw now and have never been pulled up on any installations. However, if there is a manufactured clip for a containment system we will revert to those instead of the banding. When fixing onto timber we were advised to use a longer than usual length screw to allow greater hold time in the event of the timber being on fire. 

Have been using this banding in larger trunking systems for several years now, we asked a Fire officer before using and he could see no reason as long as the fixing was of a heat resistant nature. We solely use the wall dog style screw now and have never been pulled up on any installations. However, if there is a manufactured clip for a containment system we will revert to those instead of the banding. When fixing onto timber we were advised to use a longer than usual length screw to allow greater hold time in the event of the timber being on fire.