One of our Build Better Crew members was saying she wished contractors understood this detail better because she can't coach them during the inspection. So we created this video in our Crew Meet Up so that she can just direct people to the YouTube video and maybe that will help improve their field work... and make her inspections run more smoothly. If this helps you, just go to our YouTube Channel and you will find this along with loads of other videos. we talk about Smoke barriers, L ratings, M ratings, rigidly supported, open versus closed, differences with aluminium pipes and conduits, continual point contact, the rigid supported elements, tips for special inspectors and so much more.