Flat roof penetration for wire. Here is the detail box. Jared Twomey Supporting Founder. Find out more about the 8 steps to a Perfect Roof at www. Thanks guys. Your name or email address: Training sessions are often available through webinars, or PowerPoint and hands-on presentations offered at distributor dealer trainings, trade shows, as a part of This damage free mount does not require any lag bolts and will create less landlord permission issues. With help, you can sometimes fish a coax through a small hole in this vent. Inside the attic, strap the condiut to the rafter. As it it cutting part way through, tilt the hole saw, until it is plumb. What steps should specifiers take to ensure that penetrations are correctly installed on site? Submit Request. Know Your Composition Roof.