Flat Roof Details Navigation Vent stack / cold roofVent stack (one-piece) with EVALON or EVALASTIC connecting flange. Optionally with weather cap.You are here: alwitra > Details > Mounting parts > Vents > Vent stack / cold roofTags dieses DetailsCold roof, EVALASTIC®, EVALON®, vent stackFilesYou need to login to download this detail in .dwg, .dxf or .pdf format.If you are already registered, you can use your old login credentials. Alternatively, you can register here for an individual login to all alwitra tools.Please login or register. Username or Email Password Remember Me Register | Lost your password?If you are using the login credentials of the former Flat Roof Details version, please enter all data in lower case only. Otherwise, please use your personal password.