Cladding Tee
The jacket over an insulated tee, equal or reducing: the run with the hole for the branch, and the branch cut to the saddle. The jacket over an insulated tee: the run’s jacket with the hole for the branch, and the branch’s jacket cut to the saddle where it meets the run, equal or reducing.
How the cladding tee is developed, with a worked example · Cladding