What device is used to secure a waterproof membrane to the drain body?

The device used to secure a waterproof membrane to the drain body is the flashing clamp. Flashing clamps are specifically designed to hold the membrane in place, creating a watertight seal that prevents water from leaking through the drain assembly. This is crucial in roofing and plumbing systems where moisture control is essential for the integrity of the structure. By effectively securing the membrane, the flashing clamp ensures that water is directed properly into the drainage system, minimizing the risk of water damage or leakage in surrounding areas.

Other devices such as cement rings, support brackets, and drain covers serve different purposes in plumbing systems; for instance, cement rings may help with the physical installation of drainage systems but do not provide the same sealing capability for membranes. Similarly, support brackets are used for providing structural support rather than securing membranes, and drain covers are primarily protective components that prevent debris from entering the drainage system.