Zurn Z100 15-In. Roof Drain Installation Inverted Roof With A Steel Deck

Inverted Roof with a Concrete Deck

This page contains general installation information about the Zurn Z100 15-in. roof drain, and may not pertain to all situations. If you have questions, please call Hy-Tech at 800-635-0384.

Installation Diagram

Deck Type

Insulated Concrete Deck with Insulation

Membrane

Waterproofing Membrane

Drain Modifications:

• Underdeck Clamp (-C): Secures the drain to the roof and sump receiver.
• Roof Sump Receiver (-R): Square, flat steel pan that the roof drain sets in when mounted to the roof, it is normally secured underneath by an underdeck clamp.
• Vertical Expansion Joint (-XJ): Threads into the bottom of the roof drain to allow for expansion and contraction of the drain due to temperature.
• Zurn Ballast Guard Extension (-85): Also called a Perforated Stainless Extension, this goes under the clamping ring, and functions as an extension and gravel guard.