---
title: Zurn Z100 Thick Concrete Deck Installation
description: This page provides installation information for the Zurn Z100 roof drain on a thick concrete deck with insulation.
---

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# Zurn Z100 Thick Concrete Deck Installation

Thick Concrete Deck with Insulation

*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

![zurn-z100-installation-thick-concerete-insulation](https://resources.hy-techroof.com/hs-fs/hubfs/zurn-z100-installation-thick-concerete-insulation.webp?width=500&name=zurn-z100-installation-thick-concerete-insulation.webp)

[![image of blue zurn roof drain with text "zurn roof drains & replacement parts find and buy online"](https://no-cache.hubspot.com/cta/default/10783/dd59a7a6-a93c-475e-a021-79d328357d56.png)](https://cta-redirect.hubspot.com/cta/redirect/10783/dd59a7a6-a93c-475e-a021-79d328357d56)

## Deck Type

- Thick Concrete with Insulation

## Membrane

- Waterproofing Membrane

## Drain Modifications: 

- **Underdeck Clamp** (**-C**): Secures the drain to the roof and sump receiver. 
- **Static Extension** (**-E**): Raises the height at which the drain clamping ring attaches.
- **Adjustable Extension Assembly** (**-EA**): Allows for more than 2 inches of adjustment for varying insulation thicknesses. 

## Drain Specifications

- [Zurn Z100 15 In. Roof Drain Specs & Options](https://resources.hy-techroof.com/zurn-z100-15-inch-roof-drain-specs-and-option)

 

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  **10035 Broadview Road,   
  Broadview Heights, OH 44147  
  [info@hy-techroof.com](mailto:info@hy-techroof.com)

[800-635-0384](tel:8006350384)

**Hy-Tech Products  
**10035 Broadview Road,   
Broadview Heights, OH 44147  
[info@hy-techroof.com](mailto:info@hy-techroof.com)

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