Installation Guide

How to Install the Screedex® Mortar Bed Screed System

Follow this step-by-step guide to build mortar beds that are accurate, compliant, and faster to install
— every time.

Steps & Process

Positioning Screedex® platforms around perimeter and floor drain

Step 2 — Position the Platforms

Applying adhesive to secure Screedex® platforms to the subfloor

Step 3 — Secure Platforms to Subfloor

Adjusting platform heights to create a slope to drain

Step 4 — Set Your Slope Heights

Checking mortar bed slope with a spirit level, or laser level

Step 5 — Verify Slope Accuracy

Screedex® wire mesh support — clips onto platform to hold reinforcement above subfloor in mortar bed

Step 6 — Add Reinforcement Supports

Screeding a mortar bed with Screedex® — using platform tops as leveling guides

Step 7 — Install Mortar Bed

FAQs

Does Screedex® help installers meet U.S. building codes?

Yes. It supports:

How does Screedex® prevent water ponding?

By ensuring consistent, slope-accurate prep, Screedex® eliminates the cause of ponding from improper drainage.

Ideal for:

  • Shower pans & bathrooms
  • Rooftop terraces
  • Balconies & pool decks
  • Commercial wet area
What tools do I need?

Just the basics:

  • Adhesive (see below)
  • Spirit level, string line, or laser level
  • Optional: Drill with hex bit for quick height adjustments


What adhesive should I use?

Use one of the following for a secure bond:

  • Moisture-curing polyurethane sealant
  • Cement-based tile adhesive
  • Moisture-resistant double-sided tape
Do I remove Screedex® after screeding?

No. Screedex® is a permanent part of the mortar bed. Removing it compromises the slope and structural reliability.

Need a Copy On-Site?

Download the full Screedex® Installation Guide

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Product Disclaimer

This guide is for general installation support. Always follow relevant local building codes and industry standards. Screedex® is not liable for misuse, improper installation, or outcomes beyond our control.