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BGC Ceramic Tile Floor Underlay is a specially-formulated fibre cement sheet. It’s designed as a stable substrate for slate and ceramic floor tiles, so you can install ceramic tile floor underlay over new or existing timber floorboards, plywood or particleboard flooring.

In dry areas, apply directly to BGC Ceramic Tile Floor Underlay for an impervious, easily-cleaned surface. In wet areas and anywhere subject to accidental flooding or watersplash, install a waterproof membrane between the underlay and your tiling.

Features & Benefits

What’s good about Ceramic Tile Floor Underlay:

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Specially-manufactured fibre cement sheet

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Excellent substrate for floor tiles, both slate and ceramic

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For dry and wet areas (see above)

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Can be applied to both new and existing timber floorboards, plywood or particleboard

Brochures

CTU Brochure
CTU Specification
Innova™ & BGC Fibre Cement MSDS
Innova™ & BGC Fibre Cement Product Range Guide

Size & Thickness

CTU Fixing

Use 2.5mm x 2.5mm underlay nails and follow the nailing pattern as per the diagram to aid correct installation. Nails must be at 150mm centres in the body of the sheet and 75mm centres around the perimeter. A nailing pattern is on the sheet. Nails must be a minimum of 50mm from sheet corners and 12mm from sheet edges.

For more detailed installation instructions, please download the Ceramic Tile Floor Underlay brochure.

CTU Joining

Join sheets on the centre line of the floorboard. Should be laid to run perpendicular to floorboards.

For more detailed installation instructions, please download the Ceramic Tile Floor Underlay brochure.

Tech Drawings

  • Sheet Layout

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  • Sheet Fixing

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  • Movement Control Joint

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  • Wet & Water Splash Area Detail

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Contact us to help you with your next specification of Innova™ and BGC Fibre Cement products.

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