ProTile20 – 20mm Cementitious Insulation Panel for Underfloor Heating & Tiled Floors

ProTile20 is the ideal low-profile insulation solution for installing water underfloor heating systems over existing floors. With only 20mm total depth, it accommodates 16mm pipe at 150mm centres and features a thick, cementitious top layer that allows tile floors to be laid directly—no extra boarding required.

Designed for high-output systems, ProTile20 delivers fast heat transfer, excellent load resistance, and simplified installation using ThermRite Insulation Fixing Packs.

Key Features & Benefits:

• Low Profile Design – Just 20mm deep, perfect for retrofit and height-restricted spaces
• High Output – Thick cementitious layer and 150mm pipe spacing for rapid heat transfer
• Tile-Ready Surface – Cement layer allows direct tiling with no overboarding required
• High Strength – 300kPa compressive strength supports heavy loads and tiled finishes
• Quick Installation – Fix down easily with ThermRite Insulation Fixing Packs
• Compatible Pipe Size – Designed for 16mm underfloor heating pipes
• Ideal Applications – Bathrooms, kitchens, extensions, and retrofits

Click for: Product Installation & Data Sheet

Frequently Asked Questions

• What is ProTile20 used for?

ProTile20 is a cementitious insulation panel designed for use with underfloor heating systems. It’s ideal for installing directly onto existing floors, allowing tiles to be laid directly on top without the need for additional boards.

• What is the depth of the ProTile20 panel?

The ProTile20 has a low profile of just 20mm, making it a perfect solution for installations in spaces with limited floor height.

• What pipe size is compatible with the ProTile20?

The panel is designed to accommodate 16mm heating pipes, placed at 150mm pipe centres.

• Can I tile directly on ProTile20?

Yes, the cementitious surface of the panel is specifically designed to accept tile adhesive, allowing you to lay tile floors directly on top.

• What is the compressive strength of the ProTile20?

The panel offers 300kPa compressive strength, making it highly durable and capable of withstanding the load of tile floors and underfloor heating systems.