Ancon Teplo BF4 550mm Long by Ancon - A Leviat Brand

This Ancon Teplo BF4 550mm Wall Tie is a low thermal conductivity wall tie designed for cavity widths of 401–425mm. Made from pultruded basalt fibres, it combines strength, corrosion resistance, and durability while reducing heat loss.

With a conductivity of 0.7W/mK, this cavity wall tie limits thermal bridging and improves energy efficiency. As a U-value exempt wall tie, it supports insulation in wide cavities. Offering Type 4 performance, this model is suitable for buildings up to 10m high.

Key facts:

• Low thermal conductivity – excluded from U-value calculations
• Suitable for cavity widths of 401–425mm
• Pultruded basalt fibre construction for strength
• Reduces thermal bridging and heat loss
• Type 4 wall tie for buildings up to 10m

As part of the wider range of Ancon Wall Ties, this product delivers reliable masonry restraint while supporting sustainable construction. It is a proven option for Passivhaus and other energy-efficient projects.

Installation info:

Install ties at the required spacing. Ensure they are fully embedded in mortar joints for secure results.