If left unaddressed, thermal bridging creates condensation, increases energy demand and compromises insulation
One of the biggest challenges in retrofitting traditional buildings is thermal bridging, where heat escapes through materials with high thermal conductivity, such as steel, timber and masonry.
Even in well insulated buildings, thermal bridges can account for up to 30 per cent of heat loss. This inefficiency results in higher energy costs and increased carbon emissions. Additionally, cold surfaces increase the risk of condensation, which can damage structural integrity, particularly in traditional masonry buildings.
Governments in the UK and Ireland are tightening energy performance requirements. The UK’s Future Homes Standard, set to be implemented in 2025, mandates that new homes reduce emissions by 75 to 80 per cent. Ireland’s Climate Action Plan aims for a 51 per cent carbon emission reduction by 2030, with 500,000 homes upgraded to a B2 BER.
While initially targeting new-builds, this shift underscores the importance of high-performance retrofits, particularly as gas boiler bans for new homes are expected by 2027. Ensuring buildings meet these evolving regulations requires minimising thermal bridging.
Partel’s Alma Vert high-performance thermal bridging blocks
To achieve airtight and energy-efficient retrofits, architects must integrate solutions that address thermal bridging at junctions, window openings and structural penetrations:
- Thermal breaks: Introducing materials with low thermal conductivity at key junctions can significantly reduce heat transfer.
- Continuous insulation: Ensuring an uninterrupted thermal envelope, either internally or externally, prevents gaps where heat can escape.
Partel’s Alma Vert high-performance thermal bridging blocks provide an effective solution for mitigating thermal bridging in retrofits. These sustainable, structurally sound materials improve insulation continuity while preserving the architectural integrity of traditional buildings.
Addressing thermal bridging is crucial for meeting modern energy standards, preventing moisture-related damage and reducing heating costs.
By incorporating innovative solutions such as Alma Vert thermal bridging blocks, architects can align their retrofit projects with stringent government regulations while enhancing building performance and longevity.
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