Airtightness

Larch Corner, a record-breaking timber frame Passivhaus
Larch Corner
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One of the most airtight buildings in the world, Larch Corner is almost entirely timber-based above its slab. That includes the insulation and cladding: it's a cosy Passivhaus that truly is a forever home for the client and his family.
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A Passivhaus haven of timber tranquility
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A timber-framed Passivhaus in Warwickshire, Larch Corner boasts some truly impressive credentials. Mark Siddall, of architecture practice LEAP, took on a challenging project and delivered an extraordinarily efficient building. It is 195 times more airtight than 2023 UK building regulations require. It is also a haven of timber-based tranquillity –...
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Improving thermal performance of existing timber frame buildings
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Read the outlines and options that will help improve the thermal performance of existing timber frame buildings.
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Designing for building performance
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Learn about building performace through: Thermal performance, airtightness and acoustic performance.
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