Do I need Mechanical Ventilation with Heat Recovery (MVHR) with a SIP building, or can I rely on natural ventilation?
Ventilation requirements are governed by Building Regulations and your project’s airtightness performance. The choice between MVHR and natural ventilation will depend on the air pressure test result and the preferred ventilation strategy for the building.
Whether a building requires Mechanical Ventilation with Heat Recovery (MVHR) or can rely on natural ventilation is determined by Building Regulations and the overall airtightness performance of the building.
SIP buildings are designed to achieve high levels of airtightness, which improves energy performance but also means that a clear ventilation strategy must be in place.
The appropriate approach will depend on the air pressure test result for the building as well as the preferred ventilation strategy for the project. In many low-energy buildings, MVHR systems are commonly used to provide controlled ventilation while recovering heat from the outgoing air.
Your architect and building services designer will determine the most suitable ventilation strategy for your project in order to comply with Building Regulations.
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