Whole-building systems

Whole-building systems

A ‘Whole-building system’ addresses the Passivhaus criteria and performance requirements by providing all parts of the system needed to create high levels of thermal comfort and good air quality. This can ensure that the building specification has been thought about at an early stage ensuring that design and performance backstops are integral to the building conceptual design.

Passivhaus encourages designers to address all aspects of the design at an early design stage, including the types of materials/systems that will be used. A wholebuilding system approach i.e. one where the materials have been pre-selected and developed into a holistic system, can help designers make their design decisions with confidence that the final outcome will meet the Passivhaus requirements. This chapter highlights the key areas that should be addressed when adopting a wholebuilding system approach. 

Overall, a whole-building system approach can assist with meeting Passivhaus requirements, particularly as the pre-fabricated components should have good performance characteristics and their use can reduce construction time, resulting in lower...

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Passivhaus encourages an approach to design which considers the building as an interconnected whole. Holistic concepts should be applied to the orientation and form of the building, as well as the design of mechanical services and fabric...

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Always check if there are transport and access issues for delivering manufactured homes or modules to their intended site.
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Over glaze the house so requiring expensive external mechanical shading devices
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Design the house without using PHPP to model the energy flows
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Keep the form of the house as simple as possible which will reduce cost.
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Consider the orientation of the building early in the design as this will affect the fabric performance
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Comprises 142 or 172 mm thick structural insulated panels (SIPs) connected with a unique jointing system for walls and roofs, and intermediate floors using I-beams or open web joists.

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Featured project:
The Greenhauses, London