What are the DO´s when thinking about designing a passive house and using the whole-building system?
- consider the orientation of the building early in the design as this will affect the fabric performance
- keep the form of the house as simple as possible which will reduce cost.
What are the DON´Ts for the whole-building system in a passive house?
- design the house without using PHPP to model the energy flows
- over glaze the house so requiring expensive external mechanical shading devices always check if there are transport and access issues for delivering manufactured homes or modules to their intended site.
A ‘Whole-building system’ addresses the passive house 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.
Excerpt from “How to build a Passivhaus: Rules of thumb”, chapter by Kym Mead, Passivhaus Trust, April 2015.