Last edited 15 Nov 2019

Understanding Passivhaus - review

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'Understanding Passivhaus – a simple guide to Passivhaus detailing and design’ by Emma Walshaw of First In Architecture. Image: Emma Walshaw

Contents

[edit] Introduction

Given the sometimes intense debate on global warming which dominates the media, a book purporting to improve the energy efficiency of buildings – and therefore improve their carbon footprint – must be seen as a welcome addition to any library. When that book details the principles of an established and highly acclaimed system of building simply and effectively, it deserves even more attention.

'Understanding Passivhaus – a simple guide to Passivhaus detailing and design’ is written by Emma Walshaw of First In Architecture – an on-line resource comprising guides, downloads and articles for architecture students and professionals.

Passivhaus is the low-energy design standard for buildings that are comfortable to live with minimal carbon-emissions. It is claimed to be the fastest-growing energy performance standard in the world.

Launched in 1996 by the Passivhaus Institute, Passivhaus buildings now cover residential, educational, social housing and retrofit projects. The principles have been applied on a global basis – an indication perhaps of the relative ease with which the standard can be adapted to suit local climates, materials and methods of construction.

In the introduction, Walshaw sets out the broad-brush principles of the book:

Demonstrating the clarity and simplicity of layout that is to follow, the book is divided into two broad sections: details and case-studies.

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Image courtesy of Emma Walshaw.

[edit] Details

In the first sectionDetail’, the reader is taken through an exhaustive explanation of the possible construction methods which can achieve the Passivhaus standard requirements. Illustrated with simple, clearly-legible diagrams, this section should be accessible even to lay people. It is an easy read – and no less rewarding for it. Indeed, much can be learned about detailing just by studying the diagrams – and this serves as an enticement into the text which is written in concise, plain English.

This section includes the certification of buildings, their components and the designers and consultants that are part of an independent process to formally assess and approve a project.

[edit] In principle

The crux of the book is the section dealing with Passivhaus principles, putting everything else into context. As with the rest of the book, this section is broken down clearly into its constituent elements:

An array of generic construction details follow which achieve the Passivhaus standard. This includes junction details for floors, walls, window heads, sills, jambs, parapets and roofs (pitched and flat) in constructions such as solid concrete, insulated concrete formwork, solid masonry, timber frame or SIPS. All are generously illustrated with sympathetically-rendered colour diagrams.

The final section of the book features case studies of finished projects which have been built according to Passivhaus standards and includes photographs, plans, sections, elevations and details. The projects depict an architecture that is stylish and sustainable, providing a comfortable home with low running costs.

Understanding Passivhaus has 140 information-packed pages – much to read and absorb. But given the topicality of the subject and the fact that it is likely to become even more critical in the coming years, the book will make a valuable addition to any construction library.

More details on Understanding Passivhaus can be found HERE.

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