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Jon Davies
Jon Davies
on Airtightness and Moisture Management
Regional Manager

Jon is a qualified teacher and Regional Manager for pro clima, focussed on technical and educational support for the design community. 

18 April 2018

Where Does the Airtightness Layer Go?

airtightness boathouse

Getting layering right in New Zealand buildings for summer and winter.

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22 March 2018

The Dwelling as a System

kitchen home cooking blog

A dwelling should be considered as an integrated set of systems rather than a set of separate components.

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24 November 2017

Weathertightness Before and After Earthquakes

Detailed blog post image Jon Davies November

A dedicated weathertightness layer can help protect building frames after a seismic event — ensuring that water damage doesn't occur through minor cracks or damage. 

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25 October 2017

Balancing the Costs of Increased Building Performance

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The homeowner pays the upfront cost of a hypo-reactive building, or the ongoing costs of a hyper-reactive building.

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20 September 2017

Hydrosafe Value — What is it?

1709 Jon Davies Freddie Marriage

The hydrosafe value quantifies the level of protection for your construction against increased indoor humidity levels during the construction phase (building moisture).

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28 August 2017

Triple Connected Windows Part II

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It is very important that all aspects of the window are taken into consideration; frame system, double glazing, window size and the connections between the window and the wall.

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20 July 2017

Improving Thermal Performance with Triple Connected Windows

How to ensure standard thermally-broken windows are positioned to succeed.

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22 June 2017

Enclosing Insulation in Skillion Roofs

Full insulation performance can be achieved even when the 25mm air gap is eliminated.

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18 May 2017

Airtightness: Friend or Foe?

It's time to realise that lack of ventilation, not airtightness, is the new enemy.

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24 March 2017

What's the Use of Blower Door Testing?

How can we judge a building's performance when all testing methods have limitations?

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