Colin King - Unintended Conesquences in Traditional Buildings 06/03/2014

50 %
50 %
Information about Colin King - Unintended Conesquences in Traditional Buildings 06/03/2014

Published on March 6, 2014

Author: BREGroup



Colin King of BRE Wales gave this presentation at a session with the Sustainable Traditional Buildings Alliance (STBA) at the Ecobuild Retrofit Theatre on 6 March 2014

Unintended consequences in Traditional Buildings EcoBuild 6th March 2014 Part of the BRE Trust

#brelive Content – Unintended consequences classification – The current state of the industry – The risks of not changing current practice

#brelive Treated the same - when it should be different Courtesy of J Edwards CADW Treated differently - when it should be the same

#brelive Treated the same - when it should be different Courtesy of J Edwards CADW Treated differently - when it should be the same

Classification of Unintended Consequences

#brelive Classification – Systemic - created by the current approach to surveys, testing, and material choice – Design – the introduction of cold bridges, failure to consider ventilation requirements, wrong selection of materials. – Behaviour – the influence of the occupant on internal environments

#brelive Unintended consequences – Current assessment indicates up to 74 unintended consequences probable. – Ranging across the spectrum from health, decay I materials, lack of performance, increased risk of problems where none previously existed.

#brelive Current calculation procedure – Steady state – General weather data – No consideration for wind driven rain – No measurement of Rh of the existing wall – Limited evaluation of the actual wall construction.

#brelive Water content and hygrothermal performance

#brelive Glaser profile through wall

#brelive Three winter days 10 Temperature : C 5 Surface temperature Air Temperature 0 -5 -10 -15 -20 31-Dec 1-Jan 2-Jan

#brelive Three summer days

Current state of the industry

#brelive Workmanship issues

#brelive Industry standard details



#brelive Quality control on site

The risks of not changing

#brelive Analysis of previous projects – The properties within this original work consisted of a number of construction types, but all of solid wall, and a 3 build forms, houses, bungalows and flats, with 45% (75) being bungalows, 20% flats (32) and 35% (60) houses. – All off gas, all social housing

#brelive Roof ventilation restricted – Condensation where none existed before, no consideration of ventilation provided. – Buildings more air tight than before – Work poorly sequenced – Lack of detailed surveying before work undertaken

#brelive One scheme results – Total of 37 properties analysed, only EWI

#brelive Assessment – Process to decide that insulation is the right measure. Understanding risk, exposure, condition of wall. – Collection of the right data for the installers – Choosing the right system – moisture, condensation, wind driven rain, pollution, aesthetics including heritage

#brelive Systematic / Workmanship – Weakness in the system , over reliance on sealant – Insufficient checking of key stages – Poor installation – Lack of understanding on correct application

#brelive Final thoughts – Careful consideration of context – Whole house surveying, not just the element to be improved – Improved thought process on the links and connectivity between actions – Point of responsibility, Moisture or Thermal performance professional – The risks are too high to continue as normal

Add a comment

Related presentations

Related pages

Institute of Historic Building Conservation

Institute of Historic Building Conservation ... Colin King’s Ecobuild presentation “Unintended Consequences in Traditional
Read more

Energy Efficiency & Sustainability of Traditional ...

... without putting them at risk of unintended consequences. ... live research project into the energy efficiency of traditional buildings. ... Colin King ...
Read more

3 Old Building Energy Efficiency Research

09:40 100 unintended consequences of policies to improve the energy ... Colin King, Associate ... 13.30 The SPAB Building Performance ...
Read more

Moisture - SD Foundation

Colin King Associate Director, Building Research Establishment ... Floors in traditional buildings are moisture open. ... further unintended consequences.
Read more

Conference Report: STBA Responsible Retrofit Conference ...

Conference Report: STBA Responsible Retrofit ... Colin King telling delegates that there is no such thing as a standard building, and to employ somebody ...
Read more

Conference | Retrofit Live

External Wall Insulation in Traditional Buildings: ... Unintended Consequences Relating to External Wall Insulation, Colin King, BRE.
Read more

Building Techniques Books - Taylor & Francis

Building Techniques Books. ... Although traditional building accounts for approximately a ... Designing Out Unintended Consequences When Undertaking ...
Read more

Solid wall heat losses and the potential for energy saving

... Colin King and Tim Yates. ... Many traditional buildings ... Solid wall heat losses and the potential for savings ...
Read more