Be2 Camp Nbt
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Transcript of Be2 Camp Nbt
Sustainable Building
(How are we going to do that then?)
Matt Robinson
Step Change
Today
2016
Is Zero truly 0 ?
• What if we use a lot of
energy and create a lot of
pollution to do ‘Zero’?
• What if ‘Zero’ doesn’t exist?
Is there a ‘sweet spot’ just
below ‘Zero’?
If I was to go there, would I start here?
UK Construction industry 2008
UK Construction industry 2016
Inertia and Resistance– Massive lack of knowledge and
mis-information
– Very poor standards of
construction (50% of new
builds miss standards by up-to
50%)
– Centered around trades, not
buildings
Inertia and Resistance• Really Sustainable?
– Greenwash
– Theory vs Reality
– Offsetting is B*ll*cks
• Who checks the claims?
Eco-Bling and Sexy Technologies
• Some Eco-Technology• Under delivering• Poor Value• Maintenance cycles• Increase in costs
Eco-clichés get in the way of good, efficient and truly environmental solutions.
Howard Liddell
Gaia Architect
There is Another Way!
We have the solutionsWe have the knowledgeWe have the research
We have the built case-studiesIts been done before
(Look over the North Sea at our neighbours...)
What proof do you need?
VS
I thought we were European!
(cost, time, delay, hassle....)
(And more..)..
Where are the savings?• Clear that space heating and DHW
are the key areas• Lights, appliances and cooking are
'simple'
What about the ‘Old’ houses?
• Renovation is harder still!• Massive issues of
•Planning•aesthetics•education •perceived costs
‘Thermal Coherence’ = Low Energy
• Low U-values• Low psi/Y values• Superb airtightness• Thermal response• Decrement delays
and ‘active’ U-values.
CSH 3 homes at Bladon – Kingerlee and NBT
Passive solar works only on low energy builds
• Passive Solar design– Orientation– Shading– Glazing– Sun Spaces
= light and heat
(Can you stop orientating the building round the car-park please?) Images: Greenspec
Manage moisture• 75% of building decay due
to water• Reduces insulation value• Massive health issues to do
with moisture/humidity
– Stop it getting in, design for it to get out again.
Cut out the ‘crap’• Eliminate the toxins and
chemicals– Real lack of disclosure over
chemicals and toxins in many products
• We are running out of resources anyway!
• Natural materials and finishes
‘Breathing walls’ and Ventilation• Breathing walls and
hygroscopic materials to help manage humidity
• Ventilation (passive or MVHR) for clean air and manage humidity and toxins
• No AirCON
Make it ‘buildable’• Complex construction
systems = – Mistakes– Expensive– Lower performance
• Simple, solid wall & external insulation is the future (and the past and present)
Effective use of Technology10% of 100kw/h of energy
need?or
10% of 40kw/h of energy need?or
Problem properties
• Smaller heating systems, less cooling need• Lower load• lower peak demand
Change:- Its not (just) Architects...
• Supply chain delivery• Certification processes• Training in ALL parts of
the industry• New design and
aesthetics (*waves bye to bricks*)
• Site organisation – shell building
• From liability to responsibility
• Financial and insurance drivers
• Home owner education
Holistic Solutions(I sound like a hippie!)
• Energy• Carbon• Resource• Building Fabric• Human Health• Deliverability• Durability
Its a Team Effort• Client• Architects• Planners• M&E• Structural• Building Control• Contractor• Subbie
They need to understand all this
(and more)
Is this where Web 2.0
fits in?