“So the AECB team looking at this is recommends that the carbon compliance level is set at 10-12 kgCO2/m2.a, for all dwelling types. The reasoning behind this is, that this level can be achieved with a highly efficient house heated with gas/lpg, without being forced to add in PVs, biomass or other bolt-ons.

The 10-12 kgCO2/m2.a level equates to an ‘emissions reduction’ from 2006 building regulations of about 50%. It recognises that the additional reduction we need as a nation is much easier to afford with large-scale offsite renewable plant, than on-site. So the idea is that the remaining carbon reductions to achieve the “zero carbon” target will be via “allowable solutions”, allowing the developer to invest in nation-wide offsite renewable generation, giving us all the best value for the developer’s money.”

I’d better go and catch up with their closing their ‘Closing The Gap’ (PDF) paper.

Perfect sense – that’s the very essence of Passivhaus thinking you might argue, its seemingly unarguable logic that simply asks that we build well insulated, draft free, carefully detailed, properly ventilated buildings. What’s not to like?

There are a full set of photos available on Flickr, more notes and audio in an Evernote folder (although the audio is too quiet unfortunately) and if that’s not enough there’s even a hand crafted booklet you can download and fold yourself thanks to bookleteer.com. Never let it be said that I don’t give value for money.

The trip began with a presentation on board the mothership – the Passivhaus Institute in Darmstadt. Our host talked us through the key principles of super insulation levels of below 0.15, super air tightness that allowed no more than 0.6 air changes per hour, super rigorous detailing that eradicated connections between the outside and the inside, super seductive triple glazing products and ventilation heat exchangers that performed at an efficiency that was, well, super. The examples shown to us offered timber frame construction for new build and wrapped existing buildings in a cozy blanket and all new air tight skin. The almost hermetically sealed results providing their inhabitants with a life free from cold and heating bills. We left shaking our heads at the insanity of the normal, slapdash world of construction then shook them again at the thought of the work in front of us required to fix it.

A trip to building membrane supplier Pro Clima came next. An impressively detailed, technical description of the science of moving moisture around the building proved to be the perfect accompaniment to the previous day’s discussion on air tightness. Stop the wind blowing in, but let the moisture out. Graph after graph and detail upon detail proved it beyond doubt, but you should never underestimate the value of the ‘you mean it’s a bit like Gore-Tex?’ moment to really convey the core principle.

Lothar Moll, Pro Clima founder, gave us a demonstration of their products and detailing recommendations allowing the geeks amongst us to stroke a few things and get up close. The gale blowing through the tiny punctures he made in the membrane for the final demonstration gave us further proof of the unassailable logic.

He made a passionate plea to use that same logic when considering whether to demolish or refurbish, pointing out that when you do the maths alone it often doesn’t make sense to retain existing buildings. A tidy balance sheet alone doesn’t necessarily make for a healthy society though, despite what our coalition might think.

On from there to some actual examples of Passivhaus buildings, with Ludwigshafen Brunck Quarter first on the list and a tour from the architects Luwogue Consult. A project that had created new build Passivhaus properties:

As well as refurbished existing dwellings:

A key feature worth noting here is the use of level changes and the acceptance of basement parking, lifting the floor slab and the tricky insulation details up out of the ground. Not so straightforward perhaps in a world of Lifetime Homes and Secured By Design guidelines here in the UK social housing sector, even if the rules have been slightly loosened lately.

Inside we found a sensibly laid out floor plan around a well placed service core and kitchen and a better finish quality to important elements like stairs then we might have found at home. The connection from kitchen and hall space to the stairs and first floor must surely create some noise problems though. The temperature? Warm. Everywhere. More on that later.

Next we visited Hoheloogstrasse and here felt the shame of our tardy arrival to the Passivhaus party as our guest seemed genuinely uncertain about what to tell us at first, given that we were making a fuss about a 5 year old project whose principles were now almost standard practice.

We’d spent hours being talked through the Passivhaus Haynes Manual and had poured over every component in this high performance machine for living in but that afternoon had been our first look at all the parts assembled and being test driven. The obligatory canter through the Top Trumps statistics had told us what we’d come to expect of the fuel consumption and efficiency, but what of the aesthetic? A pattern had been evolving in the images in the lectures and the previous project and Hoheloogstrasse continued in the same style.

Rendered external insulation that leaves little opportunity for relief or material change is perhaps the most obvious common feature and combined with the metal clad windows a somewhat industrial style ensues. There’s a more subtle issue here though that’s also a direct result of the science and it’s the simple fact that you can’t fix anything to, or through, the building. Projections – those parts of a building that hint at the heart of a structure and it’s spaces – become divorced from the main body of the architecture. The rigorous avoidance of any ‘cold bridge’ that might allow heat loss to seep out through a continuous material conducting warmth wastefully outwards results in the architectural equivalent of a restraining order.

Don’t touch me, says the increasingly uptight building, leaving balconies, canopies and even mail boxes to shiver in the cold. It was with some disappointment that our host had to acknowledge a small connection from the balcony structure to the building, included thanks to concerns about wind load, that resulted in a minor flaw in the thermal performance. A brief moment of almost Ballardian eroticism as the coming together of body and metal was acknowledged in slightly hushed tones.

I’m exaggerating to make a point of course but this seems significant. The insulation strategy predominantly used in this type/size of building combined with the casting out of architecture’s most fickle elements that usually flirt with both inside and out threatens to create a depressingly homogenous Passivhaus Style. However, a problem can soon become an opportunity once you’ve spotted it and I wonder about a future that capitalises on these issues and plays with the possibilities. An embracing of the stand-off facade that dances to its own tune in a manner not too dissimilar to the work of FAT perhaps? Or the suburban stage set imagined by Archigram?

On smaller scale buildings and simple masonry cavity construction the question of material choices should be wider though and the buildings listed in the UK Passivhaus Open Days this weekend certainly seem to provide some variety of language and vernacular. I’d be interested to hear from anyone who visits one. Then next week we’ll talk about that perfect temperature…

Vision-lozells.org represents my first attempt to get closer to the ideas in Dan Hill’s ‘Personal Well Tempered Environment’ concept and the subsequent notes in my own post, ‘Up On The Roof’. I’ve been collaborating with the guys at Slider Studio to develop the next stage in our investigations into online consultation work; but this time, by developing the platform they created for the self-build market, we’ve moved into the third dimension.

You know what I’m into. I want to start plugging it in to stuff. Getting data from the real world in and out of it. The notes below and the Ecobuild presentation I gave start to describe how we might do that using solutions most of you will know well.

I’ll be spending this weekend at our last public open day for ecoterrace.co.uk, followed by an event with the residents of blurtonvision.co.uk to start our version of the Open Street Map / public data mashup. Unfortunately this means I won’t be able to attend the Homecamp event on Saturday and get more connected with the folks developing exactly the ideas I’m pitching here. However I will be able to come along to the next Be2camp and do my bit to draw connections between the social bits, the media bits and the home bits. Come along and criticize/help.

BIM and Social Media

Axis Design and Slider Studio have created a new tool for Birmingham City Council called YouCanPlan Lozells. Slider’s ESP software has been resigned to suit the challenges of the diverse people and places of community consultation work. The software will be distributed via both CD and online to over 2500 households. It can be used both online and offline to ensure it can be used in any venue, but we hope that the benefits of the online mode means that people using it from home can make the most of both the live updates to proposals in the coming months, as well as using survey and chat tools to tell Birmingham City Council what they think about the designs being proposed by the city’s urban design team.

At its first public test during an event in the local park it was well received. In particular by the local teenagers who instantly took to the interface and chat tools. Making contact and building enthusiasm with the younger generations is often one of the biggest challenges with consultation work so in this case we hope that we’ve created something that will help us hear the voices of the future generations and perhaps bring some parents with them, curious to see what their children are using. Whilst the ability to consult with people from the comfort of their own home is huge step towards a more representative mandate from a neighbourhood, we’ve always described this as a tool to supplement the vital face to face debates that need to go on. With that in mind the software can be used in offline environments and the investment in 3D modelling can be used to produce rapid prototyped physical models that match the software .

What of the future and the implications for BIM? How can this tool help us manage data about a building or street? In its current format the model and software is a framework that can take inputs and changes in a top down fashion from stakeholders whose roles are well understood. It will receive new models and designs of steadily improving detail and can display images and links to other sources of info provided by local authorities and RSLs, but what of the community? How do we build a system that allows data rising from the streets – in a bottom up fashion – to manifest itself in the model and record live information about the neighbourhood. Our experience with web 2.0 tools and consultation work tells us that there are tools available to help us and they come under the title ‘social media’. Let’s look at a few examples and then imagine how YouCanPlan could use them to bring BIM, post-occupancy monitoring and community consultation together.

Pachube, developed by architect Usman Haque, is a service that aims to broker data for you. It takes information from physical objects that can record things, tidies it up, then spits out the results in a number of useful formats that you can plug into (or point at) another location. The simplest example is electricity meters. I have a meter at my office recording the number of kW used. It sends the info to Pachube allowing me to access it from anywhere and do anything with it. A number of visualisation methods have already been created by others, allowing me to either simply display the info online or feed it into other tools such as the AMEE carbon emissions calculator, letting me know how many tonnes (gulp!) of carbon I’m churning out.

Another social media tool that takes simple inputs and creates powerful outputs is Twitter. Unless you’ve been living under a particularly analogue rock lately, you’ll have probably heard of this web site. Twitter simply wants you to tell it what you’re doing. No, really, that’s it. Just tell it what you’re doing and do it within 140 characters. I’ve been using it for a couple of years for keeping in touch with like-minded architects and bloggers and more recently using it as a tool for dispatching the lyrics of one of my favourite bands one line at a time. Others, like Andy Stanford-Clark from IBM, have found ways to use it for recording more than just bon mots and satirical one liners. By plugging it into all the activities around the house Andy has found a way to make his home twitter. A live feed of building information as devices switch on, doors open and phones ring.

Mapping is an important part of information modelling; the data is most useful when tied accurately to location. However, mapping can be a prohibitive field as commercial restrictions can often make extensive availaibility and re-use of map information costly. Open Street Map allows us to avoid this problem by providing up to date maps that are completely free to use and adapt. The wikipedia of mapping, Open Street Map is by the people and for the people, created by volunteers with GPS devices all over the world. Its open source nature allows us to look at ways of combining the info with other tools such as phonecam sites like moblog.co.uk or flickr.com. Marking the position of a photo – an option increasingly done automatically by some phone models – allows us to track the latest events and activities in a neighbourhood visually. This has been succesfully developed, alongside other services such as planning alerts and transport links, by Tom Chance and Thomas Wood and their interactive map of Sutton.

Tools like these will turn platforms like YouCanPlan into a virtual environment augmented by reality. By allowing the model to plug into other information modelling systems the buildings will convey live information about the current state of a house or street or neighbourhood. The data shown in the model will help local authorties record and assess public information, and the residents will be able to keep in touch with the activities of friends and family and show landlords and local authorities what the most pressing issues are right now. The recording and public display of energy information for a household introduces the possibility of encouraged energy saving through competition. Who has saved the most money in the street this week? Who has created the most carbon?

The successful reduction of carbon emissions in the built environment to meet the targets of 2050 is entirely dependent on an improvement in performance informed by regular post-occupancy monitoring. BIM can continue to play a vital role in this process beyond the completion of the construction and there are powerful social media tools available to help make it happen. A creative approach to the field and an open mind to the power of open data formats will help the profession to share knowledge and avoid the usual debates about interoperability. We need to improve the communication between the designers and users throughout the life of the building, not just as we hand over the keys.

I’m particularly looking forward to the latter of the two as I’m hoping it will give me the chance to bring some be2camp ideas to a more mainstream (?) crowd.

See you tomorrow.

Here’s an interesting article on static caravan parks:

Trailers have long interested Morrish. He likes the simplicity of long, narrow, free-standing structures. Light and breezes come in from either side. If ceilings are pushed to 10 feet or higher, small rooms can feel much larger. And since most walls are exterior walls, the possibilities of adjacent gardens and indoor/outdoor spaces are many.

He had no quarrel, really, with the new urbanist movement. But stacking homes above retail shops along transit corridors can’t happen everywhere. Besides, there’s a “formula” to new urban design that doesn’t appeal to Morrish’s eclectic tastes.

And you thought I was kidding when I cited the caravan as fertile ground for housing ideas.

More from Morrish:

His new book, “Growing Urban Habitats, Seeking a New Housing Development Model,” will be out in June. It begins with a proposal to refashion an aging trailer park in Charlottesville, Va., and ends with a design that interlaces long, narrow structures that are affordable, sustainable and well-suited to the valley just below Thomas Jefferson’s Monticello estate.

“The project is fairly dense, but it doesn’t just stack units up into the air.”

Ok, point taken. I was exagerating for impact. Yet my drawing does rather neatly sum up the problem. Ask an architect about the opportunities for prefabricated housing and trailer park living and they’ll turn it into a building problem. A Rubik’s cube challenge of Lego-like simplicity.

As I said in the flickr comments for the image above, over at Axis we keep having conversations about housing models that get the balance right between independence and community/neighbourhood and we always end up at trailer parks. When those conversations turn into a live project we need to remember that this is a landscape problem, an infrastructure problem, a state vs. private, freehold/leasehold land ownership, territory problem. Not a building problem that’s solved with a crisp, cutaway axonometric.

Of course, although I’ve been quoted on the Building web site this week about the need to focus on existing housing, that doesn’t mean I’m not delivering new build as well. The trick is to make sure you’re getting that right too. It’s a modest scheme, there were some changes along the way, but I’m very pleased with the end result.
For the eco geeks among you these properties scored an ecohomes ‘exellent’ rating and a SAP rating of 87 – band B.

Further images and the original sketches are in a flickr set: Queens Road

Here’s the summary of the session:

Embracing the existing estate and communities

What’s already built is a much greater part of our built environment than new development. How do we tackle the existing estate to deliver greater sustainability in social, economic and environmental terms? A panel will discuss the issues generated and solutions required by outdated workplaces, ageing housing stock and the sustainability problems they cause. This will include a consideration or legislative hurdles in tackling the built stock as well as a live example of green refurbishment work being carried out on Victorian properties in Newcastle-Under-Lyme.

Chair: Denise Chevin, Editor, Building
Kate Symons, Associate Director, Building Research Establishment
David Strong, Chief Executive, Inbuilt Consulting,
Rob Annable, Director, Axis Design Architects
Dr Douglas Robertson, Head of Applied Social Sciences, Stirling University
and Joseph Rowntree Foundation
Roger Hawkins, Director, Hawkins Brown

And here’s the PDF of the full program: Think08 program

If there are any fellow bloggers attending on the Wednesday it would be great to meet up, so drop me a line!

If that’s the case, then we’re all in much bigger trouble than we’ve been led to believe. The stats on carbon emissions from existing properties make the concern about new buildings seem positively futile.

Here’s a few notes from some of the presentations I found most useful at Earls Court a few weeks ago.

Sustainable cities – what we would do if we were serious
Alan Simpson MP, Chair, Parliamentary Warm Homes Group

Simpson proved to be a rare breed of politician; seemingly walking the walk as well as talking the talk, giving an excellent overview of the key issues and speaking knowledgeably about his own efforts to improve matters. Admitting that the current government simply wasn’t doing enough, he cutely announced himself as ‘…inline early for the next manifesto…’ rather than out of line with current policy. The remainder of his speech was largely informed by his admiration for German sustainability policies; citing inter-city competition for improvement, preferential rates on energy sold back to the grid and the resulting community empowerment that has grown to an extent that it is shielded from party politics. Even a regime change wouldn’t be enough to derail it.

Carbon trading? A mythical market with mythical benefits that only benefits the financial services industry. He pointed us to cheatneutral.com for a comparison. Expanding on the topic to look at food production and consumption cultures he talked about Cuba’s enforced self-sufficiency – if they can do it why can’t we?

Further anecdotes about Germany brought us to a summary that proclaimed the need for greater sharing of ideas between countries, which he eloquently summed up by quoting Edward Thompson’s description of ‘…cargo’s of intellectual contraband…’.

Refurbishment according to building type
Dr Paul Ruyssevelt, Director, ESD

A rousing opening polemic delivered by a seasoned politician is a tough act to follow when you’re armed only with Powerpoint. Enter Ruyssevelt with the reassuring news that there is some good work being done in the refurb field already, despite the fact that Yvette Cooper suggests we should think about it for another 10 years before taking any action. (By which time the Pandas will almost certainly be dead – Ed.)

The importance of carbon emission reductions on existing stock was quickly demonstrated with the following graphs (taken from his slides, a version of which is available online here: The Built Environment is just that – BUILT!)

First, this one shows the reductions possible if we just spend the next 40 years just fiddling with new build:

Next, we see the number of existing properties per year that we need to refurbish to reach the hoped for 60% reduction by 2050.

And here’s the rate per year we have to hit if we mooch about doing nothing with existing houses for the next 10 years as Yvette Cooper suggests.

While we wait there are three main initiatives tackling housing refurb: Decent Homes, Warm Front and the Energy Efficient Committment. The level of change from these being perhaps best explained by highlighting that Decent Homes calls for only 50mm of insulation – a provision that Ruyssevelt prefers to call indecent.

Once again the Germans are doing it better with examples such as the KFW Housing Modernisation Grant. An example of a scheme benefitting from this is Freyastrasse in Mannheim:

Having spent time looking for comparable precedents for my ecoterrace project, I was delighted to learn about the next few references.

Ruyssevelt encouraged us to get in touch with John Doggart from the Sustainable Energy Academy if we had a project that might be suited to his Old Home, Super Home project.

A network of exemplar energy efficient old dwellings, which are local and publicly accessible within 15 minutes to nearly everyone in the country. Making them accessible to the public helps homeowners and local authorities to get hands-on knowledge and be inspired to transform their own housing; we plan to have 1000 exemplars within 5 years, equivalent to one per Tesco.

I’ll certainly be offering ecoterrace.co.uk. Also, May this year will see the launch of the Existing Homes Alliance, which will be seeking to build up a database of best practice refurb examples. Ruyssevelt’s very informative talk finished with a slide that reassured me that our project could prove to valuable to the rest of the industry. Of the innovative refurb schemes he was aware of, how many were being monitored to assess their performance?

—-

That dramatic action needs to be taken quickly to reduce carbon could hardly be argued, but as we listened to the discussion panel at the end of the session talk about the housing market and sustainable investment it seemed to me that something was missing from all the debates we’d heard. Spending the money on technologies like efficient boilers, solar panels and high levels of insulation may make for good carbon emission reductions, but does not result in an attractive, enjoyable place to live. Housing market renewal is equally dependent on the quality of the living environment delivering long term financial sustainability, than whether we get complete carbon emission neutrality.

In the midst of all the maths, graphs and scare stories I want to hear about housing that keeps its place in the market and continues to be desirable to buyers because of its design quality. Where’s the discussion about how to make our houses into better pieces of architecture?

cross-posted at ecoterrace.co.uk

Importing energy data into Second Life environments: Eolus