Archive for the ‘Sustainable Design’ Category

5 Nov 2008

Proper timber framing

This is what I call timber framing. The Glulam rafters on the farmshop are 675mm deep!

This is what I call timber framing. The Glulam rafters on the farmshop are 675mm deep!

5 Nov 2008

A new forest of timber

The farmshop (Fodder) at Yorkshire Showground is well underway, Eamon is pictured to put the building into some scale

The farmshop (Fodder) at Yorkshire Showground is well underway, Eamon is pictured to put the building into some scale

29 Nov 2007

Circle Healthcare

Circle Healthcare Section

Circle are the U.K.’s largest Partnership of healthcare professionals who have come together to provide accessible, 21st century healthcare to all patients. Circle has appointed design teams of international reputation to design a new generation of “compact” hospitals and clinics.

They are: Foster + Partners, Hopkins Architects and Rogers Stirk Harbour + Partners. These firms have produced some of the most iconic buildings in Europe, including the Swiss Re Tower (the “Gherkin”), Lord’s Cricket Ground Mound Stand and Terminal Five at Heathrow Airport. Together with Circle, these three distinguished design firms will share knowledge and best practice around the better design of hospitals in the U.K.

The location, architecture and design of the Circle hospitals constitute a central part of our commitment to providing the highest quality patient experience. Circle will provide clinicians, associates and patients with an attractive working and visiting environment. The hospitals will be in accessible locations, provide sufficient car parking and will be set in landscaped surroundings.

Foster + Partners, Hopkins Architects and Rogers Stirk Harbour + Partners will create designs that draw upon the healing properties of natural light, promote the soothing effects of colour, supply the stimulation of art and provide the reassurance offered by accessible, uncluttered internal spaces. According to Circle:

“We promote an environmentally sustainable approach to the design and construction of our buildings. Our commitment will be expressed through efficient uses of energy, the adoption of environmentally-friendly materials and the implementation of day-to-day policies of corporate social responsibility in Circle hospitals. All Circle facilities are subject to regulation by the Healthcare Commission.”

28 Oct 2007

Dalby Forest Visitor Centre - stair detail - see main picture below

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28 Oct 2007

Dalby Visitor Centre - good concept, patchy execution and crap food

Dalby Forest

The new Dalby Forest Visitor Centre. Mostly timber, with some glulam beams. Let down by inadequate detailing and workmanship, which means poor finish and lots of future maintenance.

Don’t bother with the food - it ranks as one of the worst meals ever.

27 Sep 2007

Recycle Community – receive recyclable building products free of charge!

The Green Register recently met Paul Hambridge, the Managing Director of a new initiative called Recycle Community, and think his idea for reducing building waste is a brilliant one! 

Every building site produces waste material which can be reused for other projects, however at present the common practice is to dump the waste material in landfill sites or deliver it to reprocessing plants. 

On the Recycle Community website you can join as a supplier and post details of building materials you have available for recycling, or you can register as a customer and view those listings of building materials. 

take a look  If you’ve got any questions you can contact Paul by email at paul@recycle-community.com

14 Sep 2007

Mater Dei Hospital Malta

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Mater Dei Hospital is a new acute hospital on Malta. When completed the new hospital project will have a total floor area of 232,000m² and approximately 8,000 rooms. The hospital will also be used as a teaching facility by the neighbouring University of Malta.

Resources in Malta have always been scarce, which is why environmental considerations have played a key role in the development of the Mater Dei Hospital.

In keeping with the environmental considerations, which have played such a role in the hospital’s development, this will be the first building in Malta with insulated external walls and with high performance glass in the windows. These will reduce cooling costs between April and November and heating costs during the other months.

Rainwater will be collected, stored and used for irrigation. Low flush toilets and environmentally adapted refrigerants will be used as well as polypropylene (PP) piping. In addition, there will be an effort to reduce electromagnetic fields at the hospital by various means.

Construction waste will be separated at source so the Maltese authorities can arrange further recycling. Preparations will be made for the recycling of topsoil from excavation work, as well as stones from the demolition of stone walls.

During the construction, trees that would have normally been cut down have instead been moved and re-planted at other sites. Rubble walls and buildings of cultural heritage value have been moved and rebuilt in a safe environment. As many as ten different kinds of waste are being sorted and recycled. Excavated material is partly used on site as road base and surplus material is used to refill an excavated quarry, which will later be used as an orange plantation.

The Mater Dei hospital is set to have air conditioning in every room and that is what will take the biggest toll on Malta’s energy bill. A spokesperson for the Foundation for Medical Service confirmed that, “each and every room of the hospital will be air conditioned as well as certain plant areas. Other areas such as corridors and service areas will be air-conditioned indirectly or not at all.”

It also seems that while those who planned and approved the hospital development did consider energy saving, renewable sources of energy were not considered, although solar power could apparently cut the emissions and energy bill considerably.

The Foundation’s spokesperson said: “No solar or renewable power use is envisaged but the design includes energy saving features such as: double glazing and UV blocks on windows; use of variable speed drives; heat recovery from chillers and air handling units; use of condensation from air-handling units; electronic ballasts on fluorescent lighting fixtures; a building automation system and other features.”

Help from the UK

The senior planning team from James Cook University Hospital in Middlesbrough has been helping with the migration plan [arranged by the Department of Health’s International Consultancy Division], moving all the staff, patients, equipment and furniture from the old St Luke’s Hospital across to Mater Dei. JCUH is a similar size and has recently been the subject of a similar move, so the expertise is really valuable. Middlesbrough is also a similar size in population terms to Malta at around 400,000; the climate is not similar!

P+HS opportunities

Chris P has been out in Malta at the invitation of the Maltese Government’s Foundation for Medical Service to look at the new hospital and discuss the possibility of working together on a new 200 bed rehabilitation hospital, and the redevelopment of their primary care estate.

 

 

5 Jun 2007

10% the easy way?

Bennetts Associates is relying on designed-in sustainability, rather than renewables, for its refurbishment of Ashburton Court in Winchester. During the refurbishment the top floor of the buildings will be cut back, pedestrian bridges removed, and new one-storey buildings built at the centre of the block along a new internal street to house a reception area, a restaurant and café, an auditorium and meeting rooms. Analysis of the building’s concrete frame, slabs and foundations using Envest, the BRE’s Whole Lifecycle Environmental Impact Analysis software, showed that they comprise about half of the building’s embodied energy.

Winchester has not adopted a mandatory 10%, but rather a suggestion of renewables. After extensive analysis, Bennetts was able to demonstrate that the real issue was overall energy consumption, not the percentage of on-site generation.

Architects Journal. 26 Apr (Pg. 38-40)

21 May 2007

Major planning reforms for a sustainable future

Communities Secretary Ruth Kelly has unveiled major reforms of the country’s planning system to make it fit to tackle new challenges in the 21st century - speeding up the system alongside improved community consultation.

The wide-ranging White Paper has four key pillars:

  • A better, quicker system to decide major infrastructure projects with enhanced community engagement and an improved level of expertise.
  • Simplifying the local planning system for householders to make it far easier to make home improvements like extensions and conservatories, where there is little or no impact on neighbours.
  • Planning playing a bigger role in tackling climate change.
  • Ensuring the planning system continues to support vibrant town centres.

The Government also pledged a new commitment to protect the green belt. The White Paper makes clear previously developed brown field land must remain the clear priority for housing development with our parks and green spaces protected.

The simplifying of the local planning system for householders will allow councils to focus on strategic priorities such as more homes for future generations and tackling climate change.

For more detail see the Department of CLG news

Notes to Editors

1. The ‘Planning for a Sustainable Future’ White Paper can be found here, the accompanying consultation document can be found here.

2. The White Paper sets out our detailed proposals for reform of the planning system, building on Kate Barker’s recommendations for improving the speed, responsiveness and efficiency in land use planning, and taking forward Kate Barker’s and Rod Eddington’s proposals for reform of major infrastructure planning. Further information can be found here and here  [External link].

3. The allocations for the first tranche of PDG for 07/08 together with  accompanying documentation can be found at here.

16 May 2007

Green Register Seminar – Integrated Design

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 Case Study – Urban Splash @ New Islington
  

  • 12 Hectare Site 
  • Part of Millenium Housing Sites 
  • 1970’s Housing Estate dubbed the Worst Estate in Manchester 
  • Assests retatined – 
    • Canal Network 
    • Community Spirit 
  • Collaborative Workshops offered re-housing options to residents 
  • Rebranding of estate 
  • Will Alsop Masterplan, including “the Chips” 
  • Mixed Use, including 
  • 1700 new homes 
  • Variety of Parks – Community Park, Wildlife Island, Orchard, Boardwalk, Beach 
  • Revival of Waterway 
  • Primary School 
  • Primary Care Centre 
  • Small Scale Retail 
  • 180units/hectare 
  • All dwellings to achieve Eco-Homes Excellent 
  • Maximise use of natural sunlight 
  • Use of low embodied energy materials throughout 
  • Combined Heat and Power, future-proofed for bio-fuels 
  • Jobs created for local people within the construction phase
      

Things you might forget, or things you might not know… 

 

  • Integrate design at an early stage – ideally stage A/B, rather than at Stage C/D – consulting Energy Engineers / assessors. Check for Policy changes if the project has been on hold for a while.
      
  • Recent UK Policy changes include PPS1 Addendum –
                Demonstrate how building regulations to be met at planning stage
      
  • Passive Design – 
    • Use the sun’s energy to reduce winter heating requirement 
    • Orientate main façade within 30degrees of south 
    • Avoid overshadowing 
    • Utilise thermal mass to store heat 
    • Minimise glazing to north façade 
    • Add a glazed winter garden to south façade 
    • Incorporating 2-3% Carbon Dioxide emission savings may reduce the “renewables” target – spray taps, smaller baths, energy efficient applicances + lights
  • Remember to design in CHP Spaces into 1st phase of phased construction
    Use Thermal Analysis at scheme design stage to highlight potential overheating + design out prior to planning consent
      
  • Check Planning Policy for correct wording –
    If 10% CO2 saving is required, target electrical – 3.5m2 Solar Thermal panels should achieve target saving
    If 10% Energy saving is required, target Gas – 2.2m2 Solar Thermal panels should achieve target saving
      
  • Code for Sustainable Homes – Water
    Average UK use – 150 litres/person/day
    Typical Spec – 190 l/p/d
                6l Standard WC
                full flow taps
                standard bath – 200l
                shower – 15 l/minute flow
    Level 3 – 105 l/p/d
                Dual Flush 6/4 l WC
                Aerated taps
                Small bath – 150l
                6 litre shower 

Level 5 – 80 l/p/d 

Dual Flush 4/2 l WC 

Aerated taps 

Small bath 

Less than 6litre shower

Rainwater / Greywater harvesting for WC Flush 

 Products
   

  • Pilkington “Optitherm” glazing controls heat loss and solar gain  
  • “Ecoplay” grey water systems will treat + recycle grey water for use in WCs  
  • “Dupont Energain” is a gypsum/paraffin Wax sealed board, which absorbs heat in lightweight construction by altering its state (effectively melts and solidifies) in hot temperatures. More info    
  • Wind Turbines –  
    • Swift (1.5kW, 2.1m diameter), £5250, provides approx 50% electricity needs of a 3bed house  
    • Proven (15kW, 9m diameter), £40,000, provides all electricity needs of 7.5no. 3bed houses      

 

 

29 Mar 2007

Beware untried trendy materials!

JM Architects is at the centre of a £4 million High Court battle over the alleged use of ‘entirely unsuitable’ rammed-earth walling in the construction of a children’s nursery in south London. Last year, soil walling to the partially built extension to the Bird in the Bush Centre on the Old Kent Road had to be demolished because the technique, recommended by the architect, was found to be ‘problematic’ and ‘unacceptable’, according to a High Court writ.

Now the client, Southwark Primary Care Trust, is suing JM Architects, along with consulting engineer Haskins Robinson Waters, building contractor YJL London and subcontractor In Situ Rammed Earth, for breach of contract and negligence.

Work on the nursery extension began in August 2003 but was stopped shortly afterwards when, it is alleged, it became clear that builders would not be able to construct load-bearing walls of ‘sufficient stability’ using compressed earth.

The High Court will hear that an inspection revealed the walls were cracked and bowed, with numerous defects. The walls were found to be structurally unstable and needed substantially more maintenance and repair than conventional brick and mortar walls would have done.

It is claimed that subsequent research showed the walls had been built using unsuitable soil contaminated with wood, masonry, concrete and leaves, and were not square because they had been allowed to dry without adequate propping, the writ continues.

JM Architects is alleged to have breached its duties by suggesting that the rammed-earth technique could shave some 30 per cent off the standard construction costs. In fact, this method carries a significant risk of higher costs, the writ says, and JM Architects should have flagged up the risks of this ‘novel’ construction at an early stage.

The practice is also accused of misleading Southwark Primary Care Trust into believing that the rammed earth was sourced on-site, helping to save costs. Instead the soil was dug off-site at Gallagher’s Quarry, Kent, where the earth was contaminated, it is claimed.

Other charges include failing to adequately prepare detailed proposals, and not compiling a feasibility study with due care and skill.

The writ concludes that the walls were entirely unsuitable for use in the project as a result of both their construction and design.

The primary-care trust was forced to flatten the nursery extension in 2006 and replace the walls with blockwork. The authority says its losses include the original cost of the project, remedial work, money paid to the nursery’s operators – the Catholic Children’s Society and Tower Homes – and legal and professional fees.

Architects Journal 29 March 2007

15 Jan 2007

Bio-Energy Grants Flower This Winter

Architects with a project that would benefit from a bio-energy installation should note that Defra has just announced a 10-week grant application window for biomass-fuelled heat and CHP projects. Grants are intended to help bridge the cost differential between bio-energy and a fossil fuel alternative and range from £25,000 to £1m.

This is the third funding round of the £10-15m Bio-energy Capital Grants Scheme, which was announced by the government last year as part of its response to a report from its Biomass Task Force, and is open to the industrial, commercial and community sectors (including local authorities and schools).
The grant application window will close on 9 March 2007.

For more information 

10 Jan 2007

Code for Sustainable Homes

Code for Sustainable Homes signals the future for Building Regulations

At the end of December 2006 the government formally published its long awaited Code for Sustainable Homes (CSH), which becomes effective in April 2007.  This is widely regarded as an important tool for achieving ‘zero carbon’ status in housebuilding, building homes which are both thermally efficient and which generate locally their own low energy requirements (eg using solar panels on the roof). 
The government has made it clear that the Code signposts the direction that future changes to Building Regulations will take.  In other words, the concepts, tools and standards in CSH will be encompassed in future changes to Part L.
The CSH is a voluntary tool for both public and private housing developers.  To access central government funding, however, all public housing will need to achieve at least the minimum rating (1 star).
As we all know, achieving carbon reduction has been one of the government’s top priorities for some time - and it is using three main ‘levers’ to effect change:

Regulation
For example, the April 06 changes in requirements to Part L. 
Tax
The chancellor announced in his pre-Christmas speech that the government’s ambition is to provide a time limited exemption on stamp duty for the vast majority of new zero carbon homes.
Government as a customer
Where government is funding housing developments it can set higher standards of performance than the minimum levels set in regulations.  This is the logic behind the CSH. 

The government also hopes that the Code, with its maximum 6 star rating scheme, will provide a marketing tool for private developers.  Consumers have responded very well to energy rating schemes for electrical white goods and the government hopes that by informing customers of the overall energy ratings of houses it will lead to the same positive changes in spending decisions.

How will the scheme work?

Developers can achieve ratings from one to six stars.  The lowest level, 1 star, demands an improvement on the minimum requirements given in Part L1A, calculated on a ‘points out of 100′ basis across nine categories (see table below).  The higher star ratings naturally require higher point scores.  There is flexibility in how points are achieved, but some performance aspects are compulsory, as the chart below simply summarises.

Categories
Commentary on the flexibility
1 Energy / CO2
2 Water
These 2 areas are considered the most important and are therefore the least flexible.
Minimum levels of performance are set for each star rating.

3 Materials
4 Surface water run-off
5 Waste 
Minimum performance levels are set for 1 star performance only.

6 Pollution
7 Health and well-being
8 Management
9 Ecology 
No minimum standards are set. 

Certification for Code compliance

To gain certification for code compliance there is a four-part process:

1. The developer produces an initial design for appraisal
2. A trained and certified Code Assessor conducts an initial assessment on the design, recommends a sustainability rating and issues an interim Code Certificate.  This is carried out for each house type (but not each dwelling)
3. The assessor performs a post completion check on a sample of the development to verify the rating
4. The assessor produces a final Code Certificate of compliance.

The concept of the Code is a positive move towards improving sustainable housing and should promote the greater use of sustainable materials.  Further details of this will be laid out in a revised Green Guide, scheduled to be ready by this April.  The guide will provide sustainability ratings for generic materials and products with a methodology for appraising specific manufacturer’s products.
 

For full details of the Code - visit this site 

20 Dec 2006

BBC3 Presenter Search

A production company has got in touch with the Green Register - below is some further information from them:
“Are you a passionate Eco-builder/Architect?  An award winning TV company is making an ambitious green series and we’re looking for an eco-friendly builder or architect to present the show.  So if you are dynamic, innovative and anarchic and have a passion for all things environmentally friendly please contact Joanne on 020 7290 0539 or email joanne@bettytv.co.uk”
20 Dec 2006

GREEN CONSTRUCTION ROUNDUP - NOV 06

GREEN GRANTS FOR HOMES

Funding to subsidise domestic installation of renewables has failed to meet demand, leading the government to divert cash set aside for other programmes.The DTI set up the Low Carbon Buildings programme to replace its Clear Skies programme. The programme allocated £80m over the next three years to boost the use of technologies such as solar and wind power. However, the £3.5m allocated for homes over the 2006-07 financial year was fully allocated within just five months.

BIOMASS

The greatest CO2 saving is from CHP fuelled by biomass
This second part of the AJ renewables series explores biomass and combined heat and power (CHP). Today, CHP is typically gas-fired, while a biomass boiler usually generates just heat, but there may be an overlap in multi-fuel projects and also in the future we may see biomass-fired CHP, operating at a larger scale with the heat going to district heating. So looking at them together now seems sensible.

Low and zero-carbon technologies, such as CHP, and renewable energy sources, such as biomass fuels, will increasingly be used to improve building performance beyond the current Building Regulations.

Architects Journal. 16 November (Pg. 38-40)

Ground Source Heat Pumps

The third part of the AJ renewables series looks at ground-source heat-pump (GSHP) systems and their rising popularity.  The rapid increase in the use of ground-source energy for building heating and cooling systems in the UK is a relatively recent phenomenon; however, there are more than 900,000 installations in the US and 500,000 on the continent.

The fuel efficiency of a GSHP system in heating mode can be 50-70% higher than the most efficient gas boiler and cooling efficiency can be 20-40% greater than alternative air-cooled technologies. This produces corresponding year-round carbon emission reductions and accounts for the current intense interest in GSHP systems.

Installation costs tend to be higher than with more conventional systems, hence the historic market resistance to the technology, but the value equation has recently shifted considerably as legislators have moved to target CO2 reduction.

Article looking, in depth, at this method of achieving a reduction in CO2 generation.
Architects Journal. 23 November (Pg. 44-46) 
 

CIBSE green guide
‘TM38: Renewable energy sources for buildings’, gives guidance to developers, planners, designers and building owners to enable them to consider integrated renewable energy systems at this early stage. The guidance helps to identify the most appropriate low or zero carbon (LZC) energy solutions for buildings and/or developments based on users requirements.

TM38: Renewable energy sources for buildings. CIBSE, 2006. http:///www.cibse.org/index.cfm?go=publications.view&PubID=348&S1=y&L1=0&L2=0