Future Cities - Cidades Futuras




“Quando alguém cria uma cobertura verde numa casa, não precisa de temer que
          ...
Dusty Gedge
Presidente da
    EFB
Quente                  Seca

              CIDADE



                       Poluída
IMPERMEÁVEL
                         ...
Here is a Title

A bullet point
Another one
And another one




                  NATURE
www.livingroofs.org
www.greenroofconsultancy.com
www.livingroofs.org
www.greenroofconsultancy.com
42
7
Late June 09 - Health Alert 2
Early July Intense Short rainstorms
Alterações Climáticas - UK

Aumento da temperatura no Verão
– em particular nas cidades

Aumento da probabilidade de
ocorr...
Áreas urbanas - o problema?

• Falta de solo e de permeabilidade
• Falta da vegetação e de evapotranspiração
• Falta de ec...
Manchester and
Central London -
No room for parks

City of London
No room for trees
Polinização                                          Habitat




         Ecosystem Services


                     Regula...
Intensive green roof
Intensive green roof
Extensive            Semi intensive                    Intensive

       Use           Ecological Landscape Garden/Ecologi...
Extensive green roof
Extensive green roof
Extensive green roof
Extensive green roof
Extensive green roof
Incêndio


Manutenção                          Infiltrações
                                           Text

             ...
INCÊNDIO
Waterproofing

“Vor sprung durch technik”

•Green roof element protects waterproofing
•From UV, ponding, frost etc
•Can do...
Maintenance
• Intensive - depends on the vegetation - High
  Maintenance/Input

• Extensive - low maintenance - biannual weed
  and cl...
STRUCTURE
      Lightweight sedum mat               90kg/m2


Substrate based extensive green roof   120 -150 kg/m2


    ...
Aesthetics

Extensive - adornment or ecology


One of the main concerns during design
process
Energia e Água
Energia

• Macro and the Micro
• City Scale and Building Scale
• Cities can be 5 degrees warmer than
  the country side
Energia e Água

• Vegetated landscapes need water
• Plants - „sweat‟ - evapotranspirate
• Evapotranspiration = cooling
CIDADES FRESCAS / CIDADES
         VERDES
Energia e Água




Roehr: 10 % de redução no uso de energia
   14% de redução da escorrência superficial
Paradise Park
• Brown roof is
 approximately 150mm
• Slows heat transfer by 6
 hours
• Between noon and 1800
 no heat tran...
Summer Reductions with Green Roof
        4.15Kwh/msq/yr
                      Z16        25%

                Z15        ...
Power and Plants


Evapotranspiration
maintains ambient
 temp. close to 25
    degrees C
ÁGUA
Rainfall Harvesting


 Toilet reuse                          Irrigation


                     Water


Run off Volume     ...
Water Retention

TYPE OF DEPTH [MM]         VEGETATION         WATER RETENTION
 GREEN                                     ...
Rainfall Attentuation
Roofs are source -green roofs a
 source control mechanism
In practice there is very little runoff ...
Rainfall Harvesting
 Can use water from roofs as grey
  water
 Some commercial substrates have
  nutrients which leads t...
Drawn by: Kevin Perry
Drawn by: Kevin Perry
Nature
Black redstart
Rare pollinators need substrates as
           well as plants
98
91
New London Plan
•   The Mayor will and the boroughs should expect all major developments to in
    corporate living roofs ...
Area of green roofs = 326,682m2/3.5 million ft2
Hyde Park/Kensington gardens = 250,000m2




      Up to 2004 = 76,682m2 /...
Existing roofs in the City
10 million m2 potentially could
          be greened

    There is more to do!
OBRIGADO
dusty@dustygedge.co.uk




          Text
            Text
Dusty Gedges - EFB
Dusty Gedges - EFB
Dusty Gedges - EFB
Dusty Gedges - EFB
Dusty Gedges - EFB
Dusty Gedges - EFB
Dusty Gedges - EFB
Dusty Gedges - EFB
Dusty Gedges - EFB
Dusty Gedges - EFB
Dusty Gedges - EFB
Dusty Gedges - EFB
Dusty Gedges - EFB
Dusty Gedges - EFB
Dusty Gedges - EFB
Dusty Gedges - EFB
Dusty Gedges - EFB
Dusty Gedges - EFB
Dusty Gedges - EFB
Dusty Gedges - EFB
Dusty Gedges - EFB
Dusty Gedges - EFB
Dusty Gedges - EFB
Dusty Gedges - EFB
Dusty Gedges - EFB
Dusty Gedges - EFB
Dusty Gedges - EFB
Dusty Gedges - EFB
Dusty Gedges - EFB
Dusty Gedges - EFB
Dusty Gedges - EFB
Dusty Gedges - EFB
Dusty Gedges - EFB
Dusty Gedges - EFB
Dusty Gedges - EFB
Dusty Gedges - EFB
Dusty Gedges - EFB
Dusty Gedges - EFB
Dusty Gedges - EFB
Dusty Gedges - EFB
Dusty Gedges - EFB
Dusty Gedges - EFB
Dusty Gedges - EFB
Dusty Gedges - EFB
Dusty Gedges - EFB
Dusty Gedges - EFB
Dusty Gedges - EFB
Dusty Gedges - EFB
Upcoming SlideShare
Loading in …5
×

Dusty Gedges - EFB

647 views
594 views

Published on

O enfoque deste Workshop está na demonstração das oportunidades de intervenção que resultam da actual conjuntura no âmbito da CERTIFICAÇÃO ENERGÉTICA E DA QUALIDADE DO AR EM EDIFÍCIOS, dando relevo ao papel das COBERTURAS no desempenho energético-ambiental do edificado. O Workshop é dirigido a todos os decisores que influenciam a qualidade de construção do meio edificado.

O tema assume grande relevância, na medida em que as coberturas dos edifícios estão na origem de muitas patologias, que carecem de resolução urgente e, também, porque é nestes espaços que será possível integrar um conjunto importante das oportunidades associadas à sustentabilidade urbana – é o caso da utilização de energias renováveis, do aproveitamento da água da chuva e do contributo para a redução do efeito “Ilha de Calor Urbana”.

Published in: Technology
1 Comment
2 Likes
Statistics
Notes
No Downloads
Views
Total views
647
On SlideShare
0
From Embeds
0
Number of Embeds
37
Actions
Shares
0
Downloads
36
Comments
1
Likes
2
Embeds 0
No embeds

No notes for slide

Dusty Gedges - EFB

  1. 1. Future Cities - Cidades Futuras “Quando alguém cria uma cobertura verde numa casa, não precisa de temer que a casa se dissolva na paisagem.” Freidensreich Hundertwasser (1928-2000) – Artista plástico, arquitecto e filósofo austríaco
  2. 2. Dusty Gedge Presidente da EFB
  3. 3. Quente Seca CIDADE Poluída IMPERMEÁVEL Ar Água
  4. 4. Here is a Title A bullet point Another one And another one NATURE
  5. 5. www.livingroofs.org www.greenroofconsultancy.com
  6. 6. www.livingroofs.org www.greenroofconsultancy.com
  7. 7. 42 7
  8. 8. Late June 09 - Health Alert 2 Early July Intense Short rainstorms
  9. 9. Alterações Climáticas - UK Aumento da temperatura no Verão – em particular nas cidades Aumento da probabilidade de ocorrência de precipitações intensas – fenómenos de inundações repentinas
  10. 10. Áreas urbanas - o problema? • Falta de solo e de permeabilidade • Falta da vegetação e de evapotranspiração • Falta de ecosystems services „...UK cities will need an increase of at least 10% green space by 2020 to combat climate change..University of Manchester 2005
  11. 11. Manchester and Central London - No room for parks City of London No room for trees
  12. 12. Polinização Habitat Ecosystem Services Regulação do clima / inundações Protecção e abrigo Agua potável
  13. 13. Intensive green roof
  14. 14. Intensive green roof
  15. 15. Extensive Semi intensive Intensive Use Ecological Landscape Garden/Ecological Landscape Garden/Park Type of vegetation Moss-Herbs-Grasses Grass-Herbs-Shrubs Lawn/Perennials, Shrubs, Trees Benefit W, T, B W, T, B, A W, T, B, A Depth of substrate 60 - 200mm 120 - 250mm 150 - 400mm Weight 60 - 150 kg/m2 120 - 200 kg/m2 180 - 500 kg/m2 Cost Low Periodic High Input is the defining factor
  16. 16. Extensive green roof
  17. 17. Extensive green roof
  18. 18. Extensive green roof
  19. 19. Extensive green roof
  20. 20. Extensive green roof
  21. 21. Incêndio Manutenção Infiltrações Text Mitos e desafios Integração Estabilidade paisagística
  22. 22. INCÊNDIO
  23. 23. Waterproofing “Vor sprung durch technik” •Green roof element protects waterproofing •From UV, ponding, frost etc •Can double/triple life of waterproofing
  24. 24. Maintenance
  25. 25. • Intensive - depends on the vegetation - High Maintenance/Input • Extensive - low maintenance - biannual weed and clear out of outlets perimeters • Instant green - higher maintenance later • Slow greening - less maintenance long term www.livingroofs.org 27 www.greenroofconsultancy.com 37
  26. 26. STRUCTURE Lightweight sedum mat 90kg/m2 Substrate based extensive green roof 120 -150 kg/m2 Paving/shingle 120 kg/m2 Semi intensive 200 -250 kg/m2 Intensive 300 kg/m2
  27. 27. Aesthetics Extensive - adornment or ecology One of the main concerns during design process
  28. 28. Energia e Água
  29. 29. Energia • Macro and the Micro • City Scale and Building Scale • Cities can be 5 degrees warmer than the country side
  30. 30. Energia e Água • Vegetated landscapes need water • Plants - „sweat‟ - evapotranspirate • Evapotranspiration = cooling
  31. 31. CIDADES FRESCAS / CIDADES VERDES
  32. 32. Energia e Água Roehr: 10 % de redução no uso de energia 14% de redução da escorrência superficial
  33. 33. Paradise Park • Brown roof is approximately 150mm • Slows heat transfer by 6 hours • Between noon and 1800 no heat transfer • 28kW heat gain • 9.2kW per hour would normally be used • Needs no air conditioning • Saving 3,800kWhrs/year
  34. 34. Summer Reductions with Green Roof 4.15Kwh/msq/yr Z16 25% Z15 9% 22% Z8 Z13 2% 9% Z7 Z12 1% 2% Z6 Z12 1% Z5 Z11 0% Z4 Z10 5% Z3 Z9 Z2 Z1 Winter Reductions with Green RoofBetween 2 - 6 Kwh/msq/yr
  35. 35. Power and Plants Evapotranspiration maintains ambient temp. close to 25 degrees C
  36. 36. ÁGUA
  37. 37. Rainfall Harvesting Toilet reuse Irrigation Water Run off Volume Rate of run off + Stormwater Attenuation
  38. 38. Water Retention TYPE OF DEPTH [MM] VEGETATION WATER RETENTION GREEN ANNUAL AVERAGE % ROOF Extensive 20-40 MOSS/SEDUM 40 40-60 SEDUM/MOSS 45 60-100 SEDUM/MOSS/HERBS 50 100-150 SEDUM/HERBS/GRASS 55 150-200 GRASS/HERBS 60 Intensive 200 - 250 LAWNS/SHRUBS 60 250 - 500 LAWNS/SHRUBS 70 <500 LAWNS/SHRUBS/TREES <90
  39. 39. Rainfall Attentuation Roofs are source -green roofs a source control mechanism In practice there is very little runoff for many rainfall events A lot of the water that falls on the roof is removed by evaporation and transpiration from plants Runoff volumes and rates are reduced In Germany green roofs are important part of zero discharge sites
  40. 40. Rainfall Harvesting  Can use water from roofs as grey water  Some commercial substrates have nutrients which leads to discolouration of water  Discoloration disappears after few years once vegetation established  If are going harvest „no‟ nutrient substrate can be used  POTSDAMMER PLATZ
  41. 41. Drawn by: Kevin Perry
  42. 42. Drawn by: Kevin Perry
  43. 43. Nature
  44. 44. Black redstart
  45. 45. Rare pollinators need substrates as well as plants
  46. 46. 98 91
  47. 47. New London Plan • The Mayor will and the boroughs should expect all major developments to in corporate living roofs and walls, where feasible and reflect this in Local Development Framework policies. It is expected that this will include roof and wall • planting that delivers as many of these objectives as possible: • Accessible roof space • Adapting and mitigating for climate change • Sustainable urban drainage • Enhancing biodiversity • Improved appearance • Boroughs should also encourage the use of living roofs in smaller developments and extensions where the opportunity arises
  48. 48. Area of green roofs = 326,682m2/3.5 million ft2 Hyde Park/Kensington gardens = 250,000m2 Up to 2004 = 76,682m2 /825,400ft2 2004 -2009 = 326,682m2/3 million ft2 Text Total greater than 500,000m2
  49. 49. Existing roofs in the City 10 million m2 potentially could be greened There is more to do!
  50. 50. OBRIGADO dusty@dustygedge.co.uk Text Text

×