Living Walls and their impact on Internal Building Temperatures and Air Quality

Transcription

1 Living Walls and their impact on Internal Building Temperatures and Air Quality

2 Introducing sustainable Landscape to the built environment to promote biodiversity, health & wellbeing

3 Living Walls, Old Style

4 2 nd Generation Living Wall

5 2 nd Generation Living Wall

6 2 nd Generation Living Wall

7 2 nd Generation Living Wall

8 2 nd Generation Living Wall

9 2 nd Generation Living Wall

10 2 nd Generation Living Wall

11 2 nd Generation Living Wall

12

13 Plan A Helping companies such as M&S improve their sustainability in addition to the aesthetic and footfall benefits which companies gain through the installation and maintenance of Living Walls

14 LUX Research The Green Roof and Living Wall market will grow from a $5.3 billion dollar market in 2011 to a $7.7 billion market in 2017 Installations will increase 70% but costs and lack of validation will limit their rise Market share of Living Walls forecasted at 680 Million 9% of the overall market Adoption is driven by a handful of cities. With rising environmental awareness, growth of the green roof market is driven by cities in the developed world such as London, New York, Singapore, and Tokyo

15 Research Project Living Walls impact on Internal Building Temperatures

16 TEST WALL

17 Building Living walls were installed on the south-west facing wall of the building. They cover a section of the walls of a 1 st floor classroom. Monitoring has also been carried out on the identical classroom directly above. 1F: A room with living wall cover 2F: Reference room (no vegetation cover)

18 Test Beds Trough Compost Hydroponic Ivy screen System + extra insulation layer Existing system System without plants

19 Measurements Inside plants Inside substrate External wall surface Sensors have been recording temperatures of both surfaces of the class room wall, inside the substrate & foliage mass. Internal wall surface Indoor air & Humidity Water meters have been recording the consumption for irrigation and the tanks have been collecting the excess water released from each system.

20 Thermal Analysis External wall surface temperature Determines how much heat coming in / out of the room through the wall Energy loads for heating & cooling Heat transferred through the wall structure

21 0:00 1:15 2:30 3:45 5:00 6:15 7:30 8:45 10:00 11:15 12:30 13:45 15:00 16:15 17:30 18:45 20:00 21:15 22:30 23:45 1:00 2:15 3:30 4:45 6:00 7:15 8:30 9:45 11:00 12:15 13:30 14:45 16:00 17:15 18:30 19:45 21:00 22:15 23:30 Temperature 0:00 15:30 7:00 22:30 14:00 5:30 21:00 12:30 4:00 19:30 11:00 2:30 18:00 9:30 1:00 16:30 8:00 23:30 15:00 6:30 22:00 13:30 5:00 20:30 12:00 3:30 19:00 10:30 2:00 17:30 9:00 0:30 16:00 7:30 23:00 14:30 6:00 21:30 13:00 4:30 20:00 11:30 3:00 18:30 10:00 1:30 17:00 8:30 Temperature External Surface Temperature - Summer July Comp-EX-INS Comp-PL Comp-SB Comp-EX Comp-EX-NP NV-EX-1F Out Temp 16 17

22 External Surface Temperature Summer Summer in the UK in 2013 was the hottest summer on record since 1910 on average it was 0.8 C hotter. July was the hottest month. The external wall temperature on a the non-vegetated wall surface reached a peak of 45 C. Temperatures behind all systems tested showed positive cooling effects, lowering the external wall temperature by 20 C.

23 0:00 1:45 3:30 5:15 7:00 8:45 10:30 12:15 14:00 15:45 17:30 19:15 21:00 22:45 0:30 2:15 4:00 5:45 7:30 9:15 11:00 12:45 14:30 16:15 18:00 19:45 21:30 23:15 1:00 2:45 4:30 6:15 8:00 9:45 11:30 13:15 15:00 16:45 18:30 20:15 22:00 23:45 Temperature 0:00 14:45 5:30 20:15 11:00 1:45 16:30 7:15 22:00 12:45 3:30 18:15 9:00 23:45 14:30 5:15 20:00 10:45 1:30 16:15 7:00 21:45 12:30 3:15 18:00 8:45 23:30 14:15 5:00 19:45 10:30 1:15 16:00 6:45 21:30 12:15 3:00 17:45 8:30 23:15 14:00 4:45 19:30 10:15 1:00 15:45 6:30 21:15 12:00 2:45 17:30 Temperature External Surface Temperature - Winter January Comp-EX- INS Comp-PL Comp-SB Comp-EX Comp-EX- NP NV-EX-1F

24 External Surface Temperature Winter Winter 2013 was slightly wetter than average and the temperature was an average of 0.4 C cooler. February was the coldest month of the year and a spell of severe weather brought very low temperatures during March and April. Temperatures behind the systems with no vegetation remained between 2-5 C higher than the wall temperature with no systems in place Temperatures behind the systems with plants was 4-7 C higher than the wall temperature with no systems in place meaning that plants provided additional insulation in winter.

25 JULY When airconditioning is on for 24hrs Between 8:00 19:00 JANUARY When heating is on for 24hrs Between 8:00 19:00 Cooling load (Wh/m2) No Living Wall 1685 Reduction Living Wall 0 100% Living Wall + Insulation No Living Wall % Living Wall 0 100% Living Wall + Insulation 0 100% Heating load (Wh/m2) No Living Wall Reduction Living Wall % Living Wall + Insulation No Living Wall % Living Wall % Living Wall + Insulation %

26 Reasearch Summary - Living walls are very effective tools to reduce the heat absorbed by buildings during the Summer. Cooling buildings by up to 20 C thus reducing the need to cool buildings by using excessive air conditioning. - Living walls are effective insulators of buildings during the Winter, insulating buildings by up to 7 C - Scotscape development of Insulated Living Wall Panel in order to provide a thermal measurement

27 2 nd Generation Living Wall Development as a result of research We have an ongoing programme of R&D

28 Air Quality

29 Air our most important food

30 Humans perform best when air temperature is 21 deg C and humidity is 45%-55%

31 Sick Building Syndrome Dry Air from Air Conditioning and Heating

32 Biophilia Remove CO2 Remove VOC s Increase wellbeing Increase productivity Noise suppression

33 Biophilia Produce Oxygen Increase humidity Trap Particulate matter Reduce temperature Less sick days

34 Greening the workplace increases productivity by 39.6% Targeted use of plants can increase satisfaction by 40.7% Reduces sick days by 25%

35 Summary Living Wall market is in it s infancy and has huge growth potential. Scotscape are committed to ongoing R&D and thought leadership Living Walls improve Air quality in both exterior and interior settings Living Walls insulate buildings thus reducing cost of heating and cooling For more information visit

36 Any questions? For more information visit