-­‐    

Week  9  isometric  drawing  of  Queens  College  

Activity:    IN  DETAIL  (PART  TWO)  

This  is  an  isometric  drawing  of  our  case  study  building.      The  A3  isometric  drawing  is  attached  at  the  back  of  the  journal.          

Week  9    

                                                             

Flashing  would  be  installed  to  act  as  a  barrier  to  keep  water  out.    If  water  can  penetrate  into  the  house  framing  it  can  result  in  severe  mold,  decay,  and  overall  serious  and  expensive  damage  (Decks.com,  2010).    Back  flashing  is  important  for  cracks  or  leaks.  If  flashing  is  not  applied  properly,  it  can  have  termite  infiltration  or  water  damage.  

http://www.advantagelumber.com/ipe_decking_blog/pro-­‐installation-­‐tip-­‐deck-­‐joist-­‐waterproofing  

Deck  joists  are  boards  usually  made  out  of  pressure  treated  lumber.  This  foundation  is  usually  attached  to  the  side  of  a  house  or  some  sort  of  structure.  The  joists  are  hung  from  a  header  board,  which  is  attached  to  the  house  (Living,  2012).    

At  the  opposite  end,  there  is  a  rim  joist.  The  rim  joist  is  the  end  piece  of  the  joist  system  that  caps  all  of  the  ends.  

 

Decks.com.  2013.  Flashing  the  Ledger  Board.  [image  online]  Available  at:  https://www.decks.com/deckbuilding/Flashing_the_Ledger_Board  [Accessed:  12  Oct  2013].  

Sustainability:  Embodied  energy  may  include  (Yourhome,  2010):    

• The  energy  used  to  transport  the  materials  and  workers  to  the  building  site.  • The  energy  input  in  making  the  materials  

 (such  as  factory/office  lighting,  and  the  energy  used  in  making  and  maintaining  the  machines  that  make  the  materials,  etc.).  • The  embodied  energy  of  urban  infrastructure    

(roads,  drains,  water  and  energy  supply).    The  materials  incorporated  into  a  building  include:  

• The  materials  used  to  construct  the  building  shell.  -­‐ The  materials  used  to  complete  the  building  such  as  bathroom  and  kitchen  fittings,  driveways,  outdoor  paving,  etc.  -­‐ If  materials  are  easy  to  maintain  -­‐ In  the  demolition  process,  whether  these  materials  that  have  been  used  can  be  recycled  or  not  

   (GreenSpec,  2011)    Material   Energy  mj/kg   kgCo2/kg   Density  kg/m3  Concrete   1.11   0.159   2400  Glass   15   0.85   2500                        

eTool.  2013.  Life  cycle  of  building  products.  [image  online]  Available  at:  http://etool.net.au/eblog/news/embodied-­‐energy-­‐building-­‐regulations-­‐yes-­‐or-­‐no/  [Accessed:  13  Oct  2013].  

   Decisions  and  purpose:  

• Materials  such  as  glass  would  be  mostly  based  on  reasons  of  aesthetics.  As  mentioned  in  week  8’s  journal,    using  glass  has  both  pros  and  cons.    

• The  external  decking  is  made  from  timber,  there  are  some  advantages  of  having  timber  decking  (Cannyliving,  2013):  -­‐  it  is  weather  resistant  -­‐  durable  -­‐  require  little  maintenance  -­‐  can  also  create  relaxing  atmosphere  -­‐  can  level  an  uneven  block  of  land  -­‐  softer  to  walk  on  than  concrete  

                             

 

ATD  Constructions.  2013.  Timber  decking.  [image  online]  Available  at:  http://atdconstructions.com.au/services-­‐we-­‐provide/timber-­‐decking/  [Accessed:  13  Oct  2013].  

Economic  Implications:  -­‐ using  existing  foundation  -­‐ save  cost  of  labour  -­‐ use  precast  concrete  panels  -­‐ using  specific  materials,  some  that  are  cheaper  than  others  -­‐ using  materials  that  will  last  longer  in  time  -­‐ having  professionals  to  undertake  the  jobs  so  that  the  work  

on  site  are  done  properly  and  wont  have  to  be  redone      

 

PRESSURE EQUALIZATION CHAMBER  

The  air  chamber  is  created  by  cavity  walls,  two  skins  separated  by  a  hollow  space.  It  is  a  place  for  the  equalization  of  air  pressure  to  occur  and  is  wide  enough  to  prevent  the  capillary  movement  of  water.  It  can  also  serve  as  a  drainage  layer  for  any  water  that  penetrates  the  rainscreen.  

 

 

The  air  chamber  is  located  between  the  rainscreen  and  the  air  barrier  system.  Wind  pressures  induced  on  the  rainscreen  are  transferred  to  this  space  as  air  is  displaced  between  the  outside  and  the  chamber  through  the  vent  holes  located  in  the  rainscreen.    

Ching, F. 2008, Building construction illustrated / Francis D.K. Ching, Hoboken, N.J. : John Wiley & Sons, c2008; 4th ed.  

  Building  Green.  2013.  Pressure  equalization  rainscreen.  [image  online]  Available  at:  http://www.buildinggreen.com/auth/article.cfm/2011/10/5/How-­‐Rainscreens-­‐Work/  [Accessed:  2  Oct  2013].  

Pressure  Equalization  in  Rainscreen  Wall  Systems.  1998.  [e-­‐book]  Canada:  Institute  for  research  in  construction.  p.  3.  http://www.nrc-­‐cnrc.gc.ca/ctu-­‐sc/files/doc/ctu-­‐sc/ctu-­‐n17_eng.pdf  [Accessed:  2  Oct  2013].  

REFERENCES    Cannyliving.  2013.  Advantages  and  best  places  to  build  Timber  Decks  -­‐  Canny  Living.  [online]  Available  at:  http://www.cannyliving.com/timber_decking.htm  [Accessed:  13  Oct  2013].    Decks.com.  2010.  Flashing  the  Ledger  Board  -­‐  Decks.com.  [online]  Available  at:  https://www.decks.com/deckbuilding/Flashing_the_Ledger_Board  [Accessed:  12  Oct  2013].    GreenSpec.  2011.  Embodied  energy.  [online]  Available  at:  http://www.greenspec.co.uk/embodied-­‐energy.php  [Accessed:  13  Oct  2013].    Living,  M.  2012.  Pro  Deck  Installation  Tip:  Deck  Joist  Waterproofing.  [online]  Available  at:  http://www.advantagelumber.com/ipe_decking_blog/pro-­‐installation-­‐tip-­‐deck-­‐joist-­‐waterproofing  [Accessed:  12  Oct  2013].    Yourhome.  2010.  Your  Home  Technical  Manual  -­‐  5.2  Embodied  Energy.  [online]  Available  at:  http://www.yourhome.gov.au/technical/fs52.html  [Accessed:  13  Oct  2013].