Much has been said in recent times about the ongoing, severe effects of transportation, refining and even flatulent cows on the planet. These issues arise from the GHG (green house gases) which play havoc with our fragile atmosphere, the very same atmosphere our great grandchildren will need to survive. Time and again it seems the impact of traditional or accepted western building methods and lifestyles however go well under the radar. I presume there are reasons for this, non however can be justifiable given research showing that the biggest impact from GHG stems from the heating and electricity involved with the way we build and survive within that building.
Around 15.3% (residential and commercial combined) of GHG emanate from this source, compared with 9.9% from road transport (5.1% from livestock and their emissions). Since the dawn of our modern form we have used strawbale (using the term generically), given the unbeaten ability of rendered strawbale to insulate us, such an option will make us more comfortable, in less debt, in a more beautiful surrounding and having to worry less about our great grandchildren. See the wonderful info graphic attached from the World Resource Institute for more information. It’s time to step back to move forward!
R-Value of Insulating Materials
|
Material
|
R – Value
|
|
Sheep’s wool
|
2.1-2.7
|
|
Fibreglass
|
2.0
|
|
Air-Cell
|
2.4-2.7 |
|
Rock wool
|
2.5
|
|
Cellulose fibre
|
2.3
|
|
Polyester
|
2.3
|
|
Extruded polystyrene
|
3.5
|
|
Expanded polystyrene
|
2.6
|
|
Strawbale (rendered 450mm wide bale)
|
5.6
|
|
Aerated concrete
|
0.8
|
|
Insulated cladding
|
2.6-5.0
|
Source http://www.newtonhouse.info/insulation.htm
Click the infographic to view fullsize
