passivehaus . 3.20.09. positive vibration
DESCRIPTION
Brief simple intro to PassivhausTRANSCRIPT
Passivhaus
building technology for a building technology for a sustainable futuresustainable future
Passivhaus Defined
Passivhaus is an integrated design system.
Defined and verifiable parameters
Passive House Requirements:
Annual Heating/Cooling Energy Demand (per net floor area):
≤15 kWh/(m2a) - ≤4750 Btu/ft2
Annual Total Primary Energy Demand (per net floor area):
≤120 kWh/m2 - ≤11.1 kWh/ft2
Air Leakage @ 50 Pa
n50≤0.6 ACH - n50≤0.1 CFM
Passivhaus Advantages
100% outside air with MERV13 filtrationmin 64°F surface temp = comfort
Thermal bridge free construction eliminates condensation
No MOLD!
Bathed in natural lightQuantum leap in energy efficiency
Rigorous quality control and verificationZero energy achieved with minimal expense
Passivhaus History
Lo-Cal House 1974Saskatchewan Conservation House 1977Canada sponsors the R2000 - 1982-83 Rocky Mountain Institute in Snowmass, Colorado in 1984Kranichstein, Germany 1990The year the world changed 1973
Passivhaus Performance
Passivhaus and . . .
Insulation optimization with air-tight construction & no thermal bridgesBalanced - constant, low velocity, 100% fresh air, with high efficiency heat exchangepassive heating in heating season, with heat gain controlled by shading in cooling season BalancedIntegrated design and PHPP: the passive house planning process passive,
Passivhaus basics
Passivhaus basics
Building design planned with a Certified Passive House Consultant
Design verified by PHIUS
Construction air-tightness verified
Post occupancy verification
If it’s not certified, it’s not a Passive House
Passivhaus why??
0102030405060708090
100
Residential &Commercial Buildings
Everything Else(industry, travel,
agriculture etc…)
Drivers of Climate Change
0102030405060708090
100
BuildingMaterials
Contribution
BuildingOperation
Contribution
Building Drivers
Passive House is the most rigorous approach tackling this predicament and certifying it.
Building energy use is a major contributor to the climate change energy emergency.
Passivhaus and Climate Change Reference
Passive House
www.passivehouse.us
www.passivehouse.com
www.e-colab.org
www.passive-on.org
www.cepheus.de
Climate Change(Easiest to find by copying each into Google)
A Sample of recent articles and reports:
- Scientists: Pace of Climate Change Exceeds Estimates, February 15, 2009 by Kari Lydersen, Washington Post
- Met Office warn of 'catastrophic' rise in temperature, Dec 19, 2008 TimesOnline
- Has the Arctic melt passed the point of no return?, Dec 16, 2008 By Steve Conner, The Independent.
- Permafrost threatened by rapid melt of Arctic sea ice, June 10, 2008, American Geophysical Union
- Oceans are ‘soaking up less CO2’, Oct 20, 2007, BBC News Online
- Science: Global warming is killing U.S. trees, a dangerous carbon-cycle feedback, Jan 23 2009 post by Joe Romm, Climate Progress
• Best Climate Change Blogs:
www.climateprogress.org, www.realclimate.org
• Best Climate Change Book:
With Speed and Violence: Why Scientists Fear Tipping Points in Climate Change, 2007 By Fred Pearce