1. Zero Energy Homes Goal: Regulate Heat Transfer
+ Reduce Energy Consumption
+ produce energy from renewable sources
= minimal, or zero reliance on power grid
- Thereby reducing cost

2. COLD WEATHER CLIMATES Dark Roof Passive Solar Heating Thermal Mass
R e g u l a t i n g H e a t T r a n s f e r
Dark Roof
Passive Solar Heating
Largest wall runs East  West
25 – 35 % of wall is windows
Frequently used rooms face south
Open floor plan
Thermal Mass

3. HOT WEATHER CLIMATES White Roof Radiant Barriers Over Hangs
R e g u l a t i n g H e a t T r a n s f e r
White Roof
Radiant Barriers
Over Hangs
Passive Solar cooling
Breeze acceleration
Thermal Chimney

4. General Heat Regulators
UV/IR reducing windows
Air ducts placement
Not in attics
oversized
Insulation
R -10 in Walls, R – 30 in Attics