Passive Solar Shading: Winter vs. Summer
By DIY Eco Homes | Published: 6/18/2025
Explore how passive solar shading can enhance comfort and reduce energy costs year-round through smart design strategies.
Passive Solar Shading: Winter vs. Summer Want to save on energy bills and stay comfortable year-round? Passive solar shading is the key. It uses smart design to manage sunlight, keeping your home cool in summer and warm in winter - without relying on mechanical systems. - Summer Shading: Blocks up to 90% of solar heat, reducing cooling costs by 5–25%. - Winter Shading: Maximizes sunlight to cut heating costs by 10–40%. - Key Tools: Fixed overhangs, adjustable awnings, landscaping (like deciduous trees), and external blinds. - Window Orientation: South-facing windows are ideal for both seasons, while east/west windows need extra shading. Quick Comparison | Aspect | Summer Shading | Winter Shading | |---| --- |---| | Goal | Reduce heat gain | Increase solar heat gain | | Methods | Overhangs, awnings, trees, external blinds | South-facing windows, thermal mass, trees | | Energy Savings | Cuts cooling loads by 5–25% | Saves 10–40% on heating costs | | Window Focus | East/west windows absor...
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