Can a south-facing orientation work in shaded areas?

Mitigating Shading for South-Facing Orientation

In cases where south-facing glazing is shaded, consider adjusting the overhangs to minimize the impact of shading. A 2-foot overhang can reduce the amount of direct sunlight during peak summer hours, but it may also block some winter sunlight. To achieve a balance, aim for an overhang depth of 1.5 to 2.5 times the height of the window. For example, a 4-foot high window would require a 6- to 10-foot deep overhang.

Optimizing Shading with Thermal Mass

Thermal mass materials like concrete, brick, or stone can help absorb and release heat during the day and night, reducing the impact of shading. When designing a south-facing orientation in a shaded area, consider incorporating thermal mass elements to absorb heat during the day and release it at night. Aim for a minimum of 10% to 20% of the floor area as thermal mass.

Designing for Shaded South-Facing Orientation

When working with a south-facing orientation in a shaded area, consider the 30-60-90 rule. This rule states that a 30-degree roof slope should have a 12-foot wide overhang, a 60-degree slope should have a 6-foot overhang, and a 90-degree slope should have a 0-foot overhang. By following this rule, you can create a more efficient design that balances natural light, heat gain, and shading.