Option 3: Daylight Measurement
Option 3: Daylight Measurement
Daylight simulations may add an upfront cost but they offer fast payback in the form of effective daylighting strategy selection resulting in reduced energy costs.
Daylight simulations may add an upfront cost but they offer fast payback in the form of effective daylighting strategy selection resulting in reduced energy costs.
Simulation is the only way to account during the design phase for daylight designs that have many variables such as the use of lightshelves and light-colored interior finishes. The Glazing Factor Calculation path (Option 1) takes into account only walls,
Simulation is the only way to account during the design phase for daylight designs that have many variables such as the use of lightshelves and light-colored interior finishes. The Glazing Factor Calculation path (Option 1) takes into account only walls, windows, floor and ceiling areas, and the measurement path (Option 3) will not help inform design as much.
Simulation makes documentation easy by clearly indicating compliant areas.
Simulation makes documentation easy by clearly indicating compliant areas.
Coupling daylight modeling with energy modeling can help project teams make effective decisions about daylighting as it relates to other strategies like thermal massing, window area, window efficiency, and shading.
Coupling daylight modeling with energy modeling can help project teams make effective decisions about daylighting as it relates to other strategies like thermal massing, window area, window efficiency, and shading.
Use daylight simulation software to adjust daylight design as needed before it is finalized.
Use daylight simulation software to adjust daylight design as needed before it is finalized.
Option 2: Daylight Simulation Model
Option 2: Daylight Simulation Model
This compliance path does not require modeling and can still help inform decisions during the design phase. However, the documentation and calculations can be complicated and time-consuming.
This compliance path does not require modeling and can still help inform decisions during the design phase. However, the documentation and calculations can be complicated and time-consuming.
Confirm glare control exists for each window.
Confirm glare control exists for each window.
More natural light is transmitted through glazing with higher VLT values, but a higher VLT value tends to correlate with a higher solar heat gain coefficient (SHGC). Assess the optimal balance of these values, along with U-value, based on the project’s cl
More natural light is transmitted through glazing with higher VLT values, but a higher VLT value tends to correlate with a higher solar heat gain coefficient (SHGC). Assess the optimal balance of these values, along with U-value, based on the project’s climate and heating and cooling needs, as well as the orientation of each elevation. These values are available on manufacturers’ specifications.