Enter the amount of heat passing through the window or other material and the amount of heat that would pass through a clear glass of the same size into the calculator to determine the shading coefficient.

The following formula is used to calculate the shading coefficient.

SC = Ht / Hc

Variables:

• SC is the shading coefficient (no units)
• Ht is the amount of heat passing through the window or other material (BTU/hr)
• Hc is the amount of heat that would pass through a clear glass of the same size (BTU/hr)

To calculate the shading coefficient, divide the amount of heat passing through the window or other material by the amount of heat that would pass through a clear glass of the same size. A lower shading coefficient indicates better performance in reducing heat gain.

## What is a Shading Coefficient?

A shading coefficient is a measure of the amount of heat passing through a window or other transparent or translucent material compared to the amount of heat that would pass through a clear glass of the same size. It is used in building design to help determine the energy efficiency of a structure. A lower shading coefficient indicates better performance in reducing heat gain.

## How to Calculate Shading Coefficient?

The following steps outline how to calculate the Shading Coefficient (SC).

1. First, determine the amount of heat passing through the window or other material (Ht) in BTU/hr.
2. Next, determine the amount of heat that would pass through a clear glass of the same size (Hc) in BTU/hr.
3. Next, gather the formula from above: SC = Ht / Hc.
4. Finally, calculate the Shading Coefficient (SC).
5. After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem:

Use the following variables as an example problem to test your knowledge.

Amount of heat passing through the window or other material (Ht) = 120 BTU/hr

Amount of heat that would pass through a clear glass of the same size (Hc) = 80 BTU/hr