Enter the total solar gain and the incident solar radiation into the Calculator. The calculator will evaluate the Glass G Value. 

Glass G Value Formula

G-V = SG+ ISR

Variables:

  • G-V is the Glass G Value ()
  • SG is the total solar gain
  • ISR is the incident solar radiation

To calculate Glass G Value, simply sum the total solar gain and the incident solar radiation together.

How to Calculate Glass G Value?

The following steps outline how to calculate the Glass G Value.

  1. First, determine the total solar gain. 
  2. Next, determine the incident solar radiation. 
  3. Next, gather the formula from above = G-V = SG+ ISR.
  4. Finally, calculate the Glass G Value.
  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.

total solar gain = 47

incident solar radiation = 89