The formula to calculate Roof Temperature (RT) is:
\[ RT = AT + 25 \]
Where:
Roof temperature is an estimate of how hot the surface of a roof can get in direct sunlight. It is typically higher than the outside air temperature due to the sun's rays heating the roof material. The formula assumes that the roof temperature is 25°F higher than the outside air temperature, a common estimate for sunny conditions.
Let's consider an example:
Using the formula to calculate Roof Temperature:
\[ RT = 85 + 25 = 110 \, \text{°F} \]
This shows that with an outside air temperature of 85°F, the roof temperature would be approximately 110°F.