Roof Temperature Calculator

Estimate the temperature of your roof surface based on environmental conditions and roof properties

Input Parameters

Calculation Results

Calculation Formula

Roof Temperature (°C) = Ambient Temp + [(Solar Radiation × (1-Color) × 0.8) - 20] × (1 - e^(-0.5 × Insulation)]

Where:
Ambient Temp: Current ambient temperature
Solar Radiation: Solar energy hitting the roof
Color: Roof surface reflectivity (albedo)
Insulation: Thickness of roof insulation

Roof Temperature

-- °C

This calculation provides an estimated roof surface temperature based on typical conditions.

Roof Temperature Calculator Usage Guide

Learn how to use the Roof Temperature Calculator and understand its applications

How to Use This Calculator

  1. Enter the current ambient temperature in your location (°C).
  2. Input the solar radiation value for your area (W/m²). This can vary based on location and time of day.
  3. Select the roof color from the dropdown menu. Darker roofs absorb more heat.
  4. Specify the roof insulation thickness in meters (if applicable).
  5. Click the Calculate button to estimate the roof temperature.

Understanding Roof Temperature

The roof temperature is significantly higher than the ambient air temperature, especially on sunny days. This temperature difference can affect building energy efficiency, comfort, and material longevity.

Applications

  • Estimating cooling load for air conditioning systems
  • Designing energy-efficient roofing systems
  • Assessing heat buildup in attic spaces
  • Understanding material degradation due to heat exposure

Important Notes

This calculator provides a simplified estimation. Actual roof temperatures can be affected by additional factors such as wind, humidity, roof pitch, shading, and specific material properties.