Kingspan U Value Calculator

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Welcome to the Kingspan U Value Calculator – a handy tool designed to help you determine the U value of insulation for your project. Whether you are an architect, builder, or homeowner, understanding the thermal performance of insulation is crucial for creating energy-efficient structures.

Formula: The U value is calculated using the formula: U Value = Thickness / Thermal Conductivity × Area.

How to Use:

  1. Enter the insulation thickness in millimeters.
  2. Input the thermal conductivity in W/mK.
  3. Provide the area in square meters.
  4. Click the “Calculate” button to obtain the U value.

Example: Suppose you have insulation with a thickness of 50mm, a thermal conductivity of 0.035 W/mK, and an area of 20 m². Enter these values and click “Calculate” to get the U value.


  1. Q: What is the U value? A: The U value measures the rate of heat transfer through a material. It indicates how well the insulation resists heat flow.
  2. Q: Why is U value important? A: A lower U value signifies better insulation, leading to reduced energy consumption and lower heating/cooling costs.
  3. Q: Can I use this calculator for any insulation material? A: Yes, as long as you have the thickness, thermal conductivity, and area information.
  4. Q: Is there a recommended U value for homes? A: Building codes often specify maximum U values. Check local regulations for guidance.
  5. Q: What does a high U value indicate? A: A high U value implies poor insulation, meaning more heat escapes, and energy efficiency is compromised.

Conclusion: The Kingspan U Value Calculator simplifies the process of determining insulation efficiency. Use this tool to make informed decisions for energy-efficient building solutions, contributing to a greener and sustainable future.

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