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Where Heat is Lost in Scottish Homes: The Complete Breakdown

10 min read
8 January 2026
Scottish Energy Efficiency

Quick Answer

In a typical Scottish home, heat escapes through: walls (35%), roof (25%), windows (20%), floors (10%), and draughts (10%). Older properties lose significantly more through single-glazed windows. Addressing the biggest heat loss areas first provides the best return on investment.

Understanding where your home loses heat helps prioritise improvements for maximum impact and savings.

In This Article

  • Key facts and figures
  • Real Scottish examples
  • Common questions answered
  • Next steps and resources

Related Calculators

These figures are based on real Scottish systems we've installed.

Frequently Asked Questions

Part of our Windows & Thermal Efficiency guide

Understanding heat loss, glazing options, and thermal improvements for Scottish homes

Visit Windows & Thermal Efficiency Scotland
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