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Low-cost design to cut indoor heat in Latin American cities (Level A1) — a house with a large yard

Low-cost design to cut indoor heat in Latin American citiesCEFR A1

7 Oct 2025

Level A1 – Beginner
2 min
78 words
  • Painting walls in light colours reduces indoor heat.
  • Insulating roofs well keeps home rooms cooler in summer.
  • Use medium-sized windows to control heat and light.
  • Align buildings with the sun's path for shade.
  • Researchers test design options with computer simulations for houses.
  • They study five cities in Latin America to compare.
  • Cities include Rio, São Paulo, Santiago, Bogotá and Lima.
  • The best materials are common and low cost.
  • Passive design uses natural ventilation, shading and direct sunlight.

Difficult words

  • climateWeather conditions over time.
  • changeTo make something different.
  • problemA situation that needs a solution.
  • housingHomes or places where people live.
  • designThe way something is made or arranged.
    designs
  • materialsSubstances used to make things.
  • studiedLooked closely at something to learn more.

Tip: hover, focus or tap highlighted words in the article to see quick definitions while you read or listen.

Discussion questions

  • How does climate change affect people?
  • Why are cheaper designs better for many people?
  • What other solutions can help with housing problems?

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