How to cool a house without air conditioning
You don't always need more A/C. With the roof, shade and moving air, you can get the house close to comfortable without turning on a unit.
Cool the roof (light color or reflective coating, ceiling, radiant barrier), shade sun-facing windows from the outside, and move air with fans and cross-ventilation when there's a breeze. These measures bring the interior closer to 26 °C comfort without continuous power draw See.
Priorities, from highest to lowest return
Cool the roof
The highest-impact-per-dollar measure on a metal roof.
Shade sun-facing windows
Eaves and awnings stop the sun before it hits the glass.
Move the air
Fans and cross-ventilation when there's a breeze.
Seal air-conditioned rooms
Only in rooms with A/C, so you don't lose the cold air.
Now you understand why your house gets so hot.
What's left is the specifics: which intervention makes sense for your home. Gallardía diagnoses and installs residential thermal solutions in Panama.
◆ Sources for this page
Every important claim links to its evidence. Tap to see the source, its context and its limits: Standard Cool roof MiAmbiente. Full bibliography in the evidence library.