Why does my house stay hot at night?

It's not your imagination: nights in Panama are warming faster than days, and your house releases at night the heat it stored during the day.

Insulate the roof →Ventilate properly

Quick answer

Two things combine: the roof and walls release at night the heat they absorbed during the day, and nighttime minimum temperatures are rising the most under climate change (at least +2.18 °C by 2070) See evidence. That's why ventilating at night no longer cools things down like it used to.

What to do

◆ Insulate the roof so less heat gets in during the day and there's less to release at night.
◆ Ventilate only when outside air is actually cooler; close up when it's still hot and humid outside.
◆ Use fans to move air over people, with minimal power consumption.

◆ Gallardía

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.

Request a diagnosis →Meet Gallardía

◆ Sources for this page

Every important claim links to its evidence. Tap to see the source, its context and its limits: MiAmbiente Cool roof Comfort. Full bibliography in the evidence library.

◆ Frequently asked questions

What people ask most

Why doesn't my room cool down at night?

Because the roof and walls release the heat they stored during the day, and because nights in Panama stay hot and humid. Insulating the roof reduces both effects.

Does leaving the windows open all night help?

Only if the outside air is cooler than the inside. If it's still hot and humid outside, you just let in moisture without cooling down. A fan usually helps more.

◆ Keep reading

Related paths

Insulate roof

Insulating the roof

The underlying fix.

Read →

Ventilation

Ventilating properly

When it helps and when it doesn't.

Read →

No A/C

Without air conditioning

Low-power comfort.

Read →