4 ms·
It's very different for hot/dry vs hot/wet climates For hot/dry there's usually high day/night variation so the trick is often thick materials that don't let h
by twelvechairs 3y ago
It's very different for hot/dry vs hot/wet climates
For hot/dry there's usually high day/night variation so the trick is often thick materials that don't let heat penetrate for hours. Stone and mud brick are traditional concrete can be good too. Soil does this also. You then want small openings to prevent heat escape and plants or water for evaporative cooling. Traditional middle eastern and north African buildings are great for this.
Hot/wet climates are much harder. Generally you can't keep the temperature out, you can just put up a very broad roof and then encourage wind flow to your body (windows, electric or manual fans). Construction is usually much lighter (timber and steel)
Below is an example of climate analysis with passive strategies overlaid
https://www.researchgate.net/profile/Aasem-Alabdullatief/publication/321180035/figure/fig2/AS:562989399248896@1511238540573/Psychrometric-chart-for-Riyadh-from-Climate-Consultant-Source-modified-from-Climate.png https://www.researchgate.net/profile/Aasem-Alabdullatief/pub...
- notjoemama 3y agoFor hot/wet, use dehumidifiers in-doors. This allows your sweat to evaporate better allowing your body to better self regulate.
- sa1 3y agoA dehumidifier and an air conditioner are almost the same machine. For hot regions, it makes little sense to buy a dehumidifier and not an air conditioner.
- WirelessGigabit 3y agoThe air conditioner was invented to dehumidify air: https://www.energy.gov/articles/history-air-conditioning https://www.energy.gov/articles/history-air-conditioning The fact that it was done through cooling was merely a by-product.
- fy20 3y agoWe had AC installed in our bedroom precisely for this. Where I live it barely gets hot enough to warrant AC, but humidity in the summer is very high. Compared to a dehumdifier it's quieter, doesn't need emptying and has extra features (cooling / heating).
- bobthepanda 3y agoFor windflow it is also important to orient doors and windows so that there are direct paths for wind through the space. In a multistory house, an attic window so that hot air rises out the house. The modern American house usually lacks such thought.
- blackoil 3y agoFor hot/dry desert cooler work really well. They are low tech and low cost/power.