RISC Presents How to Keep Your Home Cool This Summer
01 Mar 2022Corporate
Thailand’s Climate Doesn’t Provide “Thermal Comfort”
Thailand’s temperatures of 30-35°C during the day and 25-30°C at night are outside normal “thermal comfort” of 22-27°C. The weather is hot and humid almost all year. But we can alter the environment around our home by creating shade, planting grass and trees, so transpiration cools the air.
What Makes Your Home Hot
Heat from the weather accumulates in floors, walls, roofs, and with glass. That’s why air conditioners need to work hard to cool materials too.
Align with the Sun
- The sun rises in the east and sets to the west.
- The sun is toward the north during May-August (4 months)
- The sun is toward the south during January–April and September–December (8 months)
- Winds can come from every direction, but blow regularly at 2 times during the year:
2. Winds tend to blow northeast and north during October–January
3 Tips for a Comfortable Home
1. Curate the Surroundings – You can reduce heat buildup from the ground by avoiding concrete. Avoid paving to the south and west, where the sun is strongest. Plant foliage and big trees for shade. Evaporation from water features around the building like fountains, waterfalls, water sources can create a cool breeze.
2. Align the Building – Increase shade by designing the shape of the house and the surface area of walls, roof, and glass. West- and east-facing walls should be minimized. Walls and windows should face to the north and south as much as possible to receive the least sunlight from the north and the most wind from the south.
3. Select Insulating Materials – Walls, roofs, and glass are key to heating or cooling. Materials must not absorb heat and moisture and should have good insulating properties to stop heat building up, to reduce transfer of heat from outside, and to minimize condensation, which can cause mold, for the comfort and well-being of residents.
The Department of Alternative Energy Development and Efficiency recommends the following energy-saving and eco-friendly measures:
- At least 50% of the land area should be open.
- At least 70% of the land area should covered by plants.
- At least 75% of the land area should be water permeable.
- At least 25% of the land area should be open.
- At least 50% of the land area should be covered by plants.
- At least 75% of the land area would be water permeable.
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