Dear Mr. Walker, In this part of the world we don't heat our houses, except once in a while with a small portable electric heater or some firewood. Our country is hot enough. However, our buildings are designed in a way that most roofs take a triangular shape to allow rain water to flow down to the ground.
Windows are wide to allow enough air circulation.
The buildings use materials that can easily expand and contract with changes in heat. Zambia has had heavy and almost continuous rainfall in the past few weeks. This is common at this time of the year, anyway. The common problems we experience at this time of the year, in terms of transport, is that most of our roads develop potholes, some become slippery, and others muddy and impassable. Potholes on and the slippery nature of the tarred roads cause many traffic accidents at this time of the year.