Have you considered something like Mitsubishi Lossnay[1]? The unit itself is not expensive. Also much cheaper to run than aircon and better for the environment.

Have you considered something like Mitsubishi Lossnay[1]? The unit itself is not expensive. Also much cheaper to run than aircon and better for the environment. We’re also in a high humidity environment with equally breezy construction standards and have struggled to keep the house mildew-free when we travel in Summer. We eventually settled on running a compressor-dehumidifier 24/7 during those times, but it’s not perfect. We considered installing a Lossnay to create a consistent positive pressure gradient and help with humidity exchange, although in our case construction - although not extensive - is tricky as we’re quite high up. You might be better off. [1] https://sg.mitsubishielectric.com/en/products-solutions/air-conditioning/lossnay/index.html https://sg.mitsubishielectric.com/en/products-solutions/air-...