An airtight house can be constructed by using W-PC(Wall Pre-cast Concrete) construction method that utilizes sturdy concrete panels. You can live free from the worry of roof leakages. In addition, this method of construction provides quality sound insulation to keep out any noise coming from your neighbors, as well as tough walls for extra security. Another benefit is that by using this method we can construct houses very quickly.

Fierce tropical storms put your home at risk not only to leakages, but to humidity as well. Humidity can decrease the durability and comfort of your home. By using water resistance materials in every nook and cranny of the building, you can keep your home safe from roof and leakages. In addition, thanks to quality Japanese construction techniques, you can block rain from entering around sliding window frames, ensuring that your home is always protected from rain. This design takes the durability of the entire building into consideration.