While the use of the veranda was previously used only for storage and laundry drying, more and more people decorate the veranda with their own space, such as study space, hobby space, home cafe, and flowering plants, and use the veranda garden to enjoy relaxing and healing time.

Under the conditions that fit, a folding door that opens more than 90% can be constructed and used as a living room space extended to the veranda if necessary. You can feel wide openness by constructing a convenient and practical folding door, but you can speed up the circulation of air through the ventilation and ventilation of the house.

A folding door that is more insulating prevents the outside temperature from entering the room once more to catch the lost heating energy, reduce heating costs and kill two birds with one stone. You can see the same effect not only in winter but also in summer when you have to use air conditioning energy.