A different approach to removing the lines between indoors and out. When open, these modern balcony bi-fold door fold up to beautifully frame your view. When closed, they create a stately wall of light.
Sliding patio doors aren’t airtight. They allow indoor air to leak outside and vice versa. Sliding patio doors aren’t the only doors that leak air, however, as all doors aren’t airtight. Proper sealing will help reduce this problem.