DARA DOORS offers  the best thermal break aluminum for ultra-large bifold patio doors. Thermal break aluminum is a material that applies a polyamide bar  between the interior and exterior aluminum to stop heat transmission, also known as thermally broken aluminum.  Our thermal break aluminum products have a range of U-factors (heat loss rate) from 0.2 to 0.26 


Our bifold doors are a great solution for ultra-large openings, we can make it up to 16 door panels with a total of 46ft long and 10ft high. Our bifold doors can give you the best panoramic view and effortless entrance whether commercial or residential need.