PERFORMANCE WHEN CLOSED
MATTERS MOST
 

Large openings are easy to design and there are many options to choose from. When selecting a product that best fits your project, how it performs when closed is important.

Air, Water, Structural, Thermal & Forced Entry Results

 

Please select a Sill from the following Options:

 

"An extra-long NanaWall opens up completely for great indoor/outdoor entertainment flow, providing a preponderance of natural light when closed. While only 200 square feet were added on, it feels like so much more."