You have a job that calls for awning windows in a high velocity hurricane zone, a firm budget, and they need to be energy efficient. Is there a window out there that can meet all of these needs? Yes! The Bertha Impact Vinyl Awning Window is HVHZ certified, cost efficient (especially for retrofits), and have thermal walls that are a full 12% thicker than most other windows! Plus they carry the Energy Star rating, are Made in the USA Certified ®, and have the Good Housekeeping Seal.