And, the same properties that ensure vinyl's maintenance freedom also allow window designs that are easy to operate and clean. We also utilize the highest quality locking and operating hardware available. Our double-hung windows feature computer calibrated block and tackle balances and flush mounted camaction locks. This balance system is guaranteed to offer a lifetime of smooth window operation. Built tight to keep air out.
Air infiltration is a major cause of energy loss.
UniFrame sashes are double weatherstripped and double-hung and sliding windows feature full meeting rail interlocks. This method of construction creates a double barrier to air and water. Our casement windows are lined with two seals of specially designed weatherstripping which provides one of the lowest air air infiltration rates in the industry. This low air infiltration rate means UniFrame windows prevent drafts and keep you comfortable. Tests prove that UniFrame windows save energy dollars.