Double-Hung Windows Part One: An Overview

The main difference between double-hung and single-hung replacement windows is their unique opening and closing ability. A double-hung window has two operating sashes that move up and down to allow ventilation on the window frame top, bottom or both.

Double-Hung Windows Part One: An Overview

In the first part of this two-part blog, Kroll Construction, your local roofing and window company, discusses what makes double-hung windows work.

Double-Hung Windows: An Introduction

They are convenient and are efficient in ventilating a room or a whole home. They also offer high levels of energy efficiency that so many homeowners and business owners today demand. Double-hung windows have been around for centuries and are still one of today’s most common types of windows in the United States.

Double-Hung Framing

Four different frame materials–vinyl, fiberglass, aluminum and wood–are available for double hanging windows. The most affordable are vinyl windows, but they tend to wear out quickly and provide the lowest level of support.

Fiberglass windows are more expensive for window replacement but feature one of the best combinations of strength and insulation. Meanwhile, aluminum frames are known to be very strong and weather-resistant, but they allow a little more thermal energy than the other options to pass through the frame. Finally, wooden window frames are the bunch’s most expensive and, while they are one of the most durable, are subject to more expansion and contraction than other types of windows, which lead to performance problems over time.


With tempered and isolated low-E glass, double-hung windows are available. Tempered glass is more durable and more efficient than standard glass to withstand impacts. This type helps maintain heat more efficiently than standard glass, often using argon gas trapped between the layers. Argon acts as an insulator, prohibiting heat transfer into and out of the room.

Double-hung windows have a lot to offer, but without proper installation, they’ll give you more issues than benefits. Whatever your roofing and window needs are, trust Kroll Construction, one of the area’s leading window companies. Call us today at (844) 688-9632 to request a free estimate. We serve homeowners in Detroit, Michigan.

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