by Matt Zielenski
September 10, 2019
Windows and doors – demand for which hit $27.6 billion in the US in 2018 – are an integral part of any home or commercial structure. They enable entry and egress, provide access to light and air, and, in many cases, can improve the exterior appearance of a property.
Beyond these functions, construction professionals and consumers understand that windows and doors also play a crucial role in improving the energy efficiency of a building.
Traditionally, windows and doors have served as the main culprits in building energy loss, as their frames would allow warm or cool air to escape, while their glazing could allow sunlight to create uncomfortably warm interiors – a particularly important consideration for much of the southern half of the US.
In response to this, the US Department of Energy – in conjunction with manufacturers and other industry participants – developed the ENERGY STAR program, which established minimum standards for energy efficiency. ENERGY STAR standards are based on local climate conditions, ergo:
The ENERGY STAR program has proven incredibly popular among manufacturers, contractors, and consumers – especially homeowners. ENERGY STAR-compliant products accounted for about 80% of residential windows, entry door, and patio door demand in 2018 and will continue to dominate these market segments going forward. Windows and doors that meet ENERGY STAR criteria often include such features as:
Entry and patio doors that are compliant with ENERGY STAR guidelines often have:
While commercial windows and doors are not included in the ENERGY STAR program, manufacturers of these products have also worked to improve their energy efficiency – so much so that such innovations like glass-filled multiplane glazing and low-e compounds are common in the US. However, given the prevalence of metal products – which are highly susceptible to heat loss – in commercial structures, it can be difficult to achieve similarly high levels of energy savings.
In addition to glazings, coatings, and insulated foam cores, commercial window and door manufacturers have adopted other features to boost their products’ energy efficiency. These include:
For more information about the size and growth of the US windows and doors market, check out The Freedonia Group’s new study, Windows and Doors. This study analyzes the US window and door market by product, material, market, and geographic region in value terms at the manufacturers’ level (i.e., excluding the value of features and services added between the manufacturer and end user). Historical data for 2008, 2013, and 2018, as well as forecasts for 2023 and 2028, are presented in US dollars.
Window and door demand is segmented into the following product types:
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