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Energy Savings

energy3Interior Insulating Windows by Maine Glass work in conjunction with your existing windows to give you double frame and dual pane protection against energy loss.

Due to lower costs of product and installation, Maine Glass delivers a much faster payback—return on investment—than is available with traditional replacement windows. Previous projects have seen overall utility bills shrink by as much as 30%!!

Contact Maine Glass and receive a free energy analysis and payback projection for your building!


1176 Peachtree- Atlanta, GA

Energy Savings: 1776 Peachtree is a 214,000 square foot seven-story office building located in Atlanta, GA. The building is prone to and was experiencing severe solar heat gain resulting in high utility costs. Maine Glass was contracted to seal the building envelope and reduce solar heat gain. Installation of both Maine Glass Interior Insulating Windows and Maine Glass Between Glass Blinds achieved a 35% reduction in projected energy costs. Independent energy modelingestimated an annual savings of $87,037 with a 5.72 yearly payback.

Utility Rebate: Using the ComFen 5.0 energy model, Maine Glass workedclosely with the building owners, Denholtz and Associates and the local utility provider, Georgia Power toachieve an energy rebate. This incentive was part of a Custom Savings program offered by Georgia Power for capital improvements that demonstrate a measurable and veri_able reduction in energy consumption. The incentivefor this project was calculated at $0.08/kWh saved. Georgia Power conducted an extensive evaluation of the project along with the energy modeling and successfully awarded Denholtz and Associates a $40,000 rebate

Buckhead Centre

Buckhead Centre receives drastic modification at minimimal cost.

Buckhead Centre receives drastic modification at minimimal cost.

Kristina Kuehn, Director of Property Management for Wilson & Nolan Management Corporation, was faced with a difficult challenge. One of her properties, the popular Buckhead Centre located in Atlanta was constructed in 1964 with high-end materials and finishes. The windows were more than adequate for the period, however with increased energy costs and increased traffic the insulating qualities of the windows were not up to the challenge. Sirens and traffic noise, high utility bills and discomfort due to air infiltration were becoming unacceptable to tenants and owners alike.

Kristina conducted extensive research for a solution that would match the demands of the buildings’ image, the comfort and convenience of the tenants and the budget of the owners. The initial search investigated total window replacement. However concerns arose regarding cost of replacement windows, installation noise, scheduling, and potential damage to the high tenant finishes. “Due to the fact that we were 100% occupied, the process of removing the windows and replacing them would have been a logistical nightmare.” It became clear that total replacement was not the best solution.

Kristina’s research led her to a creative solution that would address the energy, comfort, and noise problems, without creating difficult installation issues that would disrupt and disturb the tenants. Maine Glass, a nationwide provider of window and energy solutions, was doing an interior insulating window installation at the nearby Piedmont Hospital. Kristina visited the facility to view the installation for herself. With this Maine Glass installation, the single pane exterior window was left in place, and an attractive interior window was custom retrofit inside of the existing prime windows. This solution upgrades the existing window beyond the energy efficiency available from replacement windows, without the necessity for total window replacement. After coming away impressed with product aesthetics and the ease of installation, Kristina contacted Maine Glass and together they were able to address all the problems faced by the Buckhead Centre for far less cost and hassle than total window replacement.

The installation “went very smoothly” states Kristina. “The disruption was minimal, especially compared to what would have occurred for full window replacement.” Having investigated both window replacement and the Maine Glass solution, Ms. Kuehn knew, “full window replacement was more expensive and would have caused major disturbance to our tenants. The interior windows cost less, look great, are very clean and fresh looking, and the energy savings have been huge.”

One of the unique features Maine Glass was able to provide the Buckhead Centre was Between-Glass blinds. According to Kristina, “The interior blinds are great. Tenants cannot yank them up or cause damage. In addition our cleaning of the blinds has become obsolete.” The blinds are operated by a “damage proof” cycle tested, slip clutch mechanism. Beyond the improved appearance and reduced maintenance, these between-glass blinds also provide significant solar heat gain reduction.

The solar heat gain reduction is just one aspect of the energy savings Maine Glass delivered. When asked what was the biggest surprise associated with the installation? “I did not expect such large cost savings in regards to power and gas. The windows are quickly paying for themselves.” The ‘Utility Costs’ graph demonstrates the utility costs at the Buckhead Centre both before and after the installation of the interior windows and between-glass blinds.

For more information about interior glazing options, contact Maine Glass at (888) 825-6975 or

Flower Hospital

Flower Hospital: Smooth installation did not interfere with hospital operations.

Flower Hospital: Smooth installation did not interfere with hospital operations.

Flower Hospital’s Lake Park facility in Sylvania, Ohio, was faced with a difficult dilemma: what to do with its old, single-pane aluminum windows. They were drafty, frosted up in winter, and needed new caulking. Replacing them was an option, but one that seemed daunting, both physically and financially. And the staff was adamant about not inconveniencing their residents with a lengthy construction project. So they installed interior insulating windows, which fit right over existing windows. The interior insulating windows were custom designed, supplied, and installed by Maine Glass.

“They were a fraction of the cost of replacement windows,” said Disbrow. “We received the full benefit without the full expense. And the windows were installed very quickly during our residents’ regular activities. They weren’t disrupted at all.”

The air space created between the original and the new Maine Glass pane provides insulation from both heat and cold. In addition, the frames of both windows provide a double barrier against air infiltration, which is reduced by as much as 90 percent; heat loss from conduction is reduced by 40 to 50 percent. The rigid polyvinyl chloride frame provides high thermal insulation, and the options Low-E glass and between-the-glass blind add 70 percent reduction in solar heat gain. The facility saved approximately 20 percent in its first summer with the windows–$6,200 in July alone. The windows also reduce external noise infiltration by more than 50 percent.

Patrick V. McNamara Federal Building

detroitIn the late spring of 2001, the General Services Administration awarded a contract for the installation of 2800 Interior Insulating Windows and between-the-glass blinds at the McNamara Federal Building in Detroit, MI. The between-the-glass blinds will provide a uniform, state-of-the-art look to both the interior and exterior of the windows.

The addition of the between-the-glass blinds and the interior insulating windows is predicted to save the federal government over four hundred dollars per day in utility costs. In addition, the Maine Glass project generated tremendous ‘first-cost’ savings on new air handling equipment. In order to update the HVAC systems, the McNamara Federal Building needed to replace all of the existing air handling equipment. Because the Maine Glass installation provided superior insulation, less extensive air-handling equipment was needed. This project, with an overall cost of $1.65million, generated instant savings of $1.58million by reducing the size and cost of the necessary air-handling units!!

Interior Insulating Windows by Maine Glass work well with Executive Order 12902 mandating that all Federal agencies reduce their buildings energy usage by 30% by the year 2005. The mandate requires that the source of the reduction must provide less than a 10-year pay back. Maine Glass offers a free “Energy Evaluation” that will determine the anticipated energy savings after the windows or windows and blinds are installed.





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