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Exterior/Inside Removable Storm Windows.
These exterior windows excel in situations where panels need to be movable or operable from the interior for ventilation, egress, or cleaning. Used typically for wood windows, they provide sash protection, as well as added security.
- The Historic One Lite (HOL) series is designed to be “invisible” – when painted the same color as the existing sash. Existing sash should be operable, to permit removal and/or cleaning from the interior. There is no hardware on the exterior. Typically, one or two panels are removable from the interior, and are secured by perimeter clips.
- The Allied One Lite (AOL) series is used where the top sash of a double-hung is not operable, but the bottom panel needs to be inside-removable. The upper panel is outside-removable, and “invisible clips” (flush) are available for the perimeter.
- The Bank One Lite (BOL) series is used where no master frame is desired. The bottom panel is inside-removable, and the upper panel is removable to the exterior.
All of the above series’ are available in a wide variety of glazing materials up to 3/16”, – as well as a full range of window film. Custom colors, custom shapes, screens, and glazing muntins are typical options. Mounting stops can be provided to adapt to field conditions.
Primary Uses: All of the above series are designed for use with existing double-hung windows. The Historic One Lite (HOL) is also ideal for in-swinging wood or steel casement windows. Custom designs for all series can be developed for all field conditions, and styles of existing windows.
Interior Storm Windows.
Interior storm windows excel in situations where secondary glazing is needed for fixed windows or where an operating interior storm window is needed because historic standards do not permit an exterior storm window. Ease of cleaning, high-rise buildings, large windows and complex openings are among the many reasons to consider an interior storm window.
- The Magnetic One Lite (MOL) series is designed for openings where ventilation is not a concern. The single panel is easily removable for cleaning or painting, -or in the event that ventilation or egress is required.
- The Stacked Magnetic One Lite (MOL-ST) series is designed for larger fixed openings, where the unit is made up of two (2) or more removable (stacked) panels.
- The Operating Magnetic One Lite (MOL-OP) series provides a vertically operating bottom panel, -for ease of ventilation. The top is fixed, -but the entire unit is easily removable for cleaning or painting. This model is also available with an interior operating screen.
- The Monumental Magnetic One Lite (MMOL) series is designed as a single removable panel for very large openings. It is typically glazed with (5/32”) or (3/16”) glass, and has special heavy-duty lift handles.
- The Slide-A-Way (SAW) series provides two (2) or more sliding panels, and is typically used where steel casements are involved. They provide quick ventilation, and are easily removable for cleaning.
- The Allied One Lite (AOL) series is designed for window openings where a permanently-installed master frame, with one or more removable glass panel inserts is appropriate. “Invisible clips” (flush), or standard swivel clips are used on the perimeter of panel(s), to secure the panel(s) in the master frame. Available in a wide variety of glazing materials up to 3/16″, – as well as a full range of window film.
- The Bank One Lite (BOL) series is valuable where the windows are not large, and the sill depth is very limited. The single panel lifts out and is secured at the sill.
All of the above series are available in a wide variety of glazing materials up to (3/16”), as well as a full range of window film. Custom colors, special shapes, screens, and glazing muntins are typical options. Mounting stops can be designed to adapt to field conditions.
Primary Uses: The above series can be utilized for every type of existing window, including hopper and horizontally-pivot units.
Aluminum Storm Window Advantages.
The energy-saving benefit of aluminum storm windows, or secondary glazing, has been well known for many years. Normally, the energy reductions will re-pay the cost of the storm windows in (3-6) years. Other major benefits of aluminum storm windows are sometimes free, but always important. These include sound reduction, UV reduction, increased comfort, reduced condensation, sun control, sash protection and security.
The most frequent reason for the addition of interior or exterior storm windows is energy conservation and the resulting reduction of heating and cooling costs. Industry guidelines indicate that the addition of a storm window to an existing single-glazed window will reduce the energy loss through the window area by approximately 50%. This savings applies to both heating and cooling.
The energy efficiency of windows is normally measured using a U-Value, which is the “tendency” of heat energy to flow through the total window system. For example, the U-Value of a standard single-glazed wood double hung window is about 1.12. The addition of a storm window will reduce that U-Value to about .50-.58, depending on the type of storm window used, thus the 50% reduction in energy losses.
Storm windows are highly effective because they provide an insulating air gap to reduce “conduction” and an additional airstop to reduce “infiltration.”
Various glazing materials can reduce the U-Value even further, but at least 80% of the energy savings comes from having the basic storm window there to provide “secondary glazing.” The most popular energy-saving option is low-e glass, which reflects heat back into the building in the winter and back outside in the summer. Window films can result in significant energy savings, providing sun relief in the summer, and low-e benefits in the winter.
Sound reduction is the major “unexpected” benefit after installation of our storm windows. Many people are surprised at the dramatic reduction in outside noise.
Certain glazing materials provide superior sound reduction characteristics. The most popular of these is 3/16″ laminated glass, which has a PVB inter layer between two pieces of glass.
There are several methods for measuring sound characteristics, the most common of which is a Sound Transmission Class or “STC” rating. Our storm windows (with 3/16″ laminated glass) have been field tested on several projects and were found to meet the stated criteria for each project.
UV light is a major cause for fading of fabrics and damage to other valuable materials.
Certain glazing materials, when used in our storm windows, can provide up to 99% protection from some or all of the UV light. In our experience 3/16” laminated glass, UV filtering acrylic, and polycarbonate are the most popular glazing materials for this purpose. Each material has its advantages and disadvantages.
Stained Glass Protection.
Between the destructive forces of nature and the destructive forces of man, there is a current focus on security and protection for office buildings, government buildings, schools and residences. Windows, quite obviously, are particularly vulnerable to these forces. We provide a variety of glazing and product options to increase the level of protection for the window itself, the people and materials inside the building.
One of the most welcome benefits of storm windows is the reduction and perhaps elimination of condensation on the interior of the existing window. Any water or ice buildup is certain to cause damage to walls, sills and to the windows themselves.
Storm windows, or secondary glazing, provide insulation for cold windows and also reduce the air infiltration through the existing windows.
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