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Before the late 70th, most American homes featured single-pane windows, and the only way to prevent drafts and air leakage was to install additional storm windows. These days people who are forced to choose between installing replacement and storm units often opt for the latter. The reason for that is their affordability and better energy performance. Exterior storm windows block outside noise and keep moisture away from the central sashes. Besides, they protect the existing windows from pests infestation and resist corrosion. Modern storm windows are generally made of durable materials and come with sliding glass panels. That ensures their longevity and perfect energy-saving properties. If you decide whether to go for the replacement or storm window units for your home, our comprehensive guide is what you need to make an informed decision. Read on to learn what are the primary storm window types and functions. Besides, we show the difference between interior and exterior storm units and explain their installation process.
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Storm sashes are protective units mounted either on the outer or the inner side of the existing window panes. They might be applied to almost all types of windows with the only requirement to fit the measurements. Exterior units are commonly made of aluminum, plastic, and wood and are attached to the outer part of the primary window frame to withstand the elements and other external factors. Interior storm windows, in their turn, are made of rigid plastic, vinyl, metal foam, and acrylic and are attached to the inner part of the window frame. They're used to prevent drafts and leakage.
Storm windows are meant to ensure ultimate energy efficiency and thermal insulation without the need to replace the original units. They're commonly seen in regions prone to storms and high winds as they protect the main glass panes from hail and debris that might fly about during hurricanes. Besides, quality storm windows usually serve as the best alternative for homeowners who can't afford to install new windows.
Keep reading to learn about the storm sashes' construction, types, and functions.
In layman's terms, storm sashes serve as an extra layer over the existing window to enhance its insulation and protect it from the elements. However, these are not the only functions they can perform. Take a look below to find out what else you can avail yourself of installing storm windows:
As mentioned before, storm sashes are overlaid over the existing window, creating extra insulation layers. One layer is formed by a storm sash itself, and another by the air between the pane of the current home's window and a storm one. As a result, you get a reliable solution to boost the energy-saving properties of your home windows without overpaying for the new replacing units.
As their name implies, storm windows are made to protect the central units from storms and rough weather. They safeguard panes from hail, airborne debris, tree branches, and other elements that can break the glass during the storm. Consider installing exterior storm windows if you live in an area with unpredictable weather. They will ensure your peace of mind and help to save hundreds of bucks on costly repairs.
Storm sashes are commonly installed instead of replacement units to prevent air leakage and lower spending on electricity. According to the Department of Energy, storm units can save up to 30% on utility bills depending on the annual energy consumption.
Storm windows make your house a fortress, reducing the options for intruders to come inside. They cannot substitute an alarm system but can become a great addition to it. Add the extra layer of protection to your existing window units to prevent people with ill intent from accessing your property.
Another advantage of the exterior storm window is that it blocks sounds transferred through the panes. This soundproofing function goes both ways - for noise coming from the outside and noise within your house that might travel out. Storm windows are reasonable to install in busy neighborhoods where noise pollution is extremely high.
Storm sashes come in different types depending on their mounting, tracking, as well as frame and glass options. Take a look at their classification to decide what you need for your home:
These units fit into the outer side of a window frame. They enhance the home's curb appeal, prevent heat loss, and protect the existing windows from high wind, stormy rain, and hail. Exterior storm windows do not possess insulating features like their interior counterparts because weep holes direct the accumulated moisture out. They are available with wood, vinyl, and aluminum frames and are commonly equipped with glass panes made of standard, tempered, or Low-E glass. Windows of this type are installed permanently, so you won't be able to take them off every season.
Exterior storm windows come in various configurations, including:
Now when you know how exterior storm windows work, let us highlight their key advantages and drawbacks.
Interior storm units, or how else they're called storm window inserts, are pressed into the existing frame through magnets or flanges. They're fitted with weatherstripping to protect single-pane windows from drafts and leakage. Interior storm windows vary in construction and materials. Some units feature low-emissivity glass, and others are constructed from acrylic sheets or sturdy vinyl panels. Depending on your needs and the original windows' construction, you may want to install a double- or triple track to keep the interior unit in place. Triple-track storm window inserts come with two glass panes and a screen, while double-track ones feature one glass pane and a screen. Interior storm units are best for multi-story buildings where the exterior is hard to access.
Let us discuss the pros and cons of interior storm windows to get a clue about their functionality and see the difference between their exterior counterparts.
These window units are made of a solid piece of glass. They're fixed and serve as a great protective solution for decorative windows like the arched, picture, and other custom options that do not open. However, they're complicated to install and replace.
These storm units are also called disposable as they're not fixed and can be disassembled as unnecessary. They're often used during the coldest months and then removed in the early spring. They come as single acrylic panels fitting inside a primary window's pane. Besides, these units can be created using insulating films secured to the interior part of a window with adhesive tape.
This type of storm window is typically made from solid wood and covered with a moisture-resistant coating. They can be hung at the top of the window with hooks or attached to the frame with clips. They can be dismantled by the end of the cold months and then reinstalled in the next season. Wood storm windows that come with Low-E glass provide the highest energy efficiency.
Vinyl is probably the best material for all types of windows, including the storm ones. It's affordable, lightweight, and nearly upkeep-free. However, their drawback is low resistance to high temperatures and direct UV rays. Vinyl storm units heat up quickly, which may result in cracking and warping.
Storm units made of aluminum are widely used in hurricane-prone areas. They're highly durable and can easily withstand weather calamities. Besides, they come with a corrosion-resistant coating that ensures their longevity and smooth operation. They're installed on the existing window's casing or screwed into the frame. You can find aluminum storm units with standard or Low-E glass panes. Besides, they come in a variety of colors and configurations.
Installing storm windows is a reliable solution to postpone replacing the existing units if they're drafty, leak-prone, or near the end of their service life. They're much more affordable than new replacement windows, especially those made of sturdy materials and feature two or three panes. However, their weatherproofing properties are not worse than top-of-the-line double-pane units offer. So, if you want to save yourself the bother of repairing and replacing your old window units, consider shopping for storm windows.
Depending on the frame material and configuration, you should expect to pay from $170 to $450 per secondary window. Single-pane windows with vinyl frames will cost you about $170, while the price of double-hung wood units may rise to $430. On top of that, calculate labor costs to get an accurate estimate. Depending on the window size and its operational principle, installation is expected to cost from $80 upwards. The rates on replacement services range from $100 to $240 per standard-sized storm window. However, the price might be higher depending on the material and level of the window's deterioration.
If you want to learn how much it will cost to install storm windows in your house, leave your request on MyHomeQuote. As soon as your request is processed, you will be provided with clear-cut estimates from local contractors specializing in storm window installation & replacement.
Interior storm sashes are pretty simple to install. You don't need any special tools to mount storm windows, just a caulk gun, a drill, and a paint scraper. All it takes is to push sashes into place and fix them. Removing interior windows is as simple as installing them. However, we cannot say the same about exterior storm sashes. If you live in a multi-story house, installing them might be life threatening. Besides, exterior storm units require at least basic handyman skills to mount them right. You should be able to predrill holes in the existing window frame and firmly attach a storm sash to it to avoid gaps.
To save yourself a headache and ensure airtight installation, consider hiring a professional window contractor to do the job. It won't cost you much, yet you can expect a professional service covered by a warranty.
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