Switchable glazings can help reduce energy usage. Switchable glazings can lower energy costs for cooling a home by reducing direct solar gains, especially in the summer. They can block UV rays and radiant heat (particularly useful for skylights) and lower cooling loads. In cooler northern climates, electrochromic windows can effectively eliminate the need for mechanical air cooling systems altogether.
By decreasing the solar heat gains, electrochromic windows can also help eliminate the need for window coverings such as shades or blinds. That means that homeowners can not only enjoy their surroundings more (keeping a room comfortable, and not too hot), but they can also enjoy their views during the day.
Switchable glazings can also protect a home's interiors from damaging UV rays, so that carpets, furniture, and artwork don't experience fading from the sun. Electrochromic windows also offer more control than windows that are photochromic or thermochromic (these are windows that turn opaque when exposed to light or warm temperatures).
While many might think that the electricity required to operate the switchable glazings is a negative attribute, manufacturers and supporters point out that the energy required to run the windows is minimal. Low-voltage products use less power than line voltage products. Plus, they use virtually no energy to maintain a clear state. Moreover, the energy that is saved by reducing cooling needs and energy expenditures far outweighs the energy use by electrochromic windows.
Solar powered windows go a step further, requiring no purchased electricity to operate the windows whatsoever. In either case, electrochromic windows do not make any other energy demands during their lifetimes – just what's necessary to make the switchable glazings functional.
What are the downsides to switchable glazings and electrochromic windows?
Electrochromic windows can reduce energy usage and sun damage, but they are complex windows that aren't exactly a piece of cake to install. Electrochromic windows that utilize electricity require a non-standard electrical hookup and unconventional wiring (including a switch). That means that homeowners may have to hire an electrician as well as a window installer, or a general contractor or other tradesman who can handle all facets of installation.
Switchable glazings are commercially available, but inconsistently. Few can be found at major retailers such as home improvement stores. Some are for residential use only, some are only available through the manufacturer or select vendors, and so on.
Probably the biggest disadvantage of all is the cost. Electrochromic windows cost significantly more than a standard window, as much as 2 to 3 times more. Liquid crystal glazing can add as much as $90 per square foot to the glazing! As with most 'new' technologies, the price point for these high-tech windows is expected to drop to more reasonable levels as supply and demand increase, technology improves, and manufacturing becomes less involved.
Tuesday, February 9, 2010
Switchable Glazing Windows
What is "switchable" glazing, and why is it useful?
Just the flip of a switch, and electrochromic windows can block the glare of the sun. Switchable glazing can change the light transmittance, transparency, or shading of a window. The flipped switch doesn't have to be literal – electrochromic windows can respond to a variety of cues, such as an environmental signal as well as an electric current.
Electrochromic windows can automatically monitor and control the amount of light and solar energy that can pass through a window, and this can translate into cost and energy savings for consumers.
Electrochromic windows do this by responding to external triggers such as an electrical control, or to natural stimuli such as sunlight and temperature. Once they receive a signal, they can change from transparent to tinted, just by applying an electrical current.
Homes with electrochromic windows and switchable glazing can practice daylighting control, glare control, solar heat control, and fading protection.
How does switchable glazing work?
Although new, there are already multiple methods for switchable glazing to work. One way is to darken windows by using a small electrical voltage on the window, and to lighten them by reversing (and removing) the voltage.
The electrochromic glazing has "memory," which means that once the tint has been initiated, the voltage doesn't have to be maintained. (An important point for the energy conscious.) During operation, light transmission can vary from 5% to 80%, and the film can even be fine-tuned to block out select wavelengths, such as infrared (heat) energy.
Another method uses something called a liquid crystal suspended particle device (SPD). This fancy-sounding gizmo contains molecular particles suspended in a solution between glass plates. These particles zoom around rapidly and collide in their natural state, and this activity effectively blocks the passage of about 90% of the light. When the particles are energized, they align swiftly and render the glazing transparent, letting the light in.
For those with energy (electricity) concerns, there are two types of solar-powered electrochromic windows, created by the National Renewable Energy Laboratory. As you would expect, these windows vary the tinting based on the amount of sunlight shining on them. Controlling the tint controls the amount of heat that enters through a window, so this development is probably particularly interesting to homeowners with skylights, or who are trying to reduce their electrical demands.
Another residential window with electrochromic glazing switches from clear to milky white via a liquid crystal glazing. This glazing is more about providing privacy by reducing transparency. It does not dramatically reduce the light transmission. However, this glazing requires a constant current to keep the glass in a clear state.
Just the flip of a switch, and electrochromic windows can block the glare of the sun. Switchable glazing can change the light transmittance, transparency, or shading of a window. The flipped switch doesn't have to be literal – electrochromic windows can respond to a variety of cues, such as an environmental signal as well as an electric current.
Electrochromic windows can automatically monitor and control the amount of light and solar energy that can pass through a window, and this can translate into cost and energy savings for consumers.
Electrochromic windows do this by responding to external triggers such as an electrical control, or to natural stimuli such as sunlight and temperature. Once they receive a signal, they can change from transparent to tinted, just by applying an electrical current.
Homes with electrochromic windows and switchable glazing can practice daylighting control, glare control, solar heat control, and fading protection.
How does switchable glazing work?
Although new, there are already multiple methods for switchable glazing to work. One way is to darken windows by using a small electrical voltage on the window, and to lighten them by reversing (and removing) the voltage.
The electrochromic glazing has "memory," which means that once the tint has been initiated, the voltage doesn't have to be maintained. (An important point for the energy conscious.) During operation, light transmission can vary from 5% to 80%, and the film can even be fine-tuned to block out select wavelengths, such as infrared (heat) energy.
Another method uses something called a liquid crystal suspended particle device (SPD). This fancy-sounding gizmo contains molecular particles suspended in a solution between glass plates. These particles zoom around rapidly and collide in their natural state, and this activity effectively blocks the passage of about 90% of the light. When the particles are energized, they align swiftly and render the glazing transparent, letting the light in.
For those with energy (electricity) concerns, there are two types of solar-powered electrochromic windows, created by the National Renewable Energy Laboratory. As you would expect, these windows vary the tinting based on the amount of sunlight shining on them. Controlling the tint controls the amount of heat that enters through a window, so this development is probably particularly interesting to homeowners with skylights, or who are trying to reduce their electrical demands.
Another residential window with electrochromic glazing switches from clear to milky white via a liquid crystal glazing. This glazing is more about providing privacy by reducing transparency. It does not dramatically reduce the light transmission. However, this glazing requires a constant current to keep the glass in a clear state.
Repalcing Your Wonderful Window Screen
Wood and metal frames require different approaches. If you are removing a screen from a wood frame, pry off the molding by starting in the center of a strip and moving toward the ends. Don't break the molding! Additional information on wood replacement windows.
You will also need to stretch the new screen fabric tight first in order to make sure the new screen lasts and performs well. To stretch the screen, buy some 1x2 stock longer than the width of the window, and some 1x4 stock that you can use to saw out wedges. Lay the frame down on a horizontal surface. Cut your new replacement screening a minimum of 1 inch longer and wider than the frame, and center the screen width over the frame.
Staple one end of the screen to the top of the frame, then take one of the 1x2 lengths and affix it firmly to your work surface just beyond the bottom end of the window frame. Stretch the rest of the screen over this 1x2 and nail another 1x2 to it, with the new screen in between.
Take the wedges you've made and place them between the edge of the 1x2 cleats and the bottom of the screen frame. Tap the wedges in to this space until the screen is taut. Now, staple the screen at the bottom of the frame, and then up along the sides, spacing the staples about an inch or two apart. Trim off the excess screen, and use brads to reattach the moldings. Countersink the brads, the fill the holes with wood putty.
Another way to attach the new screen, aside from using wedges, is with clamps and sawhorses. This method works better with larger windows, such as picture windows.
Take a couple of sawhorses and saw some 2x4s the same length as the screen, then lay them end to end across the sawhorses to create a rough frame. (Or lay a sheet of plywood across the sawhorses instead of the 2x4s.) Lay the stripped frame across the boards, and use C- clamps to hold the screen tight in the middle.
Lift each end of the frame and insert small 2x4 blocks. The objective here is to bow the ends of the frame upward, although this needs to be done gently so that you don't accidentally snap the frame.
Staple the screen in place, starting at the C-clamps in the center. When you're done, remove the 2x4 blocks at the ends, and the screen will be very taut! Replace the screen moldings, and you're ready to go.
Metal frames have a long, thin strip of material, or spline, that is sort of like a slat and helps hold the screen in place. This has to be removed first, and without kinking the metal frame. You can use a screwdriver to pry up and remove the spline. Examine the spline to see if you need to replace it; if you do, vinyl splining is a great choice, and is available in rolls of various widths.
You can use a square to check and see if the frame is still in decent shape, and to help you reshape the frame if it needs adjustments. For your replacement screen, you don't need as big a 'buffer' margin for metal frames as you do with wood – just cut your screen to the outside edges of the metal frame.
Next, take a screen installation tool (it looks like a pizza cutter and comes in various widths to match the frame channels) or the edge of a spline and force the screen's edges into the channel on the top and on one side, using short strokes. A putty knife will also do the job.
Now that two sides are attached, take a utility knife and cut the screening to fit the remaining two sides, using the outside edge of the channel as a guide. Then, using the same tool as before, force the screen into the channel on the last two sides.
Lastly, take your spline tool or putty knife to insert the spline into the channels, using short strokes. As the spline settles in, it will pull the screen taut. Trim any excess screening, if necessary.
You will also need to stretch the new screen fabric tight first in order to make sure the new screen lasts and performs well. To stretch the screen, buy some 1x2 stock longer than the width of the window, and some 1x4 stock that you can use to saw out wedges. Lay the frame down on a horizontal surface. Cut your new replacement screening a minimum of 1 inch longer and wider than the frame, and center the screen width over the frame.
Staple one end of the screen to the top of the frame, then take one of the 1x2 lengths and affix it firmly to your work surface just beyond the bottom end of the window frame. Stretch the rest of the screen over this 1x2 and nail another 1x2 to it, with the new screen in between.
Take the wedges you've made and place them between the edge of the 1x2 cleats and the bottom of the screen frame. Tap the wedges in to this space until the screen is taut. Now, staple the screen at the bottom of the frame, and then up along the sides, spacing the staples about an inch or two apart. Trim off the excess screen, and use brads to reattach the moldings. Countersink the brads, the fill the holes with wood putty.
Another way to attach the new screen, aside from using wedges, is with clamps and sawhorses. This method works better with larger windows, such as picture windows.
Take a couple of sawhorses and saw some 2x4s the same length as the screen, then lay them end to end across the sawhorses to create a rough frame. (Or lay a sheet of plywood across the sawhorses instead of the 2x4s.) Lay the stripped frame across the boards, and use C- clamps to hold the screen tight in the middle.
Lift each end of the frame and insert small 2x4 blocks. The objective here is to bow the ends of the frame upward, although this needs to be done gently so that you don't accidentally snap the frame.
Staple the screen in place, starting at the C-clamps in the center. When you're done, remove the 2x4 blocks at the ends, and the screen will be very taut! Replace the screen moldings, and you're ready to go.
Metal frames have a long, thin strip of material, or spline, that is sort of like a slat and helps hold the screen in place. This has to be removed first, and without kinking the metal frame. You can use a screwdriver to pry up and remove the spline. Examine the spline to see if you need to replace it; if you do, vinyl splining is a great choice, and is available in rolls of various widths.
You can use a square to check and see if the frame is still in decent shape, and to help you reshape the frame if it needs adjustments. For your replacement screen, you don't need as big a 'buffer' margin for metal frames as you do with wood – just cut your screen to the outside edges of the metal frame.
Next, take a screen installation tool (it looks like a pizza cutter and comes in various widths to match the frame channels) or the edge of a spline and force the screen's edges into the channel on the top and on one side, using short strokes. A putty knife will also do the job.
Now that two sides are attached, take a utility knife and cut the screening to fit the remaining two sides, using the outside edge of the channel as a guide. Then, using the same tool as before, force the screen into the channel on the last two sides.
Lastly, take your spline tool or putty knife to insert the spline into the channels, using short strokes. As the spline settles in, it will pull the screen taut. Trim any excess screening, if necessary.
More Maintenance for Your Replacement Windows
Weatherstripping
The weatherstripping in your windows is integral to their performance, and it must be inspected and cleaned regularly. Weatherstripping will deteriorate over time due to exposure, and when this happens it can be difficult to create an effective seal. Replacement weatherstripping can be found at a hardware store, or you can hire a professional specializing in window repair and replacement.
Hardware and accessories
Other window and door accessories – such as sash locks, operators, and patio door rollers – also need to be inspected regularly and replaced when not working properly. These components perform vital operational and security functions. Replace them promptly for your and your family's convenience and protection.
Pane and Hardware Repair/Replacement
Most manufacturers offer warranties on their windows, but even the best warranty will expire eventually. When that time comes and you find you need to replace or repair window and door components (or the windows and doors themselves), you'll find that hardware stores and home centers carry almost everything you might need: Sash locks, weatherstripping, screens, etc.
If you don't feel confident in your handyman skills, or just find it more convenient and reassuring to hire someone, countless window professionals in your area are capable of replacing the weatherstripping, repairing the sash, or replacing your windows.
This includes replacing the panes themselves. Today, most windows are outfitted with dual-pane insulating glass, which is more energy efficient. These panes, or lites, are usually divided by a spacer frame and sealed together. Over time, however, the seal may degrade, allowing the glass to fog. When this happens, the whole insulating glass unit must be replaced. An experienced DIYer can do this him or herself, but it isn't easy or advisable. Replacement by a qualified glazier is recommended.
Condensation
Homeowners sometimes notice and become concerned about condensation on their windows. Condensation occurs when the humid air near a glass surface becomes cool too rapidly. Water forms because the cool air is not able to hold as much water vapor as warm air.
Of course, condensation is natural and normal, even on your windows. The occasional appearance shouldn't cause any alarm. However, if you notice that condensation consistently forms on your windows, it indicates that there is an elevated humidity level in the home.
Frequent condensation on window panes is a reliable indicator of excess humidity, and your window glass is really just the most visible sign. Condensation forms on the coldest location on a wall, and that is usually a window. However, there are probably many other places where condensation might be forming, such as a mirror or a metal surface.
Why the excess humidity? Many everyday activities might be responsible. Inevitably your kitchen is a common culprit. You've probably noticed condensation on your kitchen windows while you were boiling water. Breathing, taking showers, washing dishes, and doing laundry are all activities that can raise the water vapor levels and contribute to your home's humidity levels.
You can't stop breathing, obviously, and not showering or doing laundry aren't good options, either. Proper ventilation is therefore essential. High humidity levels in a home can be destructive. Excess humidity can cause wallpaper and paint to peel. More importantly, it can contribute to mold and mildew growth.
Consistent condensation may also signal that your windows do not have an effective seal, and that there is too much air flow. Consider replacing your windows with more modern, energy efficient windows with tighter seals and special glass that reduces energy transference.
The weatherstripping in your windows is integral to their performance, and it must be inspected and cleaned regularly. Weatherstripping will deteriorate over time due to exposure, and when this happens it can be difficult to create an effective seal. Replacement weatherstripping can be found at a hardware store, or you can hire a professional specializing in window repair and replacement.
Hardware and accessories
Other window and door accessories – such as sash locks, operators, and patio door rollers – also need to be inspected regularly and replaced when not working properly. These components perform vital operational and security functions. Replace them promptly for your and your family's convenience and protection.
Pane and Hardware Repair/Replacement
Most manufacturers offer warranties on their windows, but even the best warranty will expire eventually. When that time comes and you find you need to replace or repair window and door components (or the windows and doors themselves), you'll find that hardware stores and home centers carry almost everything you might need: Sash locks, weatherstripping, screens, etc.
If you don't feel confident in your handyman skills, or just find it more convenient and reassuring to hire someone, countless window professionals in your area are capable of replacing the weatherstripping, repairing the sash, or replacing your windows.
This includes replacing the panes themselves. Today, most windows are outfitted with dual-pane insulating glass, which is more energy efficient. These panes, or lites, are usually divided by a spacer frame and sealed together. Over time, however, the seal may degrade, allowing the glass to fog. When this happens, the whole insulating glass unit must be replaced. An experienced DIYer can do this him or herself, but it isn't easy or advisable. Replacement by a qualified glazier is recommended.
Condensation
Homeowners sometimes notice and become concerned about condensation on their windows. Condensation occurs when the humid air near a glass surface becomes cool too rapidly. Water forms because the cool air is not able to hold as much water vapor as warm air.
Of course, condensation is natural and normal, even on your windows. The occasional appearance shouldn't cause any alarm. However, if you notice that condensation consistently forms on your windows, it indicates that there is an elevated humidity level in the home.
Frequent condensation on window panes is a reliable indicator of excess humidity, and your window glass is really just the most visible sign. Condensation forms on the coldest location on a wall, and that is usually a window. However, there are probably many other places where condensation might be forming, such as a mirror or a metal surface.
Why the excess humidity? Many everyday activities might be responsible. Inevitably your kitchen is a common culprit. You've probably noticed condensation on your kitchen windows while you were boiling water. Breathing, taking showers, washing dishes, and doing laundry are all activities that can raise the water vapor levels and contribute to your home's humidity levels.
You can't stop breathing, obviously, and not showering or doing laundry aren't good options, either. Proper ventilation is therefore essential. High humidity levels in a home can be destructive. Excess humidity can cause wallpaper and paint to peel. More importantly, it can contribute to mold and mildew growth.
Consistent condensation may also signal that your windows do not have an effective seal, and that there is too much air flow. Consider replacing your windows with more modern, energy efficient windows with tighter seals and special glass that reduces energy transference.
Maintaining Your Replacement Windows
If you want your windows to last as long as possible, you have to invest a little time and effort every year. It's a simple formula, much like changing your car's oil every 3,000 miles: The more attentive you are to your windows, the longer they will last and the better they will perform over time.
Don't forget that your home can lose up to 25% of its energy through its windows, so making sure the windows are in tip-top shape is definitely something you want to do. Most window manufacturers include care and cleaning instructions for their products. Follow their instructions to get the most from your windows!
Here are few of the most basic maintenance issues to focus on:
Clean surfaces
Take a clean, dry paintbrush and brush the dirt from the window tracks and sills at least once a year (especially in gliding windows, where dirt accumulates with gusto). Keep the track free of dead bugs, cobwebs, grime, and other detritus so that the window can continue to close and open easily, and form a tight seal when closed.
The glass, sash, and frame surfaces should also be kept clean. Avoid petroleum-based cleaners and solvents, however. Never use a razor blade, putty knife, abrasive pad, or other sharp (or scratch-causing) material, or anything that might dissolve or damage the finish. Be sure to read the manufacturer's instructions, and remember the golden rule – when in doubt, don't.
Keep the drainage system functioning
Windows and doors typically use a 'weep' system, where tiny 'weepholes' in the frame help to keep water from collecting in the tracks. Be sure the weepholes are not obstructed, or you'll have a problem the next time it rains. They are often covered by baffles, so be careful when cleaning – you don't want to damage the weephole covers.
Don't forget that your home can lose up to 25% of its energy through its windows, so making sure the windows are in tip-top shape is definitely something you want to do. Most window manufacturers include care and cleaning instructions for their products. Follow their instructions to get the most from your windows!
Here are few of the most basic maintenance issues to focus on:
Clean surfaces
Take a clean, dry paintbrush and brush the dirt from the window tracks and sills at least once a year (especially in gliding windows, where dirt accumulates with gusto). Keep the track free of dead bugs, cobwebs, grime, and other detritus so that the window can continue to close and open easily, and form a tight seal when closed.
The glass, sash, and frame surfaces should also be kept clean. Avoid petroleum-based cleaners and solvents, however. Never use a razor blade, putty knife, abrasive pad, or other sharp (or scratch-causing) material, or anything that might dissolve or damage the finish. Be sure to read the manufacturer's instructions, and remember the golden rule – when in doubt, don't.
Keep the drainage system functioning
Windows and doors typically use a 'weep' system, where tiny 'weepholes' in the frame help to keep water from collecting in the tracks. Be sure the weepholes are not obstructed, or you'll have a problem the next time it rains. They are often covered by baffles, so be careful when cleaning – you don't want to damage the weephole covers.
Climates for Window Replacement
U-Factor: The U-factor measures the rate of heat transfer, or heat loss. The lower the number, the greater the energy efficiency. U-factor ratings are typically between .20 – 1.20, and anything at or below .40 is considered energy efficient. Check to see if your state has a required minimum U-factor!
Visible Transmittance (VT): Visible Transmittance measures the amount of visible light that passes through a window. The VT range is 0 to 1, but most values are .3 - .8. The higher the VT value, the more daylight will enter the room.
Solar Heat Gain Coefficient (SHGC): The Solar Heat Gain Coefficient measures how well a window blocks the heat of the sun. Like VT, the SHGC value range is 0 to 1, but in this case the lower the number, the less solar heat the window transmits.
What does all this mean for that double-pane window purchase in your part of the country?
Northern Climate - In northern climates, look for windows with a U-factor of .35 or lower. If air conditioning demands are low, a U-factor of .40 is acceptable if the SHGC is .50 or higher. Some double-paned, Low-E windows have U-factors below .30.
If you want to decrease your heating costs during the winter, select the highest SHGC you can (for a cold climate) so that some solar heat transfers in and offsets your heating needs. The SHGC range for this climate is about .30-.60. If you're more concerned about your summer cooling requirements, choose a SHGC lower than .55.
North/Central Climate - Choose windows with a U-factor of 0.40 or less. The larger your heating bill, the more important a low U-factor becomes.
If you have higher-than-average (or higher than you'd like) air conditioning costs or suffer unduly from the summer heat, look for an SHGC of.40 or less. Moderate AC requirements mean you can go with an SHGC of .55 or less. Remember that windows with lower SHGC values help reduce summer cooling and overheating, but they also impede that free winter solar heat gain.
South/Central Climate - Windows with a U-factor of 0.40 or less are best. The higher your heating bill is, the more important having a low U-factor becomes.
Moderate air conditioning requirements can be met with an SHGC value of 0.55 or less. Don't go too low – keep that winter solar heat gain in mind. It's free heat!
Southern Climate - In warm climates like this, a low U-factor is very important. It's useful during cold days when you'd like a little heat, and it's also helpful during hot days when you want to keep that blistering heat out. In this climate type, however, a low U-factor is slightly less important than the SHGC value. Look for windows with a U-factor lower than 0.75 – preferably lower than 0.60.
The SHGC is the most important window property in warm climates. Shop for windows with a SHGC less than 0.40.
Visible Transmittance (VT): Visible Transmittance measures the amount of visible light that passes through a window. The VT range is 0 to 1, but most values are .3 - .8. The higher the VT value, the more daylight will enter the room.
Solar Heat Gain Coefficient (SHGC): The Solar Heat Gain Coefficient measures how well a window blocks the heat of the sun. Like VT, the SHGC value range is 0 to 1, but in this case the lower the number, the less solar heat the window transmits.
What does all this mean for that double-pane window purchase in your part of the country?
Northern Climate - In northern climates, look for windows with a U-factor of .35 or lower. If air conditioning demands are low, a U-factor of .40 is acceptable if the SHGC is .50 or higher. Some double-paned, Low-E windows have U-factors below .30.
If you want to decrease your heating costs during the winter, select the highest SHGC you can (for a cold climate) so that some solar heat transfers in and offsets your heating needs. The SHGC range for this climate is about .30-.60. If you're more concerned about your summer cooling requirements, choose a SHGC lower than .55.
North/Central Climate - Choose windows with a U-factor of 0.40 or less. The larger your heating bill, the more important a low U-factor becomes.
If you have higher-than-average (or higher than you'd like) air conditioning costs or suffer unduly from the summer heat, look for an SHGC of.40 or less. Moderate AC requirements mean you can go with an SHGC of .55 or less. Remember that windows with lower SHGC values help reduce summer cooling and overheating, but they also impede that free winter solar heat gain.
South/Central Climate - Windows with a U-factor of 0.40 or less are best. The higher your heating bill is, the more important having a low U-factor becomes.
Moderate air conditioning requirements can be met with an SHGC value of 0.55 or less. Don't go too low – keep that winter solar heat gain in mind. It's free heat!
Southern Climate - In warm climates like this, a low U-factor is very important. It's useful during cold days when you'd like a little heat, and it's also helpful during hot days when you want to keep that blistering heat out. In this climate type, however, a low U-factor is slightly less important than the SHGC value. Look for windows with a U-factor lower than 0.75 – preferably lower than 0.60.
The SHGC is the most important window property in warm climates. Shop for windows with a SHGC less than 0.40.
Thursday, February 4, 2010
Simplified Guide to Replacing Windows
Okay, your windows are out-dated and worn out. You’re considering taking out a second mortgage just to heat or cool your home. Or you just want to improve the value and the appearance of your home. You’ve decided that replacing your windows is the way to go. Now what? First, Find a window replacement contractor.
Since a knowledgeable contractor will be able to guide you through all the planning stages of the project, finding a capable contractor should be your first order of business. It will save you both time and money. There are many web sites that list reputable contractors. Word of mouth is also a good way to unearth an outstanding company. Ask friends and any contractors you may know whom they would recommend for window replacement.
Once you’ve narrowed down your search, make sure that the company carries both liability and workers compensation insurance. You don’t want to end up with a lawsuit because the company you’re dealing with does not have proper insurance. Since there are as many different types of installation as there are types of homes, the important thing is to make sure the company you choose to install your windows gives you detailed information on how your windows will be installed.
Here are some questions that will help you evaluate your contractor:
• Does the company specialize in window replacement and installation?
• How long have they been in the window replacement business?
• What is their specific experience with window installations?
• How long would a ten-window installation project take?
• What type of window warranty do they offer on installation?
• Do they have any recent projects you can look at?
Finally, ask them for customer referrals.
Since a knowledgeable contractor will be able to guide you through all the planning stages of the project, finding a capable contractor should be your first order of business. It will save you both time and money. There are many web sites that list reputable contractors. Word of mouth is also a good way to unearth an outstanding company. Ask friends and any contractors you may know whom they would recommend for window replacement.
Once you’ve narrowed down your search, make sure that the company carries both liability and workers compensation insurance. You don’t want to end up with a lawsuit because the company you’re dealing with does not have proper insurance. Since there are as many different types of installation as there are types of homes, the important thing is to make sure the company you choose to install your windows gives you detailed information on how your windows will be installed.
Here are some questions that will help you evaluate your contractor:
• Does the company specialize in window replacement and installation?
• How long have they been in the window replacement business?
• What is their specific experience with window installations?
• How long would a ten-window installation project take?
• What type of window warranty do they offer on installation?
• Do they have any recent projects you can look at?
Finally, ask them for customer referrals.
Some Window Frame Ideas
This is also a very important part of the replacement process when it comes to windows. Choosing a window frame is as important as the glass itself. The three main types of frames used when buying replacement windows are: vinyl, wood and thermally broken aluminum. Here is a rundown of each:
* Vinyl: These frames have seen soaring improvements in quality as of late. They have a somewhat negative reputation because of their past performance. But today, vinyl is made with an increased level of durability and is virtually maintenance free. It is the same color throughout the frame, which means blemishes go unnoticed. Quality vinyl windows are help in place through welding, instead of screws, which means great reinforcement. They are available in white or beige, which means that they won’t overheat. Vinyl window frames should be certified by the National Fenestration Rating Council and the air space between the two panes of glass should always be at least half of an inch.
* Thermal break aluminum frames: These frames contain a specific thermal barrier that keeps the frame from conducting heat or cold. However, it should be noted that this window frame type is not as energy efficient as vinyl or wood. Thermal frames should also be certified by the National Fenestration Rating Council and have an air space of half an inch between panes. There should also be interlocking sashes and double locks on all windows exceeding 30 inches.
* Wood frames: Wood window frames are a great choice and should have some of the same specifications at the former two frames, with certification through the National Fenestration Rating Council and a half inch of air space. It is also important to use wood types that won’t warp once installed. Wood window frames will always be more expensive but they are always rated the highest frames from consumer reports.
* Vinyl: These frames have seen soaring improvements in quality as of late. They have a somewhat negative reputation because of their past performance. But today, vinyl is made with an increased level of durability and is virtually maintenance free. It is the same color throughout the frame, which means blemishes go unnoticed. Quality vinyl windows are help in place through welding, instead of screws, which means great reinforcement. They are available in white or beige, which means that they won’t overheat. Vinyl window frames should be certified by the National Fenestration Rating Council and the air space between the two panes of glass should always be at least half of an inch.
* Thermal break aluminum frames: These frames contain a specific thermal barrier that keeps the frame from conducting heat or cold. However, it should be noted that this window frame type is not as energy efficient as vinyl or wood. Thermal frames should also be certified by the National Fenestration Rating Council and have an air space of half an inch between panes. There should also be interlocking sashes and double locks on all windows exceeding 30 inches.
* Wood frames: Wood window frames are a great choice and should have some of the same specifications at the former two frames, with certification through the National Fenestration Rating Council and a half inch of air space. It is also important to use wood types that won’t warp once installed. Wood window frames will always be more expensive but they are always rated the highest frames from consumer reports.
Tips for Buying New Windows
Buying replacement windows can be a tricky process if you aren’t sure what to look for. After all, there are many different window types and companies to help with installation, that it can an overwhelming undertaking for even the most savvy homeowner. Here are some tips to help get you started:
1. Consider the reputation of the window replacement company: Many homeowners would consider this to be at the bottom of the totem pole, however, this is one of the most important things to consider when buying replacement windows. The home improvement industry has many unlicensed contractors doing shoddy work for homeowners. Always check out a company or individual contracting to do a window replacement in your home. Ask for references and follow up with calling those listed. You could also do a query with the Better Business Bureau to be sure there are no complaints listed against the company you are considering hiring to do your window replacement project. A reputable company should have insurance in place and have qualified employees with some experience in installing replacement windows.
2. Choose the right glass for your replacement window: Homeowners often tend to associate expensive with quality and in some instances this is the case, but in others, this theory couldn’t be farther from the truth. Getting the right glass for your window is as important as getting the proper doors or walls for your home. The glass you get for your window will help to protect your home from the outside elements, in addition to adding a sense of beauty and sophistication to your space. Therefore, homeowners should educate themselves on the types of glass available and work with the window company to choose the right fit.
* Insulated Glass: This is made of two pieces of glass that are melded together in an effort to keep out moisture and other irritants, like dust. Insulated glass comes with spaces that separate the two pieces from one another. One of the most preferred is the “super spacer,” which is non-conductive and works best for energy efficiency. It also provides a double seal for the glass itself. Another effective, but decidedly less common option is argon gas, which does improve the energy efficiency of glass by at least 10%. However, insulated glass with argon gas should be sure to have a sold Mylar backing that will ensure the gas doesn’t seep out. When shopping for insulated glass, it’s important to understand terms like “U-Value” and “Solar Heat Gain Coefficient.” The U-Value of glass is the measure of its efficiency, meaning that the lower the U-Value, the more efficiently the glass performs. The Solar Heat Gain Coefficient is the measure of heat that gets into your home via sunlight. The lower the number of Solar Heat Gain Coefficient is of your glass, the less heat you will get into your home. UV Transmittance is another crucial term to understand as this is the sunlight that harms your décor, fading carpeting and drapes. The lower the percentage of UV rays you have streaming into your home, the more your décor and furnishings will be preserved.
* Obscure glass: This is known as frosted glass and usually is either frosted or patterned to the point where you cannot see through it. Most obscure glass windows have a rough area on the outside page and the inside is made of Low E glass. Some manufacturers often customers fun design options, such as utilizing a rain pattern or fern leaf for an interesting decorative touch.
* Tempered glass: This is glass that is heated up and then cooled, with a small window of turnaround time. This process makes the glass that much stronger and creates a certain amount of surface tension that keeps the glass from shattering into large pieces when broken. This is also known as safety glass, as the pieces are smaller when it’s broken and therefore less dangerous. Whenever safety glass is used, it must be at least 18 inches from the floor.
1. Consider the reputation of the window replacement company: Many homeowners would consider this to be at the bottom of the totem pole, however, this is one of the most important things to consider when buying replacement windows. The home improvement industry has many unlicensed contractors doing shoddy work for homeowners. Always check out a company or individual contracting to do a window replacement in your home. Ask for references and follow up with calling those listed. You could also do a query with the Better Business Bureau to be sure there are no complaints listed against the company you are considering hiring to do your window replacement project. A reputable company should have insurance in place and have qualified employees with some experience in installing replacement windows.
2. Choose the right glass for your replacement window: Homeowners often tend to associate expensive with quality and in some instances this is the case, but in others, this theory couldn’t be farther from the truth. Getting the right glass for your window is as important as getting the proper doors or walls for your home. The glass you get for your window will help to protect your home from the outside elements, in addition to adding a sense of beauty and sophistication to your space. Therefore, homeowners should educate themselves on the types of glass available and work with the window company to choose the right fit.
* Insulated Glass: This is made of two pieces of glass that are melded together in an effort to keep out moisture and other irritants, like dust. Insulated glass comes with spaces that separate the two pieces from one another. One of the most preferred is the “super spacer,” which is non-conductive and works best for energy efficiency. It also provides a double seal for the glass itself. Another effective, but decidedly less common option is argon gas, which does improve the energy efficiency of glass by at least 10%. However, insulated glass with argon gas should be sure to have a sold Mylar backing that will ensure the gas doesn’t seep out. When shopping for insulated glass, it’s important to understand terms like “U-Value” and “Solar Heat Gain Coefficient.” The U-Value of glass is the measure of its efficiency, meaning that the lower the U-Value, the more efficiently the glass performs. The Solar Heat Gain Coefficient is the measure of heat that gets into your home via sunlight. The lower the number of Solar Heat Gain Coefficient is of your glass, the less heat you will get into your home. UV Transmittance is another crucial term to understand as this is the sunlight that harms your décor, fading carpeting and drapes. The lower the percentage of UV rays you have streaming into your home, the more your décor and furnishings will be preserved.
* Obscure glass: This is known as frosted glass and usually is either frosted or patterned to the point where you cannot see through it. Most obscure glass windows have a rough area on the outside page and the inside is made of Low E glass. Some manufacturers often customers fun design options, such as utilizing a rain pattern or fern leaf for an interesting decorative touch.
* Tempered glass: This is glass that is heated up and then cooled, with a small window of turnaround time. This process makes the glass that much stronger and creates a certain amount of surface tension that keeps the glass from shattering into large pieces when broken. This is also known as safety glass, as the pieces are smaller when it’s broken and therefore less dangerous. Whenever safety glass is used, it must be at least 18 inches from the floor.
Window Replacement and The Warranties
There are many decisions to be made when choosing new windows for your home. From various styles and designs to window types, there are a number of factors to consider. When it comes to replacement window warranties, it is best if the homeowner is as informed as possible about the process of redeeming said warranty. This is particularly true if you have to purchase replacement windows via a payment plan. How do you know what kinds of warranties are available to you?
The first step to take is to view and look over the warranty in explicit detail. Ask the retailer or window manufacturer questions about any language in which you don’t understand. If the person dances around the question and doesn’t give you a straight answer, then purchase your windows elsewhere as a reputable businessman should always be able to answer questions regarding a warranty.
Find out if the warranty is full transferable. This is important because then it may expire if you sell your home, which could affect the purchaser. This point is particularly poignant if you purchase insulated glass for your replacement windows as these products should come with a warranty of at least ten years without proration. There are some manufacturers that offer lifetime warranties; however, if they go under, so does the warranty.
You should also ask about service if something goes wrong, inquiring as to whether the company employs qualified service individuals to take care of a problem should something go wrong. Moreover, how long will it take for a service call to be processed and what can you expect in terms of quality? Learn more about window replacement contractors.
Warranties will never cover every single aspect of the life of your replacement window. However, this guarantee will provide some protection for a least the initial period of time you have your new replacement windows installed.
The first step to take is to view and look over the warranty in explicit detail. Ask the retailer or window manufacturer questions about any language in which you don’t understand. If the person dances around the question and doesn’t give you a straight answer, then purchase your windows elsewhere as a reputable businessman should always be able to answer questions regarding a warranty.
Find out if the warranty is full transferable. This is important because then it may expire if you sell your home, which could affect the purchaser. This point is particularly poignant if you purchase insulated glass for your replacement windows as these products should come with a warranty of at least ten years without proration. There are some manufacturers that offer lifetime warranties; however, if they go under, so does the warranty.
You should also ask about service if something goes wrong, inquiring as to whether the company employs qualified service individuals to take care of a problem should something go wrong. Moreover, how long will it take for a service call to be processed and what can you expect in terms of quality? Learn more about window replacement contractors.
Warranties will never cover every single aspect of the life of your replacement window. However, this guarantee will provide some protection for a least the initial period of time you have your new replacement windows installed.
Window Replacement; Frames and Materials
Windows also come in a variety of materials – wood, aluminum, fiberglass, and vinyl replacement windows. For years wood was the most common frame type, but in recent years vinyl and fiberglass have become popular as well. In fact, wood is slowly evolving into the "handsome," high-end choice for window frames. Wood is natural, beautiful, and renewable. The other materials are growing in popularity, however, in part due to the fact that they are easier to install and maintain. In addition to all these options, you must also think about whether you want insert or full-frame window replacements. Here is a brief overview of some of the more common types of replacement windows and materials.
Aluminum Window Frames - Aluminum was really the first non-wood replacement window, and they were very popular in the 1950s and the next few decades. Aluminum windows are very strong, don't have to be painted, and are highly effective at noise reduction. As a metal, however, they are good conductors, which isn't exactly a benefit. In fact, they conduct heat approximately 1,000 times faster than wood or vinyl. Once you settle on a window type, there are still many decisions to make. You'll have to decide whether you want inserts or full frame replacements, and whether you feel confident enough to install them yourself or you should hire an installer. In any case, making the decision to replace your windows and make your home more energy-efficient is a wise and rewarding decision.
Composite and Fiberglass Window Frames - Composite material is a mixture of substances, in this case ground-up vinyl with sawdust or wood chips, with epoxy as binding agent. Some manufacturers use recycled plastic or vinyl to make their composite windows. Composite windows are strong, and resistant to wear-and-tear. Fiberglass windows are highly stable and in fact much stronger than vinyl frames. Fiberglass frames are about three times stronger than aluminum and nine times stronger than vinyl. They are easy maintenance, come in many colors, and, like vinyl, they resist cracking and corrosion.
Wood and Vinyl Window Frames - Once the most common type of window material, wood is now more expensive and has become the elegant and environmental choice for many. Natural and renewable, wood requires staining or painting and some maintenance. Wood is also prone to warping, termites, and rot. To minimize maintenance, some manufacturers clad the exterior side of wood windows in vinyl or aluminum. Wood composite frames, made from wood fibers and plastic resins, are another option. They have wood's look and durability and plastic's easy maintenance. Vinyl replacement windows are a great choice because they are cost-efficient, and easy to install and maintain. Color choice is somewhat restricted, although some manufacturers now offer more color options through surface treatments and coatings.
Aluminum Window Frames - Aluminum was really the first non-wood replacement window, and they were very popular in the 1950s and the next few decades. Aluminum windows are very strong, don't have to be painted, and are highly effective at noise reduction. As a metal, however, they are good conductors, which isn't exactly a benefit. In fact, they conduct heat approximately 1,000 times faster than wood or vinyl. Once you settle on a window type, there are still many decisions to make. You'll have to decide whether you want inserts or full frame replacements, and whether you feel confident enough to install them yourself or you should hire an installer. In any case, making the decision to replace your windows and make your home more energy-efficient is a wise and rewarding decision.
Composite and Fiberglass Window Frames - Composite material is a mixture of substances, in this case ground-up vinyl with sawdust or wood chips, with epoxy as binding agent. Some manufacturers use recycled plastic or vinyl to make their composite windows. Composite windows are strong, and resistant to wear-and-tear. Fiberglass windows are highly stable and in fact much stronger than vinyl frames. Fiberglass frames are about three times stronger than aluminum and nine times stronger than vinyl. They are easy maintenance, come in many colors, and, like vinyl, they resist cracking and corrosion.
Wood and Vinyl Window Frames - Once the most common type of window material, wood is now more expensive and has become the elegant and environmental choice for many. Natural and renewable, wood requires staining or painting and some maintenance. Wood is also prone to warping, termites, and rot. To minimize maintenance, some manufacturers clad the exterior side of wood windows in vinyl or aluminum. Wood composite frames, made from wood fibers and plastic resins, are another option. They have wood's look and durability and plastic's easy maintenance. Vinyl replacement windows are a great choice because they are cost-efficient, and easy to install and maintain. Color choice is somewhat restricted, although some manufacturers now offer more color options through surface treatments and coatings.
Benefits of Replacement Windows
Buying Window Replacements and Working With Contractors - Buying home replacement windows isn't necessarily glamorous, as far as home improvement projects go, but it can be an effective energy and money saving project. Late spring and early fall are the best times of year to replace your windows, because they are usually the mildest. Don't forget that your windows will be off the house entirely during this project, so your home will be exposed to the elements. Using a professional replacement window contractor or installer for your replacement windows should be considered, unless you or someone you know is experienced at installing your particular type of replacement windows.
The Benefits & Savings of Replacement Windows - Replacing and updating your home windows offers many benefits. While some advantages might not be obvious to the naked eye, they are clearly felt in the pocketbook. Replacing your home windows can add significant value to your house just by improving your energy efficiency. There are many energy-saving options for windows today, and choosing the right window could really make a difference in your overall energy bills. Discover the many benefits of home window replacement.
The Cost of Replacing Your Home Windows - There is a huge range in window replacement costs -- for example, a casement window can run you anywhere from $100 at home depot to over a $1000 for a high end Pella window. Customers should expect to pay anywhere from $300-$700 for each window replacement that are inserted into existing frames. This would equate to $3,000 to $10,000 for a home with about ten windows. Before you begin, make sure you have a firm budget. Take the time to fully acquaint yourself with the price ranges of window materials and all the options available at each price grade.
Window Replacement Ratings and Warranties - Because window manufacturers often use different window measures and rating terms to sell their products, it can be difficult to compare replacement window ratings For instance, some may use center-of-glass R-value and shading coefficient, while others use whole-window U-factor and solar heat gain coefficient. Our article on window ratings will definitely set you straight on all these terms and nuances. When it comes to replacement window warranties, it is best if the homeowner is as informed as possible about the process of redeeming your warranty. This is particularly true if you have to purchase replacement windows via a payment plan.
The Benefits & Savings of Replacement Windows - Replacing and updating your home windows offers many benefits. While some advantages might not be obvious to the naked eye, they are clearly felt in the pocketbook. Replacing your home windows can add significant value to your house just by improving your energy efficiency. There are many energy-saving options for windows today, and choosing the right window could really make a difference in your overall energy bills. Discover the many benefits of home window replacement.
The Cost of Replacing Your Home Windows - There is a huge range in window replacement costs -- for example, a casement window can run you anywhere from $100 at home depot to over a $1000 for a high end Pella window. Customers should expect to pay anywhere from $300-$700 for each window replacement that are inserted into existing frames. This would equate to $3,000 to $10,000 for a home with about ten windows. Before you begin, make sure you have a firm budget. Take the time to fully acquaint yourself with the price ranges of window materials and all the options available at each price grade.
Window Replacement Ratings and Warranties - Because window manufacturers often use different window measures and rating terms to sell their products, it can be difficult to compare replacement window ratings For instance, some may use center-of-glass R-value and shading coefficient, while others use whole-window U-factor and solar heat gain coefficient. Our article on window ratings will definitely set you straight on all these terms and nuances. When it comes to replacement window warranties, it is best if the homeowner is as informed as possible about the process of redeeming your warranty. This is particularly true if you have to purchase replacement windows via a payment plan.
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