FEATURE REPORT

Tips on Energy Efficient Windows

Windows bring light, warmth, and beauty into buildings and give a feeling of openness and space to living areas. They can also be major sources of heat loss in the winter and heat gain in the summer. However, when properly selected and installed, windows can help minimize a home’s heating, cooling, and lighting costs. This information describes one option– energy-efficient windows–available for reducing a home’s heating and cooling energy requirements. 

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Tips on Energy Efficient Windows

Don’t Pay Another Cent in Rent To Your Landlord

Get An Extra Hour Out Of Every Day

Tips On Energy Efficient Windows

Windows bring light, warmth, and beauty into buildings and give a feeling of openness and space to living areas. They can also be major sources of heat loss in the winter and heat gain in the summer. However, when properly selected and installed, windows can help minimize a home’s heating, cooling, and lighting costs. This information describes one option– energy-efficient windows–available for reducing a home’s heating and cooling energy requirements.

Controlling Air Leaks

When air leaks around windows, energy is wasted. Energy is also transferred through the centers, edges, and frames of windows.

Eliminating or reducing these paths of heat flow can greatly improve the energy efficiency of windows and, ultimately, of homes. Several options are available to reduce air leaks around windows; the least expensive options are caulking and weather stripping, followed by replacing window frames.

Caulking and Weather Stripping

Caulks are airtight compounds (usually latex or silicone) that fill cracks and holes. Before applying new caulk, old caulk or paint residue remaining around a window should be removed using a putty knife, stiff brush, or special solvent. After the old caulk is removed, the new caulk can then be applied to all joints in the window frame and the joint between the frame and the wall. The best time to apply caulk is during dry weather when the outdoor temperature is above 45 degrees Fahrenheit (7.2 degrees Celsius). Low humidity is important during application to prevent cracks from swelling with moisture. Warm temperatures are also necessary so the caulk will set properly and adhere to the surface.

Weatherstripping is a narrow piece of metal, vinyl, rubber, felt, or foam that seals the contact area between the fixed and movable sections of a window joint. It should be applied between the sash and the frame, but should not interfere with the operation of the window.

Replacing Window Frames

The type and quality of the window frame usually affect a window’s air infiltration and heat loss characteristics. Many window frames are available–all with varying degrees of energy efficiency. Some of the more common window frames are fixed-pane, casement, double and single-hung, horizontal sliding, hopper, and awning.

When properly installed, fixed-pane windows are airtight and inexpensive and can be custom designed for a wide variety of applications. However, because they cannot be opened, fixed-pane windows are unsuitable in places where ventilation is required.

Casement, awning, and hopper windows with compression seals are moderately airtight and provide good ventilation when opened. Casement windows open sideways with hand cranks. Awning windows are similar to casement windows except that their hinges are located at the tops of the windows instead of at the sides. Hopper windows are inverted versions of awning windows with their hinges located at the bottom. Windows with compression seals allow about half as much air leakage as double-hung and horizontal sliding windows with sliding seals.

Double-hung windows have top and bottom sashes (the sliding sections of the window) and can be opened by pulling up the lower sashes or pulling down the upper sash. Although they are among the most popular type of window, double-hung windows can be inefficient because they are often leaky. Single-hung windows are somewhat better because only one sash moves. Horizontal sliding windows are like double-hung windows except that the sashes are located on the left and right edges rather than on the tops and bottoms. Horizontal sliding windows open on the side and are especially suitable for spaces that require a long, narrow view. These windows, however, usually provide minimal ventilation and, like double-hung windows, can be quite leaky.

Reducing Heat Loss and Condensation

Manufacturers usually represent the energy efficiency of windows in terms of their u-values (conductance of heat) or their R-values (resistance to heat flow). If a window’s r- value is high, it will lose less heat than one with a lower r-value. Conversely, if a window’s u-value is low, it will lose less heat than one with a higher u-value. In other words, u-values are the reciprocals of R-values (u-values = 1/r-value). Most window manufacturers use R-values in rating their windows.

The following five factors affect the R-Value of a window:

• The type of glazing material (e.g., glass, plastic, treated glass)
• The number of layers of glass
• The size of the air space between the layers of glass
• The thermal resistance of conductance of the frame and spacer materials
• The “tightness” of the installation (i.e., air leaks– see previous discussion).

Types of Glazing Materials

Traditionally, clear glass has been the primary material available for window panes in homes. However, in recent years, the market for glazing–or cutting and fitting window panes into frames–has changed significantly. Now several types of special glazing are available that can help control heat loss and condensation.

Low emissivity (Low-E) glass has a special surface coating to reduce heat transfer back through the window. These coatings reflect from 40% to 70% of the heat that is normally transmitted through clear glass while allowing the full amount of light to pass through.

Heat absorbing glass contains special tints that allow it to absorb as much as 45% of the incoming solar energy, reducing heat gain. Some of the absorbed heat, however, passes through the window by conduction and re-radiation.

Reflective glass has been coated with a reflective film and is useful in controlling solar heat gain during the summer. It also reduces the passage of light all year long, and, like heat-absorbing glass, it reduces solar transmittance. Plastic glazing materials–acrylic, polycarbonate, polyester, polyvinyl fluoride, and polyethylene–are also widely available. Plastics can be stronger, lighter, cheaper, and easier to cut than glass. Some plastics also have higher solar transmittance than glass. However, plastics tend to be less durable and more susceptible to the effects of weather than glass.

Storm windows can increase the efficiency of single-pane windows, the least energy-efficient type of glazing. The simplest type of storm window is a plastic film taped to the inside of the window frame. These films are usually available in prepackaged kits. Although plastic films are easily installed and removed, they are easily damaged and may reduce visibility. Rigid or semi-rigid plastic sheets such as plexiglass, acrylic, polycarbonate, or fiber-reinforced polyester can be fastened directly to the window frame or mounted in channels around the frame–usually on the outside of the building. These more durable materials are also available in kits.

Layers Of Glass and Air Spaces

Standard single-pane glass has very little insulating value (approximately r-1). It provides only a thin barrier to the outside and can account for considerable heat loss and gain. Traditionally, the approach to improve a window’s energy efficiency has been to increase the number of glass panes in the unit, because multiple layers of glass increase the window’s ability to resist heat flow.

Double-pane windows are usually more efficient than single-pane or storm windows. Double or triple-pane windows have insulating air or gas-filled spaces between each pane. Each layer of glass and the air spaces resist heat flow. The width of the air spaces between the panes is important because air spaces that are too wide (more than 5/8 inch or 1.6 centimeters) have lower R-values (i.e., they allow too much heat transfer). Advanced, multipane windows are now manufactured with inert gases (argon or krypton) in the spaces between the panes because these gases transfer less heat than does air. Multipane windows are considerably more expensive than single-pane windows and limit framing options because of their increased weight.

Frame and Spacer Materials

Window frames are available in a variety of materials including aluminum, wood, vinyl, and fiberglass. Frames may be primarily composed of one material, or they may be a combination of different materials such as wood and vinyl. Each frame material has its advantages and disadvantages. Though ideal for customized window design, aluminum frames cause conductive heat loss (i.e., they have low R-values) and condensation. However, thermal breaks made of insulating plastic strips placed between the inside and outside of the frame and sash greatly improve the thermal resistance of aluminum frames.

Wood frames have higher R-values, are unaffected by temperature extremes, and are less prone to condensation, but they require considerable maintenance in the form of periodic painting. If wood frames are not properly protected from moisture, they can warp, crack, and stick.

Vinyl window frames, which are made primarily from polyvinyl chloride (PVC), offer many advantages. They are available in a wide range of styles and shapes, have moderate to high R-values, are easily customized, are competitively priced, require low maintenance, and mold easily into almost any shape. But vinyl frames are not strong or rigid, which limits the weight of the glass that can be used. In addition, vinyl frames can soften, warp, twist, and bow.

Fiberglass frames are relatively new and are not yet widely available. They have the highest R-values of all frames; thus, they are excellent for insulating and will not warp, shrink, swell, rot, or corrode. Fiberglass frames can be made in a variety of colors and can hold large expanses of glass. Some fiberglass frames are hollow; others are filled with fiberglass insulation.

Spacers are used to separate multiple panes of glass within the windows. Although metal (usually aluminum) spacers are commonly installed to separate glass in multipane windows, they conduct heat. During cold weather, the thermal resistance around the edge of a window is lower than that in the center; thus, heat can escape, and condensation can occur along the edges.

Many types of windows and window films are available that serve different purposes. To alleviate these problems, one manufacturer has developed a multipane window using a 1/8-inch-wide (0.32 centimeters- wide) PVC foam separator place along the edges of the frame. Like other multipane windows, these use metal spacers for support, but because the foam separator is secured on top of the spacer between the panes, heat loss and condensation are reduced. Several window manufacturers now sandwich foam separators, nylon spacers, and insulation materials such as polystyrene and rock wool between the glass inside their windows.

Additional Options For Reducing Heat Loss

Movable insulation, such as insulating shades, shutters, and drapes, can be applied on the inside of windows to reduce heat loss in the winter and heat gain in the summer. Shading devices, such as awnings, exterior shutters, or screens, can be used to reduce unwanted heat gain in the summer. In most cases, these window treatments are more cost-effective than energy-efficient window replacements and should be considered first.

Reducing heat loss or gain in homes often includes either improving existing windows or replacing them. Low-cost options available for improvement are caulking, weather stripping, retrofit window films, and window treatments. Replacing windows will involve the purchase of new materials, which should adhere to certain energy efficiency standards. Different combinations of frame style, frame material, and glazing can yield very different results when weighing energy efficiency and cost. For example, a fixed-pane window is the most airtight and the least expensive; a window with a wood frame is likely to have less conductive heat loss than one with an aluminum frame; double-pane, Low-E window units are just as efficient as triple-pane untreated window’s, but cost and weigh less.

No one window is suitable for every application. Many types of windows and window films are available that serve different purposes. Moreover, you may discover that you need two types of windows for your home because of the directions that your windows face and your local climate. To make wise purchases, first, examine your heating and cooling needs and prioritize desired features such as daylighting, solar heating, shading, ventilation, and aesthetic value.

Don’t Pay Another Cent in Rent To Your Landlord

“If you’re like most renters, you feel trapped within the walls of a house or apartment that doesn’t feel like yours.”

It’s a dream we all have – to own our own home and stop paying rent. But if you’re like most renters, you feel trapped within the walls of a house or apartment that doesn’t feel like yours. How could it be when you’re not even permitted to bang in a nail or two without a hassle. You feel like you’re stuck in the renter’s rut with no way of rising up out of it and owning your own home.

Don’t Feel Trapped Anymore

It doesn’t matter how long you’ve been renting, or how insurmountable your financial situation may seem. The truth is, there are some little-known facts that can help you get over the hump, and transfer your status from renter to homeowner. With this information, you will begin to see how you really can:

• save for a down payment
• stop lining your landlord’s pockets, and
• stop wasting thousands of dollars on rent.

6 Little Known Facts That Can Help You Buy Your First Home

The problem that most renters face isn’t your ability to meet a monthly payment. Goodness knows that you must meet this monthly obligation every 30 days already. The problem is accumulating enough capital to make a down payment on something more permanent.

But saving for this lump sum doesn’t have to be as difficult as you might think. Consider the following 6 important points:

1. You can buy a home with much less down than you think

There are some local or federal government programs (such as 1st-time buyer programs) to help people get into the housing market. You can qualify as a first-time buyer even if your spouse has owned a home before as long as your name was not registered. Ensure your real estate agent is informed and knowledgeable in this important area and can offer programs to help you with your options.

2. You may be able to get your lender to help you with your down payment and closing costs

Even if you do not have enough cash for a downpayment, if you are debt-free, and own an asset free and clear (such as a car for example), your lending institution may be able to lend you the downpayment for your home by securing it against this asset.

3. You may be able to find a seller to help you buy and finance your home

Some sellers may be willing to hold a second mortgage for you as a ‘seller take-back. In this case, the seller becomes your lending institution. Instead of paying this seller a lump-sum full amount for his or her home, you would pay monthly mortgage installments.

4. You may be able to create a cash down payment without actually going into debt

By borrowing money for certain investments to a specified level, you may be able to generate a significant tax refund for yourself that you can use as a downpayment. While the money borrowed for these investments is technically a loan, the monthly amount paid can be small, and the money invested in both home and investment will be yours in the end.

5. You can buy a home even if you have problems with your credit rating

If you can come up with more than the minimum down-payment or can secure the loan with other equity, many lending institutions will consider you for a mortgage. Alternatively, a seller take-back mortgage could also help you in this situation.

6. You can, and should, get pre-approved for a home loan before you go looking for a home

Pre-approval is easy and can give you complete peace of mind when shopping for your home. Mortgage experts can obtain written pre-approval for you at no cost and no obligation, and it can all be done quite easily over the phone. More than just a verbal approval from your lending institution, a written preapproval is as good as money in the bank. It entails a completed credit application and a certificate that guarantees you a mortgage to the specified level when you find the home you’re looking for. Consider dealing only with a professional who specializes in mortgages. Enlisting their services can make the difference between obtaining a mortgage, and being stuck in the renter’s rut forever. Typically there is no cost or obligation to enquire.

There are many important issues you should be aware of that affect you as a renter. Why on earth would you continue to lose thousands by throwing it away on rent when with your agent you could take a few minutes to discuss your specific needs so that you can stop renting and start owning.

This conversation costs you nothing. And, of course, you shouldn’t have to feel obligated to buy a home at the time you review this. But by taking the time to explore your options, and learn about the ways you can afford to buy a home, think how prepared and relaxed you’ll be when you are ready to make this important step.

Get An Extra Hour Out Of Every Day

How can you get an extra hour from each day? This is a basic challenge for all of us. We’ve come up with many practical ways to secure one more precious hour from each day. (Remember that each of these tips is probably adaptable to your particular situation.) Here they are…

1. Makeup and follow a detailed, daily schedule.

2. Get up earlier.

3. Do less passive reading, TV watching, and the like.

4. Avoid allowing others to waste your time.

5. If you commute to work, use the time to study or plan.

6. Organize your work; do it systematically.

7. Make creative use of lunchtime.

8. Delegate authority if possible.

9. Spend less time on unimportant phone calls.

10. Think first; then do the job.

11. Do instead of a dream.

12. Work hardest when you’re mentally most alert.

13. Eliminate activities that make little contribution to the best results for your life.

14. Always do the toughest jobs first.

15. Before each major act, ask: Is this REALLY necessary?

16. Choose interesting and constructive literature for spare-moment reading.

17. Learn how to sleep. Sleep soundly, then work refreshed.

18. Skip desserts.

19. Stop smoking.

20. Write notes or letters while waiting for others.

21. Always carry an envelope with paper in it, stamps and a few postcards.

22. Combine tasks that are done in the same area.

23. Be prompt for all appointments.

24. Lay out your clothes the night before.

25. Relax. Ready yourself for the important jobs in life.

26. Concentrate on the specific task you’re doing.

27. Make constructive use of those five or ten-minute waiting periods. Carry with your magazine article clippings on helpful subjects.

28. Always carry a pencil and paper to capture important-to-you ideas.

29. Learn to do other “unnecessary things” while watching TV or listening to the radio.

30. Call on specialists to accomplish work you cannot do efficiently.

31. Learn to read more rapidly.

32. Nap an hour after dinner. Then take a shower. Begin the evening hours relaxed and refreshed.

33. Avoid making a “production” out of small tasks.

34. Avoid interruptions.

35. Tackle only one job at a time.

36. Search out job shortcuts.

37. Know your limitations.

38. Work to your top capacity.

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