Window Replacement in Kenmore

Reblogger Jeanne Dufort
Real Estate Agent with Coldwell Banker Lake Country 284620

Living in a older cabin, I'm well aware of the potential to decrease my energy bills by investing in replacement windows.  The article below provides a primer for people interested in what all the new features available in windows actually mean in terms of function.

If your home is more than 20 years old, and has original windows - you should investigate the cost/benefit of updating your windows.

The benefits include:

experience - in time of extreme heat and cold, your home is likely to be more confortable with modern quality windows

economics - be sure to compare the return on investment of replacing your windows - its not free, of course, but expect to save in future energy bills

esthetics - when changing out your windows, you have an opportunity to impact the curb appeal of your home.

Don't forget to evaluate contractors in your area - find a locally owned business, if possible, and ask for references.  Be sure to look for someone interested in helping you meet your goals.  Be on the alert for fast-talkers, who promise huge benefits for a much lower price than the competitors.  If it sounds too good to be true, it likely is not true.

Major changes to your home should be taken cautiously, and you should always try to balance the impact on your quality of life versus potential resale value.

Original content by John

Replacing your windows can be one of your home's most attractive features and can also provide you with convenient ventialtion, ease of use, superior natural light, and cleaning convenience not found in older windows. Window Replacement Kenmore Green City Window and Door

If you have an older home or have inefficient windows you could be throwing 30% of your heating and cooling dollars out the window, literally. On average, the owner could expect to recoup approximately 69% upon the sale of the home when replacing their older windows with new energy efficient windows. Window Replacement Kenmore Green City Window and Door 

We are a General Contractor with over 45 years of experience in the building trades specializing in replacng residential windows & doors. We offer the best quality, most economical and energy efficient custom replacement windows on the market. With full service to the Western Washington area, our products are professionally installed, on time and on budget from initial inspection to final completion. Green City Window & Door is committed to providing you and other countless satisfied homeowners with the quality and value that you deserve. Window Replacement Kenmore Green City Window and Door

We are A RATED accredited members of the Better Business Bureau and Master Builders Association. Rest assured your job is managed and installed by our own project managers and journeyman craftsmen. We are confident that we offer the best value for your window replacement dollar. Window Replacement Kenmore Green City Window and Door

As well as most other companies in the industry, we are selling great quality products with household names you can trust. One of the biggest differences between Green City Window & Door and our competitors is in how we market ourselves to our customers. Rather than spending tens of thousands of dollars to be seen and heard, our sales come mostly from the internet and word of mouth from our customers and contractors. Our overhead costs are therefore much lower which leads are being lower. We encourage you to shop all you want because it will help you to see the secured value in the products we offer and unbetable prices. Window Replacement Kenmore Green City Window and Door

Today there are many manufacturers of windows, which can cause difficulty to choose a quality product. Of course, most companies or window salesperson claim to have the best product. Window Replacement Kenmore Green City Window and Door

There are serveral design elements and options to look for when choosing your windows and professional installer. Some of the elements are listed below: Window Replacement Kenmore Green City Window and Door

  • IG Units: is the number of panes of inslated glass.
  • Low-E: "low emittance" coatings, which minimize thermal radiation (damaging rays).
  • Low Conductive Gass Filled: Argon or Krypton
  • U-Factor: heat loss rating
  • SHGC Factor: amount of solar radiation (heat) admitted through a window. 
  • VT: Visible Light Transmission

The following informatio will take some of the "mystery" out of window terms. Window Replacement Kenmore Green City Window and Door

IG Units: What is "IG" unit?

Today, quality windows are built around what's called an insulated glass (IG) unit. An insulated glass unit starts out as two or three individual panes of lgass that are chemically bonded by a sealant to spacer bars. When comparing vinyl replacement windows, always ask about the IG unit. Because not all windows or glass are alike, you should require the highest quality and performance standards. Window Replacement Kenmore Green City Window and Door

Low-E: Is it for me?

Low emittance (Low-E) coatings are thin, metal or metallic oxide layers deposited on a window surface primarily to reduce the U-factor by suppressing the heat flow through the glazed window unit. Coating the inner glass surface with a low-emittance material between the glass layers, with a low-emittance material between the glass layers, blocks a significant amount of this radiant heat transfer, which lowers the heat flow through the window. Low-E coatings are transparent to visible light. Different types of Low-E coatings have been designed to allow for high solar gain, moderate solar gain, or low solar gain. We usually recommend Low-E for any regions in your home that receive a lot of direct sunlight. One thing to remember is the windows have a slightly tinted appearance. Window Replacement Kenmore Green City Window and Door

Low Conductive Gas Filled Units:

An improvement that has been made to the insulating performance by the use of argon or krypton gas between the panes of glass. Normally the space is filled with air or dry nitrogen prior to sealing the window panes together. In a sealed glass insulated window unit, air currents between the two panes of glazing carry heat to the top of the unit and settle into cold pools at the bottom. Filling the space with a less conductive gas minimizes this and the overall transfer of heat between the inside and outside is reduced. Window Replacement Kenmore Green City Window and Door

Argon is inexpensive, nontoxic, non-reactive, clear and odorless. The optimal spacing for an argon- filled unit is the same as for ait, about 1/2-1 inch. Window Replacement Kenmore Green City Window and Door

Krypton has better thermal performance, but is more expensive to produce. Krypton is particularly useful when the space between glazing's must be thinner than normally desired, for example, 1/4 inch. A mixture of krypton and argon gases is also used as a compromise between thermal performance and cost. Window Replacement Kenmore Green City Window and Door

The use of conductive gas filled units has significant insulating benefits but comes at higher initial cost.

U-Factor- What exactly is it?

The rate of heat loss is indicated in terms of the U-factor (U-value) of a window assembly. The lower the U-value the greater a window's resistance to heat flow and the better its insulating value. Winter nighttime U-values are calculated using an outdoor air temperature of 0 degrees F and outdoor air velocity of 15mph, indoor air temperature of 70 degrees F, and air veolcity of 0mph. This is similar to the R-Rave that you think of when choosing insulation except a low U-factor is better, unlike R-value which the larger the number the better. Window Replacement Kenmore Green City Window and Door

It is calculated as 1 divided by the R-value=U-factor. If you used this calculation R-13 insulation would have a U-factor of 0.077.

To conver U-factor to R-value you take 1 divide by the U-factor. If you used this calculation for the average aluminum framed window ith a U-factor of 1.125, your R-value would be 0.89. Window Replacement Kenmore Green City Window and Door

Good replacement windows depending upon the glazing options and low conductive gas fills range between 0.5 and .10 for the U-factor. Window Replacement Kenmore Green City Window and Door

SHGC Factor- What is it?

Solar heat gian indicates the total amount of solar energy that passes through glass relative to a 1/8" (3mm) thick clear glass under the same design conditions. It includes both solar energy transmitted directly plus any absorbed solar energy subsequently re-radiated into the room. Lower values indicate better performace in reducing summer heat gain and, in turn, air conditioning loads. Your average single paned wood framed window has a SHGC of 0.98 whereas a quality replacement window will have ratings from 0.91-0.39 depending upon glazing options. Window Replacement Kenmore Green City Window and Door

VT- Visible Light Transmission:

The visible transmittance (VT) is an optical property that indicates the amount of visible light transmitted. The VT is a whole window rating and includes the impact of the frame, which does not transmit any visible light. While VT theoretically varies between 0 and 1, most values are between 0.3 and 0.8. The hight the VT, the more light is transmitted. A high VT is desirable to maximize daylight. Window Replacement Kenmore Green City Window and Door


I hope this article helped demystify the terms used when you are contemplting your new window replacement purchace. Purchasing a quality window is only a part of the equation. The installation is the largest factor of how your windows with perform. Take great care installing and insulating around your existing openings and windows to assure you receive the maximum performance possible from your windows.  Window Replacement Kenmore Green City Window and Door


For Window replacement in Kenmore from Green City Window & Door, call us at 425-200-9191 or e-mail us at



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Sharon Tara
Sharon Tara Transformations - Portsmouth, NH
New Hampshire Home Stager

Great information on replacement windows....I think most people underestimate the value!

Nov 26, 2013 09:12 PM #1
Jeanne Dufort
Coldwell Banker Lake Country - Madison, GA
Madison and Lake Oconee GA

Thanks, Sharon.  Changing out windows is one of the important upgrades you can do.

Nov 26, 2013 10:52 PM #2
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Jeanne Dufort

Madison and Lake Oconee GA
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