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Dr. Energy Saver energy conservation experts replace each window with extra care to ensure the highest quality of energy efficiency and to give the best energy savings and return for your investment. In this job, Dr. Energy Saver replaces a home's old wooden windows with high efficiency windows. To prevent air leakages around the new windows, they inject spray foam into the shim space.
Today, we are at this house where we are replacing eleven windows. Let's take a look. These are all wood windows. These are the most common kind. It is a double hung window and what we are going to do is remove the stop molding on the inside and remove the sashes, and then remove the jamb expander and then we are going to put a our new replacement window.
Here is another little trick and this is I can guarantee you that no replacement window companies do this, but that is to try to seal the shim space between the existing window and the framed opening. What we can do is drill a whole here and we have our foam gun with a needle.
These new windows are more energy efficient than the old windows that is the reasons to replace them in the first place. First of all we have double glazing and double glazing two pieces of glass provides a space between the glass so that we don't get as much heat transmittance through the glass itself.
You can take a look with our thermal imaging camera we see that the glass on the window that we did not do is 50 degrees and look at the difference that will last on the window that we did do is 67 degrees. Wow what a difference.
Read Full Transcript:
I'm Larry Janesky from Dr. Energy Saver. One of the things we do at Dr. Energy Saver is replace windows with high efficiency windows to save energy and make your home more comfortable.
Today, we are at this house where we are replacing eleven windows. Let's take a look. These are all wood windows. There are many kinds of windows but this is the most common kind. It is a double hung window and what we are going to do is remove the stop molding on the inside and remove the sashes, and then remove the jamb expander or the track if you want to call it that and then we are going to put a our new replacement window in.
Sometimes, you have different kinds of windows, or different width of walls, sometimes you may have to remove the entire the jamb and the casing which is the interior trim and the sill and the apron and re-trim the whole window afterwards. The good news is you get some new trim but you got a stain and polyurethane or painted after the window has been replaced. The bad news is that of course that is going to cost a little bit more but with your new energy efficient windows with new trim you would be very happy.
Let me show you another thing that could be done when we replace windows to make them as energy efficient as possible. Now when many people think they have leaky windows and that is because they feel a draft. Well the draft is for a number of reasons. It could be certainly is because of the glass is cold and when air from inside the room hits the cold glass it descends and runs up the interior wall and then down hits the glass, gets cold again and descends and it creates a convective loop.
Here is another little trick and this is I can guarantee you that no replacement window companies do this, but that is to try to seal the shim space between the existing window and the framed opening. What we can do is drill a whole here and we have our foam gun with a needle. When I pull the trigger this foam is coming out of the gun like that and we stuck it in there. I am pulling the trigger right now. All that foam is going in to that shim space so what is that going to do for us? Well it is going to prevent cold air from coming in around this casing here or here and stop airflow and that is very important that you won't get that with any standard replacement window service this is an extra step that we go through to insure that these windows are as energy efficient as possible. We are going to put a bead of foam on the bottom so that when we set the window down it goes right into this bed of foam. Another feature of modern high quality windows is that they tilt in for easy cleaning so I would be able to clean my windows even if it was on the second or third floor very easily. Okay, well let's take a look at these new windows.
These new windows are more energy efficient than the old windows that is the reasons to replace them in the first place. First of all we have double glazing and double glazing two pieces of glass provides a space between the glass so that we don't get as much heat transmittance through the glass itself. In that space, one of the things the opportunities that we have is to fill that space with Argon gas instead of air. Now Argon gas is an inert gas but it doesn't allow the heat to transmit through the too panes of glasses easily as just air would. We also have low E glass and this is very important. Low E glass is low emissivity and that means that we can let visible light through but we are going to block a large portion of the part of the light spectrum that caries heat that radiates heat so low E glass prevents heat flow from the outside in and the summer and from the inside out in the winter.
Now we can see that the glass is a little bit tinted and sort of like sunglasses and that is one way that you can tell that it is low e glass where clear glass will let all the heat right through. Another element of this window is we can see that it has a vinyl frame and vinyl never needs paint it won't rot it won't twist and warp with more moisture, less moisture and so forth so openings don't open up between the wood where air can get through in various seasons. So Vinyl is really ideal material to use and it lowers your maintenance cost no painting that looks good you know basically forever. I have this label here and it has several things on it the most important one being the u-factor and the u-factor of this window is .31 and that is very good, the lower the u-factor the better. Now the U-factor is the inverse of the R-factor is the resistance to heat flow and it is how insulation and various wall and building assemblies are rated, a window or a door is always the weak spot in the thermal boundary of the house or weak spot in the thermal efficiency of any wall. It is always going to be colder than the wall. This window is going to be twice as energy efficient as a window with a U-value of .6 so the lower the u-value the better.
You can take a look with our thermal imaging camera we see that the glass on the window that we did not do is 50 degrees and look at the difference that will last on the window that we did do is 67 degrees . Wow what a difference. Well that is the last of them. That is another quality window job by Dr. Energy Saver.
If you need replacement windows in your home call Dr. Energy Saver, we can help you with that in any home energy conservation need in your house insulation, air, ceiling, duct repair, high efficiency heating and air conditioning and water heating call Dr. Energy Saver. We will be glad to help. Contact Dr. Energy Saver for a home energy evaluation and written estimate.
