Calculate The Rate Of Heat Flow Through A Glass Window Energy Efficient Window Film Vs New Windows – Comparison on Performance

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Energy Efficient Window Film Vs New Windows – Comparison on Performance

First you need to find out if you really need new windows.

Here are some questions for you, answer as if the price is not a problem:

  • Does frost or ice form on the inside of your window panes in winter?
  • Never hear your fridge motor, even at night?
  • Do you live on a busy street and are constantly bothered by cars and noise?
  • In cold weather your windows let cold air in, you can see your curtains move and sometimes feel the cold air?
  • Are your windows difficult to operate, elderly and children could be at risk in an emergency? (Are your windows too heavy?)
  • Are your frames rotting or do you have dry rot around the outside of your windows?
  • Are your windows aesthetically unappealing?
  • Can you see light through your window frames?
  • Do you just want to save money on your energy bill?
  • You have aluminum framed windows and they are damaged, faded to rusty brown, yellowish or similar.?
  • Do you see broken seals around the window frame, bars have fallen off, or do you have another major problem?
  • Building an addition or remodeling a room?
  • Do you have a room that is too dark, have a nice space for a better window and/or need natural light?
  • Paint coming off the exterior/interior adjacent area of ​​your window?
  • Are your double-glazed windows collecting water, moisture, mold, steam, fog, etc.?
  • Does anyone in the house use oxygen for medical purposes?
  • Do you hear your windows shake when you slam your door?

Here is the best tip: Find an expert who will offer you a free estimate of your new windows and decide whether or not they are right for you. Decide if and when to buy new windows… Please don’t let them overestimate this for you. Better quality windows, with a lifetime warranty and the most beautiful vinyl frames, retrofitting or replacing windows shouldn’t break the bank… We’ve analyzed a few of the best brands here… Ask me. (Can’t post for obvious reasons) But don’t fall for the cheapos, no one price fits all…you might regret it sooner or later.

Now comes the comparison between energy efficient windows and windows. Energy-efficient film, to its performance.

NOTE:- We are assuming that none of the above issues in the first section is a problem in your case.

Energy-efficient window film

Consider energy-efficient window films in situations where you have older or low-efficiency but still airtight windows and need to increase their energy efficiency without spending a lot of money on new windows. These films reduce radiant heat passing through your windows and also reduce UV radiation entering the home and also the amount of visible spectrum light. Help avoid color fading and the many benefits mentioned on this page.

Energy-efficient window film is very easy and quick to install: you don’t need a highly trained contractor, so you also save money on installation. (Find the instructions link at the bottom of this article)

Of course, energy-efficient window film does not block all infrared radiation, but it receives most of it: it rejects 99% of UV radiation, reducing fading and the risk of skin cancer.. And it provides about the same level of energy efficiency as buying new windows with low-E coatings, under assuming you are not in the above situations.

Energy-efficient window film can block up to 38% of heat loss that normally escapes through your windows in winter, and up to 70% of solar energy that normally enters through windows in summer.

In addition to its energy saving benefits, solar window film can increase thermal comfort and reduce glare.

If you’re looking for technical information, here are some amazing performance figures offered by some of the best of these films:

  • Total solar energy rejected more than 70%
  • UV light rejected almost 100%
  • More than 80% glare reduction
  • Visible light reflected from outside more than 40%
  • Reduction of solar heat by almost 70%

Energy Efficient Double Glazed Windows (Vinyl Framed Replacement Windows)

Obviously, there is no comparison to the performance of these extremely high-tech products. And it’s not because of the double panes of glass compared to single pane windows, And not only because of the multilayer films that come in both panes of these windows, but on top of that they now come with argon gas filling between the panes of glass, (Argon is a harmless gas, very dense and poor conductor of heat, always present in the air we breathe all the time, so it’s not terrible.)

The sophisticated and technologically advanced material used in the frame construction of these windows, together with the very unique design of the vinyl frame profile, the quality of new technology applied to the seals and gaskets, spacers etc. The efficiency achieved is unmatched. These new windows can save up to 40% on your utility bill under certain conditions.

You will need responsible and reputable professional advice to find out more about the possible savings. It all depends on where you live and how you live. He will know with a few questions whether the new windows will achieve this goal. Find additional information here at the bottom of the article.

Without going into the detailed technical data (which can be found at http://www.energystar.gov ) it will be mentioned here that an Energy Star labeled window MUST be efficient enough, to be hermetically sealed, and its glass panes, most of them must be made to reflect the sun, heat and UV rays. So you won’t need as much energy to be comfortable at home: > WARNING: So many people report that they almost never use their HVAC, but KEEP fans and ceiling fans on 24/7 Be careful, these are the smallest and least efficient cooling systems your home…not your HVAC, and this energy isn’t free!)

Energy-efficient windows are evaluated mainly by these factors:

U-rate or U-factor. Indicates the heat transfer coefficient, a measure of the rate of non-solar heat loss or gain through a material or assembly. U-values ​​measure how well a material transmits heat. U-value ratings are generally between 0.20 and 1.20. The lower the U-value, the greater the product’s resistance to heat flow and the better its insulating value. The inverse (one divided by) of the U-value is the R-value

The R-value is simply how resistant the material (the window in this case) is to prevent the passage of heat.

Solar heat gain coefficient (SHGC)

In simple terms, these measure how much heat your room is getting from solar radiation coming through the window, whether it’s directly transmitted and absorbed and then released inside. It is rated between 0 and 1. The lower the solar heat gain coefficient of the window, the less solar heat it transmits. Inside your building.

Visible transmittance (VT)

This measures the visible sunlight in your room. The measure varies between 0 and 1, most values ​​among double and triple windows are between 0.30 and 0.70. It is not known to have a whole 1 in this factor, it would be like having 100% and is unlikely to happen. However, the more light transmitted the better, this is desirable to maximize daylight; so you don’t have to use electric light during the day.

Air leakage (AL)

Heat loss and gain are caused by the exchange of air inside/outside your home. Infiltration through cracks in the window. This rating (AL) is measured by the cubic feet of air passing through a square foot of window surface in a given time. Air tightness is never 100% on movable windows. New windows should have rates of 0.30 or less (cfm/sq ft=cubic feet per minute, per square foot of window). Just know that high-quality windows are usually far above these standards, in every sense, your investment will be well worth it.

Improvements, comfort, and curb appeal aside, your new windows may be the best upgrade you can make to your home’s exterior. Consider that aluminum framed windows are just like single pane windows; are something you will need to replace today or in a feature.

Findings:

In most cases, energy-efficient window films will be a temporary solution. However, if you are on a budget and have nice and sound windows; you can add a quality energy-efficient foil and protect your home while saving energy. No doubt. Even on older windows you will improve performance.

Energy efficient vinyl windows are now available in colors and textures even like wood; satisfy even the most demanding people. And of course, there are real wood windows, beautiful and efficient; you pay more and they need maintenance, but it might be worth it.

If you are considering new energy efficient windows; tell us your concerns and we’ll be more than happy to offer you professional answers.

Find out how to install window film here: http://www.privacywindowfilm.biz/category/window-film-installation

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