When sleeping in an AC room or having a centralized AC in the house, you need to make sure that the frames are sealed and secured. If possible you should meet window air infiltration ratings so that no cold air is leaking out because this is one way to save energy. This is an important consideration when building or reconstructing a house because no homeowner would like to waste electricity and money in paying their monthly bills.
This is quite a complex topic for some homeowners because they usually leave everything to the experts when it comes to such issues. However, it would be great if you can also understand why infiltration ratings are important and how it affects your electric consumption. I know that with window installation, your part is to choose the design or style and how it will be installed is not our business since the contractor has people to deal with this.
The air coming in and out of the house circulates, depending on the structure or on how the ventilation was designed. We cannot even tell if these were properly installed or if standards were met. So, it is just right for homeowners to understand this, especially when high electric bills or other strange situations are observed.
Air Infiltration (AI)
This may occur when air is passing through due to the structural design, lack of maintenance, and poor installation. You should know this is a common failure so you will notice gaps between glasses or wall and structural frame. No matter how small this space is, it is still a gap that may lead to infiltration – visit https://energyeducation.ca/encyclopedia/Air_infiltration_and_exfiltration for more information.
That’s why; you will also notice that this is where dust is coming from. So, even when you are aiming at a dust-free environment, there will still be a chance to produce this. I guess you may need an expert’s help to check the leakage rating or AL because this may also affect your energy consumption.
To eliminate infiltrations may not be possible but to reduce the leakage or AL can be managed. In this way, it will be a more comfortable home to stay in and energy-efficient as well. Therefore, an expert must be able to identify where the gap or crack is because this is where you will start dealing with the problem.
Any suspicious occurrence of gaps, such as caulks, weather strips, or light passes must be reported for inspection and monitoring as well. This may look like a small issue to you but it could be a concern in the future. So, to eliminate the problem, you may install a more efficient window or repair the existing ones to resist the airflow.
Choosing an energy-saving window
You should choose an energy-efficient type where the AL rating must range from 0.1 – 0.3 only because the lower the rate, the lesser the airflow coming in through the gaps. This means that you should not allow a rate over 0.3 so it must be tested before using the room.
You may choose a fixed type because this would be airtight when properly installed but this won’t encourage ventilation. Other types, such as awning, casement, and hopper have low AL ratings since they are closed or securely installed and this will not allow airflow. Lastly, we have the single or double-hung/sliding type but it is not that efficient due to high AL.
ER and AL are important factors to consider when installing a window that’s why standards are set for a better home setting – click this to learn more. The rates will depend on the heat coming in and out.
If for the AL, it has to be the lowest rate, it would be different for the ER. The rate will range from 25 to 35 points. This means that the higher the points, the more it would be efficient.
So if you are choosing a window, you should also make sure that it has greater ER points just like the fixed styles which have the lowest AL. However, it is ideal to compare different styles first before choosing what to install in your home, and don’t forget to deal only with an expert.