Thermal Pane Window.
Thermal pane windows are made up of multiple panes (double or triple) of glasses separated by insulating gases. These windows reduce the transfer of heat between inside of the house and the outside environment, and this in turn reduces the consumption of power for cooling or heating the homes. This makes thermal pane windows more efficient than the single pane windows.
Thermal pane windows have different glass panes separated with a perfect vacuum. Since it is difficult to obtain a perfect vacuum between the glass panes, the space is filled with insulating gases. This reduces the heat transmission between the 2 sides of the window. During summers, the windows block heat entering into the house, and during winters, heat from inside is prevented from going outside. This helps in saving the energy used to cool and heat the house.
Argon, krypton and xenon gases are used for insulation between the glass panes. Krypton and xenon are rarely used while argon is more commonly used due to its efficiency and affordability.
Most thermal glass panes, with proper maintenance, can last up to 10 years. The life of the thermal panes depends on the type of thermal pane and different manufacturers offer different warranty period for the window panes.
Low emissive or low-e coating is a coating of a metallic oxide layer applied to the inner side of the glass pane. This coating greatly helps in reducing the transfer of heat from warm to cold atmosphere. Low-e coating helps in reducing energy consumption, and thermal pane windows with low-e coating have high energy efficiency. Normal triple pane thermal windows are more efficient than the normal double pane thermal windows while double pane windows with low-e coating are more efficient than triple pane windows without low-e coating.
One of the most common problems associated with thermal pane windows is that over the time, the space between the panes leak and can lead to the development of moisture between the panes. The moisture developed between the panes reduces the energy efficiency and also make the glasses unclear.
Some manufacturers say they are able to remove all the moisture between the glass panes by drilling small hole at the top of the glass and applying moisture control membrane over the hole to let the moisture escape the glass. Sometimes this technique doesn’t work and therefore the glass panes need to be replaced. However it is not necessary to replace the entire window, instead replacement of panes is enough.
Window issues are a very passionate item for many home buyers. When a window seal is failed it might be difficult to see through the glass, and there could be a cloudiness / haze between the glass or even moisture or condensation present between the glass. This is yet another reason to look at every window and not just a representative sample of them.
How to Determine if a Window Seal is Failed
Beyond just looking at the window and seeing the moisture or other signs there is a simple test that can be performed using very little technology or tools. When the gas between the glass escapes it is transposed with normal ambient air; this air between the glass reacts with pressure or temperature change, and that is why the condensation will form.
Using a simple ice cube and holding it on the glass with temporarily change the temperature of the gas between the glass. If the condensation or moisture form the ice cube is only on the exterior or surface of the glass, the window is fine, but, if the moisture is located between the two panes of the glass then the seal is failed.
Spend time with the windows and create a common routine to your inspections. Windows are important and not will replace a thorough and professional inspection.