Archive for month: March, 2012

• · Most of today’s windows are made from a frame material and an insulating glass “sandwich”-each component subject to wear, weathering, and potential failure.
• · Weather-stripping in the frame and moving parts can wear out with use.
• · An insulating glass panel may suffer a broken seal after years of expansion and contraction with temperature changes-creating a “fogged” look as moisture accumulates between the glass panels.
• · According to the National Institute of Standards and Technology (NIST), some windows can last up to 50 years.

Some of the factors that go into the determination include:

1. Frame material
2. Quality construction practices and building style
3. Product quality
4. Climate and exposure
5. Routine care and maintenance
6. Replacement of parts that wear with use with an AAMA Certified product that’s cared for, you can expect to increase the service life.

Will new windows eliminate condensation?

• · Condensation is a direct result of interior humidity and the difference between indoor and outside air temperature.
• · Warm moist are seeks a cold surface. This is a basic law of physics.
• · A glass with ice will form condensation. The moist air in the heated room is seeking a cold surface.
• · If you keep the humidity in your house low, then the likelihood of experiencing condensation is also low.
• · However, the efficiency of your window will also impact the temperature and humidity level at which condensation occurs.
• · High performance windows with low U-factors result in inside glass surface temperatures much closer to the room air temperature
• · Windows with warm edge technologies and non-metal frames are also less likely to have condensation on the frame or at the edge of the glass
• · Insulated, high efficiency windows greatly reduce condensation on the interior surface of the glass
• Note that in certain conditions (humid mornings after a clear night sky), windows may have dew on their outside surface
• This “dew” appearance is a sure sign your windows work. Your new high efficiency windows do not change with the exterior conditions.
• The dew will dissipate as the morning wears on.

There are tangible signs your old windows need to be replaced:

• ·Your windows are difficult to open or close.
• The window sash falls unexpectedly.
• You rely on a storm window, and that is highly suspect.
• Drafts are evident. Air leaking through and/or around the windows.
• Excessive condensation or icing on the inside of the window panes.
• Windows rattle in the wind.
• Paint chipping or peeling.
• House is always too cold in winter – or too hot in summer.