A failure in the seal of a double-paned window allows moisture to enter in amounts that are too large for the absorbent silica pellets in the window to prevent. Double-paned windows have a layer of gas between the two panes. Constant expansion and contraction of this gas as temperature fluctuates throughout the day places stress on the seal, causing it to fracture.Know More
Some windows are more vulnerable to seal failure and the resulting moisture between the panes. Windows on the sunny side of a house experience more extreme fluctuations in temperature, resulting in more expansion and contraction. Vinyl windows have a higher failure rate, while some batches of windows contain manufacturing defects that cause the seals to fail.
Riverbedding and silica haze are two results of moisture condensing on the inside of double-paned windows. When water condenses and runs in narrow paths carving grooves into the window it is called riverbedding. Silica haze occurs when the silica pellets erode and accumulate on the window surface.
Condensation may not always occur when a window seal fails. In this case, infrared cameras can be used to record differences in temperature and detect failure. Replacement of the glazing assembly, sash or entire window is often necessary, depending upon the severity of the problem.Learn more about Doors, Windows, & Locks
To replace a window pane, remove the old window pane and old putty, apply a thin layer of new putty around the window frame, and insert the new window pane. Seal the frame with putty, and smooth the putty with a putty knife.Full Answer >
Install grids in a window pane by cutting vinyl grid material, connecting the lengths and securing them to the surround that attaches to the window with hook-and-loop tape. A tape measure, grid material, scissors, connectors and hook-and-loop tape are required. The process takes under an hour.Full Answer >
To seal windows for the winter, scrape off old paint and caulk, wash the windows, apply caulk to the exterior windows, and apply weatherstripping to the interior windows. Sealing windows is usually easy, but it can take a few hours.Full Answer >
Double-hung window panes can be removed by sliding the tilt latches towards the center of the pane, pulling the window pane out 90 degrees and raising up one side vertically to free the pivot pins. The process is repeated for the other window pane.Full Answer >