Windows are one of the most vulnerable parts of your home during extreme weather conditions. Thunderstorms, windstorms, rainstorms, tornadoes, and other disasters can break them, however, if they are old or poorly installed the inside of your home is at risk.

Sealing gaps and small openings in your older windows using a weather-stripping agent can help prevent a flow of water or a draft coming from the outside. Adding weather-stripping to window sashes also helps regulate the heat or coolness inside the house. This helps ensure that your entire household can still be comfortable despite the weather outside.

It is not uncommon for even the best, most well-designed windows to let some water through after a severe rainfall. A design feature of modern windows is the addition of water drainage channels.

Old, poorly installed or bad windows will pool that rainwater and allow it to leak into the home. Drainage channels are designed to move water away from the wall, and prevent leaks.  They also prevent pooling that can result in moisture damage.

When talking about water drainage in modern windows it is important that this water stays between the operable parts of the window without penetrating the sealed unit or frame components.

As with most things related to high-efficiency windows, correct installation is crucial in ensuring the drainage channels function properly. If the window is not level, an excessive amount of water will pool on one side of the window. Similarly, if a window is not installed plumb into the opening, with the panes tilting inward or outward, the water may not be allowed to drain away from the frame.

While drainage channels are suitable for all operable windows, slider and double slider windows tend to experience the most issues with water drainage channels. This is because their design integrates more grooves for water to collect in.

An extra feature that comes standard with windows that have drainage channels are the exterior drainage flaps. Essentially these flaps act like a one-way door and let the water out without allowing insects to enter your home.

Remember, proper water drainage is essential to the longevity and efficiency of your windows. Ensuring that as little water as possible collects in your windows will prevent damage to your house and save you money in the long term!