Proper Exterior Window Protection

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Improper building water protection is often a critical oversight in the construction process, and yet it is a crucial component when it comes to ensuring the integrity of a building's exterior. Exterior waterproofing serves several key functions it prevents water from penetrating into the wall cavity, shields the exterior finish from the elements, and prevents wind-driven rain damage.

Water is an deadly foe of buildings, and it only takes a small amount of water intrusion to cause significant damage to a building over time. Water can enter a building through a variety of means, including cracked or poorly installed flashing, and once inside, it causes extensive damage by creating an ideal environment for mold and mildew growth.

Flashing around windows should be installed at each junction where the window meets the surrounding wall. This typically includes the sill, the top, and the exterior joints of the window frame. Proper flashing should be a continuous barrier that prevents water from entering the wall cavity through these critical joints.

When installing window flashing, the most critical component is the proper installation of the flashing itself. Flashing must be cut to fit snugly around each joint, and extending beyond the wall surface to ensure effective water runoff. The flashing should also extend down to the top of the window sill, with each piece sealed with flashing tape.

An often-overlooked aspect of window flashing is the caulk that seals gaps that is used to secure the flashing in place. Sealant is the last line of defense against water intrusion, and it must be properly applied to ensure that the flashing remains secure and leak-free.

While proper window flashing is crucial, there are some exceptions where it may not be necessary to install flashing around a window. For instance, if the window is installed above the upper boundary of the building's façade, with the roof slope being sufficient to direct water away from the window, flashing may not be required. However, even in these cases, it is crucial to ensure that the window itself is properly weather-tight to prevent water entry.

In conclusion, proper window flashing is a critical component of a building's exterior and plays a vital role in preventing water intrusion, protecting the building materials. While the installation process may seem straightforward, glass repair naperville the consequences of improper flashing can be severe. As such, it is essential that builders and homeowners take the necessary precautions to ensure that window flashing is properly installed and maintained.

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