The Hidden Risks of Poor Window Installation and Flashing in Buildings

Water leakage can negatively affect a property’s structural integrity and longevity. If not unaddressed promptly, it can lead to the growth of mold and mildew, which can cause allergies, asthma, and other respiratory problems.

Windows and flashings are two of the most important elements that help prevent water leakage in buildings. If these components are not correctly installed, water may seep into the structure and cause damage.

Windows are barriers that help keep rain, wind, and moisture out. Proper window installation strengthens a building’s protection against external elements. If the windows are not installed properly, it can cause problems for the building. Some common factors of incorrect window installation are inaccurate measurements, poor shimming, and bad sealing.

Appropriate flashing is also a significant factor that helps protect against unwanted moisture and air infiltrating the building envelope. This thin layer of waterproof material directs rain and moisture away from the building’s joints and seams. Installed along the windows’ top, bottom, and sides, it creates a watertight seal and prevents water from seeping inside. Faulty flashing is caused by incorrect material, insufficient overlap, and misalignment with the building envelope.

Improper window installation and flashing can pose different risks to properties and their occupants. Owners must know the signs of water damage so they can consult a professional for a thorough assessment.

A professional NJ structural engineer can help determine the source of water leakage. Their diagnosis enables timely intervention to prevent damage to the building’s foundation, walls, and floors.

In determining the cause of the problem, a competent structural engineer New Jersey follows a systematic method. This includes reviewing the building plans, gathering details from affected building occupants, and physical inspection of the property. Professional engineers also have the knowledge and experience to recommend whether a more intensive inspection is required to determine the cause of water leakage.
Learn more about the different risks of poor window installation and flashing with this infographic by Lockatong Engineering.

NJ structural engineer