8 Roof Flashing Fails Infographic

Roof flashing, though often overlooked, is a crucial component of your roofing system, serving as a barrier against water incursion. Over time, however, it can fail for several reasons. Rust is a primary culprit; rain and moisture can corrode the flashing, compromising its ability to form a proper seal. Wear and tear from constant exposure to the elements can also degrade flashing, making it less effective. Additionally, dramatic temperature changes can cause the flashing to shrink and warp, creating gaps that allow water, insects, and small creatures to penetrate.

DIY attempts to replace or repair flashing often end in disaster, as proper installation requires professional expertise to ensure effectiveness. Hiring inexperienced contractors can be risky, as poor workmanship can lead to improper installation, allowing water to seep through loose flashing and causing further damage. Debris from overhanging trees can also damage flashing by scraping against it or pulling it away from the roof, leaving holes and gaps for water to enter.

Flashing materials, while resistant, will eventually disintegrate over time. Therefore, it’s important to consult with your roofer about the best materials for your local conditions. Finally, ineffective sealing can lead to water infiltration. Nails securing the flashing need caps, and all edges must be sealed properly to create a watertight barrier. Without these precautions, flashing will fail, leading to potential water damage.

source: https://gobighorn.com/why-roof-flashing-fails/

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