When Roof Flashing Fails: What You Need To Know

The flashing is an essential component of any residential roofing system. But as with any construction elements, it can fail over time, especially if it wasn’t installed properly or maintained regularly. This guide provides a concise overview and looks into the possible causes, signs and effects of roof flashing failure. We also discuss how to prevent it from occurring.

Overview of Roof Flashing

Roof flashing is a thin, impermeable material, usually made of metal or rubber, that acts as a waterproof barrier between roof surfaces. It is commonly found near or around areas where the roof meets other building components, such as valleys, vents, and chimneys.

Different types of roof flashings protect different parts of buildings.

• Copper flashing was installed around the perimeters of skylights.
• Galvanized sheet steel flashing placed on low-slope roofs outside air conditioners.
• Aluminum counter flashings are used on asphalt shingles near hip ridges.
• Step flashings are fitted around chimney openings so they can shed rainwater away from the structure and prevent it from accumulating and causing water logging issues inside attics.

Signs of Roof Flashing Failure and Why You Should Address It

The presence of leaks and various types of roof damage indicate flashing failure. Dents, discoloration, and other physical damage indicate material deterioration, as well as leaks through sealant connections between surfaces. Expect to invest in residential roof replacement if the flashing failure isn’t addressed as soon as possible.

Causes of Roof Flashing Failure

Poor installation, rust, use of low-quality materials, and weather can damage flashing. It may fail to protect against water intrusion if not properly fitted or secured with high-quality nails. Rainwater can leak through poorly installed flashings and harm the attic and the rest of the interiors. Metals exposed to the elements usually corrode and wear out. Poorly installed flashing may weaken due to extreme weather conditions.

Preventing Roof Flashing Failure

Roof flashing failure can be prevented by taking some simple steps.

• After every storm, make it a habit to check for existing signs of damage first to avoid any further complications caused by hidden problems.
• Quality components should always be used during roof installations.
• Regular maintenance also plays an essential role in preventing premature flashing failure and spotting underlying issues before they become more serious down the line.

For roof repairs and replacements, turn to Crown Roofing LTD . Count on our experienced team of roofers to ensure all of your roof’s components, including the flashings, are in good shape. Call us today at (604) 370-6288, or fill out our contact form for a free estimate. We serve clients in Vancouver, Surrey and the surrounding communities.