Roof maintenance tips for chimney flashing and gutters

Homeowners are advised to perform preventative inspections of their roofs before the autumn season to avoid costly water damage. A critical area of concern is the junction between the roof and the chimney. Often, leaks do not originate from the tiles themselves but from the flashing—the metal strips made of zinc, aluminum, or lead that ensure watertightness between the masonry and the roof.

Because flashing is a point of structural rupture, it is susceptible to aging, sealant shrinkage, and damage from temperature fluctuations. Replacing or repairing flashing typically costs between 200 € and 800 €, whereas ignoring small cracks can lead to structural repairs costing tens of thousands of euros.

Additionally, professional roofers perform specific technical checks on gutters following repairs. A common practice involves running a hand along the inner edge of the gutter to verify the slope and water flow. Proper gutter alignment is essential for the longevity of the roofing installation and to prevent sanitary issues during warmer months.