How to Find Roof Leaks, Make Roof Leak Repairs

How to repair gaps on roofs joints

For gaps on or near flashing Thin aluminum sheets, called flashing, typically get installed under shingles to build a form-fitting barrier around anything that juts through a roof (a chimney, for example). Look for gaps in caulk, sealant or cracks on or around your roof’s flashing. If you find a gap under ¼”, it may be a simple fix once you brush away debris and old sealant remnants. Just apply roof cement with a putty knife to any cracks you see in the sealant around the flashing. However, it’s always a good idea to bring in a professional to assess the situation first.


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