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Tiled deck or patio – loose tiles

Asphalt shingles – lower edges (tabs) of shingles are lifting

  • Wind has lifted the lower edges of shingles, particularly when the adhesive may have become soft in warm weather 

    How to repair

  • Tabs were not secure because the sealing strip did not line up with the adjacent shingle when they were installed 

    How to repair

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Asphalt shingles – missing or damaged ridge shingles

  • Wind has lifted the lower edges of shingles, particularly when the adhesive has become soft in warm weather 

    How to repair

  • Inadequate tab adhesion to the course below

    How to repair

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Asphalt shingles – cupping and/or curling shingles

  • Tabs were not secure because the sealing strip did not line up with the adjacent shingle when they were installed 

    How to repair

  • Incorrectly nailed shingles, for example where nails were fixed through the sealing strip, thereby limiting the effectiveness of the seal

    How to repair

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Bubbles in sheet membrane roofing

  • Poor adhesion of the membrane to the substrate

    How to repair

  • Adhesive misses – the membrane is not fully adhered to the substrate

    How to repair

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Delamination of sheet membrane roofing from substrate

  • Incompatible membrane material was laid over substrate, such as rubber membrane over bitumen-impregnated membrane. The adhesives used in a rubber-based membrane are solvent-based and react with the oils in the asphalt, causing the membrane to separate from the asphalt

    How to repair

  • Poor installation

    How to repair

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Sheet membrane roofing – lifting of sheet joints

Wallpaper – roll edges lifting

Wallpaper bubbling

Tiles – cracking

Tiling around showers, baths – sign of water leaks