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

Causes

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

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

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

The self-adhesive strip failed to fully adhere during cold weather installation

Listed under: adhesives and sealants, adhesives, Roof, cladding, wind, roof cladding, asphalt shingles

Cause

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

Repair

  • add extra bituminous adhesive under each tab as recommended by the manufacturer, and press firmly in place

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Cause

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

Repair

  • add extra bituminous adhesive under each tab as recommended by the manufacturer, and press firmly in place

Back to top

Cause

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

Repair

  • add extra bituminous adhesive under each tab as recommended by the manufacturer, and press firmly in place

Back to top

Cause

The self-adhesive strip failed to fully adhere during cold weather installation

Repair

  • add extra bituminous adhesive under each tab as recommended by the manufacturer, and press firmly in place

Back to top