Drywall Bubbling or Blistering — Water Damage Evidence
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Common Water Issue in BC

Drywall Bubbling or Blistering — Water Damage Evidence

Bubbling or blistering drywall in BC homes indicates water damage to the gypsum core. The paper facing separates from the gypsum when wet, creating a blister.

Possible Causes

  • Plumbing leak within wall causing water saturation
  • Exterior water entry through building envelope failure
  • Roof leak allowing water to run down inside wall cavity
  • Condensation within wall from thermal bridging or vapour barrier failure
  • Flooding or major water event that soaked the drywall

Recommended Steps

  • 1Do not puncture blister — water may be trapped behind paper
  • 2Check moisture content of affected area with moisture meter
  • 3Identify water source by noting timing and conditions of moisture appearance
  • 4Call professional leak detection to find source before any drywall repair
  • 5Drywall with water damage must be removed and replaced — it cannot be dried

Need Professional Help?

Don't let a small leak become a big problem. Contact LeakInspections.ca — a division of Anyleak.ca and Leak.ca — for expert diagnosis.