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Problem: Visible joints, ridging and tape delamination of drywall.

Cause: Environmental conditions.

Lack of sufficient heat or ventilation, especially during winter construction.


  • Maintain a minimum temperature of 50°F (10°C) for two days before and four days after applying joint compound. Loss of bond will occur if the temperature is too cold.
  • Make sure the drywall is kept dry and is free of frost.
  • Protect ready-mixed compounds from freezing.
  • Make sure there is adequate ventilation for drying. Temporary heating may cause high humidity levels.
  • Curing of the basement slab also releases moisture into the air. Allow the slab to cure and remove any surface water before finishing the drywall or delay pouring the slab until primer paint has been applied to the drywall. Provide ventilation.