IIBEC Technical Advisory No. 020-2021: Roof Covering Systems and New Concrete Roof Decks
August 11, 2021
Roof membrane and roof assembly installations over new concrete roof decks have always been prone to moisture-related problems due to latent moisture release by the concrete as it continues to cure. The problems are due to the release of excess moisture from the concrete into the roof assembly, which can impact roof system securement, the roof membrane, roof insulation, and related components. Moisture-related problems for roof membrane and roof assembly installations over concrete decks have increased significantly in recent years with changes in roofing materials, adhesives, construction practices, and schedules.