Tag Archives: 07 21 00?Thermal Insulation

Using Temperature to Control Condensation in Cold Climates

Photo © BigStockPhoto/Pavel Losevsky

Initially, water vapor diffusion was seen as the likely culprit for condensation problems; designers and consultants spent hours running and analyzing wall assemblies using the dewpoint method. With such analyses came the concept the wall system should be tuned for maximum condensation resistance by altering or selecting the appropriate permeability of the wall components. However, to create a truly robust wall system with the greatest condensation resistance and drying potential, designers need to look at altering the temperature profile of the wall assembly by moving insulation as far as possible to the exterior of the wall.

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Passive Fire Protection and Interior Wall Assemblies

All images courtesy ClarkDietrich Building Systems

To ensure optimal fire protection, building codes require interior wall assemblies to be evaluated by industry standards to determine their fire performance. This article gives examples of fire-rated wall assemblies and passive firestop systems, describing the testing they must go through to achieve their fire ratings. It also covers best practices for the specification and installation of each.

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