Rough openings are holes in the building enclosure, fitted with fenestrations that leak or will leak. It is critical to properly direct those leaks out of the enclosure. Designs for rough opening specify; tapes, sealants or flashing materials that are water, air, water vapor tight or vapor open. When detailed and installed correctly, most of these materials prevent water from entering into the interstitial wall cavities, allow the “leaks” to drain out of the building enclosure. Tapes, sealants and flashing components can fail over time or are improperly installed allowing water intrusion, trapping the water is vapor impermeable. By utilizing vapor open systems for rough opening materials, water that once trapped by impermeable flashing systems can escape via vapor diffusive drying. This presentation will describe failures, correct installation and testing of rough opening flashing and address current research on vapor open rough opening systems and how permeability enhances rough opening assembly performance.

Upon completion of this course, the Learner should be able to:

• Explain rough opening installation systems as described by published guidelines
• • Understand rough opening testing
• • Determine proper sequencing, installation and products used for rough opening installations
• Recognize drainage and drying mechanisms and the benefits of permeable rough opening systems
• Know the differences between vapor tight and highly permeable rough opening systems for fenestration flashing installations

Approximately 1 hour. Delivered via webinar or face-to-face presentation. Available sessions shown below.

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This course is registered with: 1 Industry Association(s)