Do Smart Vapor Barriers Really Work? Vapor Permeable vs Impermeable, ZIP System, and More! | Q&A #1

In this first ASIRI Designs Q&A session, the main topic of discussion is vapor and vapor permeability/permeance of materials and the importance of permeability as it relates to a material's characteristics within a building assembly and the greater building envelope. In this Q&A we talk about:

0:16 ZIP System in Double Walls vs Plywood
2:08 Basement Walls with Housewrap and a Vapor Barrier
3:58 Do Smart Vapor Retarders Really Work? What is the Cheapest Vapor Retarder?
7:23 Why Not Always Use a Vapor Open Air Barrier?
9:31 Insulating an Old Farmhouse

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