In this episode of the Build Show sponsored by Siga we are discussing vapor barriers. When and where do you need them, how to install them, AND the importance of air sealing on the inside of your house especially in cold climates. Big thanks to SIGA for flying us to Switzerland and giving us a fantastic tour of local job sites plus their beautiful factory. Impressive company! BIG Thanks to SIGA for hosting us. https://www.siga.swiss/us_en/ A TON of Behind the Scenes - https://www.instagram.com/risingerbuild https://www.instagram.com/thebuildshow More reading on this topic: Controlling Moisture in Mixed Climates by Joe Ltiburek and Joe Carmody Avoiding Wet Roofs (parts 1 and 2) by Peter Yost https://www.jlconline.com/how-to/insulation/avoiding-wet-roofs_o Avoiding Wet Walls by Clayton DeKorne A One-Way Vapor Barrier? by Ted Cushman The Last Word (We Hope) on Vapor Barriers by JLC Staff Huge thanks to our Show sponsors Polywall, Huber, Dorken Delta, Prosoco, & Rockwool for helping to make these videos possible! These are all trusted companies that Matt has worked with for years and trusts their products in the homes he builds. http://www.Poly-Wall.com/ http://www.Dorken.com/ http://www.Huberwood.com/ http://www.Prosoco.com/ https://www.Rockwool.com/