Basement Insulation Question
Hello, I'm working on insulating a 1940's basement with the understanding that there's no external vapour barrier. From previous water intrusion the previous owners installed the framing on a concrete berm to prevent any moisture entering the living area (there's no sump pump). For insulation, I'm using rigid board glued to the foundation with a small gap for moisture to move freely, and leaving a small gap at the bottom. I'm wondering how to handle sealing off the curb portion since the rockwool will be sitting on top of that and it won't be a "true" vapour barrier if that makese sense. Should I somehow adhere foam board horizontally over the ~5" curb gap from the wall to ensure it's a proper vapour barrier? Not sure how much it matters. https://preview.redd.it/wv60irqv4ave1.png?width=1129&format=png&auto=webp&s=9a2a4e37bd351d3c1c2eb5b4a2956634de1c6349 submitted by /u/graemed14 [link] [comments]
| | Hello, I'm working on insulating a 1940's basement with the understanding that there's no external vapour barrier. From previous water intrusion the previous owners installed the framing on a concrete berm to prevent any moisture entering the living area (there's no sump pump). For insulation, I'm using rigid board glued to the foundation with a small gap for moisture to move freely, and leaving a small gap at the bottom. I'm wondering how to handle sealing off the curb portion since the rockwool will be sitting on top of that and it won't be a "true" vapour barrier if that makese sense. Should I somehow adhere foam board horizontally over the ~5" curb gap from the wall to ensure it's a proper vapour barrier? Not sure how much it matters. [link] [comments] |
