> How does humidity somehow get past the foam while being kept there? I never see any evidence for these claims. Open cell: * https://buildingscience.com/docu

> How does humidity somehow get past the foam while being kept there? I never see any evidence for these claims. Open cell: * https://buildingscience.com/documents/building-science-insights/bsi-126-dirty-harry-does-insulation https://buildingscience.com/documents/building-science-insig... * https://buildingscience.com/documents/building-science-insights-newsletters/bsi-016-ping-pong-water-and-chemical-engineer https://buildingscience.com/documents/building-science-insig...