rruff wrote:QueticoBill wrote:Probably belongs in another thread but I too am concerned about the dimensional stability of XPS in my build. I've seen large stressed skin panels - 4 x 8 and larger - literally tear themselves apart. TO be fair, they were aluminum fame (perimeter only) and the solution was to use slotted connections of the frame.
Can you describe what was happening there in more detail? What was the skin? What was tearing apart from what? What caused the change in dimension?
XPS core, p-lam skin, extruded aluminum perimeter. Skin swelled and buckled breaking bond, or pulling foam apart under bond. I didn't see inside after.