Uninsulated cottage floor cupping
Clients cottage located in rural Nova Scotia. Built on posts. Floor not insulated. Building not heated when not occupied (most of the time) We installed solid birch flooring, and sanded and clear coated as a finished surface.
Client had asked about the need for vapour barrier between subfloor and flooring. Based on my research at the time, it seemed like this was not necessary.
Now, however, the floor is showing signs of cupping. 🙁
This leads me to wonder, was the vapour barrier the culprit on this one? Or the thermal stress of the floor not being insulated, while the indoor space was?
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