https://www.lowes.ca/subfloor/barri...ology_g2582316.html?searchTerm=Subfloor-Panel
如果铺了这个,还需不需要铺 underlayment 像这个?
https://www.lowes.ca/floor-underlayment/protegga-tt8000red-tile-underlayment_g2647414.html
第一个 subfloor 介绍里说已经防潮了,但是是2尺见方拼接,接缝还会有缝吧,那还需不需要红色的防潮膜?