Staff Answer
Jan 05, 2022 - 01:16 AM
A lot depends on what your subfloor is. But a good general guideline is "yes, you want to install over a level subfloor" because sheet goods like Marmoleum will telegraph through any flaws, cracks, humps, dips and other challenges present in the subfloor.Here is the Installation Manual https://www.greenbuildingsupply.com/c... and the Substrate Evaluation https://www.greenbuildingsupply.com/c... which will tell you all that needs to be achieved for install.
