Waterproofing Particleboard subfloor
We are doing a conversion of a mostly-unfinished bonus room to a laundry/utility room. The exposed and unfinished subfloor is particleboard. The owner plans to put down LVP.
The question in my mind is whether we need to put some sort of waterproofing down before the LVP to try to avoid damage to the subfloor from a potential water hit. And, if so, what type would we use?