All About Subfloors Step 6: Examine For Mold And Mildew This drops the RH in both levels on the identical time and shortens the mandatory time for drying the subfloor. Steve pointed out that if you end up getting near the required MC, you have to rigorously watch to http://electrician83693.fireblogz.com/26267887/reasonable-solutions-for-sub-floor-ventilation-systems-an-a-2-z