Ok to Wash Roof during the winter? Information Central, Roof Cleaner, Roof Cleaning FAQs A common question this time of year…. Yes, you can use Roof QSE or Roof OX soft wash cleaners anytime the temperature has been over 40 degrees for at least 4 hours. So there may be snow on the ground, but you can still clean the roof. roof cleaning supplies Brought to you by: Cleaner Today Roof Cleaning Tags:roof cleaning, soft wash Related Posts Mold Under Solar Panels Roof Wash Barrel Tile with Roof Cleaner OX Roof Wash – Shingle Shampoo – Roof OX – Oh My!