Best chemicals for cedar shake roof cleaning

what is everyone using for cedar roof cleaning? can i use the same chemicals for cedar as i do for asphalt - I.E SH and fresh wash…
do you change the concentration at all??

How about sodium percarb and oxalic acid

thats what we ended up using… turned out great but was a lot of work …

Oxygen bleach is the suggested chemical for cleaning cedar shake roofs or wooden decks. It’s a non-hazardous powder which is mixed with water and sprayed on the shakes with a general garden pump-sprayer.