bryanexhaust said:
Notice that the foam has not dissolved even after a few days.
OK.... I'll notice. However, NFPA states that it should not be coated AFTER cleaning:
11.4.8 After the exhaust system is cleaned, it shall not be
coated with powder or other substance.
If they are leaving foam, that is "other substance", correct?
An argument might be "It's not 'done' until the foam stops working, usually 48 hours after the guys leave the job".
OK, but, if thats the case, then they have to return to a job 48 hours later AND replace any access panels that were removed, apply their sticker, plus some other things outlined in NFPA 96. Not to mention, the restraunt is out of service until they can complete the cleaning.
11.4.9 When cleaning procedures are completed, all access
panels (doors) and cover plates shall be restored to their normal
operational condition.
11.4.11 When cleaning procedures are completed, all electrical
switches and system components shall be returned to an
operable state.
11.4.13 After cleaning is completed, the vent cleaning contractor
shall place or display within the kitchen area a label
indicating the date cleaned, the
Notice it says "When cleaning procedures are COMPLETE"....
Maybe I am reading too much into it