humidity

mangerton

mangerton

Member
why does my room go from 55% humidity one day down to like 20% the next. my outside air humidity is normally 40 plus % grow room temps are normally in the 82f and the air that goes in my room is about 77f

is it maybe im not moving enough air i dont see how thats a thing id thought id be high with less air movment . it cant be moving too much as im only using a 4inch exhaust fan at the moment
 
PadawanWarrior

PadawanWarrior

Well-Known Member
Need more info. Do you have a tent in a room? And are you exhausting the tent into the main room? Also, do you have windows open to the outside when the Rh is lower? The Rh will build up in the main room if that moist air has no where to go.
 
mangerton

mangerton

Member
PadawanWarrior said:
Need more info. Do you have a tent in a room? And are you exhausting the tent into the main room? Also, do you have windows open to the outside when the Rh is lower? The Rh will build up in the main room if that moist air has no where to go.
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grow cupboard exhausting out the window and taking fresh air from the room the cupboards are in. its not re using the same air. (no window open i vent out that ) just door to the main house.

my house air environment is stable so i dont understand why such a difference in the cupboard . i also take my reading from the highest point about 5ft. if i take a reading on the grown its higher then on the roof by about 10% or so
 
Jypsy Dog

Jypsy Dog

Well-Known Member
mangerton said:
my outside air humidity is normally 40 plus
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That can change by the hour... Unless your in a tent, your fighting ambient humidity. Grab a Hygrometer for outside the cabinet. See how wide the swing is. Or check online for your area.
 
mangerton

mangerton

Member
Jypsy Dog said:
That can change by the hour... Unless your in a tent, your fighting ambient humidity. Grab a Hygrometer for outside the cabinet. See how wide the swing is. Or check online for your area.
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its not a big issue at the moment. plants have bounced back pretty quit from the several problems ive had this grow... now i remember why i didn't grow in this warmer weather. been like 4 yrs since i did summer grow. i have a feeling its just my Hygrometer playing up as its about 2 yrs old now with out changing batteries. i upped my air circulation not extraction and it looks like its evened the humidity out some what although i wont know until i pick up new equipment. ebay takes a long time
 
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