Higher humidity (80%+) in the coop when it rains, snows, or it's damp out?

[Dillychick]

So I added an additional vent on one of the shed coop gables. I have an enclosed run which I close at night. I am still leaving the pop door open since it's still above 50 degrees most nights. I close the windows and the main door depending on conditions. l've read optimal range for humidity reading is between 30 to 70%. I'm so worried about this humidity thing. I clean up after the 7 hens and 2 roos daily. They have pine shavings and pdz in the coop. Tonight at around 7 p.m. when I went out to lock 'em up, they were all in their roosts, after 6 hours of steady downpour the humidity was 76%. I'm using a
ASX Design SUKRAGRAHA Mini Digital Temperature Humidity Meter Gauge Thermometer Hygrometer LCD Degree Fahrenheit (F) Display Black
Sold by: AM_store for $7.49 bought from Amazon.

So again, thanks for your patience, indulgence, and advice.

 

[21hens-incharge]

One thing to know is that you will not get the humidity lower than what it is outside.

Check what the humidity is outside the coop too.

I don't need precise readings so I use the cheap ones from Home Depot. They give me a close ballpark reading. Actually more accurate than I expected.

I know it is stressful when we are told keep the moisture low and we are at mother nature's mercy.

 

[Dillychick]

One thing to know is that you will not get the humidity lower than what it is outside.

Check what the humidity is outside the coop too.

I don't need precise readings so I use the cheap ones from Home Depot. They give me a close ballpark reading. Actually more accurate than I expected.

I know it is stressful when we are told keep the moisture low and we are at mother nature's mercy.

THANK YOU!!! I will definitely sleep better.

 

[21hens-incharge]

You're welcome.

I try to keep my inside humidity close to what the outside is.
If I am 10% or more above the outside I look for a reason.....
Have I cleaned the poop up?
Did a water dish get spilled?
Do I have a roof leak?
Are the windows needing opened?
Did a vent get blocked?
Do I have enough vents?

Just logical stuff.

 

[Alaskan]

You're welcome.

I try to keep my inside humidity close to what the outside is.
If I am 10% or more above the outside I look for a reason.....
Have I cleaned the poop up?
Did a water dish get spilled?
Do I have a roof leak?
Are the windows needing opened?
Did a vent get blocked?
Do I have enough vents?

Just logical stuff.

X2.

And in general.... most coops don't have enough ventilation, especially when windows are closed.

By "enclosed run" do you mean roofed?

A run that is roofed is great since then the coop wall that is sheltered by the run roof, can have huge open windows and still not run a risk of rain blowing into the coop.

 

[aart]

I close the windows and the main door depending on conditions.

Coop needs ventilation 24/7/365.
Pics of your coop, inside and out, would help us help you.