Ventilation

[MarvelManor]

BYC rule of thumb is 1 sqft ventilation per bird; greater in hot climates.I think @3KillerBs is in or near Georgia.

Rough calculation with 2x4 rafters is (7*10*4*2)/144 = 4.9sqft so 4-5 chickens.

I'm not understanding the math for the ventilation..lol sorry...since I'm thinking about 6 chickens I should make the ventilation wider

 

[Ted Brown]

"2x4 rafters is (7*10*4*2)/144 = 4.9sqft"

where:
7 is the length of the coop in feet
10 is a swag for openings length (ie reduce 12" to 10 to account for the 2x4 width)
4 is the openings height
2 is for the two sides
144 is sq inches to get to # of sqft.

When I did the full calculation again just now 7*10*4*2 = 560
Divide 560 by 144 = 3.9 sq feet of openings along the rafters (no sure what mistake I made the 1st time, sorry)

You will have to open more ventilation somewhere in the coop to have the 6 sqft you will need for 6 birds.

My calculation is not exact.

 

[Ted Brown]

I borrowed this from @South Dakota Guy

You could do your roof similar to this and get whatever amount of air you want.

 

[MarvelManor]

"2x4 rafters is (7*10*4*2)/144 = 4.9sqft"

where:
7 is the length of the coop in feet
10 is a swag for openings length (ie reduce 12" to 10 to account for the 2x4 width)
4 is the opening height
2 is for the two sides
144 is sq inches to get to # of sqft.

When I did the full calculation again just now 7*10*4*2 = 560
Divide 560 by 144 = 3.9 sq feet of openings along the rafters (no sure what mistake I made the 1st time, sorry)

You will have to open more ventilation somewhere in the coop to have the 6 sqft you will need for 6 birds.

My calculation is not exact.

No worries..I'm terrible at math..lol thank you again. I do love that idea below

 

[3KillerBs]

BYC rule of thumb is 1 sqft ventilation per bird; greater in hot climates.I think @3KillerBs is in or near Georgia.

Rough calculation with 2x4 rafters is (7*10*4*2)/144 = 4.9sqft so 4-5 chickens.

I'm in North Carolina, about one climate zone cooler than the majority of Georgia.
Generous ventilation is CRITICAL here in the Steamy Southeast. I find that I need either DEEP natural shade or at least 2-3 times the usual recommended ventilation to keep a coop under 100F on a 90F day.

Repecka Illustrates Coop Ventilation

 

[3KillerBs]

PS, an Open Air coop -- a roofed wire box with a 3-sided shelter at one end -- is an excellent choice in a hot climate.

Open Air Coops

https://www.backyardchickens.com/articles/jens-hens-a-southern-texas-coop.75707/
https://www.backyardchickens.com/articles/my-positive-local-action-coop.72804/
https://www.backyardchickens.com/articles/california-living.68130/

 

[Ted Brown]

OP is in North Carolina as well.

I hope she/he reads this and takes heed. Thanks for the response.