[I have been thinking about that...my other coop was a pre built and has no added ventilation, we didn't have any issues last winter.
After reading lots of comments here about ventilation, I was considering adding something like this on the peak on the back and possibly the front...
http://www.lowes.com/pd_17159-52595...0__s?Ntt=vent&Ns=p_product_price|0&facetInfo=
what does anyone think?
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Yes, this is a good idea. Actually there is a formula for how much air should be moved per sq. ft. per hr. to create proper ventilation in a chicken coop.
(Hubby Bob is a retired Respiratory Therapist so I looked that up when we built our coop). We have a 24 sq. ft. coop and use a grate like the one
pictured (with the hardware cloth on the inside of the grate to keep critters out. We use a 4" by 9 " grate for a 24 sq. ft. coop. Here's the formula:
The Importance of Proper Ventilation for Small Poultry Flocks
Using the calculations in this publication will help ensure
proper ventilation for health and well-being of small poultry flocks.
Sheila E. Scheideler, Extension Poultry Specialist
Rick Stowell, Extension Animal Environmental Engineer Specialist
http://www.ianrpubs.unl.edu/pages/publicationD.jsp?publicationId=598
Best,
Karen
ps. screw that thing on tightly so a varmint can't pull it off.
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This BYC thread is much less technical and full of good stats and chat :
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(really useful thread with lots of stats and Patandchickens discussing the subject).
Index » Coop & Run - Design, Construction, & Maintenance » Venting - is it really 1 sq ft of vent per chicken???https://www.backyardchickens.com/forum/viewtopic.php?pid=6434012
Patandchickens' Big Ol' VENTILATION Page ( non-Technical w/ URL's)
https://www.backyardchickens.com/web/viewblog.php?id=1642-VENTILATION