We Live On Long Island Ny Where The Lowest It Gets Some Times On A Cold Winter Is Single Digets. My Oldest Frizzle Is 9 And Had Silkies About 8 Yrs Here With Out Any Problems. They Are In A Solid Wood Coop 3/4 In Plywood With Windows That I Keep Closed But Do Have Vents That I Keep Open. No Type Of Heat. I Give Them A Little Extra Scratch. I Dont Let Them Out When It Rains Because The Water Does Not Repel On The Silkies. In The Run I Staple 3 Mm Clear Plastic (for Table Cloth Cover) From Walmart In The Sewing Dept. ( Only Walmarts With The Cut By The Yard Fabric Carry It). I Dont Enclose The Run All The Way For Ventilation
I moved mine into the barn with her best friend who is molting right now. When my frizzle stretches her neck out I can see bare skin and I get cold just looking at her. I have a empty stall in my barn so I put her in there until it gets warmer here.
I live in NC, & my silkies did fine in the winter, they had a coop & run the run was a 10x20 dog pen and on the corners of the pen i had sheets of roofing tin over their roosts, the roosters wouldnt even go in the coop! they stayed on the outside all winter!
