Guy, what windows do you have in your house?
Great question Opy! Most people think that when they think of MN. Cold & Freezing. All I can say is yes it gets cold here. When it's super cold we stay inside. When I say cold I mean 10 - 20 BELOW ZERO. Then the seeds get cold and staying inside is good for the body.
The freezing weep holes are a myth. If you really think about it. When it's freezing out it's snowing. So the moisture doesn't really get inside. Now if we have the dreaded freezing rain crap. Life sucks and thank god for four wheel drive trucks!!!! Water does get trapped inside and freeze up. Usually if this happens it will warm up soon and drain or just stay frozen until the next warm up. There's never enough water inside to crack the frame when freezing unless the weeping system gets plugged and water dam's up inside. Then I've seen it freeze up and split the frame in half.
Handyman, just to set the record straight. I've never had to clean a Schuco windows weeping system yet. My statement on a 12 gauge copper wire (with no plastic coating on it) is what I use to clean all the other brands. So my post above may be premature on the abilities to clean it that way. Most of the time it's vinyl shavings that were never blown out of the extrusion that plug the weeping system. Since I've never done the Schuco I really can't be sure. So don't come back at someone and say I said so. I'll blame FeneX (he he he)jk