Yeah, because they're designed to fail! It's not as if there aren't better mechanisms out there, like these levers
I refuse to buy replacement crank mechanisms. Maybe if the frame weren't made of vinyl that warps with so little as the heat of the sun, then maybe the windows wouldn't jam and cause the cranks to fail. The whole thing reeks of a scam to me. It's just madness that this is the industry standard!
I have replaces many of those as well, and they get jammed up just as much on vinyl. I'm not saying casement are the best option. They are not. horizontal sliders are very good, but if a vertical slider is needed a casement is better as its easier to repair. As well. Well built windows have reinforcements where the crank attaches.
There is a reason why I suggest quality windows from a reputable company. That is one of them. Installation also makes a difference with those cranks. if the window is put in level rather then adjusted for ease of opening it can ruin the locks and cranks.
The industry standard for windows is retarded. There basically is no governing body on how they are designed or built. As long as they block a certian level of water and air they pass. Which in itself is a good idea BUT they guidelines on how much air they can leak is foolish. Way to much IMO. I dont remember exact numbers though. Stainless steel screws should also be used but never are.
The wood or foam cored vinyl is MUCH better with warpage.
Now to get technical its much better to purchase windows from outside southern Ontario.
Windows in SO only have to be rated for -10 or -15 deg. While windows from northern Ontario have to be rated for -25.
I did say earlier in this thread that I find house windows a PITA and the above mentioned is the reason. The industry standard is far to low. I also routinely get refused the jobs because I refuse to quote with inferior products. Id rather pass the job onto someone who will.
Oh and for anyone interested. New condos are even worse. Engineers came up with a "great idea" to stop air leakage but in return have caused condensation on the windows which is already causing mold and ruined floors/mouldings. So to anyone buying a new condo, be careful.
Oh and for the record a house can be done easily for 10k. But if you plan on living in that house for a lifetime expect double that or more. For 10k you should get 10-15 years depending on exposure.
And an upgrade to self cleaning glass is fine. As long as its minimal. There is a very small cost difference between the cost of regular glass and self clean.
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