Posted By RinkevichJM on 23 Feb 2015 12:54 AM
LBear
I have seen what the weight of a child can do to regular door hinges and have no doubt that could do to those on a tilt and turn or casement. Also I notice no one ever mentions what happens mechanically inside a crank long term: they don't close fully and then they leak worse than any slider. The passive house test is slightly rigged: why don't they test with positive inside pressure which is the more normal case. IDECs (actually all ECs) create quite a bit of internal pressure because they have open the attic up ducts. Because the temperatures outside in summer are higher then inside high IR rejection is really important.
A heavy duty T&T window like Intus will not have the hinges damaged from regular or even rough use since the hinges are screwed and reinforced into thick gauge tubed steel. There are no crank assemblies in T&T windows. Casement, yes.
T&T and casement windows PULL the window tight when they are closed. Sliders and single/double hung windows can't do that. The track the slider rides on is open to the outside 24/7. If you took an air gun and blew onto the track the air would leak outside. Better yet, a simple smoke pencil test will show that all sliders leak air around the track area and where the two window portions meet.
I didn't understand what you meant by, "the weight of child"? Are you referring to a child swinging/hanging from a window?
There is no "rigging" in the PH testing since the blower door test is standard protocol by DOE, ORNL, etc, and is the recognized standard of testing by building scientists. How would one even use a smoke pencil on a positive pressure test as it would require going outside the home and the outside winds would skew the leak detection?