Originally Posted by AGWhitehouse
Please explain because this statement makes no sense to me...
Can this be verified? Or did you make it up? How often is caulking of a metal box done properly? I would bet money it's less than the install of the foam gasket.
Remember that everything can be made to look good on paper. Hell, the US Government looked awesome on paper when it was starter, but look at the mess now. There is a balance between form and function and if one process works really good but is a bear to install then essentially, over the spans of contractor ability, it will function the same as the works good product that is easy to install.
I agree with you wholeheartedly about the US government.
In terms of the gaskets, we still see copious amounts of leakage during depressurization tests with the gaskets installed around the outlets.
Many of the switch plate covers do not compress the gasket into the drywall and form a proper seal depending on the style of the cover.
Combine that with the fact that most people throw spade plug gaskets in the center and do not install them over the plug, you get air leakage through the outlet itself.
The best way to do it is to remove the cover, put a bedding bead of caulk on the drywall around the outlet, stick the gasket into that caulk, replace cover, install gasket over the spades on the electrical wire or install child safety cover with the gasket over it.
I am not saying that caulking of the metal box should be your first option because many drywallers leave huge gaps that would require foam or backer rod to cover it, however, just slapping the gasket up there does not do the trick either. The combination effort is ideal.