That one would be pointing kind of to the back slightly up maybe, so like that. And now your middle finger is going to point in the direction of the normal vector.
The number of undiscovered cases is probably much higher but apparently nobody is able to number the damage for industry and society. In any case, the industry is alarmed.
But the U.S. has more than 100 million existing homes, and it would be incredibly wasteful to tear them all down and replace them with greener versions.