OK, I have to say, I don't really know what was going on.

I was on my way to work and saw a "roofing crew" atop a house and
noticed that they had Tyvek spread out all over the roof. They also
had bundles of shingles waiting.

I ASSUME they were going to put the shingles over the Tyvek.

Of course, I grew up with the 15/30 pound felt option.

Anyone know if this is the future. I have a shed I will probably have
to roof in a few years....