I know they have to be water tight because a smart tenant can find loopsholes that can be a pain.How important are REI clubs.

Vinyl siding isn't water tight, and isn't meant to be.

I can see why it would be ill-advised, but with a sealed/water-tight fixture I would expect it to be okay.

I personally wouldn't push it, since the broken exterior pane should comprise the water tight-ness of the window and the energy inefficiency affect will be the tenants to enjoy . . . safe and sound from that pesky virus!

I am talking specific people like a roofing company to make sure you are water tight and have attic ventilation, an electrician, GC or handyman etc - whatever projects you are thinking.

How do I finish the top edge of a single slanted roof to ensure that it is water tight?  

Then I painted the wall with two coats of Drylock, which is watertight.

It is more modern than stucco and therefore (in their eyes better) more able to be water tight.

AnswerIntegrity as a physical description means unimpaired and complete (e.g.the watertight integrity of a ship).

This may or may not hurt the integrity of the basement walls (ie I am assuming they are water tight now, but putting in windows adequate for someone to escape in case of fire may result in water leakage).