I think shit is a great referent, now that I think of it. We have seen it
mainly on brick, but also on terra cotta block a few times...

Molly

-----Original Message-----
From: Ralph Walter <[log in to unmask]>
To: [log in to unmask]
<[log in to unmask]>
Date: Tuesday, October 12, 1999 12:18 PM
Subject: Re: Black Stuff


>Molly,
>
>We have run into bituminous stuff (since you're a female person, I'll
resist
>the urge to call it "shit") applied to the interior faces of exterior walls
>as a waterproofing membrane, so that the wind-driven rain gets stuck
>"outside" instead of being  allowed to pass all the way through the wall.
>The prob is that there are voids in the bituminous material and the water
>makes it through anyway.  We've seen it applied to the inner face of
(really
>shitty) CMU backup walls from the 50's-60's, which themselves are full of
>voids (since they're backup walls, after all).  I presume in your
>recently-seen theaters, you saw this stuff on terra cotta.
>
>Ralph
>