Re: [papercreters] Waterproofing

The only really waterproof substances are duck and frog butts. You can make PC less susceptible to water, but not really water proof. Even a good coating, over time will deteriorate. When using PC plan on keeping water away from the material and allow drainage if it does become wet.  This also keeps the cost lower as applied coatings will increase the cost of the spitball bricks.
Asphalt emulsion price is going up. This used to be a fairly inexpensive material. However the refiners have found there is money to be made in saphaula and also there is less of this being made because of the effiency of the refinerys vs. 40 years ago

Kristin Elder <kristin_elder@yahoo.com> wrote:

Hi All,

 

Has anyone had any experience with rub-r-slate? It's a mixture of asphalt emulsion, clay, shredded paper, and sand. I've read that it could be used for waterproofing and am wondering if it would be an appropriate exterior plaster for roof and walls.

 

Also, to those of you who've experimented with prickly pear paint and plaster, just how waterproof is it? Is it something you'd want to plaster a vaulted roof with, would it be waterproof enough for that?. Is it something that you'd need to reapply yearly, or would it last through multiple seasons? Thanks so much for any help! I really enjoy listening in on the discussions, and can't wait to join in with my own experiences once we get building.

 

Kristin

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