Hydraulically-Applied Limestone

[Aaron Miller]

Who has actual hands-on experience with this product, or any NHL 3.5 product?
StoneCoat–First time limestone is sprayed on any wall or ceiling (http://stonecoat.com/)

[Benjamin Thompson]

That's nothing new, I have been doing that to my windows for years with my lawn sprinklers.:)

[Scott Patterson]

I have never seen it that I know of! It looks like a new twist on age old gunite or basically spray on stucco one coat! At this point the downside I can see would be from impact damage and then repairs to it. I'm sure it is fairly tough but I bet it will chip.

Another questions I would have is how does it react to water cascading down over it. Does it become soft or discolor? How bad does it stain and absorb dirt, grime, etc...

[Aaron Miller]

Another questions I would have is how does it react to water cascading down over it. Does it become soft or discolor? How bad does it stain and absorb dirt, grime, etc...

I'd like to know these things as well.

[BARRY ADAIR]

inspected a few
here's another over in GP, TX i think Decopierre USA : Home (http://www.decopierre.net/)
exterior finish was washing off, crumbling off or delaminated
all was torn off and replaced with other exterior siding/veneer

may work better inside???

[Aaron Miller]

inspected a few
here's another over in GP, TX i think Decopierre USA : Home (http://www.decopierre.net/)
exterior finish was washing off, crumbling off or delaminated
all was torn off and replaced with other exterior siding/veneer

may work better inside???

There are several different grades depending on what application you have. One for interior, on for exterior, one for high-duty exterior.

[Aaron Miller]

After more research I find that this material does not have an ASTM listing and is not in the annals of the IRC-ES. No pedigree, as they say. I have found these things:

[Garry Blankenship]

I was totally perplexed as to how a sprayed on texture could be made to look like true masonary work. Watched one of their videos to learn the mortar lines are hand carved in after the spraying and a level of set has occured. That is a skill that the home owner likely could not reproduce w/o some serious practice. This stuff reminds me of shot-crete. Watched a concrete wall made on a school job by spraying it in place. After forming the back side and setting the re-bar they used some pre-strung piano wires to set the requisite depth and then kept spraying on the concrete, ( shot-crete ), until that depth was reached. Not sure why it was done that way, as the standard form and pour seemed easier. You need an NFL offensive lineman on the end of that shot-crete hose.

[Aaron Miller]

I was totally perplexed as to how a sprayed on texture could be made to look like true masonary work. Watched one of their videos to learn the mortar lines are hand carved in after the spraying and a level of set has occured. That is a skill that the home owner likely could not reproduce w/o some serious practice. This stuff reminds me of shot-crete. Watched a concrete wall made on a school job by spraying it in place. After forming the back side and setting the re-bar they used some pre-strung piano wires to set the requisite depth and then kept spraying on the concrete, ( shot-crete ), until that depth was reached. Not sure why it was done that way, as the standard form and pour seemed easier. You need an NFL offensive lineman on the end of that shot-crete hose.

This can be applied with a compressor and hopper gun. Exterior grade requires WRB and lath just like Portland cement stucco (or, on mineral-based materials, without the lath), but the interior grade can be applied directly to primed drywall. It is very hard and durable when fully cured after about 24 hours.

[Garry Sorrells]

In Baltimore MD we have many homes that had a cement applied and formed to look like stone the process was called Form Stone. For the most part it has held up over the decades. Though it was typically applied to brick. The sprayed on product that you are looking at is similar, but I have not seen any in actual application.