[papercreters] Mortar and OSB?

What makes you think that mortar adheres to OSB, especially after you paint it?

Neal

 

----- Original Message -----
From: "countryatheartok" <criswells.ok@sbcglobal.net>
To: papercreters@yahoogroups.com
Sent: Wednesday, August 11, 2010 8:02:41 AM
Subject: [papercreters] Re: Just posted some new photos of new walls

 

Thanks, I am hoping I soon will be able to show how to install papercrete stones to be used as siding over the papercrete walls and over OSB. I contacted Kelly Hart at

www.greenhomebuilding.com and asked his advise as to whether or not he thought I should apply tar paper over the OSB before I installed chickwire or wire mesh and then apply a thin layer of morter and then after the thin layer is dry apply morter to back of my stones and stick them in place. He said he thought applying the tar paper would protect the OSB from moisture that might through the papercrete stones. I think I am going to not take the advise and just apply a good exterior paint to the OSB, which by the way has been exposed to the weather for at least 2 years not paint and with no real damage. In my mind if you apply tar paper over OSB and then chickenwire or wire mesh and then your thin layer of morter you are creating a shell that is only supported by the nails or screws that hold the chickenwire or wire mesh to the OSB, the tar paper would prevent the morter from adhereing to the OSB, which in my mind is what I want it to do, I don't want just the nail or screws alone to hold the morter and stones, I would feel more secure knowing that the morter and chickwire or wire mesh and screws as well as the OSB are all holding the morter and stones. 

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