Bricks, Masonry, Asphalt and Concrete - Mortar for low temp & high humidity

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Hudzo
04-03-05, 10:42 AM
I'm building a wine cellar with actively regulated temperature and humidity (55° F and 70% rel humidity). On the inside-facing walls, I'd like to put a brick veneer for thermal mass and aesthetics. My question is, is there a particular mortar that is well-suited to this unique(?) situation (i.e. no exposure to elements, low temp & high humidity)?

Thanks!


Concretemasonry
04-03-05, 09:02 PM
This is not exposure for mortar considering the uniform termeratures you will be maintaining. The moisture is not a problem, since mortar needs moisture to cure properly. Your mortar will last longer than your home.

Since you have little or no load except for the weight of the 8 to 10 foot high wall, strength is not an issue. Follow the golden rule of using as weak a mortar as possible. I would us a Type S or N. Just tell the mason what type you want. I prefer a portland and lime combination, but a masonry cement mortar is OK. Both can be purchased pre-blended in most larger areas.

You have properly recognized the benefits of the mass, which go for both temperature and humidity.

Dick

Hudzo
04-03-05, 09:12 PM
Thanks, Dick!

One follow-up question: why didn't you recommend type O? I actually thought that was the answer I'd get when I posted the question. You hit it on the head when you said there'd be no strenght requirements (other than the weight of the wall itself), but isn't that what type O is for: interior and/or non-load-bearing projects?

Thanks again!

-Loren