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Forums > Green Building Technologies > Insulating Concrete Forms (ICFs) > Subject: 2.5# or 3.4# metal lath for traditional stucco

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benoUser is Offline
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Posts:44
08/14/2009 10:22 PM  

Hi all,

I wonder which metal lath should I use with 3 coat cement stucco: 2.5 or 3.4 lbs/sq.yd over Nudura?

On the web I saw the recommendation to use 3.4# metal lath but at the local store they told me to use 2.5#. What is the right answer?

Many thanks,
Beno
rykertestUser is Offline
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Posts:132
08/15/2009 8:14 AM  
Have you ever considered this? It works GREAT with icf.

http://en.wikipedia.org/wiki/Exterior_Insulation_Finishing_System

But sorry I can't answer your question.
astroUser is Offline
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Posts:16
08/15/2009 2:04 PM  
i would use the 3.4lb the 2.5 is for tile floor mudjobs, or so i have been told
ICFARXXUser is Offline
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Posts:40
08/16/2009 11:51 AM  
Make sure it is the dimple lath
ICFconstructionUser is Offline
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Posts:638
08/16/2009 12:34 PM  
Dimple lath is the same as self-furring, right?
Brad Kvanbek - ICFconstruction.net
benoUser is Offline
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Posts:44
08/17/2009 8:33 AM  
Dimpled raised lath:
http://www.dietrichindustries.com/products/pdf/213_DMF07.PDF

V-Groove raises lath:
http://www.dietrichindustries.com/products/pdf/214_DMF07.PDF

Which one to choose?

Thanks,
Beno
benoUser is Offline
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Posts:44
08/17/2009 8:35 AM  
Also, should I choose Paper-Backed Offset Option? I thought to install to layers of felt under the lath.
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Posts:40
08/17/2009 10:28 PM  
You should put paper behind it. Call Dryvit they have a paper that meets the building codes. Tar paper does not meet code in some areas.

It is the same as self furring
Jerry CoombsUser is Offline
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Posts:33
08/18/2009 12:04 PM  
Here is some good background information. Real "Stucco" is defined in ASTM C 1328. It defines the properties etc. of the cement. ASTM C 1063 covers the installation of lathing and furring. That one should give you some good pointers. Then ASTM C 926 covers the application.
Jerry D. Coombs, P.E.
Coombs Engineering services
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Forums > Green Building Technologies > Insulating Concrete Forms (ICFs) > 2.5# or 3.4# metal lath for traditional stucco


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