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

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.

i would use the 3.4lb the 2.5 is for tile floor mudjobs, or so i have been told

Make sure it is the dimple lath

Dimple lath is the same as self-furring, right?

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

Also, should I choose Paper-Backed Offset Option? I thought to install to layers of felt under the lath.

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

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.