#Veneer plaster casing beads install#
#Veneer plaster casing beads code#

See, stucco *is not water proof*, I would not even want to call it 'water-resistant' as water goes through stucco, the water goes through the stucco, goes through the bond breaker paper, then weeps down the back side of the bond breaker paper between it and the house wrap on the wall behind the bond breaker paper. By the way, the MINIMUM thickness for standard 3-coat stucco on frame is 7/8', not 3/4'. Then the brown coat (the 2nd coat), then the finish coat (the 3rd coat). The stucco is scratched in and pressed against the paper described in this paragraph, and this paper simply serves as a bond breaker so the stucco does not bond to the house wrap which was installed first. The stucco is 'scratched' (forced into the openings in the expanded metal lat) and that stucco which goes through the openings create 'globs' or 'keys' behind the metal lath are hold the stucco to the metal lath. The paper on the paper backed metal lath (or the 15# or 30# described immediately above) serve as the bond breaker between the stucco and the drainage plane.

#Veneer plaster casing beads install#

and only then, do you install the 15# or 30# felt and metal lath, or paper backed metal lath. The drainage plane could be house wrap, Tyvek makes a special house wrap for use behind stucco, it has 'dimples' (for lack of a better term) in it and the rows of dimples are intended to be installed vertically (when the Tyvek is installed horizontally around the house), and those dimples create a drainage plane.

That drainage plane could be 30# felt (although that is not necessarily the best material to use as a drainage plane as it soaks up moisture). Stucco on wood frame needs a drainage plane. I-M-P-O-R-T-A-N-T step: namely the drainage plane. It isn't supposed to be a moisture weep system.So you are the one responsible for all those rotted out walls behind stucco lath installed without a drainage plane? I always wondered who the culprit was. When the stucco is applied over the lath the scratch coat goes into the holes of the lath. It is a hard coat system that could not weep moisture. Additionally, vinyl has a lower cost than equivalent products manufactured from zinc or aluminum, for use when the highest levels of corrosion resistance are required.Stucco is applied using black paper, lath, scratch coat, basecoat and than finish. Vinyl has low electrical and thermal conductivity and is considered an excellent insulator, as well as being self-extinguishing and offering better resistance to burning than many other common building materials. No priming is required to add paint to vinyl products due to its paint adhesion properties. Vinyl is impervious to corrosion when coated in veneer plaster, wet joint compounds, or when placed in contact with steel or aluminum frames and resists impacts, dents, and damage during construction.

#Veneer plaster casing beads code#

Larger, triangular perforations allow more stucco mix to flow through and adhere to the substrate, improving embedment with and lath and trims.Ĭasing beads should not be used in lieu of Foundation Weep Screeds at the base of the wall, as they do not meet building Code requirements. The unique E-Flange shape also allows for quick and easy tying of lath and other accessories. E-Flange allows for more stucco mix to flow through the flange, providing a more thorough and consistent embedment.