Code Summary: Water Resistive
| ONE COAT STUCCO |
Wood Sheathing
(Plywood, OSB) |
Other Sheathings |
| Layer of EPS or XPS |
No EPS or XPS |
| 1 layer Grade D paper with minimum 60 minute water resistance |
2 layers Grade D paper with minimum 10 minute water resistance |
1 layer Grade D paper with minimum 10 minute water resistance |
Reference: ICC-ES Acceptance Criteria 11
| THREE COAT STUCCO |
Building Code
Reference |
Wood Sheathing
(Plywood, OSB) |
Other Sheathings |
| |
2 layers Grade D paper with minimum
10 minute water resistance |
1 layer ASTM D226 Type I felt |
| IBC 2006 |
Section 2510.6 |
Section 1404.2 |
| IRC 2006 |
Section R 703.6 |
Section R 703.2 |
Alternatives to the code-prescribed weather barriers can be found in Evaluation Reports issued by organizations such as the ICC Evaluation Service. Alternatives may include the use of asphalt paper in place of felt, and synthetics, such as Tyvek® and Typar®.
Referenced Standard Summary
MODEL BUILDING CODE STANDARDS
FOR PORTLAND CEMENT PLASTER AND RELATED MATERIALS |
| Code |
Portland Cement
Plaster |
Aggregate |
Lath |
Lath
Installation |
International Residential Code
2006 |
ASTM C 926 |
ASTM
C 897 |
ASTM
C 847
C 933
C 1032 |
ASTM
C 1063 |
International Building Code
2006 |
ASTM
C 926 |
ASTM
C 897 |
ASTM
C 847
C 933
C 1032 |
ASTM
C 1063 |
Uniform Building Code
1997 |
UBC
Section 2508 |
ASTM
C 144
C 897 |
ASTM
C 897 |
UBC
Section 2506.5 |
| Referenced Standards IBC and IRC 2006 |
| ASTM | |
| C 847-95 |
| Specification for Metal Lath |
| C 847-00 |
| Specification for Aggregate for Job-Mixed Portland Cement-Based Plasters |
| C 926-98a |
| Specification for Application of Portland Cement-Based Plaster |
| C 933-04 |
| Specification for Welded Wire Lath |
| C 1032-04 |
| Specification for Woven Wire Plaster Base |
| C 1063-03 |
| Specification for Installation of Lathing and Furring to Receive Interior and Exterior Portland Cement-Based Plaster |
© 1997-2009 ParexLahabra, Inc. All rights reserved.
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