1、*USACE / NAVFAC / AFCESA / NASA UFGS-09 24 23 (May 2009)-Preparing Activity: USACE SupersedingUFGS-09 24 23 (April 2006)UNIFIED FACILITIES GUIDE SPECIFICATIONSReferences are in agreement with UMRL dated April 2009*SECTION TABLE OF CONTENTSDIVISION 09 - FINISHESSECTION 09 24 23STUCCO05/09PART 1 GENER
2、AL1.1 REFERENCES1.2 SUBMITTALS1.3 QUALITY ASSURANCE1.4 DELIVERY, STORAGE, AND HANDLING1.5 ENVIRONMENTAL REQUIREMENTSPART 2 PRODUCTS2.1 PORTLAND CEMENT2.2 COLORED STUCCO FINISH COAT2.3 LIME2.4 SAND2.5 ACCESSORIES2.6 STEEL FRAMING2.7 METAL LATH2.8 WATERPART 3 EXECUTION3.1 FRAMING3.2 CONTROL JOINTS3.3
3、LATH3.3.1 Steel and Wood Supports3.3.2 On Concrete and Masonry3.3.3 Over Metal Lintels and Flashings3.3.4 Special Shapes, Profiles, and Contours3.4 FURRING3.5 PREPARATION OF SURFACES3.6 PROPORTIONS AND MIXING3.7 STUCCO APPLICATION3.7.1 Workmanship3.7.2 Scratch Coat3.7.3 Brown Coat3.7.4 Finish CoatSE
4、CTION 09 24 23 Page 1Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3.7.5 Surface Tolerance3.8 CURING AND PROTECTION3.9 PATCHING AND POINTING- End of Section Table of Contents -SECTION 09 24 23 Page 2Provided by IHSNot for ResaleNo reproduction or n
5、etworking permitted without license from IHS-,-,-*USACE / NAVFAC / AFCESA / NASA UFGS-09 24 23 (May 2009)-Preparing Activity: USACE SupersedingUFGS-09 24 23 (April 2006)UNIFIED FACILITIES GUIDE SPECIFICATIONSReferences are in agreement with UMRL dated April 2009*SECTION 09 24 23STUCCO05/09*NOTE: Thi
6、s section covers requirements for stucco, including associated framing and lathing.Edit this guide specification for project specific requirements by adding, deleting, or revising text. For bracketed items, choose applicable items(s) or insert appropriate information.Remove information and requireme
7、nts not required in respective project, whether or not brackets are present.Comments and suggestions on this guide specification are welcome and should be directed to the technical proponent of the specification. A listing of technical proponents, including their organization designation and telepho
8、ne number, is on the Internet.Recommended changes to a UFGS should be submitted as a Criteria Change Request (CCR).*PART 1 GENERAL*NOTE: At paragraph SUBMITTALS, SD-04 Samples; for large projects, select the wording to require a jobsite sample panel.*1.1 REFERENCES*NOTE: This paragraph is used to li
9、st the publications cited in the text of the guide specification. The publications are referred to in the text by basic designation only and listed in this paragraph by organization, designation, date, and title.SECTION 09 24 23 Page 3Provided by IHSNot for ResaleNo reproduction or networking permit
10、ted without license from IHS-,-,-Use the Reference Wizards Check Reference feature when you add a RID outside of the Sections Reference Article to automatically place the reference in the Reference Article. Also use the Reference Wizards Check Reference feature to update the issue dates.References n
11、ot used in the text will automatically be deleted from this section of the project specification when you choose to reconcile references in the publish print process.*The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the
12、 text by the basic designation only.ASTM INTERNATIONAL (ASTM)ASTM A 185/A 185M (2007) Standard Specification for Steel Welded Wire Reinforcement, Plain, for ConcreteASTM C 1032 (2006) Standard Specification for Woven Wire Plaster BaseASTM C 1063 (2008) Standard Practice for Installation of Lathing a
13、nd Furring to Receive Interior and Exterior Portland Cement-Based PlasterASTM C 150 (2007) Standard Specification for Portland CementASTM C 206 (2003) Standard Specification for Finishing Hydrated LimeASTM C 841 (2003e1; R 2008) Installation of Interior Lathing and FurringASTM C 847 (2006) Standard
14、Specification for Metal LathASTM C 897 (2005) Aggregate for Job-Mixed Portland Cement-Based PlastersASTM C 926 (2006) Application of Portland Cement-Based PlasterASTM C 933 (2007b) Welded Wire LathASTM D 1784 (2008) Standard Specification for Rigid Poly(Vinyl Chloride) (PVC) Compounds and Chlorinate
15、d Poly(Vinyl Chloride) (CPVC) Compounds1.2 SUBMITTALS*NOTE: Review submittal description (SD) definitions SECTION 09 24 23 Page 4Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-in Section 01 33 00 SUBMITTAL PROCEDURES and edit the following list to r
16、eflect only the submittals required for the project. Submittals should be kept to the minimum required for adequate quality control.A “G” following a submittal item indicates that the submittal requires Government approval. Some submittals are already marked with a “G”. Only delete an existing “G” i
17、f the submittal item is not complex and can be reviewed through the Contractors Quality Control system. Only add a “G” if the submittal is sufficiently important or complex in context of the project.For submittals requiring Government approval on Army projects, a code of up to three characters withi
18、n the submittal tags may be used following the “G“ designation to indicate the approving authority. Codes for Army projects using the Resident Management System (RMS) are: “AE“ for Architect-Engineer; “DO“ for District Office (Engineering Division or other organization in the District Office); “AO“
19、for Area Office; “RO“ for Resident Office; and “PO“ for Project Office. Codes following the “G“ typically are not used for Navy, Air Force, and NASA projects.Choose the first bracketed item for Navy, Air Force and NASA projects, or choose the second bracketed item for Army projects.*Government appro
20、val is required for submittals with a “G“ designation; submittals not having a “G“ designation are for Contractor Quality Control approval. information only. When used, a designation following the “G“ designation identifies the office that will review the submittal for the Government. The following
21、shall be submitted in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:SD-02 Shop DrawingsLathDrawings showing details of construction for reinforcement, furring, and grounds; including manufacturers installation instructions for stucco materials, and locations where each mix and coating thickn
22、ess will be used.SD-03 Product DataMaterialsDetailed description of the proposed job-mix proportions for base and finish coats; including identification of thickness of coats.SD-04 SamplesColored Stucco Finish CoatSECTION 09 24 23 Page 5Provided by IHSNot for ResaleNo reproduction or networking perm
23、itted without license from IHS-,-,-Samples including both a fabricated portion of unit of work and color samples.Sample PanelSample panel, as specified.1.3 QUALITY ASSURANCEsubmit a SAMPLE PANEL as follows: One 300 mm 12 inch square stucco panel showing finish texture and color and exposed reinforce
24、ment at the edges, one300 mm 12 inch square of reinforcement, and a 300 mm 12 inch length of each accessory proposed, prior to proceeding with stucco work. A sample panel of stucco, constructed at the jobsite, and located as directed, to demonstrate installation procedures, texture and color, prior
25、to proceeding with any stucco work; panel size shall be a minimum of 1200 mm wide x 2400 mm 4 feet wide x 8 feet high; containing each type accessory proposed for use and constructed in the vertical position. Sample panel shall have exposed reinforcement at the edges. Each phase of installation such
26、 as framing, scratch coat, brown coat, finish coat and curing procedures shall be demonstrated in the construction of the panel. Submit one 300 mm 12 inchsquare of reinforcement and one 300 mm 12 inch length of each accessory proposed for use, prior to constructing the sample panel.1.4 DELIVERY, STO
27、RAGE, AND HANDLINGDeliver packaged materials to the site in the original packages and containers with labels intact and seals unbroken. Keep cementitious materials dry and stored off the ground, under cover and away from damp surfaces until ready to be used. Aggregate shall be covered to prevent the
28、 absorption or loss of moisture.1.5 ENVIRONMENTAL REQUIREMENTSDo not apply stucco when the ambient temperature is 4 degrees C 40 degrees For lower, or when a drop in temperature below 4 degrees C 40 degrees F is expected within 48 hours after application.PART 2 PRODUCTS2.1 PORTLAND CEMENT*NOTE: Wher
29、e colored or white stucco finish is required, the gray portland cement will be omitted. Select type of cement to provide the required characteristics. Type I cement should normally be specified when stucco requires no special characteristics. Type II cement should be specified when stucco will be ex
30、posed to moderate sulphate (alkali) action. Type III cement should be specified when high early strength is needed.*Portland cement shall conform to ASTM C 150, gray portland cement Type I II III. white portland cement, Type I II III.SECTION 09 24 23 Page 6Provided by IHSNot for ResaleNo reproductio
31、n or networking permitted without license from IHS-,-,-2.2 COLORED STUCCO FINISH COATColored stucco finish coat shall be a mill mixed product using white portland cement and requiring only the addition of and mixing with water for application. Color shall be in accordance with Section 09 06 90COLOR
32、SCHEDULE _.2.3 LIMELime shall conform to ASTM C 206, Type S.2.4 SANDSand aggregate for job-mixed base coat and job-mixed finish coat stucco shall conform to ASTM C 897.2.5 ACCESSORIES*NOTE: Custom aluminum radiuses, and custom miters and intersections with welded corners or taped backs are available
33、. Aluminum shapes with clear anodized, color anodized, or baked enamel finishes may be used where required for aesthetic purposes. Aluminum shapes are more costly than standard steel or PVC shapes.*Accessories shall be roll formed galvanized steel, or rigid polyvinyl chloride (PVC) _, except that co
34、rnerite and striplath shall be formed from steel sheets with manufacturers standard galvanized coating. Vinyl members shall be in accordance with ASTM D 1784. Welded wire corner reinforcements shall be zinc coated, galvanized 1.4 mm 17 gauge steel wire conforming to ASTM A 185/A 185M. Furring shall
35、include hangers, bolts, inserts, clips, fastenings, and attachments of number, size, and design to develop the full strength of the members.2.6 STEEL FRAMING*NOTE: Stud sizes and framing dimensions and details will be indicated on the drawings. Framing will be designed for a maximum deflection of L/
36、240 studs only assembly or a maximum deflection of L/360 for completed assembly, based on wind load design requirements in UFC 3-310-01.*Steel framing shall be as shown and shall be manufacturers standard products with shop applied protective coating.2.7 METAL LATHMetal lath shall conform to ASTM C
37、847, types and weights in accordance with the various spacing shown in ASTM C 841. Lath for vertical application on steel and wood framing supports shall be expanded metal or welded or woven wire and shall have paper backing with a minimum vapor permeance of 287.2 ng per Pa per second per square met
38、er 5 perms. Woven wire lath shall be a maximum 38 x 38 mm 1-1/2 x 1-1/2 inch mesh wire of not SECTION 09 24 23 Page 7Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-less than 1.37 mm 0.0540 inch nominal diameter and shall conform to ASTM C 1032. Weld
39、ed wire lath shall conform to ASTM C 933, with openings not to exceed 50 x 50 mm 2 x 2 inches. Expanded metal or wire lath shall be fabricated in a manner to provide not less than 6 mm 1/4 inch keying between wire and paper backing and keying shall be obtained by a uniform series of slots in a perfo
40、rated face paper woven between the wires.2.8 WATERProvide clean, fresh, potable water, free from amounts of oils, acids, alkalis and organic matter that would be injurious to the stucco.PART 3 EXECUTION3.1 FRAMINGFraming shall be installed as indicated.3.2 CONTROL JOINTS*NOTE: Control joints will be
41、 shown on the drawings, dividing the stucco into areas of not more than 13 square meters (144 square feet) with no dimension between control joints greater than 5.4 meters (18 feet). The length to width ratio of the area bounded by the control joints will not exceed 25 to 63 mm (1 to 2-1/2 inches).*
42、Control joints shall be located as indicated on the drawings. Prefabricated control joint members shall be installed prior to the application of the stucco. Control joints shall be cleared of all stucco within the control area after stucco application and prior to final stucco set.3.3 LATH*NOTE: Dra
43、wings will clearly indicate where metal lath is required. Metal lath will be used over metal supports and wood supports. Metal reinforcement with water-resistant paper is recommended in all steel frame construction and suspended ceilings. The use of metal reinforcement over concrete and masonry will be in accordance with local practice based upon satisfactory experience. Paper backed lath may be applied to interior concrete and masonry when adequate and uniform bond cannot be
