23-cchs-addendum 02-250728-complete.pdf

A R C H I T E C T ’ S A D D E N D U M

Addendum Number: 02

Date: Monday, July 28, 2025

RE: St. Louis Public Schools

Central VPA and Collegiate High School Secure Entries and Renovations

Prepared By: Jim Riddle AIA Cordogan Clark Project No.: 234403

Cordogan Clark

To: Prospective Bidders

Subject: Addendum No. 02 to the Construction Documents for the Central VPA and Collegiate High

School Secure Entries and Renovations

This Addendum forms a part of the Construction Documents and modifies the original Construction

Documents, dated 6/27/2025. Acknowledge receipt of this Addendum in the space provided on the

Bid Form. Failure to do so may subject Bidder to disqualification.

THE FOLLOWING ITEMS ARE TO BE INCLUDED IN THE PROPOSAL.

Answers to questions in Bonfire :

1. Question 1 : What is the estimated value of the project?

a. Answer : It is in the range of $15 to $20 Million.

2. Question 2 : Will a pre-bid sign in sheet be issued via addendum?

a. Answer : It was issued in Addendum 1

3. Question 3 : Where can I send a substitution request attachment for Johns Manville Commercial

Roofing Products?

a. Johns Manville is an acceptable manufacturer – but the warranty of the roof system being repaired/tied into on the North side must be maintained.

4. Question 4 : After reviewing the floor plans for the STL Public Schools Central VPA project, I have some questions regarding how many lockers are needed. There are gym lockers, dance lockers, and personal storage lockers listed specifically but I also see lockers in various parts of the plans labeled "CSMB." Do you know if those are part of the current scope or if those are already existing and staying in place?

a. You should assume that they are part of the current scope.

5. Question 5 : Is there any work that is going to be required to be done outside of school hours or outside of the regular school year?

a. Answer : Per the Bid Form, the building demolition work is to be completed off-shift

(after hours) and the parking lot work is to be completed during the summer months.

6. Question 6 : Does SLPS intend to have any summer camps in the school, if yes when approximately?

a. Answer : There are no current plans for summer camps in the building. SLPS has not selected their summer sites yet for the 25-26, 26-27, and 27-28 school years yet.

7. Question 7 : Can you please confirm who does the HVAC controls for the school building?

a. Answer : SLPS Facilities HVAC Team handles controls internally.

8. Question 8 : Section 31 4680 - Ground Improvement and Section 31 6223 - Composite Piles were added to the specification. Where on the plans/project are these 2 items to be installed?

a. Answer : Neither is used on this project.

9. Question 9 : Johns Manville Roofing substitution.

a. Johns Manville Roofing is an acceptable substitution.

10. Question 10 : The specification seems to jump from Section 04 2000 Unit Masonry to Section 07

4243 Metal Composite Material Wall Panels, missing 20 specification sections.

a. The sections in the Table of Contents are being issued with this addendum.

11. Question 11 : page 012200-2 notes Unit Price 1: Add/Remove Electrical Receptacle. The bid form does not have a line item for this.

a. Answer : Please place the unit price under “ other” on the Bid Form.

12. Question 12 : Is AISC certification/membership required for both the metals fabricator and installer?

a. Answer : Yes. This is noted in attached specification section 05 12 00.

13. Question 13 : Is AWI certification/membership required for both the cabinet and countertop fabricator and installer?

a. Answer : In specification 06 04 23 Plastic Laminate Faced Cabinets, issued in this addendum, the cabinet manufacturer is not required to be certified, but is required to follow the AWI standards as a minimum.

14. Question 14 : Cannot find 072160 Structural Thermal Break on the plan, Fluid-Applied Thermal

Break is on the plan.

a. Answer : Structural thermal breaks are not used on this project, fluid applied thermal breaks are.

15. Question 15 : Where is the ventilated nailable insulated panels in the specifications located on the plan?

a. Answer : It is not used on the plans.

16. Question 16 : The specification jumps from ALUMINUM-FRAMED ENTRANCES AND

STOREFRONTS 084113 to METAL LOCKERS, BENCHES, AND HOOKS 105113, missing the specification sections in between.

a. Answer : The sections in the Table of Contents are being issued with this addendum.

17. Question 17 : The specification table of contents and the specification sections do not match.

Some are out of place or missing in the table of contents or in the specification.

a. Answer : We are attaching the missing specification sections to this Addendum.

General Clarifications :

1. None at this time.

Clarifications to the Project Manual :

1. Add Specification Section 047200 CAST STONE MASONRY to the Project Manual.

2. Add Specification Section 048500 STONE CLADDING PANELS to the Project Manual.

3. Add Specification Section 051200 STRUCTURAL STEEL FRAMING to the Project Manual.

4. Add Specification Section 052100 STEEL JOIST FRAMING to the Project Manual.

5. Add Specification Section 053100 STEEL DECKING to the Project Manual.

6. Add Specification Section 054000 COLD-FORMED METAL FRAMING to the Project

Manual.

7. Add Specification Section 055000 METAL FABRICATIONS to the Project Manual.

8. Add Specification Section 055113 METAL PAN STAIRS to the Project Manual.

9. Add Specification Section 055213 PIPE AND TUBE RAILINGS to the Project Manual.

10. Add Specification Section 055313 BAR GRATINGS to the Project Manual.

11. Add Specification Section 060423 PLASTIC LAMINATE FACED ARCHITECTURAL CABINETS to the Project Manual.

12. Add Specification Section 061000 ROUGH CARPENTRY to the Project Manual.

13. Add Specification Section 061600 SHEATHING to the Project Manual.

14. Add Specification Section 066400 PLASTIC PANELING to the Project Manual.

15. Add Specification Section 071416 COLD FLUID-APPLIED WATERPROOFING to the Project

Manual.

16. Add Specification Section 071900 WATER REPELLENT to the Project Manual.

17. Add Specification Section 072100 THERMAL INSULATION to the Project Manual.

18. Add Specification Section 072160 STRUCTURAL THERMAL BREAK to the Project Manual.

19. Add Specification Section 072200 VENTILATED NAILABLE INSULATED PANELS to the

Project Manual.

20. Add Specification Section 072726 FLUID-APPLIED MEMBRANE AIR BARRIERS to the

Project Manual.

21. Add Specification Section 074243 METAL COMPOSITE MATERIAL WALL PANELS to the

Project Manual.

22. Add Specification Section 087100 DOOR HARDWARE to the Project Manual.

DOOR HARDWARE INDEX

23. Add Specification Section 088000 GLAZING to the Project Manual.

24. Add Specification Section 088300 MIRRORS to the Project Manual.

25. Add Specification Section 092216.23 GYPSUM BOARD SHAFT WALL ASSEMBLIES to the

Project Manual.

26. Add Specification Section 092216 NON-STRUCTURAL METAL FRAMING to the Project

Manual.

27. Add Specification Section 092900 GYPSUM BOARD to the Project Manual.

28. Add Specification Section 093000 TILE to the Project Manual.

29. Add Specification Section 095123 ACOUSTICAL PANEL CEILINGS to the Project Manual.

30. Add Specification Section 095423 SPECIALTY CEILINGS to the Project Manual.

31. Add Specification Section 096263 STAINLESS STEEL WALL BASE to the Project Manual.

32. Add Specification Section 096440 DANCE STUDIO FLOORING to the Project Manual.

33. Add Specification Section 096513 RESILIENT BASE AND ACCESSORIES to the Project

Manual.

34. Add Specification Section 096519 RESILIENT TILE FLOORING to the Project Manual.

35. Add Specification Section 096613.1 PATCHING PORTLAND CEMENT TERRAZZO FLOORING to the Project Manual.

36. Add Specification Section 096623 RESINOUS MATRIX TERRAZZO FLOORING to the Project

Manual.

37. Add Specification Section 096723 RESINOUS FLOORING to the Project Manual.

38. Add Specification Section 096800 CARPETING to the Project Manual.

39. Add Specification Section 097200 COMMERCIAL WALL COVERING to the Project Manual.

40. Add Specification Section 098300 ACOUSTIC FINISHES to the Project Manual.

41. Add Specification Section 098400 DIRECT-ATTACHED ACOUSTICAL CEILING PANELS to the

Project Manual.

42. Add Specification Section 099000 INTERIOR PAINTS & COATINGS to the Project Manual.

43. Add Specification Section 099113 EXTERIOR PAINTING to the Project Manual.

44. Add Specification Section 099300 STAINING AND TRANSPARENT FINISHING to the Project

Manual.

45. Add Specification Section 101100 VISUAL DISPLAY SURFACES to the Project Manual.

46. Add Specification Section 101200 DISPLAY CASES to the Project Manual.

47. Add Specification Section 101419 DIMENSIONAL LETTER SIGNAGE to the Project Manual.

48. Add Specification Section 102113 TOILET COMPARTMENTS to the Project Manual.

49. Add Specification Section 102800 TOILET, BATH, AND LAUNDRY ACCESSORIES to the

Project Manual.

50. Add Specification Section 104413 FIRE EXTINGUISHER CABINETS to the Project Manual.

51. Add Specification Section 104416 FIRE EXTINGUISHERS to the Project Manual.

Clarifications to the Drawings:

Architectural

1. None at this time

Structural

1. None at this time.

Plumbing

1. None at this time

Electrical

1. Remove drawing EP1.00 from the drawing set, replace it with new drawing EP1.00 with a delta 1 dated 7/24/25.

2. Remove drawing E6.00 from the drawing set, replace it with new drawing E6.00 with a delta 1 dated 7/24/25.

Attachments:

1. Specification Section 047200 CAST STONE MASONRY

2. Specification Section 048500 STONE CLADDING PANELS

3. Specification Section 051200 STRUCTURAL STEEL FRAMING

4. Specification Section 052100 STEEL JOIST FRAMING

5. Specification Section 053100 STEEL DECKING

6. Specification Section 054000 COLD-FORMED METAL FRAMING

7. Specification Section 055000 METAL FABRICATIONS

8. Specification Section 055113 METAL PAN STAIRS

9. Specification Section 055213 PIPE AND TUBE RAILINGS

10. Specification Section 055313 BAR GRATINGS

11. Specification Section 060423 PLASTIC LAMINATE FACED ARCHITECTURAL CABINETS

12. Specification Section 061000 ROUGH CARPENTRY

13. Specification Section 061600 SHEATHING

14. Specification Section 066400 PLASTIC PANELING

15. Specification Section 071416 COLD FLUID-APPLIED WATERPROOFING

16. Specification Section 071900 WATER REPELLENT

17. Specification Section 072100 THERMAL INSULATION

18. Specification Section 072160 STRUCTURAL THERMAL BREAK

19. Specification Section 072200 VENTILATED NAILABLE INSULATED PANELS

20. Specification Section 072726 FLUID-APPLIED MEMBRANE AIR BARRIERS

21. Specification Section 074243 METAL COMPOSITE MATERIAL WALL PANELS

22. Specification Section 087100 DOOR HARDWARE

DOOR HARDWARE INDEX

23. Specification Section 088000 GLAZING

24. Specification Section 088300 MIRRORS

25. Specification Section 092216.23 GYPSUM BOARD SHAFT WALL ASSEMBLIES

26. Specification Section 092216 NON-STRUCTURAL METAL FRAMING

27. Specification Section 092900 GYPSUM BOARD

28. Specification Section 093000 TILE

29. Specification Section 095123 ACOUSTICAL PANEL CEILINGS

30. Specification Section 095423 SPECIALTY CEILINGS

31. Specification Section 096263 STAINLESS STEEL WALL BASE

32. Specification Section 096440 DANCE STUDIO FLOORING

33. Specification Section 096513 RESILIENT BASE AND ACCESSORIES

34. Specification Section 096519 RESILIENT TILE FLOORING

35. Specification Section 096613.1 PATCHING PORTLAND CEMENT TERRAZZO FLOORING

36. Specification Section 096623 RESINOUS MATRIX TERRAZZO FLOORING

37. Specification Section 096723 RESINOUS FLOORING

38. Specification Section 096800 CARPETING

39. Specification Section 097200 COMMERCIAL WALL COVERING

40. Specification Section 098300 ACOUSTIC FINISHES

41. Specification Section 098400 DIRECT-ATTACHED ACOUSTICAL CEILING PANELS

42. Specification Section 099000 INTERIOR PAINTS & COATINGS

43. Specification Section 099113 EXTERIOR PAINTING

44. Specification Section 099300 STAINING AND TRANSPARENT FINISHING

45. Specification Section 101100 VISUAL DISPLAY SURFACES

46. Specification Section 101200 DISPLAY CASES

47. Specification Section 101419 DIMENSIONAL LETTER SIGNAGE

48. Specification Section 102113 TOILET COMPARTMENTS

49. Specification Section 102800 TOILET, BATH, AND LAUNDRY ACCESSORIES

50. Specification Section 104413 FIRE EXTINGUISHER CABINETS

51. Specification Section 104416 FIRE EXTINGUISHERS

52. Drawing EP1.00

53. Drawing E6.00

End Of Addendum No. 02 jriddle Snapshot

CVPA + CSMB HIGH SCHOOL ADDITIONS / RENOVATIONS #234003

CAST STONE MASONRY 047200 - 1

SECTION 047200 - CAST STONE MASONRY

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section.

1.2 SUMMARY

A. Section Includes but not limited to:

1. Cast Stone Sills.

2. Cast Stone Caps.

3. Cast Stone Trim.

B. Related Sections:

1. Section 042000 "Unit Masonry" for installing cast stone units in unit masonry.

2. Section 044313.13 “Anchored Stone Masonry Veneer” for Limestone Veneers.

3. Section 055000 "Metal Fabrications" for furnishing steel lintels and shelf angles for cast stone masonry.

4. Section 071919 "Silicone Water Repellents" applied to masonry veneers.

5. Section 072100 “Thermal Insulation” for continuous insulation installed behind masonry veneers.

6. Section 072726 “Fluid-Applied Membrane Air Barrier” applied to sheathing in cavity walls.

7. Section 076200 "Sheet Metal Flashing and Trim" for sheet metal flashing and for furnishing manufactured reg lets installed in cast stone masonry joints.

8. Section 079200 “Joint Sealants” for sealing control and expansion joints in cast stone masonry.

1.3 ACTION SUBMITTALS

A. Product Data: For each type of product indicated.

1. For cast stone units, include construction details, material descriptions, dimensions of individual components and profiles, and finishes.

B. Shop Drawings: Show fabrication and installation details for cast stone units. Include dimensions, details of reinforcement and anchorages if any, and indication of finished faces.

1. Include building elevations showing layout of units and locations of joints and anchors.

C. Samples for Verification:

1. For each color and texture of cast stone required, 10 inches (250 mm) square in size.

2. For colored mortar. Make Samples using same sand and mortar ingredients to be used on Project.

CAST STONE MASONRY 047200 - 2

1.4 INFORMATIONAL SUBMITTALS

A. Qualification Data: For manufacturer.

1. Include copies of material test reports for completed projects, indicating compliance of cast stone with ASTM C 1364.

1.5 QUALITY ASSURANCE

A. Manufacturer Qualifications: A qualified manufacturer of cast stone units similar to those indicated for this Project, that has sufficient production capacity to manufacture required units, and is a plant certified by the Cast Stone Institute.

B. Source Limitations for Cast Stone: Obtain cast stone units through single source from single manufacturer.

C. Mockups: Furnish cast stone for installation in mockups specified in Section 042000 "Unit Masonry."

1.6 DELIVERY, STORAGE, AND HANDLING

A. Coordinate delivery of cast stone with unit masonry work to avoid delaying the Work and to minimize the need for on-site storage.

B. Pack, handle, and ship cast stone units in suitable packs or pallets.

1. Lift with wide-belt slings; do not use wire rope or ropes that might cause staining. Move cast stone units, if required, using dollies with wood supports.

2. Store cast stone units on wood skids or pallets with nonstaining, waterproof covers, securely tied. Arrange to distribute weight evenly and to prevent damage to units.

Ventilate under covers to prevent condensation.

1.7 PROJECT CONDITIONS

A. Cold-Weather Requirements: Do not use frozen materials or materials mixed or coated with ice or frost. Do not build on frozen substrates. Comply with cold-weather construction requirements in ACI 530.1/ASCE 6/TMS 602.

1. Cold-Weather Cleaning: Use liquid cleaning methods only when air temperature is 40 deg F (4 deg C) and above and will remain so until cast stone has dried, but no fewer than seven days after completing cleaning.

B. Hot-Weather Requirements: Comply with hot-weather construction requirements in

ACI 530.1/ASCE 6/TMS 602.

CAST STONE MASONRY 047200 - 3

PART 2 - PRODUCTS

2.1 CAST STONE MATERIALS

A. General: Comply with ASTM C 1364 and the following:

B. Portland Cement: ASTM C 150, Type I or Type III, containing not more than 0.60 percent total alkali when tested according to ASTM C 114. Provide natural color or white cement as required to produce cast stone color indicated.

C. Coarse Aggregates: Granite, quartz, or limestone complying with ASTM C 33; gradation and colors as needed to produce required cast stone textures and colors.

D. Fine Aggregates: Natural sand or crushed stone complying with ASTM C 33, gradation and colors as needed to produce required cast stone textures and colors.

E. Color Pigment: ASTM C 979, synthetic mineral-oxide pigments or colored water-reducing admixtures; color stable, free of carbon black, nonfading, and resistant to lime and other alkalis.

F. Reinforcement: Deformed steel bars complying with ASTM A 615/A 615M, Grade 60 (Grade 420). Use galvanized or epoxy-coated reinforcement when covered with less than 1-1/2 inches (38 mm) of cast stone material.

1. Galvanized Coating: ASTM A 767/A 767M.

G. Embedded Anchors and Other Inserts: Fabricated from stainless steel complying with ASTM A 240/A 240M, ASTM A 276, or ASTM A 666, Type 304.

2.2 CAST STONE UNITS

A. Provide cast stone units complying with ASTM C 1364 using either the vibrant dry tamp or wet-cast method.

1. Provide units that are resistant to freezing and thawing as determined by laboratory testing according to ASTM C 666/C 666M, Procedure A, as modified by ASTM C 1364.

B. Fabricate units with sharp arris and accurately reproduced details, with indicated texture on all exposed surfaces unless otherwise indicated.

1. Slope exposed horizontal surfaces 1:12 to drain unless otherwise indicated.

2. Provide raised fillets at backs of sills and at ends indicated to be built into jambs.

3. Provide drips on projecting elements unless otherwise indicated.

C. Fabrication Tolerances:

1. Variation in Cross Section: Do not vary from indicated dimensions by more than 1/8 inch (3 mm).

2. Variation in Length: Do not vary from indicated dimensions by more than 1/360 of the length of unit or 1/8 inch (3 mm), whichever is greater, but in no case by more than 1/4 inch (6 mm).

3. Warp, Bow, and Twist: Not to exceed 1/360 of the length of unit or 1/8 inch (3 mm), whichever is greater.

CAST STONE MASONRY 047200 - 4

4. Location of Grooves, False Joints, Holes, Anchorages, and Similar Features: Do not vary from indicated position by more than 1/8 inch (3 mm) on formed surfaces of units and 3/8 inch (10 mm) on unformed surfaces.

D. Acid etch units after curing to remove cement film from surfaces to be exposed to view.

E. Basis-of-Design Product: Subject to compliance with requirements, “NATURAL” by Caliber Cast Stone or comparable product as approved by Architect prior to bidding.

Caliber Cast Stone #2 Cool Springs Court O’Fallon, MO 63366

(636) 978-4000

2.3 MORTAR MATERIALS

A. Provide mortar materials that comply with Section 042000 "Unit Masonry."

2.4 ACCESSORIES

A. Anchors: Type and size indicated, fabricated from Type 304 stainless steel complying with ASTM A 240/A 240M, ASTM A 276, or ASTM A 666.

B. Dowels: 1/2-inch- (12-mm-) diameter, round bars, fabricated from Type 304 stainless steel complying with ASTM A 240/A 240M, ASTM A 276, or ASTM A 666.

2.5 MORTAR MIXES

A. Comply with requirements in Section 042000 "Unit Masonry" for mortar mixes.

1. For setting mortar, use Type N.

2. For pointing mortar, use Type N.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine substrates and conditions, with Installer present, for compliance with requirements for installation tolerances and other conditions affecting performance of work.

B. Proceed with installation only after unsatisfactory conditions have been corrected.

3.2 SETTING CAST STONE IN MORTAR

A. Install cast stone units to comply with requirements in Section 042000 "Unit Masonry."

B. Set cast stone as indicated on Drawings. Set units accurately in locations indicated with edges and faces aligned according to established relationships and indicated tolerances.

http://www.specagent.com/LookUp/?ulid=34&mf=04&src=wd

CAST STONE MASONRY 047200 - 5

1. Install anchors, supports, fasteners, and other attachments indicated or necessary to secure units in place.

2. Coordinate installation of cast stone with installation of flashing specified in other Sections.

C. Wet joint surfaces thoroughly before applying mortar or setting in mortar.

D. Set units in full bed of mortar with full head joints unless otherwise indicated.

1. Set units with joints 1/4 to 3/8 inch (6 to 10 mm) wide unless otherwise indicated.

2. Build anchors and ties into mortar joints as units are set.

3. Fill dowel holes and anchor slots with mortar.

4. Fill collar joints solid as units are set.

5. Build concealed flashing into mortar joints as units are set.

6. Keep head joints in coping and other units with exposed horizontal surfaces open to receive sealant.

7. Keep joints at shelf angles open to receive sealant.

E. Rake out joints for pointing with mortar to depths of not less than 3/4 inch (19 mm). Rake joints to uniform depths with square bottoms and clean sides. Scrub faces of units to remove excess mortar as joints are raked.

F. Point mortar joints by placing and compacting mortar in layers not greater than 3/8 inch (10 mm). Compact each layer thoroughly and allow it to become thumbprint hard before applying next layer.

G. Tool exposed joints slightly concave when thumbprint hard, using a jointer larger than joint thickness unless otherwise indicated.

H. Provide sealant joints at copings and other horizontal surfaces, at expansion, control, and pressure-relieving joints, and at locations indicated.

1. Keep joints free of mortar and other rigid materials.

2. Build in compressible foam-plastic joint fillers where indicated.

3. Form joint of width indicated, but not less than 3/8 inch (10 mm).

4. Prime cast stone surfaces to receive sealant and install compressible backer rod in joints before applying sealant unless otherwise indicated.

5. Prepare and apply sealant of type and at locations indicated to comply with applicable requirements in Section 079200 "Joint Sealants."

3.3 INSTALLATION TOLERANCES

A. Variation from Plumb: Do not exceed 1/8 inch in 10 feet (3 mm in 3 m), 1/4 inch in 20 feet (6 mm in 6 m), or 1/2 inch (12 mm) maximum.

B. Variation from Level: Do not exceed 1/8 inch in 10 feet (3 mm in 3 m), 1/4 inch in 20 feet (6 mm in 6 m), or 1/2 inch (12 mm) maximum.

C. Variation in Joint Width: Do not vary joint thickness more than 1/8 inch in 36 inches (3 mm in 900 mm) or one-fourth of nominal joint width, whichever is less.

D. Variation in Plane between Adjacent Surfaces (Lipping): Do not vary from flush alignment with adjacent units or adjacent surfaces indicated to be flush with units by more than 1/16 inch (1.5 mm), except where variation is due to warpage of units within tolerances specified.

CAST STONE MASONRY 047200 - 6

3.4 ADJUSTING AND CLEANING

A. Remove and replace stained and otherwise damaged units and units not matching approved Samples. Cast stone may be repaired if methods and results are approved by Architect.

B. Replace units in a manner that results in cast stone matching approved Samples, complying with other requirements, and showing no evidence of replacement.

C. In-Progress Cleaning: Clean cast stone as work progresses.

1. Remove mortar fins and smears before tooling joints.

2. Remove excess sealant immediately, including spills, smears, and spatter.

D. Final Cleaning: After mortar is thoroughly set and cured, clean exposed cast stone as follows:

1. Remove large mortar particles by hand with wooden paddles and nonmetallic scrape hoes or chisels.

2. Test cleaning methods on sample; leave one sample uncleaned for comparison purposes. Obtain Architect's approval of sample cleaning before proceeding with cleaning of cast stone.

3. Protect adjacent surfaces from contact with cleaner by covering them with liquid strippable masking agent or polyethylene film and waterproof masking tape.

4. Wet surfaces with water before applying cleaners; remove cleaners promptly by rinsing thoroughly with clear water.

5. Clean cast stone by bucket-and-brush hand-cleaning method described in BIA Technical Notes 20.

6. Clean cast stone with proprietary acidic cleaner applied according to manufacturer's written instructions.

END OF SECTION 047200

STONE CLADDING PANELS 048500 - 1

SECTION 048500- STONE CLADDING PANELS

PART 1 – GENERAL

1.1 SUMMARY

A. Section Includes: Natural Stone Honeycomb Reinforced Wall Cladding System(s) including installation anchors and accessories.

1. Honeycomb reinforced natural stone wall cladding system(s)

a. Exterior Natural Stone Honeycomb Reinforced Wall Cladding System – 1” nominal total thickness dimension

B. Related Sections:

1. Section 04 40 00 – Stone Assemblies

2. Section 05 40 00 – Cold Formed Metal Framing

3. Section 07 20 00 – Thermal Protection

4. Section 07 62 00 – Sheet Metal Flashing and Trim

5. Section 07 92 00 – Joint Sealant

6. Section 09 23 00 – Gypsum Plastering

1.2 REFERENCES (INDUSTRY STANDARDS)

A. ASTM E 283 Test Method for Rate of Air Leakage

B. ASTM E 331 Test Method for Water Penetration

C. AAMA 501.1 Test Method for Dynamic Water Penetration

D. ASTM E-84 Test Method for Measuring Flame Spread

E. UFC 4-010-01 Unified Facilities Criteria (UFC) - DoD Minimum Antiterrorism Standard for Buildings

STONE CLADDING PANELS 048500 - 2

1.03 SYSTEM DESCRIPTION

A. Panel System Performance Requirements:

1. U.S. Code Approval – Per International Code Council (ICC-ES) Report ESR – 1500

2. Accelerated Aging by Acid Freeze Thaw by Wiss, Janney, Elstner Assoc. Test Method:

Flexural strength loss not to exceed 20% following 100 cycles + 170 (F) to -10(F) while immersed in 4-pH sulfuric acid solution.

3. Large Missile Impact in accordance with Dade County Protocol PA 201-94: Resists large missile impact when fired at 50 ft. per second.

4. Cyclic Wind Pressure Loading in accordance with Dade County Protocol PA 203-94: Re-sist 1342 repetitions of positive – negative 90 psf design wind pressure.

5. ASTM E-84 Flame Spread: 5 maximum smoke development: 5 maximum. Fuel contribut-ed: 0.

6. Toxicity evaluation according to the University of Pittsburgh test method: No more toxic than Douglas fir wood.

7. ASTM D-2015 Potential heat of combustion: 1150 BTU/lb. Maximum.

8. UBC 17-6 Multi –Story fire evaluation: Meet acceptance criteria.

9. Modified ASTM E-108 Fire evaluation: Resist 30 minute fire exposure.

10. Flat wise tension bond capacity: 385 psi following accelerated aging by rapid temperature cycling from -40 degrees (F) to +160 degrees (F).

11. Flat wise tension bond tests following ASTM C-67, section 8 freeze – thaw: 290 psi flat wise tension bond following 100 cycles freeze thaw consisting of 20 hours freezing at 0 degrees (F) and 4 hours thawing in water at 75 degrees (F).

12. ASTM E-72 Transverse load test: Average 215 lbs. per sq. ft. uniform load on 35.5 inch simple span causing 0.49 inch deflection average.

13. Racking shear load tests: No disengagement or major damage following application of 4,000 lb. load and 0.05” to 1.5” deflection on an 8 ft x 8ft specimen.

14. Air Infiltration: The test specimen shall be tested in accordance with ASTM E 283. Air in-filtration rate shall not exceed 0.06 cfm/ft2 at a static air pressure differential of 6.24 psf.

15. Water Resistance: The test specimen shall be tested in accordance with ASTM E 331.

There shall be no leakage at a minimum static air pressure differential of 10 psf as de-fined in AAMA 501.

1.04 SUBMITTALS

A. General: Prepare, review, approve, and submit specified submittals in accordance with “Condi-tions of the Contract” and Division 1. Submittals Sections. Product data, shop drawings, samples, and similar submittals are defined in “Conditions of the Contract.”

B. Quality Assurance/Control Submittals:

STONE CLADDING PANELS 048500 - 3

1. Test Reports: Submit independent laboratory certified test reports showing compliance with specified performance characteristics.

2. Building Authority Acceptance: Submit documentation confirming Building Code Authority Ac-ceptance.

1.05 WARRANTY

A. Project Warranty: Refer to “Conditions of the Contract” for project warranty provisions.

B. Manufacturer’s Product Warranty: Submit, for Owner’s acceptance, manufacturer’s warranty as follows:

1. Warranty Period: Ten (10) years from Date of Substantial Completion that the panel will be free from defects in lamination or separation of panel components.

1.06 QUALITY ASSURANCE

A. Qualifications:

1. Manufacturer Qualifications: Manufacturer shall have a minimum of 10 years demonstrated capability to produce reinforced stone veneer panels of the quality and scope required. Man-ufacturer shall have completed independent laboratory tests verifying performance capabili-ties and shall be able to furnish a list of references and previous projects of similar size and scope. Manufacturer must have acceptance by the appropriate building code authority with established ongoing building authority quality control. Manufacturer shall be capable of providing detailed shop drawings, field service representation during construction, and ap-proval of acceptable installers and approval of application method.

2. Installer Qualifications: Installer to demonstrate experience (as determined by contractor) to perform work of this section and who has specialized in the installation of work similar to that required for this project and is deemed acceptable to product manufacturer.

B. Pre-Installation Meetings: Conduct pre-installation meeting to verify project requirements, substrate conditions, manufacturer’s installation instructions, and manufacturer's warranty re-quirements.

1.07 DELIVERY, STORAGE, AND HANDLING

A. Ordering: Comply with manufacturer’s ordering instructions and lead-time requirements to avoid construction delays.

B. Packing, Shipping, Handling and Unloading: Deliver materials in manufacturer’s original, un-opened, undamaged containers with identification labels intact.

C. Storage and Protection: Store materials protected from exposure to harmful weather condi-tions. Handle material and components to avoid damage. Protect material against damage from elements, construction activities, and other hazards before, during and after installation.

STONE CLADDING PANELS 048500 - 4

PART 2 – PRODUCTS

2.01 MANUFACTURERS

A. Basis-of-Design Manufacturer: Subject to compliance with the requirements, provide products as indicated, from Coldspring; 2400 Hwy. 1431 W., Marble Falls, TX 78654; Telephone: 800- 328-5040; Product: StoneLite, or equivalent products by one of the following approved manu-facturers:

1. TerraCORE Panels

B. Substitutions:

1. General: Refer to Division 1 Substitutions for procedures and submission requirements.

2.02 MATERIALS

A. Natural Stone Honeycomb Reinforced Wall Cladding System:

1. Material Standard: Natural stone bonded to lightweight (aircraft quality) aluminum honeycomb having epoxy impregnated glass cloth skins.

2. Facing: 3/16” (4.8mm) +- 1/16” (1.6 mm) natural stone.

3. Reinforcing: ¾” (19mm) or 3/8” (10mm) aluminum honeycomb bonded by high strength epoxy impregnated reinforced glass cloth.

2.3 ACCESSORIES

A. Connection and anchorage hardware, including interlocking channels, anchor plates, Z-sections, angle clips and threaded inserts.

2.04 RELATED MATERIALS

A. Sealants: Sealant materials specified in section 07 92 00 shall be tested for compatibility with the natural stone honeycomb reinforced wall cladding specified.

2.05 FABRICATION

A. General:

1. Fabricate components on the structure intended to receive panels per manufacturer’s instal-lation instructions and with minimum clearances and shim spacing.

STONE CLADDING PANELS 048500 - 5

2.06 STONE TYPE AND FINISHES

A. Gascogne Beige Limestone

a. Honed

2.07 SOURCE QUALITY CONTROL

A. Source Quality: Provide Natural Stone Honeycomb Reinforced Wall Cladding System speci-fied herein from a single source.

PART 3 – EXECUTION

3.01 EXAMINATION

A. Site Verification of Conditions: Verify substrate conditions (which have been previously installed under other sections) are acceptable for product installation in accordance with manufacturer’s instructions. Verify modules are sized to receive natural stone honeycomb reinforced wall clad-ding system in accordance with manufacturer’s acceptable tolerances.

1. Field Measurements: Verify actual measurements/openings by field measurements be-fore fabrication. Confirm recorded measurements on shop drawings. Coordinate field measurements and fabrication schedule with construction progress to avoid construction delays.

3.02 INSTALLATION

A. General: Install lightweight honeycomb reinforced natural stone panel systems plumb, level and true to line, with manufacturer’s prescribed tolerances and installation instructions. Pro-vide supports and anchor in place.

1. Dissimilar Materials: Provide separation of aluminum materials from sources of corrosion or electrolytic action contact points.

2. Weather Tight Construction: Refer to installation instructions & consult sealant manufac-ture for project specific application. Coordinate installation with wall flashings and other components of construction.

B. Related Products Installation Requirements:

1. Sealants (Perimeter): Refer to Section 7 Joint Treatment (Sealants).

3.03 PROTECTION AND CLEANING

A. Protection: Protect installed product’s finish surfaces from damage during construction. Protect stone facing from damage from harmful contaminants.

B. Cleaning: Repair or replace damaged installed products. Clean installed products in accordance with manufacturer’s instructions prior to owner’s acceptance. Remove construction debris from project site and legally dispose of debris.

STONE CLADDING PANELS 048500 - 6

END OF SECTION 044313.13

STRUCTURAL STEEL FRAMING 051200 - 1

SECTION 051200 - STRUCTURAL STEEL FRAMING

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes but not limited to:

1. Structural-steel materials.

2. Shrinkage-resistant grout.

3. Shear stud connectors.

4. Galvanized finish for All steel exposed to exterior elements or in exterior wall assemblies.

B. Related Requirements:

1. Section 053100 "Steel Decking" for field installation of shear stud connectors through deck.

2. Section 055000 "Metal Fabrications" for miscellaneous steel fabrications and other steel items not defined as structural steel.

1.2 DEFINITIONS

A. Structural Steel: Elements of the structural frame indicated on Drawings and as described in

ANSI/AISC 303.

1.3 COORDINATION

A. Coordinate selection of shop primers with topcoats to be applied over them. Comply with paint and coating manufacturers' written recommendations to ensure that shop primers and topcoats are compatible with one another.

B. Coordinate installation of anchorage items to be embedded in or attached to other construction without delaying the Work. Provide setting diagrams, sheet metal templates, instructions, and directions for installation.

1.4 ACTION SUBMITTALS

A. Product Data:

1. Structural-steel materials.

2. High-strength, bolt-nut-washer assemblies.

3. Shear stud connectors.

4. Anchor rods.

5. Threaded rods.

6. Shop primer.

7. Galvanized repair paint.

8. Shrinkage-resistant grout.

B. Shop Drawings: Show fabrication of structural-steel components.

STRUCTURAL STEEL FRAMING 051200 - 2

1. Include details of cuts, connections, splices, camber, holes, and other pertinent data.

2. Include embedment Drawings.

3. Indicate welds by standard AWS symbols, distinguishing between shop and field welds, and show size, length, and type of each weld. Show backing bars that are to be removed and supplemental fillet welds where backing bars are to remain.

4. Indicate type, size, and length of bolts, distinguishing between shop and field bolts.

Identify pretensioned and slip-critical, high-strength bolted connections.

C. Welding Procedure Specifications (WPSs) and Procedure Qualification Records (PQRs):

Provide in accordance with AWS D1.1/D1.1M for each welded joint, including the following:

1. Power source (constant current or constant voltage).

2. Electrode manufacturer and trade name, for demand-critical welds.

D. Delegated Design Submittal: For structural-steel connections indicated on Drawings to comply with design loads, include analysis data signed and sealed by the qualified professional engineer responsible for their preparation.

1.5 INFORMATIONAL SUBMITTALS

A. Qualification Data: For Installer and fabricator.

B. Welding certificates.

C. Mill test reports for structural-steel materials, including chemical and physical properties.

D. Product Test Reports: For the following:

1. Bolts, nuts, and washers, including mechanical properties and chemical analysis.

2. Direct-tension indicators.

3. Tension-control, high-strength, bolt-nut-washer assemblies.

4. Shear stud connectors.

E. Survey of existing conditions.

F. Source quality-control reports.

1.6 QUALITY ASSURANCE

A. Fabricator Qualifications: A qualified fabricator that participates in the AISC Quality Certification Program and is designated an AISC-Certified Plant, Category BU or is accredited by the IAS Fabricator Inspection Program for Structural Steel (Acceptance Criteria 172).

B. Installer Qualifications: A qualified Installer who participates in the AISC Quality Certification Program and is designated an AISC-Certified Erector, Category CSE.

C. Welding Qualifications: Qualify procedures and personnel in accordance with AWS D1.1/D1.1M.

STRUCTURAL STEEL FRAMING 051200 - 3

1.7 DELIVERY, STORAGE, AND HANDLING

A. Store materials to permit easy access for inspection and identification. Keep steel members off ground and spaced by using pallets, dunnage, or other supports and spacers. Protect steel members and packaged materials from corrosion and deterioration.

1. Do not store materials on structure in a manner that might cause distortion, damage, or overload to members or supporting structures. Repair or replace damaged materials or structures as directed.

B. Store fasteners in a protected place in sealed containers with manufacturer's labels intact.

1. Fasteners may be repackaged provided Owner's testing and inspecting agency observes repackaging and seals containers.

2. Clean and relubricate bolts and nuts that become dry or rusty before use.

3. Comply with manufacturers' written recommendations for cleaning and lubricating

ASTM F3125/F3125M, Grade F1852 bolt assemblies and for retesting bolt assemblies after lubrication.

PART 2 - PRODUCTS

2.1 PERFORMANCE REQUIREMENTS

A. Comply with applicable provisions of the following specifications and documents:

1. ANSI/AISC 303.

B. Connection Design Information:

1. Option 3 and 3B: Design connections and final configuration of member reinforcement at connections in accordance with ANSI/AISC 303 by fabricator's qualified professional engineer.

a. Use Load and Resistance Factor Design; data are given at factored-load level.

C. Moment Connections: Type PR, partially restrained.

D. Construction: Combined system of braced frame and shear walls.

2.2 STRUCTURAL-STEEL MATERIALS

A. W-Shapes: ASTM A992/A992M.

B. Channels and Angles: ASTM A36/A36M.

C. Plate and Bar: ASTM A36/A36M.

D. Cold-Formed Hollow Structural Sections: ASTM A500/A500M, Grade B structural tubing.

E. Steel Pipe: ASTM A53/A53M, Type E or Type S, Grade B.

STRUCTURAL STEEL FRAMING 051200 - 4

F. Welding Electrodes: Comply with AWS requirements.

2.3 BOLTS AND CONNECTORS

A. High-Strength A325 Bolts, Nuts, and Washers: ASTM F3125/F3125M, Grade A325 (Grade A325M), Type 1, heavy-hex steel structural bolts; ASTM A563, Grade DH (ASTM A563M, Class 10S), heavy-hex carbon-steel nuts; and ASTM F436/F436M, Type 1, hardened carbon-steel washers; all with plain finish.

1. Direct-Tension Indicators: ASTM F959/F959M, Type 325-1 (Type 8.8-1), compressible-washer type with plain finish.

B. High-Strength A490 Bolts, Nuts, and Washers: ASTM F3125/F3125M, Grade A490 (Grade A490M), Type 1, heavy-hex steel structural bolts or Grade F2280 tension-control, bolt-nut-washer assemblies with splined ends; ASTM A563, Grade DH (ASTM A563M, Class 10S), heavy-hex carbon-steel nuts; and ASTM F436/F436M, Type 1, hardened carbon-steel washers;

all with plain finish.

1. Direct-Tension Indicators: ASTM F959/F959M, Type 490-1 (Type 10.9-1), compressible-washer type with plain finish.

C. Shear Stud Connectors: ASTM A108, AISI C-1015 through C-1020, headed-stud type, cold-finished carbon steel; AWS D1.1/D1.1M, Type B.

2.4 RODS

A. Unheaded Anchor Rods: ASTM F1554, Grade 55, weldable.

1. Configuration: Straight.

2. Nuts: ASTM A563 (ASTM A563M) heavy-hex carbon steel.

3. Plate Washers: ASTM A36/A36M carbon steel.

4. Washers: ASTM F436 (ASTM F436M), Type 1, hardened carbon steel.

5. Finish: Plain.

B. Threaded Rods: ASTM A36/A36M.

1. Nuts: ASTM A63 (ASTM A563M) heavy-hex carbon steel.

2. Washers: ASTM A36/A36M carbon steel.

3. Finish: Plain.

2.5 PRIMER

A. Steel Primer:

1. Fabricator's standard lead- and chromate-free, nonasphaltic, rust-inhibiting primer complying with MPI#79 and compatible with topcoat.

2.6 SHRINKAGE-RESISTANT GROUT

A. Nonmetallic, Shrinkage-Resistant Grout: ASTM C1107/C1107M, factory-packaged, nonmetallic aggregate grout, noncorrosive and nonstaining, mixed with water to consistency suitable for application and a 30-minute working time.

STRUCTURAL STEEL FRAMING 051200 - 5

2.7 FABRICATION

A. Structural Steel: Fabricate and assemble in shop to greatest extent possible. Fabricate in accordance with ANSI/AISC 303 and to ANSI/AISC 360.

1. Camber structural-steel members where indicated.

2. Fabricate beams with rolling camber up.

3. Identify high-strength structural steel in accordance with ASTM A6/A6M and maintain markings until structural-steel framing has been erected.

4. Mark and match-mark materials for field assembly.

5. Complete structural-steel assemblies, including welding of units, before starting shop-priming operations.

B. Thermal Cutting: Perform thermal cutting by machine to greatest extent possible.

1. Plane thermally cut edges to be welded to comply with requirements in

AWS D1.1/D1.1M.

C. Bolt Holes: Cut, drill, mechanically thermal cut, or punch standard bolt holes perpendicular to metal surfaces.

D. Finishing: Accurately finish ends of columns and other members transmitting bearing loads.

E. Cleaning: Clean and prepare steel surfaces that are to remain unpainted in accordance with SSPC-SP 1. and SSPC-SP 2.

F. Shear Stud Connectors: Prepare steel surfaces as recommended by manufacturer of shear connectors. Weld using automatic end welding of headed-stud shear connectors in accordance with AWS D1.1/D1.1M and manufacturer's written instructions.

G. Holes: Provide holes required for securing other work to structural steel and for other work to pass through steel members.

1. Cut, drill, or punch holes perpendicular to steel surfaces. Do not thermally cut bolt holes or enlarge holes by burning.

2. Baseplate Holes: Cut, drill, mechanically thermal cut, or punch holes perpendicular to steel surfaces.

3. Weld threaded nuts to framing and other specialty items indicated to receive other work.

2.8 SHOP CONNECTIONS

A. High-Strength Bolts: Shop install high-strength bolts in accordance with RCSC's "Specification for Structural Joints Using High-Strength Bolts" for type of bolt and type of joint specified.

1. Joint Type: Snug tightened.

B. Weld Connections: Comply with AWS D1.1/D1.1M for tolerances, appearances, welding procedure specifications, weld quality, and methods used in correcting welding work.

2.9 GALVANIZING

A. Hot-Dip Galvanized Finish: Apply zinc coating by the hot-dip process to structural steel in accordance with ASTM A123/A123M.

STRUCTURAL STEEL FRAMING 051200 - 6

1. Fill vent and drain holes that are exposed in the finished Work unless they function as weep holes, by plugging with zinc solder and filing off smooth.

2. Galvanize lintels, shelf angles, and welded door frames attached to structural-steel frame and located in exterior walls.

B. Galvanized finish shall be provided for All steel exposed to exterior elements or in exterior wall assemblies.

2.10 SHOP PRIMING

A. Shop prime steel surfaces, except the following:

1. Surfaces embedded in concrete or mortar. Extend priming of partially embedded members to a depth of 2 inches (50 mm).

2. Surfaces to be field welded.

3. Surfaces of high-strength bolted, slip-critical connections.

4. Surfaces to receive sprayed fire-resistive materials (applied fireproofing).

5. Galvanized surfaces unless indicated to be painted.

B. Surface Preparation of Steel: Clean surfaces to be painted. Remove loose rust and mill scale and spatter, slag, or flux deposits. Prepare surfaces in accordance with the following specifications and standards:

1. SSPC-SP 2.

2. SSPC-SP 3.

C. Surface Preparation of Galvanized Steel: Prepare galvanized-steel surfaces for shop priming by thoroughly cleaning steel of grease, dirt, oil, flux, and other foreign matter, and treating with etching cleaner.

D. Priming: Immediately after surface preparation, apply primer in accordance with manufacturer's written instructions and at rate recommended by SSPC to provide a minimum dry film thickness of 1.5 mils (0.038 mm). Use priming methods that result in full coverage of joints, corners, edges, and exposed surfaces.

2.11 SOURCE QUALITY CONTROL

A. Testing Agency: Owner will engage a qualified testing agency to perform shop tests and inspections.

1. Allow testing agency access to places where structural-steel work is being fabricated or produced to perform tests and inspections.

2. Bolted Connections: Inspect shop-bolted connections in accordance with RCSC's "Specification for Structural Joints Using High-Strength Bolts."

3. Welded Connections: Visually inspect shop-welded connections in accordance with AWS D1.1/D1.1M and the following inspection procedures, at testing agency's option:

a. Liquid Penetrant Inspection: ASTM E165/E165M.

b. Magnetic Particle Inspection: ASTM E709; performed on root pass and on finished weld. Cracks or zones of incomplete fusion or penetration are not accepted.

c. Ultrasonic Inspection: ASTM E164.

d. Radiographic Inspection: ASTM E94/E94M.

STRUCTURAL STEEL FRAMING 051200 - 7

4. In addition to visual inspection, test and inspect shop-welded shear stud connectors in accordance with requirements in AWS D1.1/D1.1M for stud welding and as follows:

a. Perform bend tests if visual inspections reveal either a less-than-continuous 360-degree flash or welding repairs to any shear stud connector.

b. Conduct tests in accordance with requirements in AWS D1.1/D1.1M on additional shear stud connectors if weld fracture occurs on shear stud connectors already tested.

5. Prepare test and inspection reports.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Verify, with certified steel erector present, elevations of concrete- and masonry-bearing surfaces and locations of anchor rods, bearing plates, and other embedments for compliance with requirements.

1. Prepare a certified survey of existing conditions. Include bearing surfaces, anchor rods, bearing plates, and other embedments showing dimensions, locations, angles, and elevations.

B. Galvanized finish shall be provided for All steel exposed to exterior elements or in exterior wall assemblies.

C. Proceed with installation only after unsatisfactory conditions have been corrected.

3.2 PREPARATION

A. Provide temporary shores, guys, braces, and other supports during erection to keep structural steel secure, plumb, and in alignment against temporary construction loads and loads equal in intensity to design loads. Remove temporary supports when permanent structural steel, connections, and bracing are in place unless otherwise indicated on Drawings.

1. Do not remove temporary shoring supporting composite deck construction and structural-steel framing until cast-in-place concrete has attained its design compressive strength.

3.3 ERECTION

A. Set structural steel accurately in locations and to elevations indicated and in accordance with ANSI/AISC 303 and ANSI/AISC 360.

B. Baseplates, Bearing Plates, and Leveling Plates: Clean concrete- and masonry-bearing surfaces of bond-reducing materials, and roughen surfaces prior to setting plates. Clean bottom surface of plates.

1. Set plates for structural members on wedges, shims, or setting nuts as required.

2. Weld plate washers to top of baseplate.

STRUCTURAL STEEL FRAMING 051200 - 8

3. Snug-tighten anchor rods after supported members have been positioned and plumbed.

Do not remove wedges or shims but, if protruding, cut off flush with edge of plate before packing with grout.

4. Promptly pack shrinkage-resistant grout solidly between bearing surfaces and plates, so no voids remain. Neatly finish exposed surfaces; protect grout and allow to cure. Comply with manufacturer's written installation instructions for grouting.

C. Maintain erection tolerances of structural steel within ANSI/AISC 303.

D. Align and adjust various members that form part of complete frame or structure before permanently fastening. Before assembly, clean bearing surfaces and other surfaces that are in permanent contact with members. Perform necessary adjustments to compensate for discrepancies in elevations and alignment.

1. Level and plumb individual members of structure. Slope roof framing members to slopes indicated on Drawings.

E. Splice members only where indicated.

F. Do not use thermal cutting during erection.

G. Do not enlarge unfair holes in members by burning or using drift pins. Ream holes that must be enlarged to admit bolts.

3.4 FIELD CONNECTIONS

A. High-Strength Bolts: Install high-strength bolts in accordance with RCSC's "Specification for Structural Joints Using High-Strength Bolts" for bolt and joint type specified.

1. Joint Type: Snug tightened.

B. Weld Connections: Comply with AWS D1.1/D1.1M for tolerances, appearances, welding procedure specifications, weld quality, and methods used in correcting welding work.

1. Comply with ANSI/AISC 303 and ANSI/AISC 360 for bearing, alignment, adequacy of temporary connections, and removal of paint on surfaces adjacent to field welds.

2. Remove backing bars or runoff tabs, back gouge, and grind steel smooth. Reweld with reinforcing weld

3. Assemble and weld built-up sections by methods that…