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Home My WebLink About2025-11-25 - AGENDA REPORTS - CITY HALL AND VALENCIA LIBRARY - PROJ M1044 CONST CONTR MODSAgenda Item• 12 CITY OF SANTA CLARITA .` AGENDA REPORT CONSENT CALENDAR CITY MANAGER APPROVAL: DATE: November 25, 2025 SUBJECT: CITY HALL & VALENCIA LIBRARY WINDOW SEAL & WALL JOINT REPAIR - PROJECT M1044 CONSTRUCTION CONTRACT MODIFICATIONS DEPARTMENT: Neighborhood Services PRESENTER: Cassidy Skelton RECOMMENDED ACTION City Council: 1. Authorize an increased expenditure authority for construction activity with Angelus Waterproofing and Restoration, Inc., in the amount of $93,000 for a revised total contract amount not to exceed $477,777. 2. Appropriate $93,000 from General Fund Capital Projects Fund (Fund 601) to expenditure account M1044601-516101. Increase transfers out from General Fund (fund 100) account 1009500-710601 and increase transfers in to General Fund Capital Projects Fund (Fund 601) account 601-600100 in the amount of $93,000. 3. Authorize the City Manager or designee to execute all documents, subject to City Attorney approval. BACKGROUND The City of Santa Clarita (City) City Hall was constructed in 1986 and acquired by the City in 1991. The building is approximately 74,000 square feet and serves as the central facility for several City departments. In 2011, the City Council approved the acquisition of the public libraries from Los Angeles County, which included the Valencia Library. The Valencia Library is roughly 24,000 square feet and provides public, office, and meeting space serving the Valencia and Saugus communities. In June 2025, the City Council awarded a contract to Angelus Waterproofing and Restoration, Inc., following a formal competitive bidding process, to complete the City Hall & Valencia Library Window Seal & Wall Joint Repair Project, which focuses on replacing deteriorating seals and addressing long-standing moisture issues at both Page 1 Packet Pg. 335 facilities. As work has progressed, additional repair needs specific to the City Hall portion of the project have been identified that were not included in the original scope. Once the project started, the first application of the new sealant system, the required pull tests failed to meet the manufacturer's specifications. To ensure the project qualifies for the full 20-year warranty and provides long-term protection against water intrusion, the failed test requires additional preparation work, sealant removal, and re -application measures across multiple locations. These issues could not have been identified when City staff initially created the project scope because the testing only happens once the old material is taken off and the new sealant material is applied, then tested. The revised application detail from the manufacturer to rectify the issues requires two applications rather than the originally identified single application. This requires the contractor to mobilize elevated staging twice in each area to allow time for the first application to cure before the second application is installed. This correlates to extended labor hours to effectively install the sealant, as well as additional rental costs for the equipment being used. To confirm the need for the additional work and validate the contractor's findings, City staff brought in a third -party specialist to review the results and verify that the corrective measures are necessary to achieve proper adhesion and long-term performance. The additional work totals approximately $93,000 and is required to correctly complete the City Hall repairs and prevent future leaks, particularly during storm events. The requested budget appropriation, combined with the existing project budget, will fully fund the revised scope of work. ALTERNATIVE ACTION Other action as determined by the City Council. FISCAL IMPACT Upon approval of the recommended action, adequate funds in the amount of $496,436 are available in the City Hall & Valencia Library Window Seal & Wall Joint Repair, Project M1044, expenditure accounts M1044309-516101 (Public Library Fund) and M1044601-516101 (General Fund - Capital) to support the recommended contract and associated project costs. ATTACHMENTS Change Order Request (available in the City Clerk's Reading File) Page 2 Packet Pg. 336 ANGELl1S To: Cassidy Skelton City of Santa Clarita PROPOSAL 250806 R.F.C/O 1 Date: November 12, 2025 Project: City Hall Valenica We propose to furnish all necessary labor, material, equipment, supervision, and insurance to complete the following work at the above address: SECTION 07 9200 AREA: window flange to brick double joint repair Scope of Work — Sealant 1. Remove existing new joints from the window to brick and at brick to brick, 2. Install backer rod and caulk as per contract 3. Added scope per Tremco due to wrong installation during construction of building 4. New detail Install bond breaker tape with second sealant joint not per contract 5. Materials $15,230 6. Swing Stage rental $8,040 7. Labor to move stages and reseal with double joint $51,500 Scope of Work: Window 1 1. Caution off area 2. AWR to provide lift for removal & replacement of window, plus a ground man 3. Remove cracked window size 44 3/4by 94 inches, 1/4 of a inch thick, and install #2-743 polish 1/4 double coat opaci $9,804 Scope of Work Window 2 1. Caution off area 2. AWR to provide lift for removal and replacement of window. Plus, a ground man 3. Remove cracked window 44 by 60 a 1/4 of a inch thick and replace with a '/4inch 44 by 60 clear glass, tint to be applied later. $7,983 Price $92,557 STANDARD NOTES: a. Angelus Waterproofing & Restoration Inc. is a certified SBE company and is signatory to Cement Masons, Water Proofers, UNIONS. b. Insurance Coverage Carried: One Million Dollars General Liability and Automobile Liability excluding XCU. Contracts under $10,000.00 will not be issued additional insured endorsements. c. Performance and Payment Bonds are not included in the Total Price. d. Permits and Inspections are not included. e. All work to be performed as per manufacturers' specifications and recommendations. f. Waiver of Subrogation Endorsement is not included in Total Price, if required; please contact us before execution of authorization. g. 5 days advance notice prior to commencing work. 17762 METZLER Lv. HUNTINGTON BEACH., CA 92647 - PHONE (562) 941-7676 - FAX (562) 941-1166 h. All items not included in scope of work are specifically excluded. i. Payment is based on Net 30 Days or subject to late charge of 11/2% per month. TERMS: This proposal is subject to review if not accepted within 30 days from above date and is contingent upon strikes, fires, accidents, labor or material price increases or any other causes beyond our control. ACCEPTED BY RESPECTFULLY SUBMITTED, ANGELUS WATERPROOFING AND RESTORATION, INC. BY Authorized Representative DATE BY Richard O'Hehir, Angelus Waterproofing Page 2of2 ANINL TREMCO Construction Products Croup October 16, 2025. To: Richard O'Hehir Angelus Waterproofing and Restoration, Inc. 17762 Metzler Ln, Huntington Beach, CA 92647. richardo@angeluswp.com Project: City Hall & Valencia Library. Re: Window perimeter reseal. Tremco CPG Inc. 3735 Green Road Beachwood, off 44122 us: 800.852.9068 Canada: 600.263.6046 www.tr@mcocpg.com It was found that the original sealant that was installed had not filled the joint for proper adhesion only adhering to the building substrate and -1/8" of the window frame (the joint was observed to create an L shape). Tremco recommends installing 2 joints/beads, one to fill the void behind the metal and a second to properly seal the window perimeter. To Whom It May Concern, If there are any questions or additional information is needed, please feel free to contact me directly. Sincerely, i Jason Bashford Technical Sales Representative SoCal Tremco Sealants & Waterproofing jbashford@tremcoinc.com 216 218 9436 ANGELl1S After removal of the existing joint, it was observed that the existing joint was improperly installed which left a large hollow gap New application of backer rod to fill the gap 17762 METZLER LN, HHNTINGTON BEACH., CA 92647 - PHONE (562) 941-7676 - FAX (562) 941-1166 First lift of the new multi -lift installation of sealant. Additional layer of bond -breaker tape and sealant to be installed after 21 day cure time Page 2of2 (E) BRICK FACADE (BY OTHERS) SPECTREM 1 SILICONE (SECONDARY JOINT, APPLIED AFTER PRIMARY BEAD IS FULLY CURED) SPECTREM 1 SILICONE (PRIMARY BEAD) =` hill 1 /4" MIN. <_> DEPTH CLOSED CELL BACKER ROD FLANGED WINDOW (BY OTHERS) NOTE: SUBSTRATE SHALL BE CLEAN DRY AND UNCONTAMINATED PRIOR TO APPLICATION NOTE: AN ADHESION TEST IS RECOMMENDED TO DETERMINE IF PRIMER IS REQUIRED. rAfffmc0® Project: VALENCIA CITY HALL This detail is intended for conceptual purposes only. Sheet Number: File Name: Rev# www.tremcosealants.com Detail: SEALANT TO EXISTING WINDOW HEAD 3735 Green Road' Beachwood, off 44122 Phone: 866-209-2404"Fax: 216-766-5535 Date: 10/27/2025 EX WSJ 2025 10 27 �� Drawn by: JM Checked by: XXX scale: None