CON26-0011_Addendum_1.pdf

October 9, 2025 To: Prospective Bidders

Contract No. CON26-0011 is amended in accordance with the following Addendum No. 1 which is made part of said Specification:

ADDENDUM NO. 1

TO CONTRACT NO. CON26-0011 Geneva Office Building

Acknowledge receipt of this Addendum in the space provided on this notice below and submit with Bid Form by bid due date. Failure to do so may subject Bid to disqualification.

Item #1 - ANSWERS TO BIDDER RFI’s

1. Scope of work no longer includes selective replacement and repointing of existing brick

Brick Cleaning brick on the San Jose and Geneva Ave facades Removal of graffiti, improper paint coatings and biological growth from existing brick Selective replacement/patching of existing brick and pointing/repointing of masonry

A) BID ITEM 1: BRICK CLEANING AND SELECTIVE REPLACEMENT– See Attachment 1

• Cleaning brick on the San Jose and Geneva Avenue facades – Total brick area is ~3,264 SF on both the facades

• Must be cleaned with the gentlest means possible, such as low-pressure water or mild detergents combined with the use of a natural-bristled brush

• High-pressure water treatments and sandblasting should be avoided, as they can cause further damage

• Patches of brick in inconspicuous locations should be identified for test cleaning to ensure there are no negative effects of the cleaning technique

• Historic wood elements should be protected before beginning the cleaning process

• Removal of graffiti, improper paint coatings and biological growth from existing brick (Refer to Spec

Section 04 01 00)

• Removing paint and some other coatings, stains and graffiti can best be accomplished with alkaline paint removers, organic solvent paint removers, or other cleaning compounds

• Removal of paint from a masonry surface involves applying the remover by roller, brush, or spraying, followed by a thorough water wash

• As with cleaning, patches of brick in inconspicuous locations should be identified for testing paint removal techniques

• All damaged and missing bricks on west and north façade must be replaced (Refer to Spec Section 04

05 21)

• Refer to the National Park Service’s Preservation Brief 1: Assessing Cleaning and Water

• Repellant Treatments for Historic Masonry Buildings, for more detailed information on

• cleaning techniques.

• NOTE: Water drainage issues must first be resolved before cleaning of the brick to prevent further damage

2. SCHEDULE OF BID PRICES

Description (Lump Sum Bid) Bid Amount

BID ITEM 1: Brick Cleaning and Selective Replacement (lump sum)

BID ITEM 2: Wood Windows (lump sum)

BID ITEM 3: Gutters and Downspouts (lump sum)

BID ITEM 4: Window Vents and Doors (lump sum)

Total

3. Please confirm clear KD redwood or western red cedar as acceptable wood species for the wood repair at four window bays and turret.

Confirmed with the first choice being Western Red Cedar

4. Please advise if lead is present in existing exterior woodwork.

Existing exterior woodwork may contain lead-based paint due to the building’s age. Contractors shall assume lead is present and perform all work in accordance with Cal/OSHA Lead in Construction Standard (8 CCR 1532.1) and all applicable local, state, and federal regulations. Proper containment, worker protection, and disposal procedures shall be implemented during paint removal and surface preparation activities.

3. Please advise if the sheet metal step flashing above the window bays is to be replaced.

Existing sheet metal that ties into brick to remain.

4. Please advise if temporary power is available for use during the project.

As the bid solicitation document states, temporary power to be supplied by Contractor, at Contractors expense.

5. Please provide a roof to gutter transition detail.

New gutters and downspouts shall match existing in profile and size and be connected to existing roof conditions in-kind. No new connection detail is required beyond matching existing installation.

Stainless steel gutters and downspouts to be used.

6. Please confirm if exact profile matches are required for replacement trim. If so, please advise if previously replaced sections of incorrect profiles are to be replaced with the original profile.

Yes. Replacement trim shall match the original historic profile, dimensions, and detailing to the greatest extent feasible. Where existing trim was previously replaced with an incorrect profile but remains in good condition, it does not need to be removed or replaced as part of this scope. Only deteriorated or missing trim shall be replaced, and all new trim shall match the original historic profile.

7. Panel detailing has been removed from the bottom of the turret and patched over with vertical T&G boards.

Please advise if the T&G is to be replicated at turret or removed and the original details recreated.

The original details of the panel are to be replicated

8. Access on corner where train turns how will access be provided to work on wood and gutters. Will they shut down MUNI and or powerlines?

RPD and MTA are in the process of coordinating this.

9. Scaffold- Will it be shrink wrapped or netted.

Scaffolding shall be netted, not shrink-wrapped, to allow for proper ventilation during masonry cleaning and to prevent moisture entrapment. Netting shall be installed to ensure debris containment and safety compliance per Cal/OSHA requirements.

10. To what extent is the brick repair? Full restore? Or only what is specified and if only specified could we have a detailed list of quantities for pointing and brick repair.

For the purpose of this phase of the project brick repair, replacement and repointing has been removed from the scope

11. Led abatement?

Yes. The Contractor shall include lead-safe work practices and abatement as required to complete the scope of work.

12. Where graffiti was covered, do they want us to strip those areas to bare brick?

Remove paint, coatings, and any other foreign material, in a manner that does not damage the masonry. The following are not allowed:

a) Abrasive cleaning of any sort.

b) Mechanical means.

c) Caustic paint removals or strippers, unless specifically tested and approved for use.

Refer to Spec 04 01 00, Section 3.04

13. Waterproofing around windows, what type of material?

Waterproofing around windows shall be performed using a self-adhered waterproofing membrane such as Bituthene or approved equal, applied per manufacturer’s recommendations. The membrane shall be compatible with adjacent materials and integrated with existing flashing to ensure a continuous, watertight seal. All joints shall be properly prepared, primed and sealed to prevent moisture intrusion.

14. Will all sheet metal be replaced that ties into brick and is on the window popouts?

Existing sheet metal that ties into brick to remain.

15. Is it up to our discretion whether or not a brick is replaced. For example do we replace a brick when 50% of it is damaged or missing, or do we replace the brick if only 25% of the brick is damaged or missing?

For the purpose of this phase of the project brick repair, replacement and repointing has been removed from the scope

16. There are many very wide cracks that have exposed themselves through the mortar joints of the brick where it looks as though the wall is separating from itself. It is evident that this is structural, there is something going on deep behind the brick. Regular pointing or patching will not band aid this situation. We are wondering weather there will be a structural engineer that could provided guidance on repairs.

For the purpose of this phase of the project brick repair, replacement and repointing has been removed from the scope

17. Will there be time for a deeper investigation into the brick work?

For the purpose of this phase of the project, cleaning is the only scope related to brick

18. Specifications for Wood Replacement See attached spec 06 01 40 Repair and Restoration of Architectural Woodwork and 09 90 00 Painting and Coating

19. Additional specifications for Historic Treatment Procedures See attached spec section 01 35 91 Historic Treatment Procedures

Item #2 – Additional Attachments

Please see attached for four (4) addendum attachments.

Sincerely:

Sean McFadden Sanjana Appachu

Recreation and Park Department Recreation and Park Department

Acknowledgement of Receipt:

Signature of Authorized Representative Print Name and Title