Attachment_1_Part_3_Specifications_PORE_149469.pdf

Appendix D: ARG/CS Stationary Equipment Report

POINT REYES

NATIONAL SEASHORE

Fog Signal Equipment Building Conditions Assessment of Interior Objects prepared for:

prepared by:

Architectural Resources Group

ARG Conservation Services, Inc.

Pier 9, The Embarcadero #107 San Francisco, California 94111

License No. 799537 www.argcs.com

CS17048

http://www.argcs.com/

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CONTENTS

Project Team

– 1 –

Executive Summary

– 1 –

Air Compressor Tank

– 2 –

Generator and Batteries

– 4 –

Gage Board

– 8 –

Two Diaphones

– 10 –

Two Air Compressors

– 14 –

Panel Board

– 18 –

Diesel Fuel Panel

– 20 –

POINT REYES NATIONAL SEASHORE LIGHTHOUSE FOG SIGNAL EQUIPMENT BUILDING

NATIONAL PARK SERVICE | ARG CONSERVATION SERVICES, INC. | LICENSE NO. 799537 1

Executive Summary

ARG Conservation Services (ARG/CS) was retained by Architectural Resources Group to evaluate the existing conditions and make recommendations for selected equipment in the Fog Signal Equipment Building at Point Reyes National Seashore. The equipment evaluated included the air compressor tank, generator and batteries, gage board, two diaphones, two air compressors, panel board, and diesel fuel panel. All of the equipment is non-operational and generally composed of coated ferrous metals, with the exception of the gage board which is wood and metal.

The ferrous metals are actively corroding and the coatings in most cases are failing. The failing coatings pose the most serious hazard to visitors. We understand that hazardous materials testing has already been conducted and should be consulted in conjunction with this report. There are two primary treatment approaches we recommend for this equipment, which would ameliorate hazards associated with the lead-based paint. One approach would be conservation, during which flaking coatings would be removed and the equipment sealed with a clear coating to encapsulate the lead paint. The second would be restoration, during which deteriorated coatings would be removed, the surface prepped, corrosion removed down to bright metal, a corrosion inhibitor applied, and the equipment recoated using a durable coating system appropriate for ferrous metals in caustic marine environments. The restoration could be taken a step further with all coatings (even at locations that are not deteriorated) removed down to bright metal and recoated; however, we do not think these items warrant the cost associated with doing this level of work.

Project Team

National Park Service Point Reyes National Seashore Lighthouse

Architectural Resources Group Lacey Bubnash, AIA, Senior Associate

ARG Conservation Services, Inc.

Lyles McBratney, Conservation Manager

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Air Compressor Tank

Image 1

Image 2

EXISTING CONDITIONS/CONCERNS

• Crazing, flaking, peeling, paint (Image 1).

• Areas of corrosion along the middle riveted joint of the tank, at the bottom of the tank, and on and around the tank opening (Image 2).

• Paint flakes on the floor that pose a hazard to visitors (Image 3).

RECOMMENDATIONS

• Sweep or vacuum paint flakes on floor until a more comprehensive treatment can be done.

• Keep visitors from touching the tank surfaces.

• Conservation:

• Remove flaking and/or deteriorated coatings.

• Remove loose corrosion.

• Seal with clear sealant.

• Restoration:

• Remove deteriorated coatings.

• Prep deteriorated surfaces, removing corrosion down to bright metal.

• Apply rust inhibitor.

• Recoat using a zinc-rich primer, followed by two coats of a two-part epoxy, and a final coat of polyurethane.

MAINTENANCE RECOMMENDATIONS

• Monitor conditions.

• Maintain coatings.

Image 3

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Image 4

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Generator and Batteries

Image 5

Image 6

Image 7

• Crazing, flaking, peeling paint (Image 5).

• Areas of corrosion (Images 6 and 7).

• Exposed sharp edges in areas of heavy corrosion (Image 9).

• Unidentifiable friable material dropping out of the opening on the south side of the generator (Image 9).

• Previously insulated pipes and insulated wiring not included in the hazardous materials report (Image 10).

• Small crevices and openings that pose hazards to unattended children (Image 11).

• Sweep or vacuum paint flakes on floor until a more comprehensive treatment can be done.

• Keep visitors from touching painted surfaces via monitoring or barriers.

• Conduct additional hazardous materials testing on friable material and pipe/wiring insulation. Provide clear protective covers if hazardous materials cannot be removed from equipment interiors.

• Conservation:

• Remove flaking and/or deteriorated coatings.

• Remove loose corrosion.

• Grind down all sharp edges and possibly add protection at sharp edges.

• Seal with a clear sealant.

• Restoration:

• Remove deteriorated coatings.

• Prep surface, removing corrosion down to bright metal.

• Apply a rust inhibitor.

• Recoat using a zinc-rich primer, followed by two coats of a two-part epoxy, and final coat of polyurethane.

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Image 8

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Image 9

Image 10

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Image 11

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Image 12

Gage Board

• Deteriorated finishes.

• Graffiti/vandalism.

• Loss of the lighthouse inlay.

• Corrosion of metal gage.

• Broken interior mechanisms of gage

(Image 12).

• Restoration:

• Inpaint the "Point Reyes" text.

• Inpaint/color integrate scratches and graffiti.

• Replicate the lighthouse inlay and install.

• Coat the wood with a protective coating.

• Clean and recoat the exterior of the gage box.

• Repair the interior mechanism and/or secure loose items to prevent theft.

• Recoat the two metal boxes beside the gage board.

• Consider barriers or a protective enclosure for future display.

• Maintain protective coating on the wood finish and gage.

NATIONAL PARK SERVICE | ARG CONSERVATION SERVICES, INC. | LICENSE NO. 799537 9

Image 13

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Two Diaphones

Image 14

Image 15

• Heavy corrosion of the steel bases.

• Corrosion at the hinges (Image 18).

• General deterioration of the galvanized metal (Image 19).

• Minor corrosion of the diaphone amplifiers

(Images 20 and 21).

• Remove the diaphones form their bases.

• Clean the bases down to bright metal and coat.

• Remove the other areas of corrosion and treat with a corrosion inhibitor.

• Apply a protective sealant.

• Repair the leg of one of the bases.

• Reattach the diaphones to their bases with new connections.

Image 16

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Image 17

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Image 18

Image 19

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Image 20

Image 21

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Image 22

Two Air Compressors

• Crazing, flaking, and peeling paint (Image

24).

• Areas of corrosion (Image 25).

• Exposed sharp edges (Image 26).

hazards to small children.

• Sweep or vacuum paint flakes on floor until more comprehensive treatment can be done.

• Keep visitors from touching painted surfaces via barriers or protective enclosures.

• Conservation:

• Remove flaking and/or deteriorated coatings.

• Remove loose surface corrosion.

• Add protection at all sharp edges.

• Seal with a clear sealant

• Restoration:

• Remove deteriorated coatings.

• Prep surface, removing corrosion down to bright metal.

• Apply a rust inhibitor.

• Recoat using a zinc-rich primer, followed by two coats of a two-part epoxy, and final coat of polyurethane.

• Add protection at all sharp edges.d

NATIONAL PARK SERVICE | ARG CONSERVATION SERVICES, INC. | LICENSE NO. 799537 15

Image 23

Image 24

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Image 25

Image 26

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Panel Board

Image 27

Image 28

• Deteriorated paint (Image 27).

• Areas of corrosion.

• Exposed sharp edges (Image 28).

• Detached metal screening (Image 29).

hazards to unattended children.

• Keep visitors from touching painted surfaces.

• Conservation:

• Remove deteriorated coatings.

• Remove loose corrosion.

• Grind down all sharp edges and possibly add protection at all sharp edges, such as foam or plastic corner covers.

• Reattach screen.

• Seal with a clear sealant.

• Restoration:

• Remove deteriorated coatings.

• Prep surface, removing corrosion down to bright metal.

• Apply a rust inhibitor.

• Remove and replace corroded and detached screen.

• Recoat using a zinc0-rich primer, followed by two coats of a a two-part epoxy, and a final coat of polyurethane.

Image 29

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Image 30

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Diesel Fuel Panel

• Deteriorated paint.

• Areas of heavy corrosion.

• Keep visitors from touching painted surfaces via barriers or exhibit enclosures.

• Conservation:

• Remove deteriorated coatings.

• Remove loose surface corrosion.

• Seal with a clear sealant.

• Restoration:

• Remove deteriorated coatings.

• Prep surface, removing corrosion down to bare metal.

• Apply a rust inhibitor.

• Recoat using a zinc-rich primer, followed by two coats of a two-part epoxy, and a final coat of polyurethane.

NATIONAL PARK SERVICE | ARG CONSERVATION SERVICES, INC. | LICENSE NO. 799537 21

Image 31