01_35_91_Historic_Treatment.pdf

01 35 91 - 1 Historic Treatment Procedures

GENEVA OFFICE BUILDING EXTERIOR IMPROVEMENTS

SECTION 01 35 91

HISTORIC

TREATMENT

PROCEDURES

PART 1 - GENERAL

1.01 SUMMARY

A. Section includes general protection and treatment procedures for Project and following specific work:

1. Installation of protection done in manner that does not damage adjacent surfaces or finishes.

2. Storage and protection of existing historic materials.

3. Temporary protection of historic materials during construction.

4. Removal, cataloging, and storage of selective historic elements as required during construction.

5. Historic removal and dismantling.

B. In addition to all other requirements, all Work of this contract shall be performed under guidelines of the Secretary of the Interior's Standards for the Treatment of Historic Properties.

While Work under this Contract is in progress, protect existing building, grounds, contents, and occupants, including those on adjacent properties, whether private or public, from damage or harm.

1. It is intent of this Section that:

a. All repair and replacement materials shall match remaining historic construction in all physical and visual aspects including material, form, color, texture and workmanship, unless otherwise noted.

b. Historic materials shall be salvaged and reinstalled to greatest extent possible.

c. All Work shall be done using gentlest methods available.

d. Sound historical materials shall not be put at risk due to Work of this Contract.

1.02 DEFINITIONS

A. Artifact Log: Log form supplied by Contractor and used to catalog historic elements that are removed from building.

B. Demo and Salvage for Reinstallation or Remove and Salvage for Reinstallation: To detach items from existing construction, repair and prepare them for reuse, and reinstall them where indicated.

C. Existing to Remain or Retain: Existing items of construction that are not to be removed and that are not otherwise indicated to be removed, removed and salvaged, or removed and reinstalled.

D. Historic: Spaces, areas, rooms, surfaces, materials, finishes, and overall appearance which are important to successful preservation, rehabilitation, restoration, and reconstruction as determined by Architect. Designated historic spaces, areas, rooms, and surfaces are indicated on Drawings and scheduled in this Section.

E. Historic Elements: Those materials, finishes, components and areas identified as historic elements and as very important, important or contributing, both interior and exterior.

F. In Kind or Material In Kind: Material that matches existing materials, as much as possible, in species, cut, color, grain, and finish.

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G. Match: To blend with adjacent construction and manifest no apparent difference in material type, species, cut, form, detail, color, grain, texture, or finish; as approved by Architect.

H. Preservation: To apply measures necessary to sustain existing form, integrity, and materials of historic property. Work may include preliminary measures to protect and stabilize property.

I. Protect and Maintain: To remove deteriorating corrosion, reapply protective coatings, and install protective measures such as temporary guards; to provide least degree of intervention.

J. Reconstruct: To remove existing item, replicate damaged or missing components, and reinstall in original position.

K. Reconstruction: To reproduce in exact form and detail building, structure, or artifact as it appeared at specific period in time.

L. Refinish: To remove existing finishes to base material and apply new finish to match original, or as otherwise indicated.

M. Reinstall: To protect removed or dismantled item, repair and clean it as indicated for reuse, and reinstall it in original position, or where indicated.

N. Rehabilitation: To make possible compatible use for property through repair, alterations, and additions while preserving those portions or features that convey its historical, cultural, or architectural values.

O. Remove: Specifically for historic spaces, areas, rooms, and surfaces, term means to detach item from existing construction to limits indicated, using hand tools and hand-operated power equipment, and legally dispose of it off-site, unless indicated to be salvaged or reinstalled.

P. Repair: To stabilize, consolidate, or conserve; to retain existing materials and features while employing as little new material as possible. Repair includes patching, piecing-in, splicing, consolidating, or otherwise reinforcing or upgrading materials. Repair can also include limited replacement in kind, rehabilitation, and reconstruction, with compatible substitute materials for deteriorated or missing parts of features when there are surviving prototypes.

Q. Replace: To replicate and replace entire features with new material in kind. Replacement includes following conditions:

1. Replacement with New Materials: Includes replacement with new material when original material is not available as patterns for creating new duplicated elements.

2. Replacement with Substitute Materials: Includes replacement with compatible substitute materials. Substitute materials are not allowed, unless otherwise indicated.

R. Replicate: To reproduce in exact detail, materials, and finish, unless otherwise indicated.

S. Reproduce: To fabricate new item, accurate in detail to original, and in either same or similar material as original, unless otherwise indicated.

T. Restore: To consolidate, replicate, reproduce, repair, and refinish as required to achieve indicated results.

U. Restoration: To accurately depict form, features, and character of property as it appeared at particular period of time by means of removal of features from other periods in its history and reconstruction of missing features from restoration period.

V. Retain: To keep existing items that are not to be removed or dismantled.

W. Salvage: To protect removed or dismantled items and deliver them to Owner [ready for reuse].

1.03 REFERENCE STANDARDS

A. ANSI/ASSE A10.6 - Safety & Health Program Requirements for Demolition Operations; 2006

(R2016).

B. NFPA 241 - Standard for Safeguarding Construction, Alteration, and Demolition Operations;

2015.

C. Preservation Tech Note. Temporary Protection Number 2, “Specifying Temporary Protection of

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Historic Interiors During Construction and Repair”, National Park Service, Preservation Assistance Division, P.O. Box 37127, Washington DC 20013.

http://www.cr.nps.gov/hps/tps/technotes/PTN38/introduction.htm.

D. The Secretary of the Interior's Standards for the Treatment of Historic Properties.

1.04 ADMINISTRATIVE REQUIREMENTS

A. Coordination: Coordinate historic treatment procedures in this Section with public circulation patterns at Project site. Public circulation patterns cannot be closed off entirely, and in places can be only temporarily redirected around small areas of work. Plan and execute Work accordingly.

B. Historic Treatment Pre-construction Conference: Conduct conference at Project site.

1. General: Review methods and procedures related to historic treatment including, but not limited to, following:

a. Review and finalize historic treatment construction schedule; verify availability of materials, equipment, and facilities needed to make progress and avoid delays.

b. Review qualifications of personnel assigned to Work and assign duties.

c. Review repair and replacement areas with historic materials, material application, work sequencing, tolerances, and required clearances.

d. Review areas where existing construction is to remain and requires protection.

2. Removal and Dismantling:

a. Inspect and discuss condition of construction to be removed or dismantled.

b. Review requirements of other work that relies on substrates exposed by removal and dismantling work.

1.05 MATERIALS OWNERSHIP

A. Historic items, and similar objects including, but not limited to, cornerstones and their contents, commemorative plaques and tablets, antiques, and other items of interest or value to Owner that may be encountered during removal and dismantling work remain Owner's property.

Carefully dismantle and salvage each item or object.

1.02 SUBMITTALS

A. Construction Schedule for Historic Treatments: Indicate for entire Project following for each activity to be performed in historic spaces, areas, and rooms, and on historic surfaces:

1. Detailed sequence of historic treatment work, with starting and ending dates, coordinated with Owner's continuing operations and other known work in progress.

2. Utility Services: Indicate how long utility services will be interrupted. Coordinate shutoff, capping, and continuation of utility services.

B. Historic Treatment Program: Submit before Work begins. Describe proposed storage of any removed historic items.

C. Protection Program: Submit written plan for each phase or process including protection of surrounding materials during operations. Describe in detail materials, methods, and equipment to be used for each phase of Work. Do not proceed with any protection work until Historic Protection Program has been approved.

D. Fire-Prevention Plan: If any heat-generating or combustible tools and materials are proposed to be used, submit before Work begins.

E. Inventory of Salvaged Items: After removal or dismantling work is complete, submit list of items that have been salvaged.

F. Alternative Methods and Materials: If alternative methods and materials to those indicated are http://www.cr.nps.gov/hps/tps/technotes/PTN38/introduction.htm

01 35 91 - 4 Historic Treatment Procedures proposed for any phase of work, provide written description including evidence of successful use on other, comparable projects, and program of testing to demonstrate effectiveness for use on this Project.

1.03 QUALITY ASSURANCE

A. Historic Treatment Specialist Qualifications: Experienced firm regularly engaged in historic treatments similar in nature, materials, design, and extent to this Work as specified in each section, and that has completed minimum of five recent projects with record of successful in-service performance that demonstrate firm's qualifications to perform this Work.

1. Field Supervisor Qualifications: Full-time supervisors experienced in historic treatment work similar in nature, material, design, and extent to that indicated for this Project.

Supervisors shall be on Project site during times that historic treatment work is in progress.

Supervisors shall not be changed during Project except for causes beyond control of specialist firm.

2. Worker Qualification: Persons who are experienced in historic treatment work of types they will be performing.

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B. Historic Treatment Program: Prepare written plan for historic treatment for whole Project, including each phase or process and protection of surrounding materials during operations.

Describe in detail materials, methods, and equipment to be used for each phase of Work. Show compliance with indicated methods and procedures specified in this and other sections.

C. Fire-Prevention Plan: Prepare written plan for preventing fires during Work, including placement of fire extinguishers, fire blankets, rag buckets, and other fire-prevention devices during each phase or process. Coordinate plan with Owner's fire-protection equipment and requirements. Include each fire watch's training, duties, and authority to enforce fire safety.

D. Contractor is hereby directed to recognize value and significance of building and exercise special care during Work to ensure that existing building, its details, materials and finishes which are to remain are not damaged by Work being performed.

E. Protect all existing materials and components to remain in place throughout duration of construction. Extent of protection is to cover all historic elements to remain that are in vicinity of construction activities, or may be harmed by movement of materials through building and Project site, whether specifically called out on Drawings, or not. Provide any additional protection required to prevent soiling and damage to existing finishes and elements to remain.

All questionable protection requirements should be identified for Owner's Representative's Architect’s review. In event of damage, such items shall be repaired or replaced by Contractor at his expense, to satisfaction of Architect and Owner.

F. Regulatory Requirements: Comply with notification regulations of authorities having jurisdiction before beginning removal and dismantling work. Comply with hauling and disposal regulations of authorities having jurisdiction.

1.04 STORAGE AND PROTECTION OF HISTORIC MATERIALS

A. Salvaged Historic Materials:

1. Clean only loose debris from salvaged historic items unless more extensive cleaning is indicated.

2. Pack or crate items after cleaning; cushion against damage during handling. Label contents of containers.

3. Store items in secure area until delivery to Owner.

B. Historic Materials for Reinstallation:

1. Repair and clean historic items as indicated and to functional condition for reuse.

2. Pack or crate items after cleaning and repairing; cushion against damage during handling.

Label contents of containers.

3. Reinstall items in locations indicated. Comply with installation requirements for new materials and equipment unless otherwise indicated. Provide connections, supports, and miscellaneous materials to make item functional for use indicated.

C. Storage and Protection: When taken from their existing locations, catalog and store historic items in a secure, weathertight location. Identify each item with non-permanent mark to document its original location. Indicate original locations on plans elevations, sections, or photographs by annotating identifying marks

D. Protection of historic elements shall remain in place for duration of entire Project, unless determined otherwise by Owner.

1.05 FIELD CONDITIONS

A. Coordinate performance of Work of this Section with related or adjacent work. Removal and protection of items shall be completed prior to commencement of demolition or new construction activities in each area. At minimum, install protection in its entirety for given area prior to commencement of any demolition activities in that area.

B. Notify Architect of discrepancies between existing conditions and Drawings before proceeding with removal and dismantling work.

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PART 2 PRODUCTS

2.01 PROTECTION MATERIALS

A. Polyethylene Sheets: 4 mil.

B. Lumber: Species to be selected by Contractor, sizes to fit field conditions. All lumber to be fire retardant.

C. Plywood: 1/2, 3/4 or 1-inch fire retardant, as required.

D. Soft Fiberboard:

1. Homasote Company, West Trenton, NJ. http://www.homasote.com/.

a. 1/2 inch Homasote 440.

b. 1/2 inch Homasote NCFR for applications requiring fire ratings.

E. Neoprene: 1/4 or 1/2 inch strips, stock lengths.

F. Ethafoam: 1/2 inch thickness with density of 2.3 to 3.3 pounds/cubic foot G. Semi-rigid Polyurethane Foam Sheets: 2 and 4 inches thick, as required.

H. Brown Paper: Kraft paper.

I. Non-abrasive glassine paper.

J. Preservation Tape: 3M Scotch White Preservation Sealing Tape, number 4811.

K. Zip wall poles: ZipWall.

L. Sealant: Removable acrylic sealant.

M. Accessories: Fasteners, nails, screws, bolts, anchors or other devices required to complete installation, sizes as required. No fasteners are to be used on any wall or floor surfaces.

PART 3 EXECUTION

3.01 HISTORIC REMOVAL AND DISMANTLING EQUIPMENT

A. Removal and Dismantling Equipment: Use only hand-held tools except as follows or unless otherwise approved by Owner's Representative on case-by-case basis:

1. Light jackhammers are allowed subject to approval.

2. Large air hammers are not permitted.

3.02 EXAMINATION

A. Preparation for Removal and Dismantling: Examine construction to be removed or dismantled to determine best methods to safely and effectively perform removal and dismantling work.

Examine adjacent work to determine what protective measures will be necessary. Make explorations, probes, and inquiries as necessary to determine condition of construction to be removed or dismantled and location of utilities and services to remain that may be hidden by construction that is to be removed or dismantled.

1. Verify that affected utilities have been disconnected and capped.

2. Inventory and record condition of items to be removed and dismantled for reinstallation or salvage.

3. Before removal or dismantling of existing building elements that will be reproduced or duplicated in final Work, make permanent record of measurements, materials, and construction details required to make exact reproduction.

B. Perform surveys as Work progresses to detect hazards resulting from historic treatment procedures.

3.03 PROTECTION, GENERAL

A. Ensure that supervisory personnel are on-site and on duty when historic treatment work begins and during its progress.

http://www.homasote.com/

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B. Protect persons, motor vehicles, surrounding surfaces of building, building site, plants, and surrounding buildings from harm resulting from historic treatment procedures.

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1. Use only proven protection methods, appropriate to each area and surface being protected.

2. Provide barricades, barriers, and temporary directional signage to exclude public from areas where historic treatment work is being performed.

3. Contain dust and debris generated by removal and dismantling work and prevent it from reaching public or adjacent surfaces.

4. Provide shoring, bracing, and supports as necessary. Do not overload structural elements.

5. Protect floors and other surfaces along haul routes from damage, wear, and staining.

C. Protect landscape work adjacent to or within work areas as follows:

1. Provide barriers to protect tree trunks.

2. Bind spreading shrubs.

3. Set scaffolding and ladder legs away from plants.

D. Temporary Protection of Historic Materials:

1. Protect existing historic materials with temporary protections and construction.

2. Do not attach temporary protection to historic surfaces except as indicated as part of historic treatment program and approved by Owner's Representative.

E. Comply with each product manufacturer's written instructions for protections and precautions.

Protect against adverse effects of products and procedures on people and adjacent materials, components, and vegetation.

F. Utility and Communications Services:

1. Notify Owner and authorities having jurisdiction, and entities owning or controlling wires, conduits, pipes, and other services affected by historic treatment work before commencing operations.

2. Disconnect and cap pipes and services as required by authorities having jurisdiction, as required for historic treatment work.

3. Maintain existing services unless otherwise indicated; keep in service, and protect against damage during operations. Provide temporary services during interruptions to existing utilities.

G. Existing Drains: Prior to start of Work or any cleaning operations, test drains and other water removal systems to ensure that drains and systems are functioning properly. Notify Owner's Representative immediately of inadequate drainage or blockage. Do not begin work in area until drainage system is in working order.

1. Protect drains from pollutants. Block drains or filter out sediments, allowing only clean water to pass.

H. Existing Roofing: Prior to start of Work in area, install roofing protection.

3.04 PROTECTION OF HISTORIC ELEMENTS AND MATERIALS

A. Install protection in its entirety before commencement of demolition or other work that may harm historic elements.

B. Protect all historic elements to remain in place during construction that may be damaged by construction activities. In event of new damage, notify Owner immediately as to nature and extent of damage and proposed method for repair. Contractor shall be responsible for repairs and replacement of newly damaged items to satisfaction of Owner, at no additional cost to Owner.

C. Do not attach temporary protection materials directly to historic elements.

D. Secure protection adequately so as to maintain safe environment for workers and other individuals using building throughout duration of Project. Conduct operations to prevent injury to adjacent buildings, structures, other facilities, and persons.

E. Protection is to be constructed primarily of wood 2 by 4 inch framing members to box out elements to be protected, or to construct barriers in front of elements to be protected.

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F. Protection may be required to remain in place for duration of Project. Install materials to provide protection throughout duration of Project. Protection may have to be removed during Project for

01 35 91 - 10 Historic Treatment Procedures access to protected elements, etc. If protection is temporarily removed, reinstall after work is complete and maintain protection throughout duration of Project.

G. Extent of protection covers all historic elements that will remain during construction, whether specifically called out on Drawings or not. Temporary protection may be required in areas to perform specific work activities.

H. All protection assemblies shall be self-supporting and self-bracing. Protection assemblies may be secured to floor protection as long as fasteners do not penetrate through plywood layer.

I. Installation of Protection:

1. Floors, all materials in primary path of construction travel. Defined as those areas that will experience high level of traffic with finish materials that require high level of protection care.

a. Vacuum floor surface of all loose dust and debris. Cover entire pathway surface with

Kraft paper, then with 1/2 inch fiberboard covered by 1 sheet of polyethylene and 1/2 inch plywood. Fasten edges to prevent slippage. Tape all polyethylene edges to create watertight seal. Stagger edges of materials with joints below to provide uniform flush surface.

2. Light Fixtures

a. Wrap light fixtures in situ with polyethylene sheet. Tape sheet in place. Tape must not touch light fixture.

J. Salvaged Historic Materials:

1. Identify salvaged items to Owner before removal to review handling procedures for each item.

2. Catalog all salvage elements that have been removed on Artifact Log and Location Drawing. Only one master Artifact Log and Location Drawing shall be prepared to avoid duplicate cataloguing.

3. Clean salvaged historic items. Avoid overcleaning to prevent damage to existing materials during cleaning.

4. Repair historic items to be reinstalled to functional condition adequate for intended reuse.

5. Pack or crate items after repair/cleaning. Identify contents of containers.

6. Protect items from damage during transport and storage.

7. Store items not to be reused or reinstalled in secure area until delivery to Owner.

8. Store items to be reinstalled in secure area until needed.

9. Comply with installation requirements for new materials and equipment

10. Do not dispose of items removed from existing construction without prior written consent of

Owner.

K. Existing Historic Materials to Remain: Protect construction indicated to remain against damage and soiling during historic treatment.

L. Storage and Protection: When removed from their existing location, store historic materials in a secure, weathertight location.

1. Verify condition of storage area to ensure that there is adequate capacity and access to store and retrieve salvage elements.

2. Identify removed items with inconspicuous mark indicating their original location.

3. Store all salvage elements in neat, orderly fashion to allow for access and retrieval.

3.05 PROTECTION DURING USE OF HEAT-GENERATING EQUIPMENT

A. General: Follow fire-prevention plan and following.

1. Comply with NFPA 241 requirements unless otherwise indicated. Perform duties entitled "Owner's Responsibility for Fire Protection."

2. Remove and keep area free of combustibles including, rubbish, paper, waste, and chemicals, except to degree necessary for immediate work.

a. If combustible material cannot be removed, provide fire blankets to cover such materials.

3. Prohibit smoking by all persons within Project work and staging areas except where

01 35 91 - 11 Historic Treatment Procedures specifically designated for smoking.

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B. Heat-Generating Equipment and Combustible Materials: Comply with following procedures while performing work with heat-generating equipment or highly combustible materials, including welding, torch-cutting, soldering, brazing, paint removal with heat, or other operations where open flames or implements utilizing high heat or combustible solvents and chemicals are anticipated:

1. Obtain Owner's approval for operations involving use of open-flame, welding or other high-heat equipment. Use of open-flame equipment is not permitted. Notify Owner at least 72 hours before each occurrence, indicating location of such work.

2. As far as practical, restrict heat-generating equipment to shop areas or outside building.

3. Do not perform work with heat-generating equipment in or near rooms or in areas where flammable liquids or explosive vapors are present or thought to be present. Use combustible gas indicator test to ensure that area is safe.

4. Use fireproof baffles to prevent flames, sparks, hot gases, or other high-temperature material from reaching surrounding combustible material.

5. Prevent spread of sparks and particles of hot metal through open windows, doors, holes, and cracks in floors, walls, ceilings, roofs, and other openings.

6. Fire Watch: Before working with heat-generating equipment or highly combustible materials, station personnel to serve as fire watch at each location where such work is performed. Fire-watch personnel shall have authority to enforce fire safety. Station fire watch according to NFPA 51B, NFPA 241, and as follows.

a. Train each fire watch in proper operation of fire-control equipment and alarms.

b. Prohibit fire-watch personnel from other work that would be distraction from fire-watch duties.

c. Cease work with heat-generating equipment whenever fire-watch personnel are not present.

d. Have fire watch perform final fire-safety inspection each day beginning no sooner than

30 minutes after conclusion of work at each area of Project site to detect hidden or smoldering fires and to ensure that proper fire-prevention is maintained.

e. Maintain fire-watch personnel at each area of Project site until 60 minutes after conclusion of daily work.

C. Fire Extinguishers, Fire Blankets, and Rag Buckets: Maintain fire extinguishers, fire blankets, and rag buckets for disposal of rags with combustible liquids. Maintain each as suitable for type of fire risk in each work area. Ensure that nearby personnel and fire watch are trained in fire-extinguisher and blanket operation.

3.06 GENERAL HISTORIC TREATMENT

A. Ensure that supervisory personnel are present when historic treatment work begins and during its progress.

B. Halt process of deterioration and stabilize conditions, unless otherwise indicated. Perform Work as indicated on Drawings. Follow procedures in subparagraphs below and procedures approved in historic treatment program.

1. Retain as much existing material as possible; repair and consolidate rather than replace.

2. Use additional material or structure to reinforce, strengthen, prop, tie, and support existing material or structure.

3. Use reversible processes wherever possible.

4. Use historically accurate repair and replacement materials and techniques unless otherwise indicated.

C. Obtain Owner's Representative's review and written approval in form of Constructive Change

Directive or Supplemental Instruction before making changes or additions to construction or removing historic materials.

D. Notify Owner's Representative of visible changes in integrity of material or components whether due to environmental causes including biological attack, UV degradation or moisture; or due to structural defects including cracks, movement, or distortion. Do not proceed with Work in question until directed by Owner's Representative.

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E. Identify new and replacement materials and features with permanent marks hidden in completed work to distinguish them from original materials. Record legend of identification marks and locations of items on record Drawings.

3.07 HISTORIC REMOVAL AND DISMANTLING

A. General: Have removal and dismantling work performed by qualified historic specialist. Ensure that historic removal and dismantling specialist's field supervisors are present when removal and dismantling work begins and during its progress.

B. Perform Work according to historic treatment program.

1. Remove items whole whenever possible. Where cuts are required, make cuts cleanly and with proper tool at logical break points.

2. Remove all nails from wood elements from backside. Drive nails through or pull from back so that head does not splinter finish face.

3. Do not operate air compressors inside building, unless approved by Owner's

Representative in each case.

4. Do not drill or cut columns, beams, joints, girders, structural slabs, or other structural supporting elements, without having Contractor's professional engineer's written approval for each location before such work is begun.

C. Removing and Dismantling Items On or Near Historic Surfaces:

1. Exercise extreme care in removing elements for salvage and materials attached to historic elements that are to remain.

2. Use only dismantling tools and procedures within 12 inches (300 mm) of historic surface.

Do not use pry bars. Protect historic surface from contact with or damage by tools.

3. Unfasten items to be removed, in opposite order from which they were installed.

4. Support each item as it becomes loosened to prevent stress and damage to historic surface.

5. Dismantle anchorages.

6. Unbolt bolted connections; leave embedded connector undisturbed and in place for later element reinstallation.

7. Unscrew screwed connections; leave embedded connector undisturbed and in place for later element reinstallation.

8. Do not pry apart members whose finish will be damaged by chipping, crazing or cracking, or whose structural integrity will be compromised.

D. Loose Plaster: Identify loose plaster and separate it from its substrate by tapping with hammer and prying with chisel or screwdriver. Do not use pry bars. Leave sound, firmly adhered plaster in place. Do not damage, remove, or dismantle historic plasterwork except where indicated or where it is immediate hazard to personnel and as approved by Owner's Representative.

E. Light Fixtures: Remove light fixtures in whole units. Remove and salvage all fastening and/or mounting hardware. Protect existing wiring if wiring will be reused.

3.08 CATALOGING OF SALVAGE ELEMENTS

A. General: Label elements in manner to permit reinstallation in its original location and configuration, or in new location.

B. Numbering and Cataloging: Each item removed for salvage shall be given unique catalog number that is to be permanently marked on element and listed on Artifact Log. Label elements on backside or in another obscure location.

3.09 STORAGE

A. Store metals and all climate sensitive materials in clean, secure location with temperature between 65 degrees F and 75 degrees F and relative humidity between 50% and 60%.

B. Do not cover wood elements entirely, allow air to circulate around wood elements to prevent growth of mold or mildew.

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C. Organize elements so that they are readily retrievable. Store like elements together.

3.10 REINSTALLATION

A. Reinstall salvage elements in their original location, or in their new location.

B. Reinstall elements in accordance with approved Shop Drawings.

C. Contractor is responsible for proper inventorying and distribution to appropriate subcontractors of salvaged material for reinstallation.

D. Re-use original fastener locations and nail or screw holes. Strengthen or consolidate original holes as needed.

END OF SECTION

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