Attachment 1 - Techincal Specifications.pdf

United States Embassy to the

Holy See

Rome, Italy

MEL SEMBLER BUILDING OFFICE FLOOR RENOVATION

Facility Management

03/18/2025

SENSITIVE BUT UNCLASSIFIED

1 CONTENTS

2 FOREWORDS

3 GENERAL

3.1 DEFINITIONS

3.2 SAFETY STANDARS

3.3 DESCRIPTION OF WORK

3.4 LIMITATIONS

3.5 MATERIAL EQUIVALENTS

3.6 TENDER DOCUMENTS

3.7 SMOKING POLICY

4 SOLICITATION CHARACTERISTICS

4.1 IMPLEMENTATION PHASE

4.2 SUBMITTALS DESCRIPTION (SD)

4.3 CONCLUSION PHASE

4.4 PERFORMANCE TIME AND PENALTIES FOR DELAYS

4.5 WORK PROGRESS

4.6 PARKING

5 SPECIFICATIONS

5.1 WOODEN FLOOR / PARQUET

5.1.1 REFERENCES

5.1.2 PRODUCTS

5.1.3 EXECUTION

5.2 MAINTENANCE PLAN

6 MATERIAL SHEETS

2 FOREWORDS

United States Embassy to the Holy See in Rome, needs to award a contract for replace carpet tiles with new wooden floor inside sensitive offices on the mezzanine floor of the Mel Sembler Building in Via Sallustiana, 49.

3 GENERAL

The area interested by the work is on the mezzanine floor of Mel Sembler building in Rome, located in Via Sallustiana, 49.

• The scope of the work is to remove the existing carpet tiles and install new hardwood flooring.

• Install new baseboard all around the rooms interested by the project.

• Touch-ups areas damaged during the work are in the scope.

• Will be Contractor’s responsibility to take care of the height below the existing doors to allow the correct opening after wooden floor installation.

• The Contractor shall supply all the material and equipment, skilled and unskilled labor, technical supervision, as well as logistic and administrative support. The Contractor shall also supply all accessory services such as: transportation, leasing, equipment and tools, disposal of debris, cleaning the work area and anything else necessary to complete the project in compliance with the present specifications.

• The Contractor shall provide a Safety Plan designated for this project.

• Maximum attention is required for the safety of personnel at work on the site. The workers shall operate in compliance with standard codes. Since the work site consists of crucial technical installations, temporary safety protection measures towards third parties and workers shall be installed with care and attention, especially for the hours when work site is closed.

• The Contractor will be responsible for submitting, for approval by the COR, samples of materials and supplies to be used.

• Will be Contractor's responsibility to verify all the quantities and dimensions.

3.1 DEFINITIONS

A glossary of terms and relative equivalents used in the drawing up of the tender documents are indicated hereunder:

Client, Administration, Project Supervisor, COR, CO: all these denominations identify the technical administrative staff, predisposed to handle the contract on behalf of the Embassy of the United States of America.

Contracting Company, Contractor: all these denominations identify the subject that undertakes to carry out the work described in the contract.

Contract, Purchase Order (P.O.), Work Order: these terms identify the contract document with which the project is awarded. The Client at his indisputable judgement shall make the formal selection of the different types of documents.

For safety plan purposes, the figures of the Embassy that are key elements in the definition of roles and responsibility in the safety plan are:

"RUP Responsabile Unico del Procedimento" The Contracting Officer Representative of Tri- Missions Rome, whose name appears in the contract or Purchase Order.

"Committente" The Senior Facility Manager of Tri-Missions Rome, whose name shall be communicated after the award.

"Responsabile del Servizio Prevenzione E Protezione - RSPP" and "Responsabile Dei Lavori" The POSHO (Post Safety and Health Officer) of the Tri-Mission Rome, whose name shall be communicated after award. The POSHO shall perform his/her duties also using an A/POSHO part of his/her staff.

"Direttore dei Lavori" The COR nominated by the Contracting Officer after award.

3.2 SAFETY STANDARS

The contractor must fulfill all the safety legal requirements according to the D.Lgs. 81/2008 Testo Unico sulla Salute e Sicurezza nei Luoghi di Lavoro. The objective is to avoid or in any case to reduce to the minimum the workers’ exposure to risks associated with work activities.

Therefore, the contractor is expected to deliver the Risk Assessment Document (Documento Valutazione Rischi, DVR) or the Operational Safety Plan (Piano Operativo di Sicurezza, POS) when required, to provide trainings to the laborers, to supply individual and collective protective equipment and to comply with all the other requirements disciplined by the D.Lgs.

81/08.

In the solicitation process set up by the Contracting Officer (RUP), to verify the professional technical suitability, the Embassy asks the offerors a statement on the average annual workforce and on collective bargaining agreement (Contratto di lavoro) applied to employees, the details of the workers' complaints made to INPS, INAIL and Casse Edili.

In the case of private works, no permission from construction and the amount of the work less than € 100,000, the verification of the suitability of the company is simplified and is considered satisfied through the presentation by the company of the certificate of registration in the Chamber of Commerce, Industry e Handicraft and the Single Document of Regularity Contribution (DURC), accompanied by self-certification in order to meet the other requirements set out in Annex XVII of the Local Consolidated Law on Finance.

After the tender closure, the company entitled to the work must submit a detailed Operational Safety Plan (Piano Operativo di Sicurezza) at least 15 days before starting the operations.

The safety plan submitted must clearly identify the professional figures as follows:

"DIRETTORE TECNICO DI CANTIERE" The construction site technical director is the person who manages for the contractor the construction site. This role can be played by both an employee of the company and by an external professional, with a specific and formal assignment. The figure of the technical director of the construction site must not be confused with that of the construction manager, who is instead appointed by the client and checks that the works are carried out in accordance with the provisions of project and related specifications.

"PREPOSTO" an individual who is identified for the functions he/she performs and is therefore comparable to what with other terms is indicated as site manager, workshop manager, department head, office manager, etc. He/she must also be trained to be able to perform the functions attributed to him, as indicated in art. 19 letter g) of paragraph 1 and according to the objectives set by art. 37 of D.Lgs. 81/08. The PREPOSTO, insures continuously and effectively that the workers:

1) follow the safety regulations imparted and outlined in the safety plan.

2) use the required personal protective equipment (PPE).

3) promptly report to the employer or manager any deficiencies in the procedures, tools, personal protective equipment, and persistent protocols disregards.

3.3 DESCRIPTION OF WORK

The aim of the work is to install new wooden floor (approx. 130 sqm), after removing carpet tiles flooring, and replace baseboard (approx. 110 lm).

Removal of existing carpet floor tiles throughout entire rooms, below the faincoils included.

Loading and transport to authorized landfills and / or plants including loading, round trip and unloading including landfill charges at authorized facilities

Moving furniture inside all rooms, and subsequently relocation after works is part of the scope.

All material shall be scanned in a specific day, scheduled with C.O.R.

Due to critical underneath floor, the space below the doors is very thin. All measurement shall take by Contractor and will be his responsibility.

Remove current baseboard along all permiter of the rooms.

After surface preparation, spread the glue on the surface of the screed, distributing the glue evenly without creating air bubbles between the screed and the wooden floor. Dose the optimal amount of glue recommended for gluing of pre-finished wood flooring.

Supply and install new solid wood flooring (approx. 130 sqm) of three-layer American walnut:

first layer in 3.5mm solid walnut, the second layer is in fir wood. The third layer is in rotary-cut veneer. Four-sided beveling. Brushed, UV matte oil varnished. Tongue/groove on all four sides. Commercial first grade(classic). Installation of floating parquet with D3 vinyl glue between the tongues. Where the new floor result too hight, will be Contractor’s responsibility to mill it. All samples shall be submitted to Embassy C.O.R.

Supply and install new teak veneered baseboards, installed with sealing (approx. 110 lm). All samples shall be submitted to Embassy C.O.R.

Anything damaged is Contractor’s responsibility.

Thresholds to connect the different quotes between the rooms are included.

A location to store the furnitures will be identified.

All parts fix in the rooms shall be covered and doors shall be isolated to avoid damage and dust, fan coils included.

All the switches present along the baseboard way, shall cut in place. Likewise, the pieces below the windows and the faincoils.

At the end of floor and baseboard installation, the Contractor shall provide to touch-ups all parts who seems damaged during the works.

All the material should be of primary brands and sample should be submitted to the C.O.R.

for approval. All sample should be submitted within 15 days from the notice to proceed.

All the debris from the work shall be loaded and disposed outside the building on the very same day, and only a small internal area will be set up to deposit the material to be installed (previously scanned).

All the material shall to submitted to Embassy Superintendent (C.O.R.) for approval.

The supply of the materials, as listed in the bill of quantities, shall be fully charged to the Contractor.

A percentage of 4% of all materials of the project is included in this solicitation and shall remain with the Embassy to allow the future installation.

The Contractor shall provide professional cleaning of the premises at final completion of the work.

3.4 LIMITATIONS

The accomplishment of the project shall be circumscribed to the specific requests described in the Tender Documents.

3.5 MATERIAL EQUIVALENTS

The contractor shall verify and ensure that all the materials supplied are new and without defects and that their use and/or installation is carried out using the best techniques and fully respecting the instructions supplied by the manufacturers.

Special parts shall be manufactured solely by workshops that are highly qualified in that specific sector.

The makes indicated in this SOW (Scope of Work) are intended as a point of reference and therefore, the words or approved equivalent are implicit.

Therefore, the makes and products listed are to be deemed equivalent to each other.

Different selections implemented by the Contractor shall be approved in advance by the COR, after submission of samples and technical cards.

Special products must be processed only to workshops highly qualified in the field of specific realization.

Refer to datasheets attached to this document.

WOODEN FLOOR

Three-layer American walnut wooden floor. First layer in 3.5mm solid walnut. The second layer is in fir wood. The third layer is in rotary-cut veneer. Four-sided beveling. Brushed, UV matte oil varnished. Tongue/groove on all four sides. Commercial first grade(classic).

BASEBOARD

Teak veneered baseboards with sealing

VINIL GLUE

D3 Vinil Glue: Water-resistant glue, resistant to strong humidity and brief exposure to running water. (classification D3)

3.6 TENDER DOCUMENTS

The following documents shall form an integral part of the contract:

The present Special Tender Document

General Conditions in use by the Client

Drawings

Bill of quantities

3.7 SMOKING POLICY

U.S. Tri-Mission Rome Employee Smoking Policy

Tri-Mission services are performed by direct-hire LES. and Embassy contractors.

This smoking policy has been established for the following reasons:

To protect individuals from second-hand smoking

To avoid setting off alarms and smoke detectors

To maintain a clean workplace

To avoid fires from discarded cigarettes

Any LES or Embassy Contractor working in/on a Government Owned residential compound/property or in a owned or leased residence will follow the rules listed below:

No smoking is allowed on the compound or inside any government-owned residence outside of the dedicated areas.

No smoking is allowed inside a government owned or leased residence.

No smoking is allowed on terraces, in common areas, or parking lots.

No smoking is allowed in any enclosed spaces.

Smoking is allowed outside the gates of a compound or in dedicated areas only. Any person found to be in violation of the above rules will be escorted off the property immediately, reported to the Facility Manager and or GSO, and face immediate disciplinary action.

For questions, concerns, or reporting of a violation please call Facility Management or GSO at X2132 or RomeFacilMaint-DL@state.gov.

4 SOLICITATION CHARACTERISTICS

4.1 IMPLEMENTATION PHASE

The implementation phase starts with the Notice to proceed (NTP).

No work shall be performed before the submission of the shop drawings and relevant approval.

No materials shall be installed prior the relevant submission and approval.

Normal working hours are from 08:30 up to 17:30 during weekdays. Any work to be carried out after normal working hours or during the week-end shall be agreed upon in advance with the COR in order to obtain all the necessary authorizations and approvals.

Due to sensitive offices, it would be possible to perform the works during weekend and/or after working hours.

Demolitions, perforations and other high noise operations shall be carried out no earlier than

09.30. The quiet rule shall apply even during the time 12.30 to 15.30, during work days.

The work-site shall be kept as clean as possible.

Areas for storing material shall be agreed upon, together with the COR, based on logistical-operative criteria.

Any temporary interruptions of utilities shall be scheduled at least 5 days in advance and shall be subject to approval from the COR.

Tests on the correct operation of the systems and consignment of parts of completed work shall be carried out in the presence of the person designated by the contractor and someone authorized by the Embassy. The contractor shall be responsible for drawing up the necessary delivery reports for the work and systems carried out and shall be subject to verification and acceptance by the COR.

4.2 SUBMITTALS DESCRIPTION (SD)

Submittal requirements are specified in the technical sections. Examples and descriptions of submittals identified by the Submittal Description (SD) numbers and titles follow:

• SD-01 Preconstruction Submittals

Preconstruction Submittals include schedules and a tabular list of locations, features, and other pertinent information regarding products, materials, equipment, or components to be used in the work.

• SD-02 Shop Drawings

Drawings, diagrams, and schedules specifically prepared to illustrate some portions of the work are requested by the cor. Diagrams and instructions from a manufacturer or fabricator for use in producing the product and as aids to the Contractor for integrating the product or system into the project.

Drawings prepared by or for the Contractor to show how multiple systems and interdisciplinary work will be coordinated.

• SD-03 Product Data

Catalog cuts, illustrations, schedules, diagrams, performance charts, instructions and brochures illustrating size, physical appearance and other characteristics of materials, systems or equipment for some portion of the work.

Samples of warranty language when the contract requires extended product warranties.

• SD-04 Samples

Fabricated or unfabricated physical examples of materials, equipment or workmanship that illustrate functional and aesthetic characteristics of a material or product and establish standards by which the work can be judged. Requested by the the COR.

Color samples from the manufacturer's standard line (or custom color samples if specified) to be used in selecting or approving colors for the project.

Field samples and mock-ups constructed on the project site establish standards ensuring work can be judged. Includes assemblies or portions of assemblies that are to be incorporated into the project and those that will be removed at conclusion of the work.

• SD-05 Design Data

Design calculations, mix designs, analyses or other data pertaining to a part of work.

• SD-06 Certificates

Statements printed on the manufacturer's letterhead and signed by responsible officials of manufacturer of product, system or material attesting that the product, system, or material meets specification requirements. Must be dated after award of project contract and clearly name the project.

Document required of Contractor, or of a manufacturer, supplier, installer, or Subcontractor through Contractor. The document purpose is to further promote the orderly progression of a portion of the work by documenting procedures, acceptability of methods, or personnel qualifications.

Confined space entry permits

Text of posted operating instructions

Material Testing

• SD-07 Manufacturer's Instructions

Preprinted material describing installation of a product, system, or material, including special notices and (SDS) concerning impedances, hazards, and safety precautions.

• SD-08 Operation and Maintenance Data

Data provided by the manufacturer, or the system provider, including manufacturer's help and product line documentation, necessary to maintain and install equipment, for operating and maintenance use by facility personnel.

Data required by operating and maintenance personnel for the safe and efficient operation, maintenance, and repair of the item.

Data incorporated in an operations and maintenance manual or control system.

• SD-09 Closeout Submittals

Documentation to record compliance with technical or administrative requirements or to establish an administrative mechanism.

Submittals required for Guiding Principal Validation (GPV) or Third-Party Certification

Special requirements necessary to properly close out a construction contract. For example, Record Drawings and as-built drawings. Also, submittal requirements necessary to properly close out a major phase of construction on a multi-phase contract.

Approving Authority

Office or designated person authorized to approve the submittal.

4.3 CONCLUSION PHASE

At the completion of the works, a final inspection inspection will be conducted by the representatives of the Contracting Company and the C.O.R. to verify the correctness of execution, the compliance with the requirements of the technical specifications and the full functionality of the works contracted and carried out, in their entirety.

Upon completion of the work and acceptance of by the C.O.R. of what has been achieved, the Contracting Company must deliver the following documentation to the Customer's Technical Office:

- Detailed as-built drawings of the works, both at an architectural/structural and various systems.

- Technical data sheets of the most significant materials used for the realization, with the list of the contact details of the sales warehouses of local suppliers.

- Certifications of conformity and testing of materials subject to certification carried out by the manufacturing companies and the guarantee of their correct installation on site by the Contracting Company for what may be pertinent to the realizations and for what is provided by the legal requirements.

4.4 PERFORMANCE TIME AND PENALTIES FOR DELAYS

The contract performance time and the methods with which these times will be calculated are fully described in the solicitation package and here listed for convenience.

The Registry of Submission, at the following of this document, shall, (but shall not be limited to), indicate the kind of material samples and the number of them for selection and approval by the COR.

Period of time the complete execution of the project, from mobilization to final cleaning:

20 calendar days

Penalties for delays in completing the project are those described in the tender documents.

4.5 WORK PROGRESS

The Administration reserves in any case the right to order the execution of a specific work within a predetermined period or to order the execution of the works in the way it deems most convenient, especially in relation to the needs dependent on the execution of works and the delivery of supplies excluded from the contract, without the Contractor being able to refuse or make it the subject of a request for special compensation.

The Contractor will submit to the management of the works for approval, before the start of the works, the detailed operational program of the works and the related amounts to which it will comply in the execution of the works, in harmony with the program referred to in Law 10-12-1981, n. 741 in the cases contemplated.

4.6 PARKING

No parking is allowed inside the site. The Contractor's vehicles shall be allowed to enter only for loading and unloading materials.

Loading and unloading operations shall be carried out using only one vehicle at a time.

Consequently, during the accomplishment of the project the Contractor shall ensure that its vehicles are parked at its own expense outside the Government property.

5 SPECIFICATIONS

5.1 WOODEN FLOOR / PARQUET

5.1.1 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

EUROPEAN STANDARDS – EUROPEAN COMMITTEE FOR STANDARDIZATION AND NATIONAL

LAWS

• UNI 11265:2015 Wood and/or wood based floorings and claddings - Installation - Tasks, responsibilities and contractual indications

• UNI 11368:2021 Wood flooring and parquet - Installation - Criteria and methods of assessment of layed flooring, after installation and at the time of the flooring delivery

• UNI 11864:2022 Building adhesives - Adhesives for bonding parquet to subfloor - Silylated adhesives, thermal stability test - Test method and requirements

• EN 14342:2013 Wood flooring and parquet - Characteristics, evaluation of conformity and marking

• EN 13488:2002 Wood flooring - Mosaic parquet elements

• EN 14354:2017 Wood-based panels - Wood veneer floor coverings

• EN 14762:2006 Wood flooring - Sampling procedures for evaluation of conformity

• EN 1533:2010 Wood flooring - Determination of bending strength under static load - Test methods

• EN 13489:2017 Wood-flooring and parquet - Multi-layer parquet elements

• EN 13756:2018 Wood flooring and parquet - Terminology

• EN ISO 17178:2020 Adhesives - Adhesives for bonding parquet to subfloor - Test methods and minimum requirements (ISO 17178:2013)

• ISO 17178:2013 Adhesives - Adhesives for bonding parquet to subfloor - Test methods and minimum requirements

• CEN/TS 15717:2008 Parquet flooring - General guideline for installation

• EC 1 ; 2-2018 UNI EN 13756:2018 Wood flooring and parquet – Terminology

• UNI EN 17456:2021 Wood flooring and parquet - Determination of top layer delamination of multilayer elements - Test method

• UNI EN 350:2016 Durability of wood and wood-based products - Testing and classification of the durability to biological agents of wood and wood-based materials

• UNI EN 975-2:2005 Sawn timber - Appearance grading of hardwoods - Part 2: Poplars

• UNI EN 16929:2019 Test methods - Timber floors - Determination of vibration properties

• UNI EN 17668:2023 Adhesives for floor coverings - Preparation of adhesive application

- Test methods for the determination of corresponding humidity of mineral substrates

• UNI EN 17618:2022 Adhesives - Wood-to-wood adhesive bonds for non-structural applications - Determination of shear strength by compressive loading

• UNI EN ISO 17178:2020 Adhesives - Adhesives for bonding parquet to subfloor - Test methods and minimum requirements

• ISO 3398:1977 Broadleaved wood raw parquet blocks - Classification of oak parquet blocks

• ISO 3399:1976 Broadleaved wood raw parquet blocks - Classification of beech parquet blocks

• ISO 5323:2019 Wood flooring and parquet – Vocabulary

5.1.1.1 Submittal

The following designation are for Contractor Quality Control Approval Submit the following in accordance with referred section

SD-03 Product Data

Illustrations

Instructions and brochures

Illustrating size, SD-04 Samples

Fabricated or unfabricated physical examples of materials.

Wooden floor sample

Equipment or workmanship

Color and shape samples from the manufacturer's standard line to be used in selecting or approving colors for the project.

SD-06 Certificates

Applicator qualification for wooden floor

Fireproof and soundproofing adhesive

Material Testing

SD-07 Manufacturer's Instructions

Application Instructions

Mixing Manufacturer's Safety

Data Sheets

SD-08 Operation and Maintenance Data

Manufacturer's help

Product line documentation

Maintain and install equipment

SD-09 Closeout Submittals

Warranty

5.1.2 PRODUCTS

Include data for material descriptions, recommendations for product shelf life, and precautions for flammability and toxicity.

5.1.2.1 Certificates

Remove products from the work site which do not conform, and replace with new products that conform to the referenced specification. Test replacement products that failed initial testing at no cost to the Government.

Regulatory Requirements In addition to requirements specified elsewhere for environmental protection, provide coating materials that conform to the restrictions of the local Air Pollution Control District and regional jurisdiction. Notify Contracting Officer of any paint specified herein which fails to conform.

5.1.2.2 Safety and Health

Apply sticky materials using safety methods and equipment in accordance with the applicable State, regional and local laws and regulations.

Toxic Materials: to protect personnel from overexposure to toxic materials, conform to the most stringent guidance of: The applicable manufacturer's Safety Data Sheets (SDS) or local regulation.

Follow the general prevention measures against the individual risks identified above.

All workers must be adequately informed and trained on the correct methods of carrying out the activities and using the equipment (Art. 71 comma 7 lettera a) del D.lgs. n.81/08 as modified by D.lgs n.106/09).

Periodically check the efficiency of the tools and equipment used (Art 71 del D.lgs. n.81/08 as modified by D.lgs n.106/09).

Make sure of the toxicity of the materials and products used and follow the instructions given in the respective safety data sheets of the products used.

Be aware of the characteristics of the substances used (e.g. flammability, incompatibility), specifically the concentrations, methods of use and contact times (Art 227, comma 1 del D.lgs.

n.81/08 as modified by D.lgs n.106/09).

The substances used must not be accumulated in the workplace in quantities exceeding that strictly necessary for processing.

Ensure air exchange in the workplace (Allegato IV del D.lgs. n.81/08 as modified by D.lgs n.106/09).

Comply with the necessary measures so that the workplace and the position of the workers during the use of the equipment present safety requirements and respond to the principles of ergonomics (Art. 71 comma 6 del D.lgs. n.81/08 as modified by D.lgs n.106/09).

Do not assume awkward positions for long periods, but if necessary, interrupt work often in order to relax the muscles.

Provide employees with the necessary information for the correct handling of heavy or bulky loads (Art. 168 del D.lgs. n.81/08 as modified by D.lgs n.106/09).

Comply with the instructions received for an exact and correct position to assume when handling loads (Art. 168 del D.lgs. n.81/08 as modified by D.lgs n.106/09).

Before moving the elements by hand, evaluate their weight and size and identify the most suitable way to grasp them, get up and move them without straining your back (Art. 168 del D.lgs. n.81/08 come modificato dal D.lgs n.106/09).

For heavy or bulky loads, the mass must be moved with the intervention of several people in order to distribute and reduce the effort (Art. 168 del D.lgs. n.81/08 as modified by D.lgs n.106/09).

Always use the Personal Protective Equipment provided and Verify the continuous use of PPE by all operating personnel (Art. 75-78 del D.lgs. n.81/08 as modified by D.lgs n.106/09).

5.1.2.3 Adhesives and Sealants

Provide products certified to meet indoor air quality requirements by EN UNI standards above mentioned. Provide certification or validation by other third-party program that products meet the requirements of this Section. Provide current product certification documentation from certification body. When product does not have certification, provide validation that product meets the indoor air quality product requirements cited herein.

5.1.2.4 Schedules for Finishes

Submit manufacturer's samples of wooden floor. Cross references and certification as indicated.

5.1.2.5 Materials

Submit product data sheets for specified coatings and solvents. Submit Manufacturer's Instructions on Mixing: Detailed mixing instructions, minimum and maximum application temperature and humidity, and curing and drying times between coats.

5.1.3 EXECUTION

5.1.3.1 Examination

A. Examine substrates, areas, and conditions, with Installer present, for compliance with requirements for maximum moisture content, installation tolerances, and other conditions affecting performance of wood flooring.

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

C. Concrete Slabs: Verify that concrete substrates are dry and moisture-vapor emissions are within acceptable levels according to manufacturer's written instructions.

5.1.3.2 Protection of areas ad spaces not subject to the work

Prior to surface preparation and wooden floor applications, remove, mask, or otherwise protect, machined surfaces, radiator covers, plates, lighting fixtures, public and private property, and other such items not to be coated that are in contact with surfaces to be coated.

5.1.3.3 Preparation

Remove coatings, including curing compounds, and other substances on substrates that are incompatible with installation adhesives and that contain soap, wax, oil, or silicone, using mechanical methods recommended by manufacturer. Do not use solvents.

Broom or vacuum clean substrates to be covered immediately before product installation.

After cleaning, examine substrates for moisture, alkaline salts, carbonation, or dust. Proceed with installation only after unsatisfactory conditions have been corrected.

5.1.3.4 Installation

Different type of wooden floor application:

• Nailed: for this technique, the oldest and most expensive, it is necessary to use staves at least 1.8 cm thick and a layer of wood to be able to fix the nails.

• Glued: installation carried out with special glues applied to the pre-existing floor, an intermediate layer is not necessary. This technique is the ideal one for laying solid wood parquet.

• Floating: Ideal for prefinished parquet, laying floating or "floating" parquet does not use nails, glues or other supports. It consists in placing the parquet on the base by hooking the slats thanks to T&G decking joints. To guarantee soundproofing, protection from humidity and thermal insulation, insulating material or soundproofing adhesive is placed between the wooden slats and the old floor. Being an interlocking installation, the advice is to opt for large and therefore heavier lists, so as to minimize movement.

Provide expansion space at walls and other obstructions and terminations of flooring of not less than 19 mm (3/4 inch)

A. Vapor Retarder: Comply with the following for vapor retarder installation:

1. Wood Flooring Nailed to Wood Subfloor: Install flooring over a layer of asphalt-saturated felt.

2. Wood Flooring Nailed to Sleepers over Concrete: Install flooring over a layer of polyethylene sheet with edges overlapped over sleepers and turned up behind baseboards.

3. Wood Flooring Installed Directly on Concrete: Install a layer of polyethylene sheet according to flooring manufacturer's written instructions.

B. Sound Control Underlayment: Install over vapor retarder according to manufacturer's written instructions

C. Solid-Wood Flooring: Blind nail or staple flooring to substrate.

D. Solid-Wood Parquet Flooring: Set in adhesive in pattern indicated on Drawings.

If the underlying floor is valuable, the best option for laying is the floating one: a layer of functional insulating fabric is laid to make the planks adhere to the laying surface, thus avoiding the formation of voids which can damage the parquet and amplify noise from trampling.

To lay the parquet on an existing floor, the initial height will rise by 1-1.5 cm, so it is essential that the professional check the level of the fixtures during the inspection.

Prepare and clean the substrate, checking its flatness, compactness and absence of humidity.

In the presence of defects, smooth or use a self-leveling product.

Smooth the substrate with a pumice stone to favor the adherence of the glue.

In the case of walls that are not perpendicular to each other, square the room, tracing perpendicular lines, to refer to when laying the first row of strips.

Apply the leveler with suitable materials, starting from the point furthest from the door, pouring gradually and insisting a little on the marked and grouted areas. Wait about 3 days before laying the parquet.

Spread the glue evenly with a notched trowel, without excesses that could create imperfections as creating air bubbles between the screed and the wooden floor. Dose the optimal amount of glue for good bonding and use single-component adhesive with a silanic termination that reduce noise, recommended for gluing of pre-finished wooden floor onto marble, grit, ceramic or marble-chip floor tiles and with acoustic insulation.

Proceed with the application of the wooden floor, and baseboard if required by the contract, agreed with the C.O.R. Lay the strips and with a rubber mallet and spirit level, make sure that the strips adhere to the substrate, are perfectly aligned and do not present flatness problems.

Space the slats 1 cm from the walls to compensate for the expansion of the wood as a result of temperature changes.

Glue the skirting board on the walls.

5.1.3.5 Field Finishing

A. Machine-sand flooring to remove offsets, ridges, cups, and sanding-machine marks that are noticeable after finishing. Vacuum and tack with a clean cloth immediately before applying finish.

B. Fill and repair wood flooring defects

C. Apply floor-finish materials in number of coats recommended by finish manufacturer for application indicated, but not less than one coat of floor sealer and finish coats.

1. Apply stains to achieve an even color distribution matching approved Samples.

2. For water-based finishes, use finishing methods recommended by finish manufacturer to minimize grain raise.

D. Cover wood flooring before finishing.

E. Do not cover wood flooring after finishing until finish reaches full cure, and not before seven days after applying last finish coat.

If the finishing is done in the laboratory, and therefore the material is ready for installation, the timelines will be adhered to during production.

5.1.3.6 Protection

A. Protect installed wood flooring during remainder of construction period with covering of heavy kraft paper or other suitable material. Do not use plastic sheet or film that might cause condensation.

1. Do not move heavy and sharp objects directly over kraft-paper-covered wood flooring. Protect flooring with plywood or hardboard panels to prevent damage from storing or moving objects over flooring.

5.2 MAINTENANCE PLAN

At completion of project, the contractor shall submit the preventive maintenance plan of all the equipment installed within the scope of the project, as follows.

List in detail the new equipment installed and submit the list to the C.O.R.

The C.O.R. shall review the list and will give the contractor the standard inventory card for each type of equipment. Also the C.O.R. will give the contractor the “Check list” detailing the standard OBO preventive maintenance activity for each type of equipment together with the required schedule, i.e. monthly, semiannual or annual schedule.

The contractor shall fill in the inventory cards for all equipment and shall submit to the C.O.R.

the entire maintenance plan on paper.

6 MATERIAL SHEETS

5.2 MAINTENANCE PLAN

6 MATERIAL SHEETS