Technical Specifications - 191T7024Q0027.pdf

Embassy of The United States of America

Rome, Italy

U.S. EMBASSY ROME

Barber shop and lactation room HVAC

Facility Management

02/08/2024

SENSITIVE BUT UNCLASSIFIED

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1. FOREWORDS

The Embassy of the United States in Rome needs to award a contract for the replacement of the Air Handling Unit at the Multiple use building in Rome in Via Boncompagni 2.

2. GENERAL

The premises where this project is taking place is the Air Handling Unit room at the Multiple use building in Rome in Via Boncompagni 2.

The contractor shall supply all the installation materials 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.

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 site is closed.

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

It shall be Contractor's responsibility to verify all the quantities and dimensions.

Work execution special care:

Protection in place: Provide protection to existing historic materials wherever encountered adjacent to work or along paths of travel to prevent damage to or marring of materials, surfaces, and finishes. Such protection shall be freestanding of the object or surface itself whenever possible and of sufficient size and thickness to withstand impact from falling debris; rolling objects such as equipment, machinery, and handcarts; movement of materials and debris; and residue from flame cuttings such as sparks. Provide all necessary and related parts, devices, lifts, scaffolding and anchors required for complete protection installation.

Provide protection in place to protect objects from dust and construction activities. Provide appropriate and sufficient protection for immovable fixtures and finishes as indicated on attached inventory. Typical protection may include rigid protection to prevent surface abrasion and impact damage, and/or soft protection to cushion over-lying rigid protection and to prevent surface damage from materials that stain or abrade (such as dust). Protection materials will be water-resistant but sufficiently permeable to permit moisture evaporation to prevent biological growths. Protection materials will be installed in such a way

- 3 -that historic materials and finishes are not damaged.

Protection shall prevent damage to all existing historic building elements and finishes, including but not limited to walls, floors, ceilings, moldings, decorative relief, stairs and handrails, and other artwork and architectural features remaining in-situ. Cover and protect furniture, equipment, switch plates, covers, lighting fixtures, and all decorative items from damage and soiling, if such items were not removed prior to the start of the work.

Maintain all protection devices in sound condition until completion of the work.

Repair or replace protection devices as necessary to maintain effectiveness of protection.

Contractor may be directed by the COR to perform some activities outside of Embassy’s official business hours. This should happen at no additional cost.

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Art. 2.1 SAFETY STANDARDS

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.

The contractor shall submit with the offer a preliminary safety plan that must consider all kind of work to be performed within the project being solicited.

The plan must be detailed sufficiently to let the team evaluating the offers that the contractor had correctly understood the nature of the work and its own typical risks, and therefore, had evaluated the relevant costs in their proposal.

The Preliminary Safety Plan must contain:

- For each sequence of work a brief description of the related risks.

- For each sequence of work brief description of the practices, the measures, the individual and collective protection devices that will be adopted by the company in order to respond, minimizing the highlighted risks.

- For each sequence of work a cost-analysis of the selected measures.

The estimate must be congruous, analytical for single items, per unit or per measure.

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:

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"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.

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Art. 2.2 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.

Art. 2.3 DESCRIPTION OF WORK

The work consists of the installation of a new Air Handling Unit at the Multiple Use building to serve the FAC locker rooms.

The Air Handling Unit will be provided by USG. The contractor shall move it to the installation area.

The work consists in:

Site preparation including fences, provisional staging area, protection of materials and furniture, protection of floors and walls.

Removal of all furniture that may impact on the correct execution of the work and transportation to a storage location as directed by the COR, within the Tri- Missions Campus.

Removal and disposal of the existing Air Handling Unit, piping, ducts, heat insulation, valves, etc.). The Contractor will provide disposal certificates to the

COR.

Removal and storage of the existing lighting fixtures and removable false ceiling and transportation to a storage location as directed by the COR, within the Tri- Missions Campus. Lighting fixtures will be reinstalled at the end of the work.

Demolish the wall adjacent to the corridor. Remove and store the door.

Install the AHU. This includes the move of the unit, the installation, the connection to the new electrical panel, the connection to the new BAS panel, the connection to the existing piping and the installation of the sound siliencers.

Rebuild the wall with drywall system, Knauf, Acustika series, Sistema W626 model. The drywall package wall shall be composed of a 12.5mm thick Diamant type sheet, a 12.5mm thick Silent type sheet, structure with C50 / 50 warping, insulation with a density of 40/50 Kg/m3. Rw request = 65dB.

Prepare and paint the corridor walls (approx. 90 m2)

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Modify and reinstall the door so that it can swing in the opposite direction.

Create adequate passage for ductwork on the floor slab. Opening in the concrete slab shall be performed with a boring machine. Borings shall be made with an adequate machine that includes a system for self-containing water and dust.

Close the existing holes in the floor.

Refurbish the AHU room replacing the existing plaster with new one. Refurbish the floor and install new screed. Install antislip (R11) gres tiles.

Supply and install new ductwork

Supply and install of new flexible, closed-cell insulation material and aluminum finishing to protect the ducts

Connect the new ducts to the existing air distribution network at the floor below.

Modify existing windows to fit new ducts.

Install a new AHU distribution panel in the AHU room on roof level. The panel shall be composed of:

o Disconnector: 4 poles 80 A disconnector o Magneto thermic GFCI serving the Supply fan: 4 poles 10A, Ith:10A, Idn:

0.3, Im:100A, Icu/Icn: 6kA – Contactor - electrical cable: FG16OM16 0,6/1 kV, Cca-s1,d1,a1, 5G1.5 o Magneto thermic and GFCI serving the Exhaust fan: 2 poles 10A, Ith:10A, Idn: 0.3, Im:100A, Icu/Icn: 6kA – Contactor – electrical cable:

FG16OM16 0,6/1 kV, Cca-s1,d1,a1, 3G1.5 o Magneto thermic GFCI serving the Heating coil: 4 poles 16A, Ith:16A, Idn: 0.3, Im:160A, Icu/Icn: 6kA – Contactor – electrical cable: FG16OM16 0,6/1 kV, Cca-s1,d1,a1, 5G1.5 o Magneto thermic and GFCI serving the electric Heat recovery wheel: 2 poles 10A, Ith:10A, Idn: 0.3, Im:100A, Icu/Icn: 6kA – Contactor – electrical cable: FG16OM16 0,6/1 kV, Cca-s1,d1,a1, 3G1.5 o Magneto thermic and GFCI serving the BAS panels: 2 poles 10A, Ith:10A, Idn: 0.03, Im:100A, Icu/Icn: 6kA – electrical cable: FG16OM16 0,6/1 kV, Cca-s1,d1,a1, 3G1.5 o Stepdown transformer 230V/24Vac with disconnectors to feed the BAS panel auxiliaries.

Install a new 40A magneto thermic circuit breaker (provided by USG) on the PG/BG Panel.

Supply and install new electrical cable: FG16OM16 0,6/1 kV, Cca-s1,d1,a1, 5G6

Supply and install a new BAS panel that includes at a minimum a UC600. The AHU shall report to the UC600 as per the table below.

The UC600 shall be connected through a AWG22 to the existing TRACER SC panel installed at ground floor.

Create new graphic pages and configure all the new equipment with the BAS as per table below. All the IT work needed to configure the new boiler room to the existing BAS (graphic pages, equipment operation rules, etc.) shall be performed by a TRANE authorized technician.

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Test and balance of the system. Start-up of the unit must be performed by Manufacturer’s authorized technicians.

Final professional cleaning of the premises.

Costs for safety

Equipments/Points Bi Ai Bo Ao Cp

AIR HANDLING UNIT

Air temperature after cooling coil status 1 Alarm Exhaust Fan 1 Alarm Supply Fan 1 Comand Exhaust Fan 1 1 Comand Recovery Wheel 1 1 Comand Supply Damper 1 Comand Supply Fan 1 1 Electric heating coil 2 2 Exhaust air temperature probe status 1 Exhaust filter differential pressure probe alarm 1 Outdoor air temperature status 1 Status Exhaust Fan 1 Status Recovery Wheel 1 Status Supply Damper 1 Status Supply Fan 1 Supply air temperature probe status 1 Supply fan differential pressure probe status 1 Supply filter differential pressure probe alarm 1 Three way valve 1 1 Total pressure probe status 1 Points Total 11 6 6 4 0

Art. 2.4 LIMITATIONS

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

Art. 2.5 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.

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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.

AIR HANDLING UNIT

TRANE

www.trane.com

CLCF 1

BAS

TRANE

www.trane.com

UC600

DRYWALL

KNAUF

www.knauf.com Sistema W626

Art. 2.6 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

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Art. 2.7 RESIDENTIAL SMOKING POLICY

U.S. Tri-Mission Rome Employee Residential Smoking Policy

Tri-Mission residential 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.

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 a residential building 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 RomeFACResMaintenanc@state.gov.

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3. SOLICITATION CHARACTERISTICS

Art. 3.1 IMPLEMENTATION PHASE

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.

Art. 3.2 CONCLUSION PHASE

Once the project is completed a final inspection shall be carried out with representatives of the contractor and the Embassy, in order to verify that the project has been carried out correctly, that it is in compliance with the technical specifications and that the systems operate correctly.

When the work has been completed and accepted by the Embassy, the contractor shall submit to the Embassy’s Technical Office the documents required in the contract.

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Art. 3.3 WORK PROGRESS

In general, the Contractor shall have the faculty of developing the work in the way he believes more convenient and shall hand it over completed within the terms of the contract, as long as, in the opinion of the Project Manager, this is not detrimental to the outcome of the project and the interests of the Administration.

The Administration reserves the right to request that a specific task be carried out within a pre-determined period of time, or to dispose the order of the performance of the work in the way it deems more convenient, especially in relation to requirements depending on the performance of work and delivery of supplies excluded from the contract, without the Contractor having the possibility to refuse or ask for special compensation.

Before starting the work, the Contractor shall submit for the COR approval a detailed operative schedule and costs, which he will follow during the performance of the contract, in concurrence with the schedule.

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Art. 3.4 PARKING

No parking is allowed inside Embassy grounds. 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.

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4. SPECIFICATIONS

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1 SITE DEMOLITION

1.1 REFERENCES

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

National Fire Protection Association (NFPA):

NFPA No. 241 (2000)Standard for Safeguarding Construction, Alterations, and Demolition Operations.

Safety at Work Places:

Law Decree 14 August 1996 “Construction Site Regulations”, Supplements and Amendments.

Trash Disposal:

Law Decree 15 November 1993.

Law Decree 5 February 1997 No. 22 (Decreto Ronchi).

Law Decree 8 November 1997 No. 389.

Decree 1 April 1998 No. 145.

Decree 28 April 1998 No.406, Environmental Department.

Decree 24 June 1998 No. 261.

Circular 4 August 1998 No. GAB/DEC/812/98.

Asbestos Material Treatment:

Law 27.03.1992, No. 257 Norms concerning the discontinuance of the use of the asbestos.

Ministerial Decree 06.09.1994 Norm and technical methodologies for compliance with Law No. 257, dated 27 March 1992, Art. 6, comma 3, and Art. 12, comma 2 concerning the concerning the discontinuance of the use of the asbestos.

Legislative Decree 10.09.1994, No. 626 Implementation of the CEE requirements for improving safety and health of workers on work site.

Legislative Decree 17.03.1995, No. 114 Implementation of the requirements 87/217/CEE concerning the prevention and reduction of the environment pollution due to the asbestos.

Circular No. 7 Explanatory circular of the Ministerial dated 12.04.1995 Decree dated 06.09.1994.

Ministerial Decree 14.05.1996 Norms and technical methodologies for reclamation actions as stated by Law No. 257, dated 27 March 1992, Art.5, comma 1, letter f) concerning:

“Norms for the discontinuance of the use of the asbestos”.

Legislative Decree 14.08.1996, No. 494 Implementation of the requirements 92/57/CEE concerning the minimum safety and health requirements to be accomplished in temporary or mobile work sites.

Legislative Decree 05.02.1997, No. 22 Implementation of the requirements 1/156/CEE regarding waste, 91/689/CEE regarding hazardous waste and 94/62/CEE regarding packaging and waste packaging.

Ministerial Decree 12.02.1997 Criteria for homologation of products replacing the asbestos.

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Ministerial Decree 26.03.1998 List including the name of the firms and list of the materials replacing the asbestos that have obtained the homologation.

Decree 20.08.1999 Increase of the norms and technical methodologies for reclamation actions as stated by Law No. 257, dated 27 March 1992, Art.5, comma 1, letter f, concerning: “Norms for the discontinuance of the use of the asbestos”.

Deliberation 14.03.2001 Modification to the deliberation dated 1 February 2000, protocol No. 002/CN/ALBO, concerning “Criteria to be enrolled in the Albo Categoria 10: Reclamation of asbestos containing goods” (Deliberation No. 004/CN/Albo).

Decree 25.07.2001 Rectification of Decree 20 August 1999 concerning “Increase of the norms and technical methodologies for reclamation actions as stated by Law No. 257, dated 27 March 1992, Art.5, comma 1, letter f) concerning norms for the discontinuance of the use of the asbestos”.

Decree of the Council of Regulations for the determination of the Ministers President model and the procedures to keep the 10.12.2002, No. 308 register in case of mesothelioma due to the asbestos according to Legislative Decree No. 277, dated 15 August 1991, Art.36, comma 3.

Ministerial Decree 13.03.2003 Criteria of admissibility of the wastes in the dump site.

1.2 SUBMITTALS

Statements: A demolition plan giving the procedures proposed for the accomplishment of salvage, demolition and removal work shall be submitted to the Contracting Officer’s Representative and approved before work is started. The procedures shall provide for careful removal and disposition of materials specified to be salvaged and coordination with other work in progress. The procedures shall include a detailed description of the methods and equipment to be used for each operation, the sequence of operations and in case of demolition of adherence built constructions or in case of partial demolitions they shall also include the calculation of provisional structures which are to bear possible walling and, if the size of the work requires it, also a geotechnical report about the adjoining buildings.

1.3 GENERAL REQUIREMENTS

The work includes the demolition and/or the removal of all construction indicated or specified.

All materials resulting from demolition work, except as indicated or specified otherwise, shall become the property of the Contractor and shall be removed from the limits of Government property. Trash and debris shall be removed from the station daily, unless otherwise directed, and shall not be allowed to accumulate on the site. Such materials which, in the opinion of the Contracting Officer’s Representative, cannot practically be removed daily shall be neatly stored on the site where directed by the Contracting Officer.

1.4 DUST AND DEBRIS CONTROL

Dust resulting from salvage, demolition and removal work shall be controlled to prevent the spread of dust and avoid creation of a nuisance in the surrounding area. Use of water will not be permitted when it may result in, or create, hazardous or objectionable conditions such as ice, flooding and pollution.

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1.5 PROTECTION

Protection of Existing Work from Damage:

Protect existing work which is to remain in place, to be reused, or to remain on the property of the Government by temporary covers, shoring, bracing and supports.

Repair such items which are damaged during performance of the work or replace with new. Do not overload structural elements. Provide new supports or reinforcement for existing construction which is weakened by demolition or removal work.

Weather Protection

The interior of the building and all materials and equipment shall be protected from the weather at all times. Where removal of existing roofing is necessary to accomplish work, materials and workmen necessary to provide adequate and approved temporary covering of exposed areas shall be kept in readiness at all times. Temporary coverings shall be attended as necessary to insure their effectiveness and prevent displacement.

Protection of the Trees and Shrubs

Protect trees and shrubs within the project site that might be damaged during demolition, and that are indicated to be left in place. Restore trees scarred or damaged by Contractor equipment or operations to a satisfactory condition or replace them as determined by the Contracting Officer’s Representative.

Facilities

Protect all electrical and mechanical services and utilities. Where removal of existing utilities and pavement is specified or indicated, provide approved barricades, temporary covering of exposed areas and temporary services or connections for electrical and mechanical utilities.

Protection of Personnel

Where pedestrians’ and drivers’ safety is endangered in the area of work removal, barricades for traffic shall be used and advance notice shall be given to the Contracting Officer prior to beginning any such work.

1.6 USE OF EXPLOSIVES

Use of explosives will not be permitted.

1.7 BURNING

Burning will not be permitted.

1.8 RELOCATIONS

Perform the removal and reinstallation of relocated items as indicated with workmen skilled in the trades involved. Repair items to be relocated which are damaged or replace damaged items with new undamaged items as approved by the Contracting Officer’s Representative.

1.9 DISPOSITION OF MATERIAL

Title to Materials

Title to all materials and equipment to be removed, except as specified otherwise, is

- 18 -vested in the Contractor upon receipt of notice to proceed. The Government will not be responsible for the condition, loss or damage to such property after notice to proceed.

Material to be salvaged

Salvaged material shall be stored as directed by the Contracting Officer.

Reuse of materials and equipment

Carefully remove and store materials indicated to be reused or relocated to prevent damage and reinstall as the work progresses.

1.10 CLEAN-UP

Debris and Rubbish Control

Debris and rubbish shall be removed each day and transported in a manner that will prevent spillage on streets or adjacent areas. Clean up spillage from streets and adjacent areas.

Regulations

National, Provincial, and local regulations regarding hauling and disposal shall be complied with.

2 CIVIL WORKS

2.1 MORTAR FOR MASONRY

The water and sand used for the preparation of mixes shall have the requisites and technical characteristics described in articles "Materials in General" and "Water, Limes, Cements and Concrete".

The use of premixed mortars and ready premixes is allowed, as long as each consignment is accompanied by a declaration from the Supplier certifying the mortar group, the type and quantity of the binders and possible additives. Where the type of mortar does not fall under those indicated hereunder, the Supplier shall also certify, with official tests, the resistance characteristics of the mortar itself.

The methods for determining the mortar resistance and compression are reported in ministerial decree 13-9-1993.

The types of mortar and their classes are defined in relation to the composition in volume;

mortars of different proportions in the compositions also made with additives, tested in advance, can be deemed equivalent to those indicated as long as their average resistance to compression is not less than the values contained in ministerial decree 20-11-1987, n.

103.

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2.2 MATERIALS IN GENERAL

As a general rule, it is intended that the materials, products and necessary components, made with traditional and/or handicraft technologies used for the construction work shall originate in a locality deemed convenient by the Contractor, as long as, in the indisputable judgment of the COTR they meet the characteristics/performance described hereunder.

For industrial products, conformity with this chapter can be proven by a certificate of compliance released by the producer and confirmed by suitable documentation and/or certification.

2.3 CONSTRUCTION OF FLOORING

The term "flooring" means a building system with the purpose of permitting or improving the transition and resistance to stress in specific conditions of use.

They are conventionally subdivided into the following categories:

- flooring on a bearing layer

- flooring on ground (i.e. where the ground functions as a bearing layer for the flooring)

When not described differently in the other tender documents (or if these are not sufficiently detailed) it is intended that each of the above-mentioned categories shall be made up of the following functional layers (Constructively, a layer can perform one or more functions).

a) Flooring on a bearing layer shall have the following elements or fundamental layers:

1) The bearing layer, with the function of resisting mechanical stress due to permanent or working loads;

2) The yield layer, with the function of compensating and rendering compatible any differential yields between contiguous layers;

3) The distribution layer, with the function of transmitting the mechanical stress impressed by external loads to the bearing layer, if the layers making up the flooring should have substantially differentiated mechanical behaviour;

4) The connecting layer, with the function of anchoring the lining to the distribution (or bearing) layer;

5) The covering layer with esthetical function and resistance to mechanical, chemical stresses.

The following layers could become fundamental, depending on the conditions of use and the stress expected;

6) waterproofing layer with the function of giving the flooring prefixed waterproofing to liquids coming from steam;

7) thermal insulation layer with the function of bringing the flooring to a pre-determined thermal insulation;

8) sound proof layer, with the function of bringing the flooring to a pre-determined acoustic insulation;

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9) compensation layer with the function of compensating levels, slopes, flatness errors and incorporate any systems (this layer, frequently also functions as connecting layer).

3 PLUMBING

3.1 COMPONENTS OF PLUMBING SYSTEM

In compliance with Law 46 dated 5-3-1990 the plumbing systems and their components shall meet with UNI standard codes.

3.2 BATHROOM FIXTURES

1. Bathroom fixtures in general, no matter what shape or material they are made of, shall meet the following requisites:

- mechanical durability;

- mechanical sturdiness;

- no visible or esthetical defects;

- resistance to abrasion;

- all the parts that are in contact with dirty water, shall be easy to clean

- those with metal support shall be resistant to corrosion

- functional

2. Ceramic fixtures shall meet the following standards: UNI 8949/1 for toilet bowls, UNI 4543/1 and 8949/1 for urinals, UNI 8951/1 for sinks, UNI 8950/1 for bidets. The other fixtures shall comply with UNI code 4543/1 concerning ceramics as well as the functional characteristics described in item 1 above.

Fixtures made of plastic based material shall meet with UNI EN 263 code for acrylic slabs for bathtubs and shower plates. Connection sizes for various fixtures shall comply with UNI EN codes and the following specific standards: UNI 8194 for metal-acrylic resin sinks; UNI 8196 for metal-acrylic resin toilet bowls; UNI EN 198 for metal-acrylic resin bathtubs; UNI 8192 for metal-acrylic resin shower plates; UNI 8195 for metal-acrylic resin bidets

3.3 BATHROOM FAUCETS

a) The faucets considered in this chapter are those belonging to the following categories:

- individual faucets, i.e. those with only one water feed;

- mixer faucets, with two water feeds and separate controls to regulate and mix the water capacity. The mixers can have different construction solutions e.g. separate or joint controls, visible or hidden (underneath the sink or inside the wall) body; able to be installed on horizontal or vertical surface;

- mechanical mixer, a single element that has the same functions as the mixer above, mixing the two water flows beforehand and regulating the water flow afterwards, the two functions shall be carried out each time in order to obtain the desired water temperature. The mechanical mixers can have different characteristics serving the following purposes: single or double command, visible or hidden (underneath the sink or inside the

- 21 -wall) body; able to be installed on horizontal or vertical surface;

- thermostatic mixer; this element functions like the mechanical mixer but automatically varies the capacity of the two flows at different temperatures to supply and keep the water at the desired temperature.

b) The bathroom faucets described above, shall meet the following characteristics, no matter what their type or construction solution:

For other types of faucets UNI EN 200 standards are applied as far as possible or reference is made to other technical standards (mainly foreign standards).

c) The faucets shall be furnished protected by suitable packing material to prevent impacts, scratches, etc. during transportation and moving to the work-site. The descriptive sheet accompanying the product shall indicate its characteristics as well as other information useful for its installation, maintenance, etc.

3.4 RIGID AND FLEXIBLE CONNECTION PIPES

(FOR CONNECTING FEED PIPES TO BATHROOM

FAUCETS).

No matter what material they are made of, or their construction solution, these pipes shall meet the following characteristics:

- they shall not be subject to change from chemical actions or heat;

- they shall not release any particles in the drinking water;

- not affected by mechanical stress from the insider and/or the outside;

- the inside surface shall be free of any roughness that could encourage deposits;

- test pressure shall be the same as that of the faucets connected.

The characteristics described above shall be deemed as being met in full when the pipes comply with UNI 9035 standards and compliance is supported by a declaration of conformity.

3.5 CONSTRUCTION OF WATER SUPPLY SYSTEM

1. By water-supply system we intend the apparatus, pipes, supply equipment that transfers drinking water (or non-drinking where this is allowed) from a source (public aqueduct, well, etc.) to outlets.

The systems, unless specified differently in other tender documents (or if these should not be sufficiently detailed) shall be subdivided as follows:

a) feed systems for drinking water.

b) feed systems for non-drinking water.

The methodology for supplying drinking and non-drinking water is determined by the appropriate authority, which is also responsible for

- 22 -checking the quality of the water.

The above systems are functionally subdivided as follows:

i) feed sources

ii) cold water distribution network

iii) hot water preparation and distribution network.

2. The materials indicated in the tender documents shall be used to carry out the different functional parts. If these are not specified in detail, the following indications shall be adhered to, as well as those supplied for components. As a further point of reference, UNI 9182 standard shall be used for reference.

a) Feed sources for drinking water shall be consist of:

i) public aqueducts managed or controlled by a public authority; or

ii) Collection systems (wells, etc.) supplying water that has been approved for drinking by the appropriate authorities; or

iii) Other sources such as large storage, conditioning plants.

Storage plants (large storage plants are subject to public authorities and usually furnished with an automatic conditioning system) must be authorized in advance by the appropriate authorities and must have the following characteristics:

- airtight in order to prevent pollution from the outside;

- made with non-polluting, and non-toxic material able to maintain the same characteristics over a period of time;

- air outlets and overflow shall be protected with filtering devices that comply with indications from the appropriate authorities;

- furnished with a device that ensures the total replacement of water every two days for tanks with a capacity of up to 30 cubic meters and a replacement of not less than 15 cu.m. per day for tanks with a larger capacity.

- must be disinfected before put into operation and periodically cleaned and disinfected.

b) Water distribution networks shall have the following characteristics:

ii) the pipes shall be installed at a distance from the wall sufficient enough to permit removal of protective lining and/or insulation. The conformation shall permit them to be emptied completely and the air eliminated. When hot water circulation networks for domestic use are included, they shall be furnished with dilation correctors and fixing points in order to maintain the desired conformation;

iii) water pipes shall not be located inside electrical cabins, above electrical equipment panels or near materials that could become dangerous if wetted, inside trash-collection rooms or areas that have polluting substances.

Furthermore, the cold water pipes shall run below the hot water pipes.

Laying the pipes inside walls should be avoided. When this is not possible the pipes should be lined with insulating and compressible material at least 1 cm. thick;

iv) Pipes laid in the ground shall be placed at least one meter (measured between the outer surfaces) from drainpipes. The lower generating line shall always be above the highest point of the drainpipes. The metal pipes shall be protected from corrosion by the soil with suitable linings or sheaths and from the danger of being crossed by stray currents;

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v) insulation shall be installed both for condenser of the hidden cold water pipes and for the hot water pipes for domestic use. When necessary protection against frost shall be taken into consideration.

c) When constructing the system care must be taken in considering minimum distances when installing the bathroom fixtures (see UNI 9182 code, appendix V and W) and the special specifications for rooms to be used by handicapped persons (law n. 13 dated 9-1-1989 and Ministerial Decree n. 236 dated 14-6-1989).

In bathrooms, specifications concerning safety shall be complied with (distances of fixtures from parts of the electrical system) as indicated in CEI 64-8 standards.

In order to limit transmission of noise and vibrations, in addition to choosing components with low noise levels (and suitable design criteria), during the construction phase, care shall be taken to adopt correct inner sections for the pipes so as not to exceed the expected water flow velocity, limit the fluids' pressure especially for shut-off and control devices, and reduce pump motors speed, etc.

(not more than 1,500 rpm on an average). During the installation phase, care shall be given to making dilation devices, inserting anti-vibration supports and shock absorbers to avoid propagation of vibrations, acoustic insulation shall be used near the walls.

4 DRAINAGE SYSTEM

By drainage system we intend the pipes, equipment, etc. that transfers water from the user point to the public sewer. The drainage system shall be independent of the rain water disposal system, at least to the point of emission into the public sewer.

Where necessary, the drain system can be subdivided into different systems carrying fecal, soapy or greasy waters. The disposal of used waters shall comply with specifications issued by appropriate authorities.

The above system shall be deemed functional when subdivided as follows:

section to pipe water (unions, branches, risers, manifolds);

section designated for primary ventilation;

section designated for secondary ventilation;

collecting and lifting below quota;

water treatment.

In order to construct the different operational parts, materials and methodology described in the project design shall be used. In addition, the following indications shall also be complied with.

Furthermore, UNI 9183 code shall be used as an ulterior point of reference.

1) The pipes shall comply with the following codes:

zinc-plated steel pipes: UNI 6363 and UNI 8863 FA 199 (their use shall be

- 24 -limited to non-soapy drainage waters with little suspended matter. Where the steel pipes are lined, the lining shall comply with existing UNI codes (polyethylene, bitumen, etc.) and shall not be damaged or detached; if this should happen, the pipe shall be eliminated;

cast iron pipes: shall comply with UNI 7385 and UNI ISO 6594 codes, be the centrifugal, re-baked type, have internal asphalt lining, epoxidic resin and shall be treated externally with asphalt or painted with anti-rust paint;

lead pipes: shall comply with UNI 7527/1; be processed in such a way to obtain constant section and thickness along the entire course. They shall be protected with tarmac and painted with bituminous paints in order to protect them from the aggressive action of cement;

sandstone pipes : shall comply with UNI 9180/2;

fiber-cement pipes : shall comply with UNI 5341 FA 86 non reinforced concrete pipes: shall comply with UNI 9534; reinforced pipes shall comply with good techniques (up to the availability of UNI Codes) plastic pipes: shall comply with the following codes:

PVC pipes for piping inside buildings: UNI 7443 FA 178 PVC pipes for buried piping : UNI 7447 High density polyethylene (Pead) pipes for buried piping : UNI 7613 Polypropylene pipes (PP) : UNI 8319 High density polyethylene (Pead) pipes for piping inside buildings: UNI 8451

The materials, components and methodologies used to construct the system shall be those indicated in the tender documents. If they are not specified in detail, or in addition to them, the following shall be adhered to.

UNI 9183 code shall be considered as an ulterior point of reference.

1. When they do not have direct exhaust outdoors, the secondary ventilation risers can:

Be jointed to the drain columns at a quota of at least 15 cm higher than the upper edge of the apparatus' overflow located at the highest quota in the building;

Be jointed below the lowest drain connector;

Intermediate connections shall be made between drain and ventilation column.

Testing Once the system has been completed temporary tests shall be made for operational verification of the treatments to be carried out. Once the temporary tests have been favorably carried out, the system can be put into operation under the control of the supplier for a period of not less than 90 days in conditions of normal load.

Once the tests have been favorably concluded and corroborated with a certificate, the system shall be handed over to the COR who shall oversee management directly or award it to third parties.

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A guarantee from the supply company shall be valid for a period of one year, starting from the date of the favorably concluded tests. The supply company shall remove any defect not caused by operation or maintenance errors with maximum timeliness.

5 BASIC MECHANICAL MATERIALS AND

METHODS

5.1 APPLICABLE PUBLICATIONS

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

Italian National Institute for the Unification of Standards (UNI) Publications Sheet Metal and Air-Conditioning Contractors' National Association (SMACNA) Publications

Testing, balancing and adjusting of environmental systems.

Directive 2009/125/EC of the European Parliament and of the Council of 21 October

2009 establishing a framework for the setting of ecodesign requirements for energy-related products

HVAC duct construction standards.

HVAC Air Duct Leakage Test Manual.

National Fire Protection Association (NFPA) Publications 90A-93 Standard for the installation of air conditioning and ventilating systems 90B-93 Installation of warm air heating and air conditioning systems

5.2 SUBMITTALS

All submittals shall be translated into English. Submit shop drawings, manufacturer's data, publication compliance, certified test reports and manufacturer's certificates of compliance for equipment, materials and finish, and pertinent details for each system where specified in each individual section, and have them approved before procurement, fabrication or delivery of the items to the job site. Partial submittals will not be acceptable and will be returned without review. Submittals shall include the manufacturer's name, trade name, country of origin, catalog model or number, nameplate data, size, layout dimensions, capacity, project specification and the specific technical paragraph reference which specifies each item, applicable U.S., Italian or European Standard, industry and technical society publication references, and other information necessary to establish contract compliance of each item to be furnished.

5.3 SHOP DRAWINGS

Drawings shall be a minimum of 210 mm by 275 mm in size. Drawings shall include floor plans, sectional views, wiring diagrams, and installation details of equipment; and equipment spaces identifying and indicating proposed location, layout and arrangement of items of equipment, control panels, accessories, piping, ductwork, and other items that must be shown to assure a coordinated installation. Wiring diagrams shall identify circuit terminals, and indicate the internal wiring for each item of equipment and the interconnection between each item of equipment. Drawings shall indicate adequate clearance for operation, maintenance and replacement of operating

- 26 -equipment devices. If equipment is disapproved, drawings shall be revised to show acceptable equipment and be resubmitted prior to proceeding with the work.

5.4 MANUFACTURER'S DATA

Submittals for each manufactured item shall be manufacturer's descriptive literature of catalogued products, equipment drawings, diagrams, performance and characteristics curves, and catalog cuts.

5.5 PUBLICATION COMPLIANCE

Where equipment or materials are specified to conform to industry and technical society publications of organizations such as International Standards Organization Publications (ISO) and Italian National Institute for the Unification of Standards Publications (UNI) proof of such compliance shall be submitted. The label or listing by the specified organization will be acceptable evidence of compliance. In lieu of the label or listing, submit a certificate from an independent testing organization adequately equipped and competent to perform such services, and approved by the Contracting Officer, stating that the item has been tested in accordance with the specified organization's publication. Where equipment or materials are specified to conform to publications, the manufacturer of the product shall submit a certificate of compliance stating the equipment or materials meet or exceed the performance, design, and product requirements of the referenced publications.

5.6 CERTIFIED TEST REPORTS

The testing requirements in referenced publications for materials will be waived provided that the manufacturer's original certificates are submitted stating that previously manufactured materials have been tested by approved laboratories, that such materials meet testing requirements specified, and that the materials furnished for this project are of the same type, quality, manufacture and make as those tested;

copies of the test reports don’t need to be submitted except as specifically requested by the Contracting Officer’s Representative.

5.7 MANUFACTURER'S CERTIFICATES OF

COMPLIANCE

Submit certification from manufacturer attesting that materials and equipment to be furnished for this project comply with the requirements of this specification and of the referenced publications. Pre-printed certifications will not be acceptable; certifications shall be manufacturer's original certifications and shall be no more than one year old.

The certification shall not contain statements that could be interpreted to imply that the product does not meet all requirements specified, such as "as good as;" "achieve the same end use and results as materials formulated in accordance with the referenced publications;" "equal or exceed the service and performance of the specified material."

The certification shall simply state that the product conforms to the requirements specified. Certificates shall be signed by the manufacturer's official authorized to sign certificates of compliance.

5.8 POSTED OPERATING INSTRUCTIONS

Furnish approved operating instructions for each principal item of equipment for the use of operation and maintenance personnel. The operating instructions shall include wiring diagrams, control diagrams, and control sequence for each principal item of

- 27 -equipment. Operating instructions shall be printed or engraved, and shall be framed under glass or in approved laminated plastic and posted where directed. Operating instructions shall be attached to or posted adjacent to each principal item of equipment including start up, proper adjustment, operating, lubrication, shut-down, safety-precautions, procedure in the event of equipment failure, and other items of instruction as recommended by the manufacturer of each item of equipment. Operating instructions exposed to the weather shall be made of weather-resisting materials or shall be suitably enclosed to be weather protected. Operating instructions shall not fade when exposed to sunlight and shall be secured to prevent easy removal or peeling. Operating instructions shall be dual language (English and Italian).

5.9 OPERATION AND MAINTENANCE MANUAL

Furnish an operation and maintenance manual in both the Italian and English language for each item of equipment. Furnish three copies of the manual bound in hardback binders and digital copy or an approved equivalent.