ASHE_15-1035_ADDENDUM__2 _29_Jun_2016.pdf

Project # ASHE 15-1035 Add#2

DATE: 29 JUN 2016

31CES/CENM 1

ASHE 15-1035 SUSTAIN FACILITY 1476

AREA F, AVIANO AB, AVIANO (PN) ITALY

ADDENDUM #2

A2.1. Change Item A1.1 to read “Removal of the existing wainscot in the old part of the school mostly damaged by the mold, partially made of wall paper (about 62%) and partially made of resins (about 38%). The item includes the removal of the corner guards and their structures in the atrium also, their storage with care for reinstallation”;

SM 715

A2.2. Change item A1.2 to read: “Demolition of the existing floor in the atrium in the rubber part and in the tiled part, ”

SM 162;

A2.3. Change item A1.4 to read: “Demolition of the skylights in the atrium”.

SM 85

A2.4. Change item A1.5 to read: ”Demolition of the existing waterproofing, insulation and flashings on the flat part of the roof, above the atrium, included the vertical parts above the atrium, the item includes the flashings development about 50 cm and the flashings along the walls development about 10 cm”

SM 370

A2.5. Change item A1.8 to read:” Removal of the flashing above the parapets, development about 60 cm”

LM 9.00;

A2.6. Change item A1.10 Wall coating to read: ”Supply and installation of high impact resistance wainscot like wall coating High Impact Resistance Wainscot “ACQUARELLE” Wall HFS by TARKETT or similar approved to the height of 1.20 from the floor and the bottom part of the rail; the item includes the atrium part and furthermore includes the reinstallation of the structure of the corner guards and the corner guard themselves;

SM 715

A2.7. Change item A1.11. to read: “Internal touch paints, the item consists in all necessary touch paints in the existing paint due to work performed inside the building, due to the particular use of the structure paint must meet child care use in accordance most stringent norm between Italian and US norm”;

SM 10

A2.8. Change item A1.12 to read: Supply and installation of the new floor for classrooms made of cushioned rubber floor TARKETT TAPIFLEX 65 (sheet) thickness 3.35 or similar approved mm in the atrium as in the classrooms of the addition, the item includes the cement mortar base and all work and materials to have a job performed in work man like manner”

SM 162

A2.9. Change item A1.14 to read: “Repair the pilasters corners, the item consists of all the necessary work, cut of the rusted corner shapes replacement with stainless steel ones, restore the plaster and the paint in

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all the pilaster facing the playground area in the old construction of the child care to the height of 90 cm”.

EA 34

A2.10. Change Item A1.15 to read: “Pilaster safety cladding. Supply and install around on all the pilasters and around the wall sections exposed corners for a length at least equal to the width, not covered with tiles in the playground area a cladding made with safety shock absorbent type “onda marina” (Sea wave) by Codex thickness 28 mm made of POLYMAT or similar approved IAW with all norms of durability, safety, fire prevention and all most recent norms and most stringent between US and LN norms for CDCs”.

EA 34

A2.11. Change item A1.16 to read: ”Supply and installation of a hot deep galvanized factory painted screen fence for the chiller area as per Aviano Standards. Color chosen by C.O. the item includes all masonry work to finish the wall, paint the wall and install the screen fence; the item further includes the declaration of a registered Engineer to be delivered at the end of the work, that the fence and its connection to the wall resists to the regular horizontal loads like wind and 120 kg horizontal force at 1.20 m foreseen by law and any other burden.

SM 30

A2.12. Change item A1.17 to read: “Supply and installation of new skylights made of 60 mm thick supply and installation of a fixed electro-colored or anodized aluminum window 60 mm wide thermal cut section included dutral-rubber gaskets, galvanized steel counter-frame, accessories, glass-stops which must be screwed on the window, finishing items cuts, waste materials, sealant, sealing of the frame must be performed by thermos-acoustical self-expanding tapes, no foam allowed, masonry works, fixing installation hardware; minimum computing 1,5 SM; supply and installation of solar control glasses at any height on frame of any kind and shape, continuous façades, glasses walls, not colored glass obtained by float procedure in accordance with UNI-EN 572-1/2 with a surface made reflective by metal oxides hot laminating (pirolisi-polverizzazione catodica) to obtain a radian reflexing including waste materials, cuts, grinding, drillings, installation devices and items, silicone sealant sealing, laminated isolvetro + argon gas + laminated planibel energy 6+12+6. Color chosen by C.O.”.

SM 85

A2.13. Change item A1.19 to read: “Furnish and installation new roof package with insulation:

Solvent-based primer type Index Indever or similar approved. Bituminous solution containing and quick-drying solvents. Packaging homologated in accordance with the ADR on the basis of Ministerial Decree DM 22/02/1990.

Elasto-plastomeric polymer-bitumen draining waterproofing membrane and vapor barrier with an embossed upper face type Index Prominent or similar approved, reinforced with "non-woven fabric" polyester stabilized with roof-proof fiberglass, weight 4.0 kg/SM.

8 cm thick insulation “Stiferite Class BH” or equivalent with upper surface covered with bituminous coating.

-First layer elastoplastomeric polymer-bitumen waterproofing membrane type Index Flexter Testudo Spunbond Poliestere or similar approved, 4 mm thick, reinforced with composed “non-woven fabric” single –strand Spunbond polyester, stabilized with rot-proof fiber-glass and certified with ITC Agrement.

Final layer elastoplastomeric polymer-bitumen waterproofing membrane type Index Mineral Flexter Testudo Spunbond Poliestere or similar approved, 4 mm thick, self-protected with slate chips, reinforced with composed “non-woven fabric” single –strand Spunbond polyester , stabilized with rot-proof fiber-glass and certified with ITC agreement.

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Item includes exhaust vents n. 1/30 SM and support pads for existing cable rack including any other items to provide a job performed in a workmanlike manner;

The item includes furnishing and installation of flashings along the wall, development about 15 cm 81 m of length and in all the critical points which requires the flashing as existing, development about 50 cm length approximately 85 m.

The item includes the correct sloping to avoid water stagnation with particular care where the waterproofing membrane connects to the inner downspout with the removable leave protection.

All consuming materials and all burden included.

SM 370

A2.14. Change item A1.23 to read: “Furnishing and installation on the parapets of 8/10 mm thick hot deep galvanized steel, factory painted flashing development about 60 cm and in any case based on the position, on the color chosen by C.O.”

LM 9.00

A2.15. Replace doors, the item consists of removal of the existing steel doors to access the mechanical rooms on the roof and the frame including download, transportation and disposal and furniture and installation of aluminum doors equipped with door closer which can keep the door open or close it with last part of the closure controlled, handles and lock compatible with BEST locks as per Aviano standards.

EA 3

A2.16. Change item 2. Part III Mechanical works to read: “Furnishing and installation of HVAC system monitoring and control system compliant to :

UFGS-23 09 23.13 20 BAC-net DIRECT DIGITAL CONTROL SYSTEMS FOR HVAC as in para.” TECHNICAL SPECIFICATIONS” of this document or UFGS-23 09 23.01

LONWORKS DIRECT DIGITAL CONTROL FOR HVAC AND OTHER BUILDING CONTROL

SYSTEMS available at https://www.wbdg.org Item includes all HVAC system control and monitoring system including boiler rooms and chillers.

Item includes status control of fire rated dampers. Facility chiller shall be provided with EER monitoring and recording system, reading both chiller thermal energy delivered and electric energy use, EER.

Work item includes demolition and disposal of the entire existing control system, including control bus cable, existing valves and motorized dumpers motor. New control system work station shall be a laptop computer.

LS

A2.17. Change work item 3. PART III – MECHANICAL WORK to read All HVAC terminal units, fan coils, air handling units, exhaust fans, located in the attic mechanical rooms shall be removed, disposed and replaced with new units:

All units shall be in accordance to UNI 10339, shall be 4 pipes units, provided and controlled with inverter/brushless fan motors. Fan coil motor inverter shall modulate controlled by room thermal load demand, Fan coil control shall allow free cooling working mode. Unit coils shall be controlled with pressure independent two ways modulating valves, just one three way valve in each loop branch.

31CES/CENM 4

All Fan coil manual valves shall be replaced with new ball type valves. Water filters shall be replaced new.

Both Chilled and heating HVAC water loop pumps shall be provided with inverters, pumps inverters shall be controlled based on terminal units valve position via communication bus. Exhaust fans in the attic shall also be provided with inverters and all exhaust air flow shall pre-heat incoming outside air into new heat exchangers to be furnished and installed, all units shall comply to EU eco-design directive.

All the “outside air” duct work feeding the Fan coils and AHU shall be replaced with new ductwork, new ductwork shall be sized to allow fan coil free cooling working mode.

Furnishing and installation of electrostatic filters on all air supply ductwork, CRYSTALL DUCT WORK SABIANA or similar approved. Install air pre-filters, mechanical filters, according to UNI 10339, provide one spare filter for each mechanical filter installed.

Work item includes furnishing and installation of new hydronic AHU for both summer and winter air conditioning of the atrium area, indoor playground area in the central area of the facility, the AHU shall include heat recovery system, shall be controlled modulating the fan inverter, free-cooling capability, two coils, heating and cooling, two way valves, each with dedicated water loop and pumps, electrostatic filters work item includes removal and disposal of existing DX unit.

Work item includes the replacement of the existing HVAC system water chiller with 160 KW thermal power chiller and heat pump unit, EUROVENT certified, minimum requested classification:

EUROVENT D (according to EN14511-3: 2013) cooling mode and C heat pump mode. Unit shall be provided with two (2) refrigerant independent loops with two (2) scroll compressors each loop.

Item includes hydronic unit with two (2) variable flow pumps, inertial tank only if required by chiller unit technical specification.

Max. Livello di potenza sonora 10-12 W dB(A) 90, according to ISO 9614-1 EUROVENT certified.

Max. Livello di pressione sonora a10 m dB(A) 58, HVAC water loops shall be upgraded to allow future, NOT part of this contract, installation of a backup chiller/heat pump unit. This includes fittings, tees, ball valves and quick connections valves.

Work items include removal of existing components to be replaced with new one. Existing chiller, pumps shall be delivered to 31 CES area “C” Aviano AB, other items shall be disposed to authorized dumper.

Work item includes balancing, adjusting and testing, TAB, of the HVAC system.

Work item includes flushing of HVAC water loops with chemical product for cleaning and degreasing to remove residues such as oil, iron shavings, hemp solder residues and impurities of the pipeline, both hot and cold water distribution, to make the system clean, test water according to UNI 9182, prior to commissioning.

Work item includes furnishing into HVAC water loops with balanced chemical liquid composition of corrosion inhibitors and anti-fouling treatment of agents.

Work item includes furnishing freezing protection liquid of the chilled water loop.

Work Item includes replacement of all “hemp” sealing with Teflon into the chilled water HVAC loop.

Provide labels with warranty data on all new equipment installed.

LS

A2.18. Change Item A1.24 to read: ” Work Phasing: The contractor, when performing inside work shall work in one classroom at a time, he shall move at its own expenses the furniture with care in a location inside the Facility #1476, indicated by the personnel and he shall move back into the

31CES/CENM 5

classrooms following the personnel directions, he shall provide noise prevention partition while working in the corridors and he shall provide safety “corridors” for his workers and subcontractors to avoid interferences and hazards for the children and three externals phases in the playground area.

When the contractor is performing the external works in the playground area, he shall work on an external façade at the time. The work performed on the roof and in the area not in contact with children/playground area, can be performed without restrains (even simultaneously) keeping the structure safely usable by the CDC personnel and customers”.