Attachment_1_-_Performance_Technical_Specification.pdf

Renovation of Bell Kindergarten Haskovo (Bulgaria)

BU-HA-2013-21974 Version: 001

EUCOM Humanitarian Assistance Program

Renovation of Bell Kindergarten in Haskovo

BU-HA-2013-0021974

Haskovo, Bulgaria

January 2014

1. TAXATION

In accordance with Agreement between the Government of USA and the Government of BU on Defense Cooperation this contract is exempt from VAT. The contractor shall be responsible to prepare and process all required documentation to obtain the VAT exception from the Government of Bulgaria. For this reason, the contractor shall work directly with the corresponding authorities from Bulgaria, US Forces and the US Embassy".

2. PROJECT DESCRIPTION

THE CONTRACTOR SHALL PROVIDE A COPY OF CONSTRUCTION PERMITS TO BE PROVIDED BY

THE COMPETENT LOCAL AUTHORITIES BEFORE WORK IS AUTHORIZED TO START. CONTRACTOR

WILL COORDINATE WITH LOCAL AUTHORITIES AND WILL PROVIDE ALL REQUIRED

DOCUMENTATION IN ORDER TO OBTAIN THE CONSTRUCTION PERMIT THAT MAY BE REQUIRED

FOR THE SCOPE OF WORK INCLUDED IN THIS PROJECT.

GENERAL SCOPE OF WORK

The Work included under this contract includes the necessary designs and the construction for the alterations, modifications and improvements to the interior and exterior of the Bell Kindergarten in Haskovo, also identified as Hoskovo Kindergarten No. 22, as required in these Performance Technical Specifications (PTS) (see pictures #1 and #2 for location of the project). All work to be performed as required by these PTS. It is necessary that the bidders visit the kindergarten before they submit their bids in order to measure and quantify the work required to complete this project in accordance with these PTS. This is extremely important to inspect the condition of the façade and the number of windows and doors included in this contract.

Note: There are numerous pictures in this contract to better describe the scope of work.

These pictures were taken on December 2012 and November 2013. The pictures do not guarantee the existing conditions of the buildings at the time to prepare the bid for the contract, and they are only a tool to describe the responsibilities of the contractor. The contractor is responsible to visit the sites in order to measure and quantify the required work, as well as to verify the existing conditions, prior to the submission of their proposal.

Picture#1: Location of Haskovo in Bulgaria

Picture#2 : Location of Bell Kindergarten

LOCATION OF THE PROJECT

Picture#3 :Drawing of the kindergarten facility

3. DETAILED SCOPE OF WORK - BASE BID

The works included in this construction contract include the following internal and external renovations and improvements:

- Complete renovation of bathrooms and adjacent areas

- Complete renovation of kitchenettes

- Replacing wooden external windows

- Replacing wooden and metal exterior doors

- Complete façade restoration

- Exterior lighting

- Entrance canopy

- Commemorative plaque

All works shall be design and executed in strict compliance with Bulgarian Technical Regulations.

Any work that is not explicitly described in this scope of work, but which is required in order to obtain the final acceptance of works by the competent Municipal authority, shall be considered part of this project, as if perfectly detailed in these technical specifications.

3.1. RENOVATION OF BATHROOMS, KITCHENETTES AND ADJACENT AREAS

The works include the complete renovation of the bathrooms in the 4 groups of children. There are 4 different groups:

- 1: Group B - Mickey Mouse (second floor)

- 2: Group 1st A (ground floor)

- 3: Group 3rd (ground floor)

- 4: Group 2nd (second floor)

The distribution and finished layout of the bathroom and adjacent areas in each group are approximately the same, with the only relevant difference that Group 1st A shall be designed for children with special needs (wheelchairs)

Picture#4: Approximate internal dimensions of areas to be renovated, with name of each space

3.1.1. LAYOUT AND MODIFICATIONS

The layout of the bathrooms, the handwash area, the entrance to the group areas and the kitchenettes shall remain similar to the existing conditions, with the following changes:

- The toilet partitions in the bathroom area to be demolished as necessary for the new scope of work. Partitions to be 1.5 meters high.

- Raise wall between handwash area and entrance to groups area. Currently this separation is provided by a low masonry partition and wooden window. The masonry portion shall be raised approximately 50 cm and the rest to be covered with new PVC single glazing window.

New window should not cover the shower area.

- Bathroom area: Provide 3 European standard kindergarten sized toilet seats and 1 urinal, except in the wheelchair rated bathroom in Group 1st A, where 3 toilets shall be provided and one designed for children with special needs, as seen in picture#5.

- Provide one shower plate with containment wall in the handwash area.

Picture#5: Layout of the bathroom rated for children with special needs in Group 1st A.

Picture#8: Typical installation of floor tiles with joints diagonal to the walls.

3.1.2. FLOORS

All floors in the areas under the scope of work shall be provided with grès ceramic. In the kitchenettes and bathrooms, all floor to be sloped towards the new floor drains.

Provide homogeneous grès porcelain tiles for all areas. Include matching wall base board from the same model as the tiles. Install tiles 40x40 diagonally with respect to the walls.

Grès Porcelain stoneware is a ceramic with a compact, hard, colored and non-porous body. The word “grès” means that the ceramic body of the tile is extremely vitrified, that is to say compact, hence the exceptional great resistance. The result is a lean clay body, little refractory, fired in a kiln (at 1200-1400 C°) until it reaches a non-porous vitrification and a complete water-proofing.

The new ceramic tiles shall be high quality, provided with the following technical features:

- Water Absorption: Tested by ISO 10545 - 3 ≤ 0,5%

- Deep abrasion resistance: Tested by ISO 10545 – 6: Max 175 mm3

- Chemical resistance: Tested by ISO 10545 – 13: Tiles must not produce noticeable signs of chemical attack

- Friction coefficient (slipperiness): Tested by ASTM C 1028 ≥ 0,60

- Size: Minimum 40x40 cm

All floors shall be perfectly leveled, at the same height as the adjacent floors. For that reason, the contract includes removing existing floor surfaces as necessary for the installation of the new floor tiles. In rooms with water supply, such as the bathrooms, handwashing area and kitchenettes, all floors shall be sloped towards the new floor drain to be provided as part of this contract. Tile installation shall be done following manufacturer’s instructions and recommendations.

The new porcelain grès tiles shall be minimum 40x40 centimeters.

Picture#7: Typical grès base boards. Use same model as for the floor tiles

Picture#6: Install floor tiles diagonally with respect to the walls

3.1.3. WALLS

The contractor shall provide new wall surfaces for all areas under the scope of work. In order to provide the new required wall surfaces, the contractor shall remove all existing wall coverings, including ceramic tiles, wall paper, wainscots, paint and plaster as necessary. New plaster to be provide as necessary to provide perfectly leveled wall surfaces. New wall surfaces shall be:

Kitchenettes: Cover all vertical surfaces with new wall ceramic tiles of minimum dimensions 20x30

cm. Combine a minimum of 2 colors/patterned wall tiles to be selected by the kindergarten director among ample selection to be provided by the contractor. Provide stainless steel corner protection and friso. Wall tiles to cover all vertical surfaces, from the floor to the ceiling. Works include removing and reinstalling any installation currently on the walls, such as some accessories for the heating system. All piping (heating, water, sewer, vent, drainage, electric conduits) to be recessed under the walls.

Entrance to Group Areas: Ceramic on lowest 1.5 meters, in combination of 2 colors. Plaster and paint the rest of the wall surfaces, from 1.5 meters to the ceiling surface.

Handwash area and bathrooms: Cover all surfaces with new ceramic tiles of minimum size 20x30.

Combine a minimum of 2 colors/patterned wall tiles to be selected by the kindergarten director among ample selection to be provided by the contractor. Provide stainless steel corner protection and friso. Wall tiles to cover all vertical surfaces, from the floor to the ceiling. All piping (heating, water, sewer, vent, drainage, electric conduits) to be recessed under the walls.

3.1.4. CEILINGS

The contractor shall repair any imperfection existing and caused by their project, and paint all ceiling surfaces.

3.1.5. WALLS AND CEILING PIPE COVERING

There are numerous piping in the area to be renovated. Some are exposed, some are recessed in the new walls and some are partially embedded into the walls. It is the intent of this project to cover all piping to the maximum extent technically possible. All existing piping in the areas under the scope of work shall be replaced with new, and installed under the wall surfaces. However, in some cases, it will be technically impossible to cover all piping. For example, in the ground floor bathrooms, the sewer and drainage piping on the ceiling will need to be visible, if new ceiling surface is not provided. Where the piping will be exposed, they shall be painted in order to minimize their visibility. However, all piping shall be covered along the walls. In some cases, the contractor shall provide masonry or gypsum board partition to cover piping on the walls, as for example the sewer and vent piping on the bathroom and handwash areas. Connection with the ceiling of these pipes shall be exposed in order for easy inspection and maintenance.

3.1.6. INTERNAL WINDOWS

There are large internal windows in the areas to be renovated.

Exterior windows are covered under a separate paragraph.

These windows shall be removed and replaced with new PVC windows with single glazing of minimum thickness of 8 mm.

For estimating purposes, the contractor shall estimate that the new windows shall have the same dimensions as the existing ones.

All glazing to be transparent, except the window between the bathroom and the group area that shall be provided with non transparent glazing.

3.1.7. INTERNAL DOORS

There shall be two types of internal doors: PVC and solid wood

PVC doors: Where indicated in green in picture#9. These doors shall be provided by the same manufacturer as the internal PVC windows. New doors to be provided with see through transparent window in the upper half with glazing of minimum 8 mm thickness.

Doors shall be provided without bottom threshold to allow for easy movement of people without tripping hazards and for ventilation of the rooms. Doors to be provided with hinges, locks and all accessories installed by the manufacturer.

Solid Wood: Where indicated in green in picture#9. Provide solid oak hard wood with minimum 4 cm thickness. All required locks, tubular handles and hinges of stainless steel. Provide stainless steel kick plate as the one shown in picture#28-e. Provide with a see-through window of minimum dimension of 10 cm horizontal and 40 cm vertical. Use transparent glazing of minimum thickness 8 mm.

Some doors have fixed window on its top. The contractor can choose to use the same design for the new doors, or to cover this area with new masonry wall, in coordination with the rest of the walls to be renovated in its corresponding area.

Doors shall all be delivered by the manufactured already installed in the frame. The doors shall be provided with 3 frames (without a bottom threshold). Separation between the floor and the bottom of the door leaves shall be minimum of 1 cm to allow for ventilation of the rooms.

Picture#9: Internal walls to be renovated

3.1.8. ELECTRICAL

The entire electrical installation in the areas under the scope of work shall be replaced with a new electrical installation. All work shall comply with required electrical regulations in Bulgaria in general and with the specific technical and administrative requirements of the electrical supply company.

This portion of the contract is a design-build portion, meaning that the contractor shall perform a complete and detailed design, to be signed and certified by a licensed engineer with authority to work in Bulgaria, which shall be accepted by NAVFAC and approved by the competent Bulgarian authorities before work is authorized to start. The works shall start at the point of connection with the nearest electrical panel with sufficient capacity to supply the electrical needs of the renovated areas. Existing conduits shall be utilized to the maximum extent technically possible if they comply with Bulgarian electrical regulations. The work shall include, but shall not be limited to the following:

- Removal of the existing electrical installation, including cables, boxes, switches, circuit breakers, fuses, lighting, receptacles.

- Providing a new electrical supply circuit to new electric panels inside of the renovated areas.

There shall be one new panel for each of the 4 renovated areas.

- Providing electrical protection to all electrical circuits, including differential protection.

- Wall installation: All electrical circuits/cables shall be recessed within the walls. The contractor shall utilize any existing conduit to the maximum extent technically possible if they meet Bulgarian latest electrical regulations.

- Ceiling installation: New cables/circuits will be necessary for the new lighting fixtures.

Similarly to the walls, it is the intent of this project to install all the cables recessed within the ceilings, so that the electrical installation is not visible. However, if not technically recommendable, and if properly justified by the engineer responsible for the design, the use of existing conduits, or the use of CE certified PVC channels can also be authorized.

- Lighting fixtures: The contractor shall provide new LED technology surface mounted lighting fixtures in the areas under the scope of work. Note that this lighting technology is much more expensive than other alternative lighting technologies. The number, size and location of lighting fixtures shall be the necessary to provide the lighting levels required by Bulgarian/European standards. The contractor’s electrical design shall include calculations for the lighting levels and the resulting lighting level in each one of the rooms under the scope of work. The contractor’s design shall include a table with the minimum lighting levels authorized by Bulgarian/European regulations. Each lighting fixture shall be bolted to the existing ceiling surface. The contractor shall provide a lighting meter to test the illumination level at the end of the project. Final payment shall not be authorized until this is tested in the presence of the Contracting Officer representative.

- Receptacles: Provide 5 in each kitchenette and 2 in the Entrance to Group areas. Do not provide electrical receptacles in the handwash or bathroom areas. Exact location of the receptacles to be indicated by the Kindergarten Director. Receptacles to be recessed within the walls. Provide special receptacles in the kitchenettes to connect existing equipment.

- Switches: Provide wide body switches, recessed within the walls.

- Grounding: Verify existing grounding and modify/improve as necessary to have a grounding system in compliance with Bulgarian/European regulations.

3.1.9. WATER PIPING AND INSTALLATION

Replace all water piping in the areas to be renovated. Connect water piping to main water pipe outside of the kindergarten building.

It is the purpose of this project to bring new water lines from the nearest water supply point within the public plot of land, but outside of the kindergarten building. Provide a new water piping installation in accordance with current Bulgarian/European standards.

The work under the scope of work of this project includes, but is not limited to:

- Removal of all existing water piping in the areas to be renovated.

- Designing the new water piping system with the required diameters to provide the necessary pressure and flow to all the plumbing fixtures.

- Provide new water piping of HDPE (high density polyethylene), properly recessed within the walls in all areas. This implies making trenches along the walls and drilling thought the floors.

- Provide shut-off valves to isolate individual room (kitchenettes, handwash and bathroom rooms)

- Provide cold and hot water to each sink and to the shower. Hot water supply shall be provided by the installation of 2 new electric hot water heaters.

- Hot water heaters: Provide 2 new 100 liter electric water heater. Provide with highest standard thermal insulation provided by the manufacturer. One water heater to supply hot water to Group B - Mickey Mouse (second floor) and Group 1st A (ground floor), and the other water heater to provide hot water to Group 3rd (ground floor) and Group 2nd (second floor).

- Hot water piping to be thermally insulated.

- Hot water heaters to have an individual electric switch, clearly marked as the water heater switch.

3.1.10. SEWER/DRAINAGE/VENT INSTALLATION

Replace all sewer/drainage piping, from their sources (sinks, toilets, floor drains, …) to the existing sewer manholes in the internal patio. The work includes, but is not limited to the following items:

- Removal of all existing sewer/drainage piping.

- Designing the new sewer/drainage piping system with the required diameters in compliance with Bulgarian regulations.

- Provide new vent lines connected with the sewer system, as required by Bulgarian regulations.

- Provide new PVC gravity piping, with the necessary access points for maintenance in case the system gets plugged at any locations.

- Piping installation: All sewer/drainage piping shall be recessed within new walls, to the maximum extent technically possible. It is estimated that the contractor will need to build new masonry or gypsum board partitions to cover this piping in the bathrooms. No sewer/drainage piping shall be visible once the project is completed except in some areas of the ceiling and the connection with the roof.

- Cleaning the existing sewer lines and manholes: The contractor shall clean the existing sewer piping and manholes from the point of connection in the basement to the first existing manhole outside of the plot of land where the kindergarten is located.

3.1.11. SEWER INSPECTION

The contract includes the connection of the new sewer piping with the 2 existing sewer manholes located in the internal patio. According to the user, the sewer piping runs well from these points to the city sewer manhole located in the street in front of the kindergarten. The project shall include an inspection report on the condition of these lines, from the 2 sewer manholes in the internal patios to the first sewer manhole outside the public plot of land of the kindergarten.

The contractor shall hire the services of specialized sewer piping inspection. They shall use robot self propelled cameras. The inspection report shall include details of existing conditions, as well as recommended repairs, if any defect is found.

Repairs to these pipes are not included in this contract, only inspection, report of existing conditions and recommended repairs in case of any defects are found in the inspections.

3.1.12. HEATING SYSTEM

The project includes replacing all existing heating radiators and heating piping in the areas under the scope of work.

The work includes, but is not limited to:

- Replacement of the old radiators

- Removal of the old metal heating piping.

- Design and installation of new heating piping and radiators in compliance with Bulgarian technical regulations. The new heating piping shall be connected with the existing heating piping, and shall be distributed throughout the renovated areas. The heating piping shall be installed recessed within the walls to the maximum extent technically possible. Under no circumstance the piping shall be installed laying on the floor surface or creating any potential tripping hazard.

- All heating piping shall be recessed along the walls, except the point of connection between the existing and the new piping that shall be visible for inspection and maintenance purposes.

- Provide new aluminum bimetal radiators, similar to the one in picture#25, and provide each radiator with individual control and isolation valves. Size of new radiators, shall be similar to the size of the existing ones to be removed.

3.1.13. SPECIFIC ADDITIONAL REQUIREMENT FOR EACH ROOM

In addition to the general requirements previously specified, some rooms have specific requirements that are detailed herein:

3.1.13.1. KITCHEN

The kitchen shall be completely renovated. In addition to the previous requirements, each kitchenette shall be provided with:

Kitchen furniture with countertop where indicated in pink in picture#10. Approximate size in each kitchenette is 2.3x0.6 meters. Provide countertop of artificial stone continuous countertop. Use live colors. Formica or any other type of synthetic covering of wood or composite wood is not authorized. Provide standard kitchen furniture under the countertop and on the walls. Coordinate the design with the beneficiary. Kitchen furniture to be provided below the countertop to be provided with typical drawers and cabinets. Provide vertical piece of countertop with height of 12 cm over the walls, as shown in picture#17.

Industrial Sinks: This is to be provided in 3 of the 4 kitchenettes. Use similar design and material as the existing industrial type sinks in the kitchenette of Mickey Mouse – Group B. Provide 2 sinks per kitchenette in the 3 kitchenettes where they are required. Total of 6 new industrial type sinks are required.

Industrial type faucet for all sinks: Provide a total of 8 new industrial faucets, with cold and hot water, as the one shown in picture#20

Picture#10: Additional work in the kitchenettes

3.1.13.2. ENTRANCE TO GROUP AREA

No additional requirements for this area

3.1.13.3. HANDWASH

Shower: Provide ceramic shower plate, smallest available in the market, and provide masonry partition separating from the water sinks with 0.8 meters height. Masonry partition to be completely covered by ceramic tiles, similarly to the rest of the walls in the room. This shower area shall be used to wash children, but also to fill buckets of water for cleaning purposes. For that reason, the shower hose/faucet shall be provided with a valve to provide water to the shower head, but also to a faucet.

Sinks: Provide 3 sinks recessed over continuous artificial stone countertop. All drainage piping to be stainless steel. Provide countertop with bright colors, made or synthetic material or artificial stone, specifically designed to be used as bathroom countertops. See pictures #21 and #22 for typical colors.

Mirrors: Provide mirrors over sinks recessed on countertop. Mirror to be recessed within the wall (instead of ceramic tiles). Mirror to be surrounded by friso ceramic tiles or my metal friso. All wall surfaces, ceramic tiles and mirrors, to be at the same surface.

Hand drier: Provide one automatic stainless steel hand drier per handwashing area. Total of 4 units to be provided. Provide at proper height for the children. Provide hardwired to the walls so that no cables are visible.

3.1.13.4. BATHROOMS

Partitions: Design and provide partitions to give privacy to the children, but also to provide possibility of easy supervision.

Picture#11: Typical automatic hand drier. Total of 4 units required.

Picture#16: Typical recessed mirror.( Picture from project in Ukraine)

Picture#13: Typical LED technology lighting fixture

Picture#14: Typical LED technology lamps

Picture#12: Typical stainless steel friso

Picture#15: Typical stainless steel corner protection. Required in all areas with ceramic tiles.

3.1.14. PICTURES TO CLARIFY SCOPE OF WORK OF RENOVATION TO BATHROOM,

KITCHENETTE AND ADJACENT AREAS

Picture#18: Typical artificial stone countertop as required by our contract in the kitchenette

Picture#17: Typical countertop of artificial stone with rounded edges. Typical kitchen furniture. As required for new kitchenettes

Picture#19: Typical live colors required for the new countertop of the kitchenette

Picture#20: Typical industrial type faucet required for the kitchenettes. Total of 8 units required.

Picture#21: Typical required continuous countertop for the sinks in the handwash area. Use similar live colors.

Picture#22: Typical color chart for the countertop for the sinks in the handwash area, to provided by the contractor to the Kindergarten Director to select the final color of the countertops. Provide live colors as the one in picture#18.

Picture#24: Potential finishes for the walls and windows of the entrance to the group areas. Floor to be similar but with tiles installed diagonally with respect to the walls.

Picture#23: conceptual design for toilet partitions. Provide toilet areas with all required accessories such as a stainless steel hanger and toilet paper holder. Provide doors with locks and handles. This is a sketch for 2 units. In our contract there will be 4 compartments in each group.

Picture#27: Typical friso as required for the kitchenette and bathrooms

Picture#25:Typical new radiator. Bimetal type

Picture#26: Typical required stainless steel drainage with p-trap for the sinks to be installed over the continuous countertop

Picture#28: Typical friso or decorative tile in middle and upper portions of the walls.

Picture#28-c: Definition of solid wood door. Minimum 4 cm thickness required.

Picture#28-d:Typical wooden door

Picture#28-b: Typical required design for oak wood internal doors to enter the kitchenette and group area.

Picture#28-e:Typical wooden door.

Picture#29: Typical special electrical installation in the kitchen to be replaced.

Picture#34: The two doors to be replaced in each group with new solid wood doors.

Picture#31: Existing sinks to be removed. New shower to be provided with masonry partitions. Floor surface to be changed as required by this contract.

Picture#32: Raise elevation of window sill as marked.

Approximately 50 cm. Provide mirror on new wall surface.

Picture#30: Electric boiler to be replaced with new. All piping to be recessed on the walls.

Picture#33: Remove toilet partitions as necessary for new required toilet partitions. All piping to be covered by new masonry walls/partitions.

Picture#35: Typical radiator to be replaced with new bimetal type

Picture#40: Window to the bathroom area to be provided with non transparent glazing. All glazing to be 8 mm thickness.

Picture#37: Typical toilet partitions to be modified as necessary. Vertical pipes to be hidden behind new partitions

Picture#38:Replace all sewer and vent lines, but do not alter the piping going through the roof deck.

Picture#36: Area for urinal.

Picture#39: Replace all sewer pipes, except the ones going to the roof.

Picture#41: Typical entrance to group areas with ceramic tiles and wall paper to be removed

Picture#46: Typical sewer/drainage piping in one of the bathrooms in the ground floor. Replace all piping.

Picture#43: Piping to be replaced with new. This particular one is semi-recessed on the wall in one of the kitchenettes.

Picture#44: Wall of the kitchen where the new countertop and furniture will be placed.

Picture#42: Handwash area with concrete floor to be removed as necessary so that all floors are at the same elevation. Slope towards the new floor drain.

Picture#45: Wall between entrance group and the group. Replace all internal windows and doors.

Picture#47: Typical existing toilets to be completely replaced with new. Replace and cover sewer piping from floors above.

Picture#52: Sinks to be replaced with new.

Picture#49: All radiators to be replaced. All heating piping recessed along the walls.

Picture#50: Entrance to group area with handwash area at the end.

Picture#48:Existing shower to be replaced with new

Picture#51: Typical kitchen furniture to be replaced with new over special kitchen countertop.

Picture#53: Typical kitchenette piping to be replaced with new one recessed on the walls.

Picture#58: Handwash area

Picture#55: Sinks to be replaced with 3 new sinks over continuous countertop with vivid colors.

Provide new shower replacing existing.

Picture#56: Entrance to group area

Picture#54: Sinks to be replaced with new

Picture#57: Typical piping to be replaced with new and recessed along the walls to the maximum extend technically possible.

Picture#59: Existing wheelchair rated toilet to be replaced with new, including bars that shall be replaced with new stainless steel bars.

Picture#64: Existing sinks to remain.

Picture#61: Entrance door to be replaced with new solid wood with 8 mm glazing as required by the scope of work.

Picture#62: Sewer/Vent piping to be replaced.

Picture#60: Electric panel at the entrance of each group

Picture#63: Heating boiler to be replaced with new.

Existing units to be turned over to the kindergarten director.

Picture#65: Typical special electrical installation in the kitchenette. Area for new kitchen furniture.

Picture#70: Internal doors and windows to be replaced with new PVC framed partitions.

Picture#67: Entrance to group area

Picture#68: Handwash area

Picture#66:Entrance to group area

Picture#69: Internal door and window to be replaced with new PVC framed partitions

Picture#71: Typical window profile (5 chambered)

3.2. REPLACEMENT OF EXTERIOR WOODEN WINDOWS

The works in this contract include the complete replacement of all exterior wooden windows. It is absolutely necessary for the contractor to visit the job site in order to quantify and measure the windows to be replaced. The existing PVC exterior windows shall not be altered or modified as part of this contract.

Exterior Windows – Materials

The new windows shall be minimum of 5 chambered PVC profile with double glazing 4-16-4 (unless specified otherwise). They shall be provided with the quality certificate that may be required for the intended use of the windows.

In the bathrooms, the contractor shall include non transparent glazing and mosquito nets. In the kitchenettes provide with mosquito nets. Mosquito nets to be removable and provided by the window manufacturer.

The operation of the windows shall be similar to the existing ones to be replaced. This means that if the existing window to be removed had 50% of the window area with a fixed panel and 50% with an operational panel, the new window shall have the same functions or operation. However, opening or operational window panels shall open horizontally and vertically. Provide removable mosquito nets in the operational panels of the new windows installed under this project in the bathrooms and kitchenettes.

The contractor shall make the required adjustments and repairs to the window wall opening before installing the new windows. The contractor is responsible to visit the site, to take note of the existing conditions of the window openings and to make all required measurements to quantify the amount of work required by this contract.

The contractor shall completely remove all the exterior wood, including all framing, trims, anchors and supports. This includes windows of several sizes, that the contractor will have to quantify and measure prior to submitting their bid. The contractor shall replace the wooden and metal windows with new PVC framed windows (minimum 5 chamber profiles) with double glazing of minimum (4-16-4).

The new PVC windows shall be perfectly finished inside and outside. The joints between the building and the windows shall be perfectly sealed as seen in pictures below for a typical installation. Contractor to provide PVC sill inside as seen in the pictures below and outside sills made of aluminum or other approved material (i.e. natural marble or exterior rated special ceramic tiles). The installation of the interior PVC sills will require significant amount of interior repair walls.

Picture#73: Typical exterior PVC window installation

Picture#74:Typical PVC window installation. Seal all areas around new windows. Foam not exposed.

Picture#75: Typical PVC window installation with new PVC sill inside and aluminum outside.

Picture#76: PVC sill inside and aluminum outside.

Picture#78: Window leaf opening horizontally and vertically

Picture#72: Typical internal sill required for all new windows.

This requires significant amount of internal repair works.

Picture#77: Typical required external sill for all existing windows

Security Bars: Some windows have security bars. The contractor shall remove these bars, repair as necessary, provide new anchor bars as necessary, paint them, and reinstall them in the same locations where they were found.

The contractor shall repair, patch and paint as necessary in order to restore everything to the original conditions. This may require significant amount of work in the interior walls. There shall be no difference between the existing walls and the repaired surfaces.

Picture#79: Windows to be replaced in internal patio.

Picture#84: Recently replaced windows.

Picture#81: Typical window to be replaced

Picture#82: Windows recently replaced by the Municipality

Picture#80: Detail of window recently replaced by

Municipality

Picture#83: Window to be replaced. Reinstall the existing fan within the new window.

Picture#85: Exterior windows to be replaced.

Picture#90: Windows and door to be replaced. Door included in following paragraph.

Picture#87: Recently replaced windows. These windows are not included in this contract.

Picture#88: Windows to be replaced.

Picture#86: Security bars. Repair the security bars only if the windows are to be replaced.

Picture#89: Windows to be replaced

Picture#93: Door to be replaced with new aluminum door.

Picture#92: Door to be replaced with new PVC door.

Picture#94: Doors to be replaced with new PVC doors.

Picture#91: Door to be replaced with new aluminum door.

3.3. REPLACEMENT OF EXTERIOR WOODEN DOORS

The works in this contract include the complete replacement of all exterior wooden doors.

This includes some doors to the outside and several doors towards the two internal patios.

All exterior wooden doors shall be replaced with new.

The contractor shall use the following type of doors:

- Doors to the exterior of the building:

The contractor shall use new heavy duty aluminum doors, provided with proper locks and hinges installed by the door manufacturer.

- Doors to the internal patios: PVC doors, provided by the manufacturer of the windows, using similar 5 chambered profiles.

Picture#96:Details of metal door assembly to be replaced with new aluminum one.

Picture#95:Exterior metal door assembly to be replaced with new aluminum one. Interior one not to be replaced in this particular one as it is aluminum.

Interior door to be replaced in the other metal assembly.

Picture#94-b: Typical required panic-bar for all exterior doors.

3.4. REPLACEMENT OF EXTERIOR METAL DOORS

This paragraph includes the replacement of exterior metal doors (2 units) with a complete heavy duty aluminum partition assembly, consisting of solid aluminum panels, windows and entrance doors.

There are two entrances with metal doors. The works include:

- First metal door: Replace exterior metal enclosure and interior wood door.

- Second metal door: Replace exterior metal enclosure and do not modify the interior aluminum door.

Therefore this paragraph includes 2 aluminum exterior enclosures 9door, solid panels and entrance door) and one additional entrance door. Total of 3 new aluminum doors.

Design parameters:

- Same size and shape as existing ones.

- Heavy duty aluminum profiles, of minimum weight 1.2 kg per linear meter.

- There is no need to provide thermally insulated doors, as there are 2 doors in each entrance.

- Glazing to be minimum 8 mm thick.

- Provide panic hardware

Picture#98: Metal assembly to be replaced with new aluminum one.

Picture#99: Metal assembly to be replaced with new aluminum one.

Picture#97: Metal assembly to be replaced with new aluminum one.

3.5. FAÇADE RESTORATION

This paragraph includes the complete restoration of the exterior façade of the kindergarten, including the internal patios and all exterior enclosure of the kindergarten complex.

The works include:

- Removing existing paint and plaster by mechanical means. Using high pressure water we guarantee that any loose plaster would be removed. This shall be done by high pressure water washing equipment. Minimum pressure of cleaning equipment to be 200 kg/cm². It is estimated that in some areas the plaster will be completely removed exposing the structural masonry bricks.

- Providing one new leveling plaster reinforced with synthetic fiber, and

- Providing new special plaster in the bottom of all exterior walls. The grounds around the kindergarten have sunk in some locations leaving a gap between the bottom of the façade and the top of the exterior paved areas. The contract does not include repairing the exterior pavement, but the new façade finishes shall finish where the existing paved surfaces start, so that there is no gap between the exterior restored façade and the paved surfaces.

- Repairing the expansion joints, which were covered with continuous plaster and therefore have cracked. The work includes providing a clean straight cut, to be filled with special sealant designed for expansion joints.

- Providing a paint finish, using a combination of 4 different colors to be selected by the

Director of the Kindergarten.

The project includes repairing all structural cracks and damages, before the application of the new plaster. The project includes protection of exterior fixtures connected to the existing façade to be restored and removal of everything that is no longer in use. For example: protection of A/C equipment and removal of electrical appliances no longer in use.

Once completed, the kindergarten shall have the appearance of a new building.

Picture#100: Typical façade cleaning with high pressure water. Removing paint.

Picture#101: Typical façade high pressure cleaning.

Removing plaster.

Picture#102: Detailed of sunk grounds around the kindergarten.

Picture#107: Grounding disconnected. Grounding for renovated areas to be in strict compliance with Bulgaria regulations.

Picture#104: Plaster falling down. All plaster will be removed in these areas.

Picture#105: Typical exterior facade

Picture#103: Detail of special plaster to be replaced to the sunken paved surface

Picture#106: Typical joint to be repaired. Provide new sealant and straight cut along the expansion joint.

Picture#108: Typical facade

Picture#113: Typical joint to be repaired.

Picture#110: Piping and joint to be repaired.

Picture#111:Damaged section of the exterior facade

Picture#109: Very damaged section of exterior facade.

Picture#112: Damaged exterior façade. When using high pressure water blasting most of the exterior plaster will be removed.

Picture#117: Typical 50 Watts LED technology floodlight

Picture#114: Existing exterior lighting to be removed as part of the façade restoration.

Picture#115:Real example of 50 wall LED lights on a school façade.

Picture#116: Typical 50 Watts LED technology floodlight

3.6. EXTERIOR LIGHTING

This paragraph includes providing 8 exterior LED technology floodlights with the following characteristics:

- Connected to the nearest electrical supply point and provided with a new internal switch.

- Electrical installation using existing conduits to the maximum extent possible. If this is not technically possible, use PVC channels. No cables shall be exposed to the view.

- LED technology floodlights of minimum 50 Watts of power consumption

- LED technology floodlights rated for exterior installation

- LED technology floodlights to be installed on the restored building façade, at the exact location to be indicated by the Kindergarten Director.

Picture#118: Main entrance, where to install the new entrance canopy

Picture#119: Main entrance where to install the new entrance canopy

3.7. EXTERIOR CANOPY

The works includes designing and installing a light metal canopy over the main entrance. Size of the canopy to be 3 meters long by 3.5 meters wide.

Picture#120: Typical required new metal canopy.

Picture#121: Typical similar plaque provided in a different renovation project.

3.8. COMMEMORATIVE PLAQUE:

At the end of the construction works, the contractor shall provide and install 1 commemorative plaque at the entrance of the kindergarten, at the location to be indicated by the Kindergarten Director. The plaque shall have the following information engraved on it:

Colored Flag of Bulgaria

Colored Flag of the United States of America

This text: “The renovation of this kindergarten was made possible through a donation from the people of the United States of America to the People of Bulgaria with the support of the Office of Defense Cooperation and US Embassy in Bulgaria – Date”

Same text as above in Bulgarian.

The plaque shall have the following characteristics:

- Minimum thickness 8 millimeters

- Minimum dimensions 60 centimeters wide by 40 centimeters high.

- Resistant to outdoor weather and UV radiation.

- Plaque to be manufactured by specialized company.

- Before purchasing the plaques, the contractor shall submit the design to the Contracting

Officer for approval.

Picture#124: Acceptable man-lift

Picture#122: Required type of scaffold

Picture#123: Required type of scaffold

3.9. SCAFFOLDING

In order to execute the works included in this project, the contractor shall be required to use scaffolding and/or elevating working platforms.

Despite the scaffolds that may be authorized by Bulgarian regulations, the contractor is only authorized to utilize European Standard scaffolds similar to the ones shown in pictures below.

These scaffolds shall be installed and used in accordance with manufacturer’s recommendations. In case the contractor needs to access the façade at any particular point without the need to install scaffolds, the contractor shall use a CE certified (European Community) self-propelled man-lift, similar to the one shown in picture below. The use of other type of scaffolds, other non CE certified man-lifts, or any type of ladders for façade or roof work, IS NOT AUTHORIZED.

Picture#125: some components of European scaffolding

4. PROCEDURE

4.1. Taxation

In accordance with Agreement between the Government of USA and the Government of BU on Defense Cooperation this contract is exempt from VAT. The contractor shall be responsible to prepare and process all required documentation to obtain the VAT exception from the Government of Bulgaria. For this reason, the contractor shall work directly with the corresponding authorities from Bulgaria, US Forces and the US Embassy".

4.2. Principles

This construction contract is based on 4 principles:

1. Strict compliance with Bulgarian technical regulations

2. Strict compliance with United States of America contracting regulations (Federal Acquisition

Regulations)

3. Compliance with the most stringent of US and Bulgarian Safety regulations

4. Compliance with technical requirements of this document.

4.3. Design Requirements

The contractor shall perform the work in strict compliance with the construction codes and regulations of Bulgaria. The contractor is responsible to provide a copy of a Construction Permit issued by the corresponding local authority for those portions of the project that require a Construction Permit as required by applicable Bulgarian regulations. The contractor is responsible to prepare any required documentation and/or designs that will be required in order to obtain these permits. In case any portion of the scope of work of this project does not require a specific construction permit, the contractor shall provide a document from the Municipality stating that they authorize the start of construction. No work shall start until the corresponding construction permit or alternative document is issued by the competent Municipal authority, and a copy provided to the Contracting Officer.

For those items required by the Scope of Work, which are not specified herein, the contractor shall follow the applicable Bulgarian Codes and Regulations.

4.4. Start of Construction

The Project Manager (PM) or Authorized Representative of the Contracting Officer shall authorize the start of construction. This authorization to start will not be given until the contractor:

- Provides copy of official Municipal document authorizing the works to be performed.

- Provides accepted copy of the Safety Plan

- Provides accepted copy of the Quality Control

- Provides copy of the Construction Schedule

- Provides technical information of materials and equipment to be used

4.5. Scheduling and Coordination Requirements

The kindergarten will remain in use during the execution of the works. The contractor shall separate by installation of proper fences and barricades the construction areas from the other areas of the facility, especially those accessible to the children. The contractor shall closely coordinate with the corresponding Director of the Kindergarten the daily work.

For estimating purposes, the contractor shall estimate that they will only be authorized to work in two groups at the same time and that some work should be performed during weekends, holidays and after normal workings hours of the kindergarten.

4.6. Construction Schedule (bar chart is authorized).

All work shall be completed within 300 calendar days after project award.

Within 15 days after contract award, the contractor shall provide a construction schedule including a minimum of 20 activities.

4.7. Accident Prevention Plan / Safety Plan

SAFETY SHALL BE THE FIRST PRIORITY OF THE CONTRACTOR. SAFETY OF THE

WORKERS, STAFF OF THE FACILITIES, GENERAL PUBLIC, AND CHILDREN SHALL TAKE

PRECEDENCE OVER ANY OTHER FACTOR.

The contractor shall use the format included in Annex 1 to prepare the Safety Plan or Accident Prevention Plan

Within the timeframe allowed for the final design submission, the Contractor will prepare and submit a Safety Plan (Accident Prevention Plan) describing procedures they plan to perform to ensure the safety of the workers, the staff of the facilities, the general public, the children and the equipment on the job site. The Plan shall clearly define the safety personnel assigned to this project and the measurements that the contractor will implement to guarantee that nobody will be exposed to any hazards as a result of this construction contract.

Additionally, the safety plan must address types of personnel protective equipment to be used by personnel, types and frequencies of safety inspections, hazard analysis plan to prevent safety incidents, and training utilized to familiarize employees with safety policies and practices. The contractor shall comply with the US Army Corps of Engineers Safety Manual EM385-1-1 wherever the requirements of this manual are more stringent than the requirements of the Bulgaria Safety Law.

No work shall start at the job site until the Safety Plan is received and accepted by the US Government.

Bulgarian Safety Code must be strictly followed. The contractor is responsible for the safety of the workers, the safety of the users of the facility and the general public.

Additional safety requirements for NAVFAC project can be found in Section 01525, which can be found here:

http://www.aed.usace.army.mil/contracting/0093/01525%20Safety%20and%20Occupational% 20Health%20Rqmnts.pdf

The contractor shall propose a Site Health and Safety Officer (SSHO). This person, must have completed the 30-hour OSHA Construction safety class or as an equivalent, this person must have completed 30 hours of formal construction safety and health training in other accredited institution, covering the subjects of the OSHA 30-hour course (see Appendix A, paragraph 4.b) applicable to the work to be performed and given by qualified instructors. The SSHO is also required to have five

(5) years of construction industry safety experience or three (3) years if he possesses a Certified Safety Professional (CSP) or safety and health degree. In Appendix 1, it allows equivalent certificate issued and acknowledged by local authorities. This means that the SSHO would meet the requirements is he/she shows evidence of having completed a safety course of at least 30 hours, covering general construction safety; given that the training was conducted by an authorized official institution, such as an University, or European certified safety agency. This is in addition to the required 5 or 3 years of experience in the construction sector.

4.8. Technical Documentation

The contractor shall provide technical information on all equipment to be incorporated to the job site. This information must be sent to and accepted by the Project Manager before they are purchased by the contractor. This includes paint, toilet accessories, LED technology lighting fixtures, water heater, water faucets, kitchenette countertop, handwash area countertop, etc.

4.9. Language

All communication and correspondence between the contractor and the Government personnel shall be in English. It shall be the responsibility of the Contractor to prepare proposals, invoices, shop drawings and submittals, quality control reports, computations, and all correspondence pertaining to this contract, in the English language; but the Contractor may, for his own record purposes, prepare them in the local language. All correspondence to and from the Contracting Officer shall be in the English language. In case of dispute or claim, the English version will govern.

Immediately after award, the contractor shall appoint an English speaking representative, with cellular phone and e-mail address.

For the visits of the Contracting Officer, the PM or their authorized representative to the job site, the contractor shall provide somebody capable of representing the construction company who can communicate in English language or the contractor shall provide a translator to translate from English to Bulgarian language.

4.10. Pictures

The contractor shall send weekly and representative digital pictures of their construction by e-mail once construction starts, showing construction progress.