Attachment 4 Initial RFI Responses.pdf

36C25724B0017 INITIAL RFI RESPONSES FOR ORIGINAL 36C25723R0013 SEED

PROJECT

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RFI #1 Renovate Bldg. 71 for Mental Health (549-22-231)

1. Reference Construction Scope of Work, we are instructed to Provide Professional construction services including: “b. The building is experiencing different water penetration issues both from underground and from the roof.”

a. Question: Is the awarded contractor responsible for design related to remediating the underground water penetration issues? No.

b. Is the underground water penetration issue included in the scope of the seed project? Yes.

2. Reference Specifications 01 00 00 1.6.I. Phasing. Phase I and Phase II are blank

– will these be amended and reissued? Phasing is shown in General Note #3 on sheet A101.

3. Reference Specification 23 08 00 1.1.B. 01 91 00 is reference but not provided.

Will this 01 91 00 be provided? Is now added.

4. Reference A-401, both metal stud and wood studs are shown as Partition Types 1&2 respectively. Per A-101 all new partitions are to be Type-2 wood studs.

However, we have been provided specification 09 22 16. Where is the new metal framing Wall Type 1 required? All walls are wood studs. See keynote 14 on A101 for Wall Type 1 locations.

5. Reference 01 74 19 Construction Waste Management yet the footer is labeled “Safety Requirements”. Is this the correct specification? That was a typo and is corrected to CONSTRUCTION WASTE MANAGEMENT.

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RFI #2 Renovate Bldg. 71 for Mental Health (549-22-231)

1. Sheet A-401, Key Note 3 – please provide detail and specification for this requirement. VA interior designer to provide plastic laminate specifications.

2. Please provide an enlarged detail of the new exterior gable wall indicated by Key Note 6 on Sh. A-201 providing wall thickness, vapor barrier, insulation, and sheathing requirements. Match existing construction.

3. Please confirm that all new interior framed walls are to be Partition Type 2 and extend to the roof deck. Confirmed.

4. Please confirm STC ratings do not apply to the new wood doors. Confirmed.

5. Please confirm the entire existing building is equipped with fire suppression.

Please confirm that no fire suppression work, other than that required for new ceilings is to be included in our proposal. Fire suppression work required for new ceilings where new rooms have been created.

6. Key Note 3 on Sh. A-201 calls for insulation at the new flat roof areas. No roofing insulation is shown or noted elsewhere for the area of the new roof. Also, no insulation specification is included in the documents. Please provide complete assembly information such as R-value, vapor/air barrier, etc. for each roof type.

Provide R-30 insulation with vapor/air barrier at all new roof areas (flat and sloped).

7. No roofing material is indicated for the new flat roof areas. Please provide complete assembly information for this application. New roof to match existing roof.

Submit roofing material samples for approval.

8. General Note 2 on Sh. A-111 seems to indicate the existing gypsum board ceilings are to remain in place. Please confirm this is the case and clarify to what extent we are required to patch and repair. Gypsum board ceiling above the acoustical ceiling is for the fire protection of roof structure. Patch and repair all new and existing openings to maintain fire protection.

9. Related to question 16 – during the site visit we were able to determine ceilings in area 71C are gypsum board and area 71D is acoustic tile. Please provide information.

for the existing ceilings in area 71B. See ceiling plan A-111 as all new ceilings are acoustical tiles. VA interior designer to provide ceiling tile specifications.

10. Please provide a specification for the access door called for by General Note 4 on Sh. A-111. Provide 1-hour rated metal access door. Submittal required for approval prior to installation.

11. Demolition Key Note C, Sh. M1.0 - Please clarify what work is expected as part of the “return” of mechanical equipment, namely palletizing, crating, loading, moving (location?), storing, etc. Equipment. Equipment being removed. Coordinate with VA what is needed to be salvaged.

12. Sheet A-103 Interior Finishes makes no mention of painting walls, door frames, etc.

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Please provide specific information for painting new walls and door frames. Also clarify. Paint all new and existing gypsum board walls, gypsum board soffits (if any), and painted doors and frames. Existing walls with wallpaper and stained wood doors need not be painted unless directed by VA.

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RFI #3 Renovate Bldg. 71 for Mental Health (549-22-231)

1. Is AISC (American Iron and Steel Certification) required for the structural steel fabrication and/or erection for this project? There is no structural steel on this project.

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RFI # 5 Renovate Bldg. 71 for Mental Health (549-22-231)

1. Reference Seed Project Drawings - Structural drawing S-201 is not showing framing as called for on architectural drawings A-120 and A-201 (raising roof and moving ridge line over to match existing ridge). Please clarify. Details for this will be provided during construction based on field conditions, existing drawings for this roof are not available. The intension is to provide framing attached to existing roof joist to move the ridge line over.

2. Reference Seed Project Drawings – Architectural drawing A-120 shows a new flat roof Keynote 5. What is this roofing material? We do not have specifications for flat roof. Match existing flat roofing material.

3. Reference Seed Project Drawings – A-501 all door types are shown as Type 1 – there are no Type 2 shown. Please confirm all new Wood Doors are Type 1 Flush. Confirmed, all doors are Type 1.

4. Reference Seed Project Drawings – Sheet A-101 Note 14 refers to D2/A-401.

There is no D2/A-401. Please clarify. See D1/A401 Partition Type 1.

5. Reference Seed Project Drawings – Sheet A-401 D1 Partition Types are labeled STC-rated. There are no STC ratings shown on A-501 for door openings. Are the doors and frames to be STC-rated to match the partitions shown? STC ratings do not apply to the new wood doors.

6. Reference Seed Project Drawings – Sheet A-120, the flat roof design shown is very prone to continued roof leaks. What is the design of how the flat roof terminates towards the new gabled end? We understand you are attempting to avoid an internal gutter, but the current design appears prone to leaks. Please clarify the design intent of how the flat roof terminates. Transition of sloped roof and flat roof is like existing. Flat roof to overlap under the sloped roofing at all sides. Provide maximum slope allowed for flat roof per site condition. Provide all flashing as required. Provide shop drawings for approval prior to construction.

Water to drain off over the sloped roof at front.

7. Reference Seed Project Drawings – Sheet A-401 - Partition Type 1 – Detail notes both wood and metal studs. Please clarify the stud types since bottom plates are shown as wood not metal channels. Walls are constructed with wood studs.

8. Reference Seed Project Drawings – Sheet A-111. Is the existing ACT ceiling to be demolished and replaced with new at the new ACT? Yes.

9. Reference Seed Project Drawings -There is an existing wet pipe fire suppression system. Please confirm this is not a part of the scope of the work – where the new acoustical ceiling tile is installed below the existing gypsum ceiling with sprinkler heads installed. Is the fire suppression system in the scope of work?

The new ceiling shall have a new sprinkler system, so therefore, upgrading the fire suppression system for this area renovated is required.

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10. Reference Seed Project Drawings – the existing ceiling grid is black, what color grid is required for the new acoustical ceiling tiles? White

11. Reference Seed Project Drawings – Sheet A-111. General notes conflict. 1. Says to remove existing ceiling where new ceiling is shown. Then 2. Says maintain original upper gypsum ceiling. The drawings show that 71A primarily shows the existing acoustical ceiling to remain. But 71 B, C, and D require new ACT.

Gypsum board ceiling above (upper) the acoustical ceiling is for the fire protection of roof structure. This UPPER gypsum board ceiling is not visible. The visible ceilings are ACT.

12. Reference Seed Project Drawings – Sheet A-111. Ceiling Height is noted 8’6”.

Please clarify this is the new ceiling height, not the existing. New and existing ceiling height should be the same unless noted otherwise. Verify in field.

13. Reference specification 05 50 00 2.7.A. Wall Corner Guards. None are shown.

Please confirm there are no corner guards on the project. There are no corner guards unless required by VA.

14. Reference specification 09 05 16. Specification states “This section specifies subsurface preparation requirements for areas to receive the installation of applied and resinous flooring.” Where is this required – there is no resinous flooring on the project. Correct, there is no resinous flooring on the project.

15. Reference specification 10 28 00 2.8.A.1.d. 09 06 00 specification is missing.

Please provide. We do not have a finish schedule. Please provide color selections for the following:

a. Asphalt Shingles. Match existing.

b. Steel Railings. Match existing.

c. Interior Walls. Painted gypsum board.

d. Interior Flooring. See A103.

e. Interior acoustical ceiling tile and grid. VA interior designer to provide specifications.

f. Interior doors and frames. Match existing stained door and painted metal frame.

16. Reference specification 08 14 00.1.1.A.1. Specs state interior doors have a transparent finish. The door schedule lists stained. Please clarify the door finish.

Stained to match existing.

17. Reference 23 05 11 1.2.E and 23 08 001.1. Is commissioning required for this project? If so, will specification 01 91 00 be provided? Yes. Attached.

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RFI # 6 Renovate Bldg. 71 for Mental Health (549-22-231)

1. Sheet EL-1.0 - multiple rooms show 2-gang light switches as EXISTING TO REMAIN, the new light fixtures show to be single circuit, one light fixture per room. Please clarify how to price this item. – Replace 2-Gang light switch with 1-gang switch. The existing lights are with fluorescent lamps having multi switching for the lamps. The new fixtures are LED and should have only one (1) to control the lighting.

2. Sheet E-0.1/GENERAL NOTE #31 – are all outlets to receive engraved plates, including EXISTING TO REMAIN? - Yes, all outlets to receive engraved plates.

3. Sheet E-0.3 – one-line shows feeding new Panel 71-HVAC from DP-71A, there is one spare breaker in it now (GE TED 150A frame), 250A frame would not fix.

Please clarify how to price this item. – Existing Distribution Panelboard DP-71 had a spare breaker with 200Amps trip during our site investigation. The existing 200A breaker is to be replaced with 250A breaker. See image below taken during our site investigation.

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RFI # 8 Renovate Bldg. 71 for Mental Health (549-22-231)

1.

2.

3.

4.

5.

Responses:

1. One existing area drain is to be relocated; therefore, the plumbing drawing will be revised to reflect the drain relocation.

2. Area drain on east side under new ramp to be relocated per keynote #17. Area drains on west side in the walkway to remain per keynote #19. Verify site condition prior to construction.

3. Keep the roof slope as shown at minimum ¼” per foot from north to south. Water not captured by new roof drains and overflow drains will flow over the edge of gable roof on south side.

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4. The water damage is due to the storm water penetrating through the building’s exterior walls. More drainage is provided, and the equipment pad has been relocated to resolve the issue.

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RFI # 14 Renovate Bldg. 71 for Mental Health (549-22-231)

1. Is this an addition to an existing system, or an upgrade (new panel, communicator, etc.) of existing system? – No, it is an addition to the existing System.

2. The plans/manual mention fire sprinkler devices and the drawings state “building fully sprinklered” but I cannot find any information on existing sprinkler devices. Is this building sprinklered? Yes, building is fully sprinklered.

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RFI # 17 Renovate Bldg. 71 for Mental Health (549-22-231) Response to #2

Response to 1: Modify fire sprinklers according to new floor plans.

Response to 2: This is a Type V building (wood construction) therefore keeping it the same type of construction.

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RFI # 18 Renovate Bldg. 71 for Mental Health (549-22-231)

1. Please clarify which areas are getting roofed. I see the new roof, but there are no notes showing where the new roof will be tied into the existing roof. Are we going all the way to the ridge? Also, on the demo areas shown on M1.1 are we only making a patch or are we roofing the entire slope? Sheet A-120 key note #4 is the new sloped roof and key note #5 is flat roof. Match existing flat roofing material. Transition of sloped roof and flat roof is like existing roof. Provide shop drawings for approval prior to construction.

2. Page A-501 Has a detail to paint all doors, yet in the matrix it states to stain them. Which is preferred? New doors shall be stained to match existing.

3. What is the specific door hardware schedule? Provide VA standard hardware per

VAMC Guide PG18-14. Consult VA for matching hardware. New office door hardware to match typical existing office door hardware type with lever handles.

Provide restroom door hardware with same finish.

4. Pictured is the "new flat roof" where we are to also put a pitched truss roof.

Please clarify. That circled key note #5 should read “existing flat roof”, not “new flat roof”.

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RFI # 20 Renovate Bldg. 71 for Mental Health (549-22-231)

1. Regarding door hardware (087100), the only hardware set included in this section is for exterior doors, of which there are none on this project. Will a correct hardware schedule be provided?

New office door hardware to match typical existing office door hardware type with lever handle. Provide restroom door hardware with same finish.

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RFI # 21 Renovate Bldg. 71 for Mental Health (549-22-231)

1. Demolition plan AD-101 does not identify any floor demolition. If floor demolition is required as part of this contract, please clarify/revise plan sheet AD-101 to show which flooring is required to be removed. See A-103 for new flooring where existing flooring is to be removed. Prepare existing concrete floor to accept new flooring.

2. If any temporary walls will be required during construction, please identify locations on the floor plan and their construction. Contractor to determine the locations of temporary walls if/when required. No specific requirements or locations provided at this time.

3. Please provide roofing plan details for both roof types to include transitions and flashing.

Transition of sloped roof and flat roof is like existing roof. Provide shop drawings for approval prior to construction.

4. Please identify the existing roof shingle manufacturer, model, and color if contractor is to match existing. Existing roof shingle info not available. Submit samples for approval prior to construction.

5. At the front of the building, Keynote 8 on Detail B1/A-201 indicates “Extend brick fascia to underside of new roof. Match existing.” Please identify the brick manufacturer, model and color that matches. Existing brick info is not available.

Submit samples for approval prior to construction.

6. Keynote 14/A101 references detail 2/A401 which is missing. Please provide.

See D1/A401 Partition Type 1.

7. Plan sheets A1-101 and S200 reference plan details B1/A401 and B2/A401. Confirm these references should be A1 and A2 on A401. Correct, they should be A1 and A2 on A401.

8. Please provide a plan detail showing the requirements of keynote 3 plastic laminate Counter as used on plan details C1 and C2/A-401. VA interior designer to provide plastic laminate specifications.

9. Is the existing gypsum wallboard along column lines 3 and 4 required to be demolished prior to installation of the new ½” plywood shown on structural plan S-200 and 4/S301? Yes.

10. Reference previous question. New ½” plywood is required on walls along column lines 3 and 4 in new rooms B100 Open Office, B101 Office, and B103

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Office. What is the required finished surface at these specific walls? Painted gypsum board over plywood.

11. Please provide a room finish schedule for the project showing the finish required for walls. Paint all new and existing gypsum board walls, gypsum board soffits (if any), and painted doors and frames. Existing walls with wallpaper and stained wood doors need not be painted unless directed by VA.

12. Plans and specifications differ on the requirements for the new roof sheathing. Please clarify new roof sheathing thickness and type required by amendment. Roof sheathing is shown on the S-201. ¾ inch thick plywood struct 1.

13. Please define “P.O.D.” as used by keynote A/M1.0. Point of disconnect.

14. If new mechanical roof curbs require framing under the roof sheathing for support, please indicate requirements by amendment. No. They are light-weight equipment. If any roof support is required provide framing between existing roof joists.

15. Confirm that the controls for this building are stand-alone and are not to be tied into the campus controls. No, it must be part of the campus controls. Refer to sheet M5.0 and specification 23 09 23.

16. Reference A-111 GN1. Please confirm ceilings in 71A are existing to remain and are not being replaced as there is a fair amount of work required above these ceilings including AHU replacements and at times differing lighting layouts. Most of existing acoustical ceilings to remain except in Office A109, A108, Group Room A117, and south side of Corridor A125 near the Lobby A100.

17. GN 2/A-111 states “Maintain original upper gypsum board ceiling. Patch and repair openings.” Please identify on a plan where the upper gypsum board ceilings are located and what can be expected as it relates to repairing openings (for bid purposes). Upper gypsum board ceilings occur throughout the building.

Gypsum board ceiling above the acoustical ceiling is for the fire protection of roof structure. Patch and repair all new and existing openings to maintain fire protection.

18. Do the new HVAC supports penetrate the existing 2nd S/R Ceiling, reference

GN2/A-111?

Depending on the location on the AHU and how the ductwork is routed there will be penetration through the drywall ceiling. In some places the drywall may be removed and reinstalled for the equipment installation.

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19. Reference M2.0. What are the requirements / sizing for the new refrigerant lines between condensing units and AHU’s? Please refer to REMARKS in AIR HANDLING UNIT SCHEDULING in sheet M0.2.

20. Please identify any required subcontractors if any (for example, mechanical controls, fire alarm, security). Yes, both controls and Fire alarm are needed.

21. Please identify any required manufacturers (if any) for locks or key cylinders.

Provide VA standard hardware per VAMC Guide PG18-14. Consult VA for matching hardware.

22. Detail 1/E-5.0 identifies cement plaster ceiling (N) or (E). Please identify locations (if any) of any new or existing cement plaster ceilings. Ceiling requirements to be coordinated with the Architectural drawings.

23. Confirm that new exterior railings are steel primed and painted and not galvanized. Steel primed and painted.

24. Do exterior steps require safety nosings? If yes, can a plan detail be provided?

Provide concrete grooves safety nosing for full width of stair.

25. Is the new ceramic tile floor thinset or mudset? Thinset.

26. Plans and specifications differ on the acoustical ceiling tile. Please provide a basis of design Mfr/Model# for the required ceiling tile. VA interior designer to provide ceiling tile specifications.

27. Several sections of specifications refer to section 09 06 00 Schedule for Finishes. Please provide this section by amendment. See A103 for floor finish.

Paint all new and existing gypsum board walls, gypsum board soffits (if any), and painted doors and frames. Existing walls with wallpaper and stained wood doors need not be painted unless directed by VA.

28. Please provide a basis of design for Resilient Sheet Flooring, 09 65 16. VA interior designer to provide specifications.

29. Please clarify if existing wood rail/trim in corridors require refinishing. Refinishing required.

30. Will seismic restraints apply to this project located in Dallas, reference Section 23 05 41 Noise and Vibration Control for HVAC Piping and Equipment paragraph C.1? No. Noise and vibration will apply.

31. Will flexible metal conduit (fished in wall) or surface metal raceway be used at existing walls requiring new power receptacles? Or will the existing drywall need to be cut and patched to install new EMT? All metal conduits to be inside the

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wall. Existing drywalls need to be cut and patched to install new EMT. Flexible conduits cannot be more than 6’-0” in length. Cut and patch the existing dry wall to install new EMT.

32. Please identify on ES-3.1 the location of the data comm closet the new data outlets (ES-3.1) will be tied to. VA/OIT will perform all the termination of new data outlets. Comm. Closet upgrade was to be done as a separate project before the beginning of this project per the input from VA.

33. No work is shown within the data comm closets. Will existing patch panels be utilized for the performance of this project? If any work is required to be provided for under this contract within the data communications closets (such as new patch panels), please provide a design by amendment. All work in Data Comm.

Closets to be done by VA/OIT.

34. If areas identified with keynote 2 ED-1.0 require new lighting controls, please provide a design for the lighting controls by amendment. All areas with new lighting are provided with lighting controls. See sheet EL-1.0.

35. Since this renovation isn’t located within the hospital and the spaces are office use, will Duplex Receptacles – Non-hospital grade provided for in Section 26 27 26 paragraph 2.1.C be allowed or will the project require the use of hospital grade duplex receptacles, paragraph 2.1.B Duplex Receptacles? Non-Hospital grade receptacles can be provided in non-patient areas.

36. Reference plan detail 5/S-101. What is the minimum depth of required compacted fill under sidewalks? 12 inches minimum.

37. Is there a minimum depth of existing soils required to be removed under new handicap ramps and stoops? 12 inches minimum.

38. Please confirm there are no ceilings required in rooms A119 Eng. Clo., C205 Eng. Clo. And C213 Eng. Clo, reference Reflected Ceiling Plan A-111. No ceiling in listed rooms confirmed.

39. If any wall base is required, please clarify wall base types for each room. Match existing rubber top set base 6” (?).

40. If any existing wall base is required to be removed, please indicate locations and type by amendment. Remove wall base where walls are removed.

41. If existing ceramic tile is to be demolished, is there a mortar bed to be demolished under the existing ceramic tile? Existing condition unknown.

42. Is wall partition type 2 specified on plan sheet A401 and A101 the partition to be used on all walls (gypsum board goes to underside of deck above???)? Yes

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43. We do not see partition type 1 used in the plans. Is this partition to be used for any new wall partitions? Partition Type #1 is for extending existing walls in 71D.

See key note #14 on A101.

44. Plan sheet M1.0 shows area 71 to be entirely greyed out (to be demolished).

Please provide As-Builts for the HVAC in this area. There are no as-built drawings available for Mechanical work in that area.

45. Plan sheet A-501 Door Schedule note 2 states “Door & Hardware to match existing.” Section 08 71 00 hardware set HW-E1 is for a storefront, not applicable to this job. Please provide a hardware schedule. Provide VA standard hardware per VAMC Guide PG18-14. Consult VA for matching hardware. New office door hardware to match typical existing office door hardware type with lever handles. Provide restroom door hardware with same finish.

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RFI # 22 Renovate Bldg. 71 for Mental Health (549-22-231)

1. Is there a mortar bed to be demolished under the ceramic tile? Existing condition unknown.

2. Plan sheet A-120 key note 5 calls for new flat roof. Please provide a specification for the flat roof by amendment. Match existing flat roofing material. Transition of sloped roof and flat roof is like existing roof. Provide shop drawings for approval prior to construction.

3. Please provide a plan detail for new stairs / steps by amendment. See A-102 which shows number of treads and risers.

4. Confirm that Keynote 10 “New Concrete Paving” used at top right of plan sheet A-101 near column lines A & 1 should be keynote 11 “Existing concrete paving to remain.” Areas shown with sand pattern are “New Concrete Paving” per Keynote 10.

5. Plumbing plan P-102 identifies 2 existing Area Drains vicinity of column line D/5. Keynote 9/A101 identifies the drain closest to the building as a new area drain which is correct. Please correct the plumbing plan so that the new area drain is not omitted by the plumbing contractor.

Yes, the plumbing plan with area drains will be revised to reflect or follow the architectural drawings which is to relocate the area drain.

6. Detail D1/A-401 Partition Type-2 indicates UL Design No. U465. If UL Design No. U465 requires anything other than what is shown in this detail, please provide additional specific requirements of the U465 design. Provide what is shown in the detail.

7. Partition Type 2 on A-401 terminates at the existing bottom of deck above. What is the existing bottom of deck material? Gypsum board attached to bottom of roof joists or roof truss.

8. Plan sheet A-001 Topographical Survey is from the year 2012 and does not seem to reflect the existing conditions or all the areas of this project. Can an updated survey be provided? Updated survey is not available.

9. Keynote 19 /A101 labeled “Existing area drain to remain” points to the catch basin in the new sidewalk vicinity of column line 1. However, keynote 10/P102 seems to indicate it is relocated. We understand this is an existing to remain area drain unless clarified otherwise by amendment. Existing area drain to remain is correct. Plumbing drawings to be amended.

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10. There is a conflict between Scope of Work paragraph on M0.1 requiring “THE

RELIEF AIR FROM THE BUILDING WILL BE DISCHARGED AT 10 FEET

ABOVE THE ROOF AND 25 FEET AWAY FROM OUTSIDE AIR INTAKES” and the Relief Air Hood Scheduled on M0.2 and plan detail 9/M4.1 which does not extend 10’ above the roof. We understand the scheduled relief air hood is correct and the Scope of Work paragraph on M0.1 is not applicable to this project. If this is not a correct understanding, please clarify otherwise by amendment. There is a typo, and it should say “AT 10 FEET ABOVE GRADE.”

Not above the roof.

11. Note 3/A201 refers to roof insulation, see STR. No insulation is shown on the structural plans. What type of insulation & R-Value is required? Provide R-30 batt insulation.

12. If any existing data outlets to remain are tied to an existing data closet to be demolished, please identify these data outlets and the location of the data closet being demolished. All the data outlets that need to be demolished have been identified on Sheet ED-1.2. Location of data closet to be demolished must be provided by VA.