RFI Responses Correct Critical Roof and Exterior Wall Deficiencies RFIs 32726.pdf

Project 557-21-103: Correct Critical Roof and Exterior Wall Deficiencies- RFI’s 36C24726R0030

Compliance and Documentation:

1. Is this a Davis Bacon Wage project? If so, what is the roofing rate? VA

RESPONSE: YES, WAGE RATE IS IN THE SOLICITATION ON SAM.GOV

GA20260095 01/23/2026

2. Reference spec section 01 00 00 section 1.22. Please confirm if photographic documentation including the electronic indexing, utilizing drawings, and making drawings interactive with photos is required for this project.

AE RESPONSE: YES, PHOTOGRAPH RECORD-KEEPING, TESTING, AND

REPORTING.

THE CONTRACTOR IS TO MAINTAIN A CONTRACTOR QUALIFIED

CONTROL (CQC) PERSON ON SITE WHILE WORK IS BEING

PREFORMED.

A PROJECT SUPERINTENDENT MAY NOT PERFORM THE CQC ROLE.

THIS PERSON SHALL SUBMIT A SAMPLE REPORT WITH

PHOTOGRAPHS FOR APPROVAL.

INSTALLERS DIRECTING AND PERFORMING THE WORK CAN NOT

WORK AS THE CQC. THE SUPERINTENDENT CAN NOT ALSO BE THE

SSHO AND CAN NOT BE THE OFFICIAL PHOTOGRAPHER OR RECORD

KEEPER.

THE CQC WILL USE PHOTOS AND DESCRIPTIONS TO SHOW ALL

FUTURE INSTALLERS THE APPROVED PROCESSES ESTABLISHED IN

THE MOCKUP PROCESS OR AGREED TO MANUFACTURER’S

APPROVED PROCESSES.

THE CQC PERSON WILL SUBMIT THE INSTALLATION MEETING

MATERIAL TO THE RESPECTIVE MANUFACTURER'S SHOWING

GENERAL INSTALLATION PRACTICES. UPON SUGGESTIONS BY THE

COR, INSTALLER, MANUFACTURER OR TESTING AGENT, ADDITIONAL

EDITS MAY BE AMENDED TO THE CQC SITE SPECIFIC TRAINING

MATERIAL. THE CQC PERSON SHALL ADMINISTER AND MAINTAIN A

SIGNED-OFF SHEET OF INSTALLERS WHO HAVE SEEN AND

UNDERSTAND THE INSTALLATION MANUAL WITH PHOTOGRAPHS

AND OR VIDEO. ONLY INSTALLERS WHO HAVE REVIEWED AND

UNDERSTAND THE INSTALLATION DOCUMENTS PREPARED BY THE

CQC ARE PERMITTED TO INSTALL ON THIS PROJECT.

PROGRESS PHOTOGRAPHS, RECORD-KEEPING, TESTING, AND

REPORTING FILE STORAGE

THE CQC PERSON SHALL BE RESPONSIBLE FOR ALL CAPTURED

PHOTOS USING A 50-MEGAPIXEL, OR BETTER, CAMERA ABLE TO

CAPTURE INSTALLATION DETAIL. CQC PERSON SHALL SUBMIT

PHOTOGRAPHS, TESTING, AND REPORTING USING A CLOUD-BASED

MANAGEMENT SYSTEM AND SHALL SAVE ALL INFORMATION IN AN

AGREED VA / CONTRACTOR METHOD. SUBMIT A SAMPLE REPORT

TAKEN OF ANY TEST AREA WITHIN THE QUALITY CONTROL REPORT

TO THE COR FOR PHOTO QUALITY AND CONTENT APPROVAL. USING

A CLOUD-BASED REPORTING SOFTWARE. BASIS OF DESIGN IS

PROCORE. THIS SUBMITTAL SHALL INCLUDE THE CQC'S STANDARD

REPORTING FORMAT. THE FORM SHALL HAVE THE FORM NAME,

DATE, ITEM BEING REPORTED ON, LOCATION WITHIN THE BUILDING,

PHOTO, PHOTO SAVED NAME AND LOCATION (SEE BELOW), AND A

PORTION OF THE ELEVATION SHOWING THE PHOTO LOCATION. IF

THIS SHOWS A TEST LOCATION, STATE TEST STATUS, APPROVED / IN

PROGRESS / FAILED, AND WHO THE FORM WAS SENT TO. NAME OF

INSTALLATION COMPANY, CQC'S NAME, CQC'S COMPANY NAME.

THESE FORMS CAN BE STANDARDIZED USING THE CLOUD-BASED

SOFTWARE (PROCORE BASIS OF DESIGN). ALL FORMS MUST BE

PRINTABLE IN PDF FORMAT.

ALL PHOTOGRAPHS AND FILES SHALL BE KEPT ON A CLOUD BASED

SERVER. THE BASIS OF DESIGN IS PROCORE. THE PHOTO LOCATION

CAN BE TRACKED USING FILE NAMES OR MULT VISTA LOCATION

POINTERS (COLOR CODED ARROWS) SUPERIMPOSED ON THE

ELEVATION DRAWINGS.

ALL PHOTOGRAPHS AND REPORTS SHALL ALSO BE FILED AND

TURNED OVER THE COR USING AN AGREED TO IDENTIFICATION

SYSTEM LIKE THE FOLLOWING:

1. DATE OF PHOTO (MM/DD/YY)

2. COLUMN LINE (CL-##) OR WINDOW NUMBER (WN-##)

3. NAME OF REPORT (BACKER ROD, SEALANT, PAINT, EXISTING

CONDITION,....)

PHOTOGRAPH RECORDS EXPECTATIONS ARE ONE PHOTO WITH A

DESCRIPTION FOR EACH PROGRESS AREAS. IF CONTENT REQUIRES

MORE THAN ONE PHOTOGRAPH THE CQC PERSON IS ENCOURAGED

TO CAPTURE THAT CONTENT AND LABEL IT IN ADDITIONAL

PHOTOGRAPHS USING THE SAME LABELING SYSTEM. SEE SAMPLE

OF RECORD PHOTO DETAIL THIS PAGE.

ALL FILES WILL BE SAVED USING A CONTRACTOR-SUBMITTED AND

COR-APPROVED FILING SYSTEM.

EXAMPLE FILE FOLDER:

DATE:

FILE FOLDER: SEALANTS

FILES IN FOLDER: 09242023_WN24_SEALANT_1

UPON COMPLETION OF THE PROJECT SUPPLY THE COR WITH A

DIGITAL COPY OF THE FILE FOLDER AND ALL OF THE WINDOW CQC

VIDEO AND PHOTO CONTENT ORGANIZED IN THE COR APPROVED

FILE FOLDER SYSTEM.

CQC SHALL PROVIDE CLOUD BASED ACCESS TO THE VA AND DESIGN

TEAM AND WILL ASSUME ALL ASSOCIATED COST FOR THIS ACCESS.

3. Reference spec section 01 45 00 which states the Quality Control Manager "is required to be a graduate engineer, graduate architect, or a graduate of construction management, with a minimum of 10 years PM or SRE". This spec also states that the CQC Manager also has duties as the project Superintendent.

Please confirm if the CQC Manager is required to have one of the 3 degrees listed above. VA RESPONSE: THESE SPECIFIC DEGREES ARE NOT

REQUIRED, HOWEVER, CQC MANAGER MUST HAVE AT LEAST 10

YEARS OF EXPERIENCE IN A CQC ROLE.

4. Please confirm the minimum number of onsite personnel that will be required by the GC to fulfill the roles of Superintendent, QC Manager, and SSHO. . VA

RESPONSE: ONE PERSON CAN WEAR A MAXIMUM OF TWO ROLES.

AE RESPONSE: QC MANAGER SHOULD BE AN INDEPENDENT

PERSON WITH A PROFESSIONAL LICENSE AND MUST HAVE THE

USACE CONTRACTOR QUALITY CONTROL CERTIFICATE.

5. We request that a second site visit be allowed. Please confirm if there are any other available times for a visit. VA RESPONSE: NO ADDITIONAL SITE

VISIT WILL BE HELD.

6. Is an additional site visit(s) possible? VA RESPONSE: NO ADDITIONAL SITE

VISIT WILL BE HELD.

Materials and Specifications:

7. PVC or TPO? Is 60 mil required?

AE RESPONSE: EITHER PVC OR TPO IS ACCEPTABLE. THE BASIS OF

DESIGN IS 60MIL SEE SPECIFICATIONS. HOWEVER, THE VENDOR

WARRANTY SHOULD GOVERN:

07 54 19

1.10 WARRANTY

A. CONSTRUCTION WARRANTY: FAR CLAUSE 52.246-21, "WARRANTY

OF CONSTRUCTION."

B. MANUFACTURER'S WARRANTY: WARRANT ROOFING SYSTEM

AGAINST MATERIAL AND MANUFACTURING DEFECTS AND AGREE TO

REPAIR ANY LEAK CAUSED BY A DEFECT IN THE ROOFING SYSTEM

MATERIALS OR WORKMANSHIP OF THE INSTALLER.

1. WARRANTY PERIOD: 20 YEARS. BASIS OF DESIGN IS A 60MIL.

HOWEVER, KEY CONCERN IS OBTAINING VENDOR WARRANTY.

8. Is a 20-year weather tight warranty required?

AE RESPONSE: SEE 07 54 19

1.10 WARRANTY

A. CONSTRUCTION WARRANTY: FAR CLAUSE 52.246-21, "WARRANTY

OF

CONSTRUCTION."

B. MANUFACTURER'S WARRANTY: WARRANT ROOFING SYSTEM

AGAINST MATERIAL AND

MANUFACTURING DEFECTS AND AGREE TO REPAIR ANY LEAK

CAUSED BY A DEFECT

IN THE ROOFING SYSTEM MATERIALS OR WORKMANSHIP OF THE

INSTALLER.

1. WARRANTY PERIOD: 20 YEARS.

9. What R Value is required for the insulation?

AE RESPONSE: CONTRACTOR IS TO ASSUME ALL SUBSTRATE

CONDITIONS FOR LOW SLOPE ROOFS ARE LEVEL AND THE ¼” PER 12”

IS OBTAINED BY STARTING AT THE RECESSED ROOF DRAIN AND

GOES UP TO A PICK DIVIDING THE SPACES EVENLY. SHALL PROVIDE

A INSULATION SHEET AND TAPER SHOP DRAWING SHOWING

FASTENER LOCATIONS TO ACHIEVE THE CORRECT UPLIFT.

INSULATION SHALL BE PER 07 22 00 (FLAT SURFACES USUALLY HAVE

AN R-30 WITH A COMPLETE SYSTEM TO MAINTAIN AN R-25.

MANUFACTURER TO CONFIRM OVERALL SYSTEM COMPLIANCE AND

STATE THAT SYSTEM’S ACTUAL R VALUE)

PART 2 - PRODUCTS

2.1 SYSTEM PERFORMANCE

A. INSULATION THERMAL PERFORMANCE:

1. OVERALL AVERAGE R-VALUE: RSI-57 (R-25), MINIMUM.

2. ANY LOCATION R-VALUE: RSI-17 (R-10), MINIMUM.

10. What gauge will the flashings, gutters and downspouts be if any 24 gauge?

AE RESPONSE: SEE 07 60 00 2.12 CONDUCTORS – 16 GAUGE

FABRICATE CONDUCTOR BRACKETS OR HANGERS OF SAME

MATERIAL AS CONDUCTOR,

2 MM (1/16 INCH) THICK BY 25 MM (ONE INCH) MINIMUM WIDTH.

FORM TO SUPPORT CONDUCTORS 25 MM (ONE INCH) FROM WALL

SURFACE IN ACCORDANCE WITH ARCHITECTURAL SHEET METAL

MANUAL FOR RECTANGULAR AND ROUND SHAPES.

11. Will a coverboard be required? If so, thickness?

AE RESPONSE: SEE 07 22 00

1.1 SUMMARY

A. SECTION INCLUDES:

B. ROOF AND DECK INSULATION, SUBSTRATE BOARD, COVER BOARD

ON EXISTING

CONCRETE AND METAL DECK SUBSTRATES READY TO RECEIVE

ROOFING OR

WATERPROOFING MEMBRANE.

2.5 INSULATION ACCESSORIES

C. COVER BOARD:

1. GLASS-MAT, WATER-RESISTANT GYPSUM ROOF BOARD: ASTM

C1177/C1177M, 13 MM (1/2 INCH) THICK, FACTORY PRIMED

12. Will walk pads be required? If so, how many?

AE RESPONSE: CONTRACTOR SHALL PROVIDE HEAT WELDED WALK

PADS, PEEL AND STICK ARE NOT ALLOWED. PROVED WALK PADS

FROM EGRESS POINT TO THE SERVICEABLE EQUIPMENT, FANS,

MOTORS, FILTER ACCESS, AND ANY DEVICE NEEDING SEASONAL

CARE. THE CONTRACTOR WILL PROVIDE A SHOP DRAWING FOR

APPROVAL WITH WALK PADS CONNECTING ALL POINTS OF TRAVEL

TO THE SERVICEABLE EQUIPMENT. THIS SUBMITTAL WILL ALSO

ADDRESS THAT THE WALK PADS MEET THE UPLIFT REQUIREMENTS

OF THE ROOFING SYSTEM AND COMPLY WITH THE WARRANTY

STANDARDS.

13. Will the metal decking be B-Decking? What gauge?

AE RESPONSE: ESTIMATE 16GA B-DECKING SHIMS MAY BE

REQUIRED TO ADJUST TO EXISTING CONDITIONS. WHEN POSSIBLE

MATCH EXISTING HOWEVER NOT ALL DECK FLUTES ARE AVAILABLE

SO TRANSITIONS WILL BE NEEDED.

14. Are shop drawings provided for each roof location?

AE RESPONSE: YES, THE CONTRACTOR SHALL PROVIDE A SHOP

DRAWING OF EACH SPACE. THIS SHOP DRAWING WILL BE USED AS

AN INSPECTION BOOK. 11X19 IN SIZE FOR EASY CQC ONSITE

INSPECTION, THIS BOOK WILL IDENTIFY THE VARIOUS

CONNECTIONS WITH NOTATIONS AND EACH ROOF AREA WILL BE AN

INDEPENDENT DOCUMENT.

15. The documents mentioned either PVC or TPO roofing. Is 60 Mil the standard for both membrane types?

AE RESPONSE: CORRECT, EITHER PVC OR TPO IS ACCEPTABLE. THE

BASIS OF DESIGN IS 60MIL SEE SPECIFICATIONS, HOWEVER, THE

VENDOR WARRANTY SHOULD GOVERN:

07 54 19

1.10 WARRANTY

A. CONSTRUCTION WARRANTY: FAR CLAUSE 52.246-21, "WARRANTY

OF CONSTRUCTION."

B. MANUFACTURER'S WARRANTY: WARRANT ROOFING SYSTEM

AGAINST MATERIAL AND MANUFACTURING DEFECTS AND AGREE TO

REPAIR ANY LEAK CAUSED BY A DEFECT IN THE ROOFING SYSTEM

MATERIALS OR WORKMANSHIP OF THE INSTALLER.

1. WARRANTY PERIOD: 20 YEARS.

16. There are many types of warranties available for membrane roofing. Is a 20-year Watertight warranty required for this project?

AE RESPONSE: THE BASIS OF DESIGN WAS 60MIL SEE

SPECIFICATIONS:

07 54 19

1.10 WARRANTY

A. CONSTRUCTION WARRANTY: FAR CLAUSE 52.246-21, "WARRANTY

OF CONSTRUCTION."

B. MANUFACTURER'S WARRANTY: WARRANT ROOFING SYSTEM

AGAINST MATERIAL AND MANUFACTURING DEFECTS AND AGREE TO

REPAIR ANY LEAK CAUSED BY A DEFECT IN THE ROOFING SYSTEM

MATERIALS OR WORKMANSHIP OF THE INSTALLER.

1. WARRANTY PERIOD: 20 YEARS.

17. What is the insulation R value required for the roof insulation?

AE RESPONSE: CONTRACTOR IS TO ASSUME ALL SUBSTATE

CONDITIONS FOR LOW SLOPE ROOFS ARE LEVEL AND THE ¼” PER 12”

IS OBTAINED BY STARTING AT THE RECESSED ROOF DRAIN AND

GOES UP TO A PICK DIVIDING THE SPACES EVENLY. SHALL PROVIDE

A INSULATION SHEET AND TAPER SHOP DRAWING SHOWING

FASTENER LOCATIONS TO ACHIEVE THE CORRECT UPLIFT.

INSULATION SHALL BE PER 07 22 00 (FLAT SURFACES USUALLY HAVE

AN R-30 WITH A COMPLETE SYSTEM TO MAINTAIN AN R-25.

MANUFACTURE TO CONFIRM OVERALL SYSTEM COMPLIANCE AND

STATE THAT SYSTEMS ACTUAL R VALUE)

PART 2 - PRODUCTS

2.1 SYSTEM PERFORMANCE

A. INSULATION THERMAL PERFORMANCE:

1. OVERALL AVERAGE R-VALUE: RSI-57 (R-25), MINIMUM.

2. ANY LOCATION R-VALUE: RSI-17 (R-10), MINIMUM.

18. Please provide the required gauge for flashing, gutters, and downspouts.

AE RESPONSE: SEE 07 60 00 2.12 CONDUCTORS – 16 GAUGE

FABRICATE CONDUCTOR BRACKETS OR HANGERS OF SAME

MATERIAL AS CONDUCTOR,

2 MM (1/16 INCH) THICK BY 25 MM (ONE INCH) MINIMUM WIDTH.

FORM TO SUPPORT CONDUCTORS 25 MM (ONE INCH) FROM WALL

SURFACE IN ACCORDANCE WITH ARCHITECTURAL SHEET METAL

MANUAL FOR RECTANGULAR AND ROUND SHAPES.

19. Will a coverboard be required under the membrane? If so, what is the expected thickness?

AE RESPONSE: SEE 07 22 00

1.1 SUMMARY

A. SECTION INCLUDES:

B. ROOF AND DECK INSULATION, SUBSTRATE BOARD, COVER BOARD

ON EXISTING

CONCRETE AND METAL DECK SUBSTRATES READY TO RECEIVE

ROOFING OR

WATERPROOFING MEMBRANE.

2.5 INSULATION ACCESSORIES

C. COVER BOARD:

1. GLASS-MAT, WATER-RESISTANT GYPSUM ROOF BOARD: ASTM

C1177/C1177M, 13 MM (1/2 INCH) THICK, FACTORY PRIMED

20. Will walkway pads be required? If so, what is the pad sequence?

AE RESPONSE: CONTRACTOR SHALL PROVIDE HEAT WELDED WALK

PADS, PEEL AND STICK ARE NOT ALLOWED. PROVED WALK PADS

FROM EGRESS POINT TO THE SERVICEABLE EQUIPMENT, FANS,

MOTORS, FILTER ACCESS, AND ANY DEVICE NEEDING SEASONAL

CARE. THE CONTRACTOR WILL PROVIDE A SHOP DRAWING FOR

APPROVAL WITH WALK PADS CONNECTING ALL POINTS OF TRAVEL

TO THE SERVICEABLE EQUIPMENT. THIS SUBMITTAL WILL ALSO

ADDRESS THAT THE WALK PADS MEET THE UPLIFT REQUIREMENTS

OF THE ROOFING SYSTEM AND COMPLY WITH THE WARRANTY

STANDARDS.

21. What will be the required gauge for roof decking?

AE RESPONSE: ESTIMATE 16GA B-DECKING SHIMS MAY BE

REQUIRED TO ADJUST TO EXISTING CONDITIONS. WHEN POSSIBLE

MATCH EXISTING HOWEVER NOT ALL DECK FLUTES ARE AVAILABLE

SO TRANSITIONS WILL BE NEEDED.

22. Is there a specified manufacturer of the membrane roofing?

AE RESPONSE: NO

23. Please confirm the required roofing system for each building and roof area, specifically identifying where PVC and TPO roofing are required.

AE RESPONSE: EITHER IS ACCEPTABLE. GIVEN POTENTIAL

MATERIAL PROCUREMENT ISSUES, WE ARE OFFERING EITHER

SYSTEM AS ACCEPTABLE AS LONG AS VENDOR WARRANTY IS MET.

THE PROJECT TIME LINE MAY DICTATE WHAT IS AVAILABLE TO

ACHIEVE THIS GOAL.

24. Please confirm the required phasing of the roofing work and advise if any portions are restricted to after-hours or weekend performance.

AE RESPONSE: CONTRACTOR WILL PROVIDE A PHASING PLAN FOR

APPROVAL. ANY INTERIOR WORK, ENTRANCE, EMERGENCY EXIT,

DELIVERY SHUT DOWNS, AND ANY ACTIVITY THAT HENDERS THE VA

STAFF OR CLIENTS WILL BE PREFORMED ON AN AFTER REGULAR

HOUR SHIFT. LIKEWISE, ANY WORK PREFORMED IN AREAS WITH

OVERNIGHT STAFF OR CLIENTS WILL REQUIRE LIMITED WORK

HOURS. AT NO TIME DURING YOUR PHASING PLAN ARE YOU

PERMITTED TO CLOSE MORE THAN ONE EXIT. DURING THOSE

CLOSURES INTERIOR SIGNAGE WILL BE PROVIDED AS WELL AS

EXTERIOR SIGNAGE BOTH AT THE DOOR AND AGAIN AT THE

NEAREST INTERSECTIONS. EXTERIOR SIGNAGE WILL MEET DOT

SPECIFICATION AND MUST BE READABLE FROM 50 FEET. ALL

CLOSURES SHALL BE A TASK ON THE PROJECT SCHEDULE. EACH

PHASE WILL HAVE A START TASK, CONTRACTOR AHA TASK,

CONTRACTOR INSPECTION (PUNCH LIST) CONTRACTOR PUNCH

CORRECTION DURATION USUALLY 7 DAYS, ROOFING

MANUFACTURER INSPECTION TASK. DURATION TO OBTAIN LETTER

OF WARRANTY, MILESTONE TASK FOR LETTER TO REQUEST FINAL

INSPECTION, UPON THAT REQUEST YOU WILL HAVE SUBMITTED

YOUR COMPLETE PUNCH LIST, ROOFERS LETTER OF WARRANTY. A

14-DAY DESIGN REVIEW DURATION TASK OF THE DOCUMENTS WILL

BE PROVIDED, THEN A VA/DESIGN TEAM FINAL INSPECTION TASK.

DURING THAT INSPECTION THE CONTRACTOR WILL PROVIDE

ACCESS, A LIFT, A LIFT DRIVER, PPE, AT THE CONTRACTORS EXPENSE

TO FACILITY THE FINAL INSPECTION. THE CQC WILL BE PRESENT

AND WILL REPORT ALL FINDING IN A PHOTOGRAPH ISSUED REPORT.

25. Please clarify the extent of plumbing and mechanical work included in the roofing contractor’s scope, specifically regarding penetrations, drains, curbs, and rooftop equipment.

AE RESPONSE: ALL WORK SHOULD BE COORDINATED WITH THE

LEAD CONTRACTOR AND CLARIFIED WITH VA COR. THE TYPICAL IS

FOR THE ROOFING CONTRACTOR’S SCOPE OF WORK LIMITED TO THE

FOLLOWING ITEMS DIRECTLY RELATED TO THE ROOF SYSTEM (PER

DIVISION 07 AND THE PROJECT DRAWINGS):

REMOVAL AND REINSTALLATION OF ROOF-MOUNTED PLUMBING

VENTS, PIPES, AND FLASHING BOOTS.

REMOVAL AND REINSTALLATION OF MECHANICAL CURBS,

EQUIPMENT SUPPORTS, AND DUCT PENETRATIONS THAT PENETRATE

THE ROOF MEMBRANE.

PROPER FLASHING, COUNTERFLASHING, AND SEALING AROUND ALL

EXISTING AND NEW ROOF PENETRATIONS (PLUMBING VENTS, HVAC

CURBS, EXHAUST FANS, ETC.).

COORDINATION WITH THE MECHANICAL AND PLUMBING

SUBCONTRACTORS FOR TEMPORARY

DISCONNECTION/RECONNECTION OF EQUIPMENT AS REQUIRED TO

PERFORM THE ROOFING WORK.

RAISING OF CURBS OR PIPES (IF SHOWN ON DRAWINGS) TO ACHIEVE

THE REQUIRED MINIMUM FLASHING HEIGHT (TYPICALLY 8" ABOVE

THE FINISHED ROOF SURFACE).

THE ROOFING CONTRACTOR IS NOT RESPONSIBLE FOR THE

FOLLOWING:

ANY INTERIOR PLUMBING OR MECHANICAL MODIFICATIONS.

REWORK, RELOCATION, OR REPLACEMENT OF PLUMBING LINES,

DRAINS, OR MECHANICAL DUCTWORK INSIDE THE BUILDING.

ELECTRICAL WORK ASSOCIATED WITH MECHANICAL EQUIPMENT.

FURNISHING OR INSTALLING NEW MECHANICAL EQUIPMENT,

CURBS, OR VENTS UNLESS SPECIFICALLY INDICATED AS PART OF

THE ROOFING PACKAGE.

ALL OTHER PLUMBING AND MECHANICAL WORK (BEYOND THE

ROOF PENETRATION FLASHING AND COORDINATION) SHALL BE

PERFORMED BY THE RESPECTIVE PLUMBING AND MECHANICAL

SUBCONTRACTORS UNDER DIVISIONS 22 AND 23.IF THE CONTRACT

DOCUMENTS SHOW SPECIFIC ITEMS THAT APPEAR TO CONFLICT

WITH THE ABOVE, PLEASE IDENTIFY THE DRAWING SHEET AND

SPECIFICATION SECTION SO WE CAN PROVIDE FURTHER

CLARIFICATION OR A FORMAL PROPOSAL FOR ANY ADDITIONAL

SCOPE.

26. Please clarify the exact extent of the slate roof repair/replacement scope and confirm which portions are to be excluded under the deduct alternate

AE RESPONSE: CQC SHALL PREFORM AN EVALUATION USING THE

ALLOTTED QUANTITIES. IF THE QUANTITIES EXCEED THE ESTIMATE

THEY WILL NOTIFY THE VA COR. THE WORK AREA IS CAMPUS WIDE

SLATE BUILDING.

27. Slate tiles shown during the site visit measured 7"x14". The Slate tiles indicated on the drawings show dimensions of 14"x22". Which size is correct?

AE RESPONSE: CONTRACTOR IS TO MATCH EXISTING SIZE.

28. Both TPO and PVC roofing membranes are specified in the specifications section.

Is there a schedule of which roof areas receive TPO and which receive PVC, or are we allowed to pick a system for all roof areas?

AE RESPONSE: EITHER IS AUTHORIZED. GIVEN MATERIAL

PROCUREMENT ISSUES WE ARE OFFERING EITHER SYSTEM AS

ACCEPTABLE. THE PROJECT TIME LINE MAY DICTATE WHAT IS

AVAILABLE TO ACHIEVE THIS GOAL.

Hazardous Materials:

29. Are we to assume all roofs contain hazardous material and are to be abated?

AE RESPONSE: TO BE ADDRESSED IN SUBSEQUENT RESPONSE.

30. Are there any known areas of asbestos associated with any of the areas where work is to be performed? AE RESPONSE: TO BE ADDRESSED IN

SUBSEQUENT RESPONSE.

31. Seeing as how we were not able to access all the roofs is there any core information as to what the roofs contain?

AE RESPONSE: TO BE ADDRESSED IN SUBSEQUENT RESPONSE.

32. Are we to assume all roofs described in the project document contain hazardous material, or should we provide test results for all the roofs noted for renovation?

AE RESPONSE: TO BE ADDRESSED IN SUBSEQUENT RESPONSE.AE

RESPONSE.

33. Have the roofs been checked for asbestos? AE RESPONSE: TO BE

ADDRESSED IN SUBSEQUENT RESPONSE.

34. Do the membrane roofs being removed have a built-up system under them? If so do we just remove the membrane system or everything to the deck? If the membrane system only is to be removed, what is the requirement of the insulation?

AE RESPONSE: ASSUME ALL BUILD UP MUST BE REMOVED DOWN

TO SUBSTRATE LEVEL. ASSUME ALL FLAT SUBSTRATES ARE LEVEL,

AND BUILD UP REQUIRED TO ACHIEVE SLOPE OF ¼” PER 1’.

Repairs and Site Conditions:

35. How many locations for slate repair?

AE RESPONSE: CQC SHALL PREFORM AN EVALUATION USING THE

ALLOTTED QUANTITIES. IF THE QUANTITIES EXCEED THE ESTIMATE

THEY WILL NOTIFY THE VA COR. THE WORK AREA IS CAMPUS WIDE

SLATE BUILDING.

36. Are there any wall repairs? If so, where are they located? VA RESPONSE: SEE

SHEETS C6.AE102 AND C5.AE101 FOR DETAILS.

37. There are notes throughout the plans that simply state "prep and repair existing roof deck as required for new construction". What type of roof deck "repair" should be quoted and what qty of "repair" should be included in each GC's bid for each area. This info is needed to ensure all GC's are bidding the same scope.

Currently, any roof deck repair would be considered an "unforeseen" condition unless some type of qty is provided.

AE RESPONSE: ESTIMATE 16GA B-DECKING SHIMS MAY BE

REQUIRED TO ADJUST TO EXISTING CONDITIONS. WHEN POSSIBLE

MATCH EXISTING HOWEVER NOT ALL DECK FLUTES ARE AVAILABLE

SO TRANSITIONS WILL BE NEEDED. THE GOAL IS TO MATCH THE

EXISTING.

38. Reference sheet AE004 - various details. One example in detail C1 shows compressible tube to be by others, it also shows compressible insulation to be supplied by others. Please confirm if these items are to be furnished and installed as part of the roofing scope of if they will be by others.

AE RESPONSE: THE DETAILS READ FROM A ROOFING

MANUFACTURERS PROSPECTIVE. BY OTHERS SHALL BE BY THE

CONTRACTOR SUPPLING A COMPLETE SYSTEM. WHEN POSSIBLE

MAINTAIN MANUFACTURERS SYSTEM MATERIAL WHEN THIS IS NOT

AN OPTION LIKE SAY WOOD BLOCKING THEN REMOVE EXISTING

WOOD BLOCKING AND INSTALL NEW WOOD BLOCK THAT COMPLIES

WITH THE ROOFING MANUFACTURERS REQUIREMENTS. TO ADD ALL

WOOD BLOCKING SHALL BE NEW AND SIZED TO MATCH THE NEW

INSULATION AND INSTALLATION NEEDS.

39. Please clarify the full scope of lightning protection, including which areas require new installation, repair, or removal/reinstallation. Additionally, confirm if testing or recertification is required at project closeout.

AE RESPONSE: YES, REPLACE WITH NEW AS PER DRAWINGS.

40. Please clarify the extent of “minor exterior wall repairs” and “basement wall repairs,” including locations, materials, and whether sealants, masonry repairs, coatings, or waterproofing are included.

AE RESPONSE: REFER TO DRAWING SHEETS C6.AE102 AND C5.AE101

FOR DETAILS. SEAL ALL CRACKS AND GAPS WITHIN LEAKING

ABANDONED CONDUIT BOXES AS NOTED. CONTRACTOR TO:

1. IDENTIFY THE LEAK — LOCATE CRACKS, JOINTS,

HONEYCOMBS, OR SEEPAGE POINTS ON THE CONCRETE WALL

(OFTEN FROM THE NEGATIVE SIDE, I.E., INSIDE THE

STRUCTURE).

2. DRILL INJECTION PORTS — SMALL HOLES (USUALLY ½–¾ INCH

DIAMETER) ARE DRILLED AT INTERVALS ALONG OR

STAGGERED AROUND THE CRACK (TYPICALLY 6–12 INCHES

APART, ANGLED TO INTERSECT THE CRACK).

3. INSTALL PACKERS — MECHANICAL OR SURFACE PACKERS

ARE INSERTED INTO THE HOLES TO CREATE A SEALED ENTRY

POINT FOR THE RESIN.

4. INJECT THE POLYURETHANE RESIN — A LOW-VISCOSITY

LIQUID PU RESIN IS PUMPED IN UNDER PRESSURE (LOW TO

HIGH PRESSURE, DEPENDING ON THE SYSTEM).

• IT REACTS WITH WATER/MOISTURE INSIDE THE CRACK

OR VOID.

• THE RESIN EXPANDS RAPIDLY (UP TO 20–40 TIMES ITS

VOLUME IN SOME HYDROPHILIC TYPES) INTO A

FLEXIBLE, TOUGH FOAM OR GEL THAT FILLS THE

CRACK, VOIDS, AND IRREGULARITIES.

5. CURE AND SEAL — THE FOAM CURES QUICKLY (SECONDS TO

MINUTES) TO FORM A PERMANENT, WATERTIGHT, FLEXIBLE

GASKET. EXCESS MATERIAL IS CLEANED UP, AND PORTS ARE

REMOVED OR SEALED.. CRACKS AND LEAK PATHS EXCEEDING

¼" IN WIDTH, EXPOSING REBAR, OR LONGER THAN 10 FT

DISCOVERED DURING RESTORATION SHALL BE DOCUMENTED

WITH PHOTOS AND A WRITTEN REPORT PRESENTED TO THE VA

COR.

6. BASIS OF DESIGN SIKA INJECTION (E.G., SIKAFIX HH,

INJECTION-101/201)

CQC TO DOCUMENT CRACKS AND LEAK PATHS EXCEEDING ¼" IN

WIDTH, EXPOSING REBAR, OR LONGER THAN 10 FT DISCOVERED

DURING RESTORATION AND SHALL DOCUMENT WITH PHOTOS

AND A WRITTEN REPORT PRESENTED TO THE VA COR PRIOR TO

CONSTRUCTION.

41. Please clarify if any temporary interior protection, dust protection, or occupied-space measures beyond standard temporary dry-in are required.

AE RESPONSE: IN ACTIVE CORRIDORS USE A SOLID WALL SYSTEM

OR CONSTRUCT A METAL STUD AND DRYWALL SYSTEM FLOOR TO

CEILING.

AT ACTIVE DOORS WITH WORK BEING COMPLETED OVERHEAD

PROVIDE A SCAFFOLD TUNNEL ACCESS OUT BEYOND THE HEIGHT

DISTANCE WITH ENGINEER APPROVE PLANS AND PLYWOOD TO

MAINTAIN A SAFE EGRESS ZONE. THE CQC WILL SET THESE AREAS

UP BASED ON TIME OF DAY, PHASING AND THE WORK

REQUIREMENTS. IF SHORT CLOSURES FOR LESS THAN 30 MINUTES

IN AN ACTIVE AREA MAINTAIN A WATCH INSIDE AND A SEPARATE

WATCH OUTSIDE TO DIVERT TRAFFIC. IN NON ACTIVE OR NIGHT

CLOSURES PROVIDE A COMPLETE ZIP-WALL SYSTEM WITH PLASTIC

AND WALL AND CEILING SEALS AND IF YOUR PRODUCING DUST OR

FUMES. FILL OUT THE ICRA FORM COORDINATE WITH THE VAIH AND

FOLLOW STANDARD ICRA PROCEDURES.

42. The project title mentions Wall repair. Where is the wall repair located? VA

RESPONSE: SEE SHEETS C6.AE102 AND C5.AE101 FOR DETAILS.

Mechanical and Plumbing:

43. For the plumbing stack and drain replacement. How much of the interior portion of the pipes are we to figure for replacement? AE RESPONSE: REPLACE

THE DOWN PIPE FROM THE DRAIN AND 20’ OF PIPE OR TO THE

NEAREST CONNECTION. ASSUME DUCTILE IRON PIPE AND RUBBER

NO HUB CONNECTIONS. CQC TO TORQUE 5% OF ALL NO HUB

CONNECTIONS.

44. Is the slope to the drains in the deck or the built-up? AE RESPONSE: ASSUME

ALL SUBSTRATES ARE FLAT AND BUILD UP WILL BE REQUIRED VIA

INSULATION TO ACHIEVE MINIMUM OF ¼” PER 1 FOOT.

Miscellaneous:

45. Are all the solar panels to be disposed of once removed? VA RESPONSE: YES, DISPOSE OR RECYCLE, THEY ARE PAST THEIR USEFUL LIFE.

AE RESPONSE: ONCE REMOVED THEY ARE THE PROPERTY OF THE

CONTRACTOR AND MUST BE LEGALLY HANDLED.

46. Will the original Pre-Bid Site Visit sign in sheet be posted on SAM.gov? VA

RESPONSE: WILL BE POSTED WITH RFI RESPONSES

47. Has there been any core samples done on the roofs, and if so, what are the depths, and deck types? AE RESPONSE: TO BE ADDRESSED IN SUBSEQUENT

RESPONSE.

48. What type of roof deck “repair” should be quoted and what qty of “repair” should be included in each GC’s bid for each area. This info is needed to ensure all GC’s are bidding the same scope. Currently, any roof deck repair would be considered an “unforeseen” condition unless some type of qty is provided.

AE RESPONSE: CONTRACTOR SHOULD EXPECT 10,000 SF OF ROOF

DECK REPLACEMENT DUE TO ROT. ALSO, THE CONTRACTOR

SHOULD EXPECT TO REMOVE 4’ IN ALL DIRECTIONS AROUND NEW

OR EXISTING ROOF HATCHES. ALL HATCHES SHALL BE EPOXY

PRIMED AND RECEIVE TWO COATS OF URETHANE PAINT COLOR BY

COR. THESE WILL ALSO GET NEW WOOD BLOCKING AND ANY

UNUSED HATCH COVER WILL GET FILLED WITH INSULATION OR

WILL BE REMOVED AND DECKED OVER. VA COR WILL COORDINATE

THOSE NEEDS BASED ON THE CQC EVALUATION PRIOR TO STARTING

WORK IN THAT AREA. DESTRUCTIVE REVIEW WAS NOT PERMITTED

DURING DESIGN THE CQC WILL BE MORE INVASIVE AND WILL CUT

OUT 12” X 12” DESTRUCTIVE HOLES THEN WATER TIGHT THESE

INSPECTION POINT UNTIL THAT PHASE OF WORK COMMENCES.

49. Are there any as-builts of the current roof areas?

VA Response: Utilize the plans and specifications provided in the solicitation.