W912KC-11-R-0002-0002.doc

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SECTION SF 30 - BLOCK 14 CONTINUATION PAGE

The following have been added by full text:

Q & A (TWO)

SOLICITATION #: W912KC-11-R-0002

PROJECTS: (JLSQ092024/092025) Repair Hangar Exteriors (Buildings 301/302) Responses to ContractorS Questions & NOTES - 2

TECHNICAL / ENGINEERING QUESTIONS

Q1) Architectural drawings reference new roof drains at various points in the new roofing.... Please provide the basis for design, including manufacturer and model number for the new roof drains.

A1) There is not a basis of design to reference for the roof drains/downspouts. We will add the following note to our details at roof drains: “Note: Roof drain to be sized to match existing roof drain and to comply with warranty requirements for EPDM warranty. Roof drain is to be cast iron.”

Q2) Specification 233113 Section 3.7 "Duct Cleaning" indicates new and existing duct systems to be cleaned before testing, adjusting, and balancing.... Please provide existing duct drawings to allow for accurate pricing of this requirement.

A2) Duct cleaning is only limited to those portions of the duct accessible from the mechanical system removal and reinstallation. It is meant to direct the contractor to clean and remove any debris that may have been introduced into the system from the other trades work.

Q3) Drawings and construction sequences reference "replacement of curbs under mechanical equipment, etc. Specification 077200 Section 2.3 notes that new curbs where indicated are to be provided with integral spring-type vibration isolators. This requirement is not indicated for any curbs. Are any vibration curbs required on this project?

A3) The existing equipment should have internal vibration isolation and would not need vibration isolation on the new curbs.

Q4) Drawings and construction sequences reference "replacement of curbs under mechanical equipment, etc." Is it the intent of the owner that all curbs for fans, piping, roof top equipment, duct, and electric be replaced to the existing metal deck? Or will the owner accept adding metal or weather resistant wood extensions to the existing curbs?

A4) The intent is to install new roof curbs of the proper height for the new roof. Existing ductwork may have to be extended as well for the taller roof curbs.

Q5) The mechanical, electrical, and plumbing (MEP) trades construction work is spread over various building locations. Bid breakdowns for the (2) hangars are not clear where the mechanical (units’ removal/reinstallation, duct revisions, curbing replacements), piping, electrical, and plumbing construction costs are to be carried. Please advise which of the CLIN numbers the MEP costs are to be carried.

A5) The MEP work associated with the roof replacement should be included in the Sustainment Repair (Roof Repair) CLIN number item for each respective building. Any remaining MEP work that is not directly related to the work being done on the roof of Building 301 and/or Building 302 should be included in the Restoration Modernization Repair CLIN for each building as appropriate, based on the work item in question.

Q6) Fire protection/sprinkler piping is present throughout the complex. There is no mention of sprinkler renovations on the drawings. Please confirm that there is no fire protection/sprinkler work required for the project.

A6) There is no fire protection/sprinkler work required for this project.

Q7) Site drawing C-502 reflects detail 5 "Downspout Tie-in to Existing Storm Drain Pipe". Existing storm/downspouts have cleanout tees before the pipe enters the ground. Will the new downspouts require clean-out tees?

A7) Current design calls for a cast iron downspout shoe. Contractor should use a cast iron shoe with cleanout (like Neenah R-4929 or similar). Drawing C-502, Detail 5 has been updated to reflect this revision as noted on the plan sheet included with this Amendment.

Q8) There are several wall mounted exhaust fans that will be removed and remounted on the new wall panel system. Please provide a detail for supporting/reinforcing of the wall panel system at these locations.

A8) Frame all duct and fan openings with 6” deep cold-formed metal framing.

Q9) Specification 074216 - Section 2.4.C requires the use of extrusion trim. Drawing A-310, Detail 2, calls for Metal Flashing. Is sheet metal flashing an approved material?

A9) Specification is correct; provide extrusion trim and metal flashing in addition to extrusion trim. Drawings are to be revised and reissued in Amendment 002.

Q10) Regarding Specification 074113 - 2.7 Metal Soffit Panels. Where does this apply?

A10) Metal Soffit Panel paragraph to be deleted from Specification 074113 “Metal Roof Panels” in revised specification in Amendment 002.

Q11) On Drawing A-601, per the Door Schedule, Doors 101, 156, 159, & 171 are to receive card readers. Regarding Specification 087100, “Door Hardware”, the only hardware set that requires a card reader is HW Set 06 which only applies to door 156. Please clarify.

A11) Only Door 156 has a card reader. Card reader requirements on Sheet A-601 for Doors 101, 159 and 171 will be revised in Amendment 002.

Q12) On Drawing A-102, Hangar 302, Mechanical Room 2's square footage is larger than it appears to be on Drawing A-202, Detail 1. Please clarify

A12) Floor plans are to be revised to show the correct size of Mechanical Room 2 in Amendment 002.

Q13) On Drawing A-313, Detail 5 is the only detail requiring bituminous waterproofing at the existing foundation wall and new concrete ledge. Is bituminous waterproofing required at all new and existing foundation walls and new concrete ledge locations?

A13) At all locations where grade is higher than the floor level, CMU or concrete wall is to receive sheet membrane waterproofing.

Q14) The fall protection lifelines are shown on: (1) The crest of each barrel roof; (2) On the sloping gable roofs of the new door support structures, and (3) To follow the curved barrel roof at the north end of each hangar. At locations 2 and 3 there is a danger that the user could fall down the slope of the roof as well as vertically off the side. However, the specified Flex-ridge product does not have a locking trolley to guard against falls down the slope. Please explain the design intent and whether or not the completed fall protection system is to protect against falls down the roof slope.

A14) Specification 055001, Roof Top Fall Protection, will be revised in Amendment 002.

Q15) Under Specification “Metal Roof Panels”, 074113 – 6, it states the color to be “Hunter Green” while it was stated the roof would be “White”. Please clarify true color and correct specification as needed.

A15) Specification 074113 Metal Roof Panels will be revised in Amendment 002.

Q16) The project states to replace damaged insulation but there is no quantity provided. How is that item to be estimated for pricing?

A16) See Specification 075300 “Fully Adhered Standard Adhesive EPDM Roofing System”

Q17) Which rooms are to the bathrooms (to be tiled on the wall)?

A17) Rooms 212, 229, and 251 are bathrooms that each have two windows requiring tiling work, for a total of six windows. Of note, Room 242 is a locker room adjoined to Room 229 that has two windows as well, but the finish is similar to other non-tiled windows on the same floor.

Q18) Door #301 is on the door schedule, but yet there is no hardware listed for it.

A18) The Specification 087100, “Door Hardware”, will be revised in Amendment 002 to show hardware for this door.

Q19) Doors #159 and #171 call for card readers but the hardware that is listed under hardware set #10 is not compatible.

A19) Only Door 156 has a card reader. Card reader requirements on Sheet A-601 for Doors 101, 159, and 171 will be revised in Amendment 002.

Q20) Door #178 is listed in hardware set #05 but there is another 178A in hardware set #07 that is not on the door schedule.

A20) Door 178A will be deleted in Amendment 002.

Q21) Please confirm EPDM color with respect to SSSM barrel roof color.

A21) EPDM color to be white. SSSM color to be Stone White. Changes are to be in Amendment 002.

Q22) Are there any structural stability issues due to wind uplift or other forces in the period between when the existing doors, metal skin, and support structure are demolished (essentially creating an open end condition of the hangar building) until the new structure, exterior panels, and fabric door are installed? If so, what are the temporary support requirements for the existing structure that remains in place?

A22) No additional bracing is required to accommodate wind load. The building typically functions as an open structure.

Q23) Specification 087100, Door Hardware: Hardware Set 07 is required at Door 178A. Door 178A does not appear in the door schedule. Please clarify.

A23) The Specification 087100 Door Hardware will be revised in Amendment 002 to show Door 178A deleted.

Q24) Drawing A-601, Door Schedule: Door 301 does not appear on the drawings or in the hardware specification. Please clarify.

A24) Door 301 is the door to the roof at the stairwell. The door and door number are called out on revised sheet A -111, Amendment 0002. The Specification Section 087100 Door Hardware will be revised in Amendment 002 to show hardware for this door.

Q25) General, Demo Drawing AD-111: Hex note “R” states to demo shingles, roof, and structure. Hex Note “S” states to demo only the EPDM roof. Please clarify which note applies.

A25) At roof over Room B15 (see sheet A-100 for room nomenclature), see added note Y on revised sheet AD-111 in Amendment 002.

Q26) Division 7, Specification 074113, Page 3, 1.7.A.1., states that the "Contractor's Five Year No-Penal-Sum Warranty for Non-Structural Metal Roof System" is attached at the end of the section. It is not attached. Please provide a copy of this warranty.

A26) Wording “attached at the end of this section” will be deleted in Amendment 002.

Q27) Division 7: The building sections on Drawings A-301 and A-302 appear to show that the metal roof panels on the barrel vaulted areas are "chorded" and not curved. Curved is more expensive to manufacture. Please indicate if the Barrel Roof area is curved or articulating.

A27) Drawings will be revised in the Amendment 002 to show metal roof panels to be curved and continuous from eave to eave, no splice joints, and no panel laps.

Q28) Division 7: Please provide a specification for the roof curbs that are to be installed at the perimeter base flashing conditions (see details 1&2/A321).

A28) Specification 077200 “Roof Accessories” will be revised in Amendment 002.

Q29) Division 7: Regarding Specification-Page 074113-5, 35 PSI polyisocyanurate insulation does not exist. 25 PSI is the highest compressive strength available for this type of insulation. Please clarify insulation.

A29) See revised Specification 074113 “Metal Roof Panels”.

Q30) Division 7: Please provide a specification for the “Horizontal Ridge Mounted Track System – Fall Protection Device”. See Detail 2 on Drawing A-312.

A30) See Specification 055001 “Rooftop Fall Protection Systems”

Q31) Division 7: Some of the fascia details (Reference 5, Drawing A-324) show a pencil rib protruding from the fascia. The specified fascia system, Firestone “Edgegard” (reference 075300-9), does not have this pencil rib as an option. Please clarify.

A31) As per Firestone EPDM roofing systems manual, optional gravel stop (pencil rib) is not required.

Q32) Division 7, Drawing A-112 indicates Roof Walk Pads but these are not shown. Please provide locations for the Roof Walk Pads.

A32) See revised drawings A-111 and A-112 in Amendment 002 with walk pads shown.

Q33) Division 7, Specification 075300: Are there any Factory Mutual requirements for wind uplift? Please clarify.

A33) See Technical/Engineering Notes – item number 6 below for additional guidance.

Q34) Division 7: Is there any extended roof manufacturer’s warranty required other than the 55 mph requirement? Please clarify.

A34) See Specification 075300, “Fully Adhered Standard Adhesive EPDM Roofing System”, and Specification 074113, “Metal Roof Panels”, for warranty requirements.

Q35) Division 8, Alternate #5 refers to adding two (2) operable windows in building 302A "Communications area" - rooms are not labeled by name, just room number. Please provide further details as to what windows are to be added/replaced.

A35) See revised sheet A-601 in Amendment 002 with added window type W-4.

Q36) Division 8: Aluminum doors and frames 159 and 171 are both called out with 1" insulated glass in doors, but frame type "2" that is called out shows 1/4" tempered laminated glass, not insulated glass—what is correct?

A36) See revised sheet A-601 in Amendment 002 with revised frame type 2.

Q37) Division 8, Specification 084523, Section 1.6.C.: Special Aluminum-Finish Warranty: The maximum warranty that Kalwall offers for finishes is 10 years starting at time of delivery. Some will be qualifying this in their bids and need this to be confirmed. Please clarify the warranty.

A37) Paragraph 1.6 C will be revised in the Amendment 002 to 10 years in lieu of 20 years.

Q38) Division 8, Specification 084523, Section 2.2.H.: The product needs to meet the DoD Minimum Antiterrorism Standards. We need to know if this building is within a controlled perimeter. Please clarify.

A38) As per Base direction this existing building meets the “Controlled Perimeter Location” and “Parking and Roadways within a Controlled Perimeter for a Primary Gathering Building using Conventional Construction”.

Q39) Division 8, Specification 084523: Does the product meet the conventional construction standoffs of UFC 4-010-01. If not, sub-contractors need to know what the design requirements are. (i.e., blast pressure to resist). Please clarify.

A39) As per Base direction this existing building meets the “Controlled Perimeter Location” and “Parking and Roadways within a Controlled Perimeter for a Primary Gathering Building using Conventional Construction”.

Q40) Division 8, Specification 084523, Section 2.5.A.: The finish required is not available with Kalwall thermally broken extrusions. Subcontractors can provide the color requested, but need to change the Finish to read...Exposed aluminum to be manufacturer's factory applied finish that meets the performance requirements of AAMA 2604. Please clarify.

A40) Specification 084523 Fiberglass-Sandwich-Panels Assemblies will be revised in Amendment 002.

Q41) Division 9: It is unclear from the drawings regarding which Rooms are Toilet Rooms receiving the new tile work. Please clarify the rooms for tile repair.

A41) Rooms 212, 229, and 251 are bathrooms that each have two windows requiring tiling work, for a total of six windows. Of note, Room 242 is a locker room adjoined to Room 229 that has two windows as well, but the finish is similar to other non-tiled windows on the same floor.

TECHNICAL / ENGINEERING NOTES

1. Change: Two windows on B301 near the southeast region will be blocked in rather than replaced to meet future communications room requirements. Issued for Construction (IFC) drawings will reflect the change. Bidders should adjust price accordingly to block in rather than to replace two windows. The two windows are the one in Room 104 and the one directly above that one in Room 205 (be aware there are two windows in Room 205).

2. INFORMATION: Existing insulation under EPDM Roof is 3-inches of polyisocyanurate.

3. SPECIFICATIONS: Delete the following Specification Sections:

1.

Table of Contents

2.

Section 07135 Sheet Membrane Waterproofing Bithuthene 300/Low Temperature Membrane and Hydroduct Drainage Composites

3.

Section 055001 Rooftop Fall Protection

4.

Section 074113 Metal Roof Panels

5.

Section 074216 Insulated Core Metal Wall Panels

6.

Section 075300 Fully Adhered Standard Adhesive EPDM Roofing System

7.

Section 076200 Sheet metal Flashings and Trim

8.

Section 077200 Roof Accessories

9.

Section 079200 Joint Sealants

10.

Section 084523 Fiberglass-Sandwich-Panel Assemblies

11.

Section 087100 Door Hardware

12.

Section 090500 Color and Finish Schedule

13.

Section 099123 Interior Painting

4. SPECIFICATIONS: Add the following Specification Sections, dated AMENDMENT 002, MAY 25, 2011:

1.

Table of Contents

2.

Section 07135 Sheet Membrane Waterproofing

3.

Section 055001 Rooftop Fall Protection

4.

Section 074113 Metal Roof Panels

5.

Section 074216 Insulated Core Metal Wall Panels

6.

Section 075300 Fully Adhered Standard Adhesive EPDM Roofing System

7.

Section 076200 Sheet metal Flashings and Trim

8.

Section 077200 Roof Accessories

9.

Section 079200 Joint Sealants

10.

Section 084523 Fiberglass-Sandwich-Panel Assemblies

11.

Section 087100 Door Hardware

12.

Section 090500 Color and Finish Schedule

13.

Section 099123 Interior Painting

5. DRAWINGS: The following are reissued Drawings (51 Total) as part of Amendment 002; Sheets are dated AMENDMENT 002, MAY 25, 2011:

G-003 Architectural Abbreviations, Symbols and General Notes

G-004 Roof Area Calculations

C-101 Site Plan (sheet is being reissued)

C-102 Site Plan (sheet is being reissued)

C-502 Construction Details

AE-112

East Roof Plan – Hangar 302 Existing

AD-100

Basement Plan – Hangar 301 – Demolition

AD-102

1st Floor Plan – Hangar 302 – Demolition

AD-111

Roof Plan – Hangar 301 – Demolition

AD-112

Roof Plan – Hangar 302 – Demolition

A-100 Basement Plan – Hangar 301 – Renovation

A-101 1ST Floor Plan – Hangar 301 – Renovation

A-102 1ST Floor Plan – Hangar 302 – Renovation

A-103 2ND Floor Plan – Hangar 301 – Renovation

A-104 2ND Floor Plan – Hangar 302 – Renovation

A-111 Roof Plan – Hangar 301 – Renovation

A-112 Roof Plan – Hangar 302 – Renovation

A-201 South Elevations – Renovation

A-202 North Elevations – Renovation

A-203 East – West Elevations – Renovation

A-204 South Elevations – Renovation ABI-1

A-205 North Elevations – Renovation ABI-1

A-206 East – West Elevations – Renovation ABI-1

A-207 South Elevations – Renovation ABI-2

A-208 North Elevations – Renovation ABI-2

A-209 East – West Elevations – Renovation ABI-2

A-301 Building Sections

A-302 Building Sections

A-310 Wall Sections

A-311 Wall Sections

A-312 Wall Sections

A-313 Wall Sections

A-314 Wall Sections – ABI-1 A-315 Wall Sections – ABI-2

A-316 Wall Sections – ABI-1, ABI-2

A-320 Details

A-321 Details A-322 Roof Details

A-323 Roof Details

A-324 Roof Details

A-325 Door & Roof Details

A-501 Plan Details

A-502 Plan Details

A-601 Door, Window Schedules and Interior Elevation

S-001 Structural General Notes

S-101 Structural Plans

S-102 Hangar Door Support Structure Plans and Elevation

S-301 Sections and Details S-302 Sections and Details

S-303 Sections and Details

S-304 Truss Sections and Details

6. INFORMATION: Regarding Wind Uplift pertaining to Question 33 above, during periods of high wind, the hangar bay doors should be closed if possible. During the period of time that a hangar bay cannot be closed, the existing siding on the rear wall of the hangar should be temporarily supported against out-of-plane wind pressure until it is replaced with new siding. As an alternative, the contractor may remove the existing siding and glazing and temporarily replace with plastic sheeting to provide moisture protection for the hangar bay. The contractor may also propose other methods to protect the rear wall from wind loads during construction. The existing roof design is adequate to resist uplift pressures of 70 mph winds with the hangar bay door open. If wind speeds greater than 70 mph are anticipated, the roof deck should be secured by applying ballast equal to 10 psf to the upper surface of the roof.

CONTRACTING QUESTIONS

Q1) The Bid Due date is currently scheduled for the day after Memorial day. Being a veteran I normally participate in community Memorial day activities. Can the Bid Due date be extended?

A1) Bid Due date has been extended to Friday, 03-June-2011, 4 p.m. (EST)

Q2) Concerning the Volume 2 Past and Present Experience, I am unable to determine whether or not you would like to see a proposed project team/personnel section with job descriptions and resumes, especially where they might or might not cross reference with our Exhibit A project team members.

A2) Information pertaining to key personnel is only required if the offeror is “lacking relevant present/past performance experience” as defined in section 3.4.2.9 (Page 24).

CONTRACTING NOTES

1. Ensure that you complete section 15 of all amendments (SF30) and submit (first page only) with your proposal package.

SECTION 00010 - SOLICITATION CONTRACT FORM

The required response date/time has changed from 31-May-2011 04:00 PM to 03-Jun-2011 04:00 PM.

(End of Summary of Changes)