RFI's - Repair Parachute Shop, 16jan20, 1327.xlsx
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- Attached to
- FTQW 19-1003 Repair Parachute Shop
- Solicitation number
- FA500420B0001
About this file
This document contains details for a federal contract opportunity to repair a parachute shop at Eielson Air Force Base in Alaska. The contract is seeking bids for upgrades to the exterior walls, roofing, structural, plumbing, HVAC, lighting, electrical and fire systems at Building 1161. The work includes interior configuration and architectural finishes as well as exterior utilities, access roads and site work. The government is considering a firm fixed price contract between $1 million and $5 million. Electronic bids will not be accepted. A pre-bid site visit will be held on December 19th and questions must be submitted by December 27th. Paper copies will not be available and all contractors must be registered in SAM. Bids are due by January 9th, 2020. Points of contact are provided for questions regarding this solicitation.
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Parachute Shop RFIs
| No. | Ref. | Request for Information | Response | Atachments |
| 1 | Drawing M0003 | GMT-1 Glycol Make-Up Tank is scheduled as Axiom model SF100. This unit is manufactured in Canada; is this acceptable? | Allowable due to NAFTA. | N/A |
| 2 | Drawing M0003 | CM-1 Condensate Meter is incorrectly scheduled as ¾” Badger RCDL M25 with high temperature bronze construction; that construction has not been available for about 20 years. Specification 23 22 26.00 20-2.1.4.1 correctly lists the meter as a stainless steel turbine meter; the smallest size is 2”. | CM-1 to be Blancett 110 turbine meter, stainless steel construction, 1" end connections, 3-30 GPM. Provide with Blancett B3000 flow monitor | N/A |
| 3 | Section 33 05 37.00 29 Heat Distribution Systems in Utilidors and Manholes | Paragraph 2.3 Valves specifies bronze valves for sizes 2” and smaller. These valves should be steel as no bronze or brass components are permitted in the steam distribution system. | Valves 2" and smaller: ASME class 800 gate valve. ANSI B16.34. Full port, threaded end, rising stem, bolted bonnet, solid wedge disc. Forces carbon steel body, bonnet. Corrosion resistant stem and disc. Malleable iron hand wheel. | N/A |
| 4 | Section 33 05 41.00 29 Utilidor System | Paragraph 2.1.1 requires coal tar coating for steel items within 18 inches of the utilidor floor. | Provide coating within 18" of the utilidor floor | N/A |
| 5 | Section 33 05 41.00 29 Utilidor System | Paragraph 2.5 requires coal tar coating for the lower 12 inches. Which is correct? | Provide coating within 18" of the utilidor floor | N/A |
| 6 | Specifications book 1 | In Book 1, pgs. 481-482 are cut off. | Replacement pages showing all data are provided. Reference attached file. | Geotech Report, liquefaction analysis summary-figures 1 and 2 |
| 7 | Specifications book 2 | In Book 2, Section 230923.0029 doesn't match the TOC. | Replace this specification with the attached 23 09 23 in its entirety. | 23 09 23_Revised |
| 8 | Sheet A800 | No wall type description W11-12C is listed, please provide. | Add detail W11-12C to A800 per attachment. | 021802 - A800 |
| 9 | Where are the metal stud spacing and gauge call outs for interior metal studs? Please provide. | 3 5/8" METAL STUDS (362S125-30 AT 16" ON CENTER) |
6" METAL STUDS (600S125-43 AT 16" ON CENTER)
| N/A | |||
| 10 | Sheet A500 | Sheet A500 lists an explanation for the various barriers listed in the exterior wall assemblies and refers to the material schedule, but no information is found in the material schedule for these callouts. Please provide. | 1. BE-A2 - Air Barrier - Submit under 07 21 19, Above Grade, Basis of Design; Tyvek Commercial Wrap by DUPONT Building Innovations. |
2. BE-W1 - 07 21 19, Water Resistive Barrier - Roof, Basis of Design; V-Force(Self Adhered) by Firestone Buildling Products
3. BE-W3 - 07 25 00, Air Barrier - Above Grade, 6 mil Polyethylene film
| 4. Delete 07 41 13-2.7 Underlayments. | N/A | ||
| 11 | Sec sec 33 05 37. 00 29 | Sec sec 33 05 37. 00 29 ( heat distribution in utilidors) , specifies a “nonmetallic jacket” for Molded Mineral fiber in the utilidor. 2.7.3 specifies Hypalon as this jacket, however this product is not availavle to our knowledge, and a foil scrim ASJ , All Service Jacket is normally used for this application. |
Will ASJ jacketing be allowed on Steam and Condenste lines in the utilidor starting 5 ft from the manhole?
| Yes, ASJ jacketing is acceptable. | N/A | |||
| 12 | Section 22 00 00 PLUMBING, GENERAL PURPOSE | Table II Pressure Piping is missing. | Replace this specification with the attached 22 00 00 in its entirety. | 22 00 00_Revised |
| 13 | drawing sheet M300 | It appears that there are two ¾” GHS pipes to CUH-1 in Vestibule 100. | There should be one 3/4" supply. Delete second supply shown. | N/A |
| 14 | drawing sheet M401 | No water piping is shown serving S-2 Tower Sink. | Route 3/4" cold and hot water from Mechanical 107 to S-2 | N/A |
| 15 | drawing sheet M401 | Is there no air compressor for the compressed air piping system? | The existing air compressor is not operational. A new air compressor is not part of this project (non-real property equipment item to be sourced by the AF at a later date). Compressed air piping should be capped in the tower as shown for future connection. | N/A |
| 16 | drawing sheet M401 | What piping materials are required for the 6” CW piping routed through the attic space to the Fire Suppression System? |
- Is this piping ductile iron IAW Section 33 05 29.00 29 or is it steel IAW Section 21 13 13.00 10.
- It could likely be steel fire protection piping if a backflow preventer were to be provided in Mechanical 107; see drawing 4/M600 Water Entrance Detail.
| Ductile Iron. | N/A | ||||
| 17 | drawing 2/M402 | Please advise actual angle of the utilidor change in direction located beneath the building. You should be able to verify from as-built record drawings. | The as-built drawings indicate 10 degrees (+/-). Field verify prior to installation of piping. | N/A | |
| 18 | drawing 1/M601 | Circulating pumps P-1A and P-1B are each shown to be provided with a balancing valve. However, these circulators are each powered through a variable frequency drive; are the balancing valves needed? | Balancing valves are not required at P-1A,B | N/A | |
| 19 | drawing 1/M601 | No isolation valve is shown on the suction side of circulating pumps P-1A and P-1B; are isolation valves required? | Provide isolation valves on the suction side of pumps P-1A and P-1B | N/A | |
| 20 | drawing 1/M601 | No sump pump is shown for the utility pit; is a sump pump needed? | No sump pump is required. | N/A | |
| 21 | drawing 3/M601 | No flexible pipe connectors are shown for piping at unit heater; are flexible pipe connectors required? | All Unit Heaters are 1/4 HP or less and therefore do not require flexible connections | N/A | |
| 22 | drawing 5/M601 | No flexible pipe connectors are shown for piping at coils; are flexible pipe connectors required? | Flexible connectors are not required at coils. | N/A | |
| 23 | Detail 2/S200 | Detail 2/S200 shows the entry foundation wall being constructed of CMU, is it acceptable to substitute a concrete stem wall or spread footing in lieu of CMU? | Construct as designed. | N/A | |
| 24 | Detail 2/S200 | Please provide a detail for attaching the ¾”x3” batten strips over the semi rigid rock wool without compressing the insulation. | Install batten with wood screws & control installation torque such that any compression of the rock wool insulation is uniform. We consider this to be means & methods as there are many practices and products for controlling compression of exterior insulation. Screw products like Heco Topix Therm Insulation Screw are specially built to eliminate the need for squash blocks or PVC sleeves. These specially designed full-thread screws are encouraged to aid in uniform compression but are not required. What is required is uniform & slight compression of the insulation such that the batten strips do not have a perceivable "waive". Deformations along the length of the batten less than 3/16" in 4' are considered acceptable. | N/A | |
| 25 | Sheet A900 | Bird Mitigation VYN-1 is not listed in the finish schedule on sheet A900, please provide product information. | VYN-1 basis of design is AZEK building products, traditional 1/2" sheet, painted to match adjacent surface. | ||
| VYN-2 basis of design is AZEK building products, traditional 1/2" sheet, painted to match adjacent surface. | N/A | ||||
| 26 | Sheet A900 | What is the existing roofing materials over existing roof structure? | See attached as-built drawings for existing roof framing information. Successful bidder to verify as-built condition prior to commencement of work. | 1951-12-10_Parachute Loft and Shop (as-builts) and 1992-04-15_Parachute Shop Addition (as-builts) | |
| 27 | Sheet A201 / Room 108 and sheets A410 & A510 | 5. Page A201 / Room 108 shows exterior walls “above roof” as WX-12A, but on pages A410 & A510 shows these wall (parapets) as WX-4A. Please clarify. Also, are these parapet walls remain as “existing” as per the other exterior walls, or are these parapets to be new framing? | |||
| 1. Drawings are correct. Walls below main roof adjacent to parachute drying tower are W11-12A, walls above main roof and below drying tower roof are WX-12A and walls above drying tower roof (parapet walls) are WX-4A. | |||||
| 2. Parachute drying tower parapets walls are new framing WX-4A per detail 1/A510. | N/A | ||||
| 28 | Sheet A510 / Detail 1 | Are these parapet cap assemblies existing and remain or are they new construction? | New Construction | N/A | |
| 29 | Sheet A800 | Most interior wall assemblies show stud bays with insulation but only a couple of the assembly details actually spell out / call for insulation – please clarify. | Provide full thick batt insulation where batt insulation graphic is depicted in wall assembly types. | N/A | |
| 30 | Sheet A800 | Wall detail, W11-6A shows a BE-W3 barrier. Is this your intensions for interior walls, specifically the office walls? | Yes | N/A | |
| 31 | Sheet A800 | “Air Barrier”, “Water Resistive Barrier”, “Vapor Retarder”, “Vapor Barrier”: Please clarify – Tyvek, Visqueen, Bituthane, Ice & Water Shield. Also, I can find no “modifiers” that clarifies the building envelope assemblies; BE-A#, BE-C#, BE-W#. Please provide. | Reference item #10 above. | N/A | |
| 32 | Spec section 07 27 10 paragraph 1.7 | See Spec section 07 27 10 paragraph 1.7 - AIR BARRIER INSPECTOR. Will the General Contractor/Subcontractor be required to hire / employ this inspector, or will the inspector be hired by the government? | |||
| Inspector shall be hired by the Contractor | N/A | ||||
| 33 | Spec section 07 27 10 paragraph 1.7 | Is the existing roof structure assembly built out of manufactured trusses – if not, what is the assembly? If it is a truss system, what is the existing bottom chord height? What is the finished ceiling height? | |||
| See attached as-built drawings for existing roof framing information. Successful bidder to verify as-built condition prior to commencement of work | 1951-12-10_Parachute Loft and Shop (as-builts) and 1992-04-15_Parachute Shop Addition (as-builts) | ||||
| 34 | Sheets A101 & A201 | 12. See page A101 & A201: The existing center span wall / W11-6B that runs north and south / left to right; what is the existing height of this wall – bottom of rafters or bottom of truss chord? If existing roof structure is NOT a truss system and the wall is framed full height to the bottom of the rafters, how will the new truss / full span trusses tie into that wall? Will this existing wall have to be cut down to the bottom chord of new trusses? | |||
| See attached as-built drawings for existing roof framing information. Successful bidder to verify as-built condition prior to commencement of work | 1951-12-10_Parachute Loft and Shop (as-builts) and 1992-04-15_Parachute Shop Addition (as-builts) | ||||
| 35 | Sheet A800 | See page A800 / W11-12A: Please clarify this wall assembly. A101 Demo Legend states to remove assembly to face of each side of stud, but the wall assembly on A800 shows existing ¾” diagonal lumber sheathing mains. The opposite side of this assembly shows exterior grade plywood. Is this existing and is it to remain? The same detail also states that plywood runs to 25’. What occurs above 25’? | |||
| 1. Existing 2x12 wood studs and diagonal lumber sheathing to remain. Provide full thick batt insulation with exterior grade plywood to 25'-0". Provide exterior grade plywood per structural on face of existing diagonal sheathing with 5/8" gypsum board. | |||||
| 2. Plywood to 25'-0" is per structural, above 25'-0" the gypsum board can be installed directly to face of existing diagonal sheathing. See details 1&2/A410. | N/A | ||||
| 36 | Sheet A800 | Do the existing exterior walls have ¾” diagonal sheathing or plywood? Is either to be removed? | Record documents identify diagonal lumber sheathing is on drying tower walls. | N/A | |
| 37 | Sheet A800 | At Vestibule 115, there’s a wall labeled, W11-12C. Please clarify the “C” modifier. We are assuming this is a 12” wall. | Reference Item #8 above. | N/A | |
| 38 | Sheets A201 & S211 | See pages A201 & S211; the interior wall that is to be framed against the west side of the Drying Tower is a W11-6A wall, which is called out as 6” metal studs on the Architectural Dwgs, but the Structural call it a 2x6 wall which insinuates that it is to be framed out of dimensional lumber. Please clarify. | Bearing wall to be constructed per structural documents. | N/A | |
| 39 | Spec. 22 00 00, 2.1 | Materials refers to Table II for the acceptable materials and joint methods for the domestic water system. However the table is not present at the end of the section. Please provide Table II. | Replace this specification with the attached Spec. 22 00 00 in its entirety. | 22 00 00_Revised | |
| 40 | Spec. 22 00 00, 3.8.4 | Operational Test says that “Such operating tests shall cover a period of not less than 8 hours for each system.” What is the intent of this specification? Is it to have the testing for operation take at least 8 hours for the whole system, or would each individual fixture, backflow preventer, and drain need to be operated continuously for 8 hours (i.e. leaving all the faucets open for 8 hours)? | See response to item #39 above. | 22 00 00_Revised | |
| 41 | Sheets A300 & A900 | Exterior Finish Legend and Elevations 1, 2, 3, 4/A300 specify VYN1 and VIN2. Sheet A900, Material Schedule Index and Material Schedule only specify VYN2. Please clarify if there is only 1 type of VYN product required. If not, provide specification for VYN1. | See response to Item #25 above. | N/A | |
| 42 | Sheet A510 | 2/A510 indicates a 2”x2”x20 GA metal angle to be installed (fastened) at the interior of the top of the wall. The 2” vertical leg is completely blocked by the top cord of the truss. Should the vertical leg be 6” to allow for fastening to wall? | Replace detail 2/A510 with attachment. | 021802 - A510 | |
| 43 | Sheets S220, S500, & A510 | Sheet S220 1/S220 and S500, 4/S500 show trusses sitting on top of wall framing. Sheet A510, 2/A510 shows truss next to interior of interior face of exterior wall. Please clarify. | Replace detail 2/A510 with attachment. | 021802 - A510 | |
| 44 | Spec. 01 35 26, 3.8.1 | Specification Section 01 35 26, 3.8.1, Utility locations indicates contractor is to provide a third party, independent, private utility locating company… Will the EAFB Utility Shops be providing as-built drawings for the utilities? | After award of the contract, available EAFB asbuilts associated with B1161 will be made available to the contractor upon request, but there will be no guarantee that all desired asbuilts exist. Also, EAFB Utility Shops will assist the contractor with utility locates as needed. | N/A | |
| 45 | Sheet A500 | Please provide the material schedule that corresponds to the Building Envelope? Example, BE-W3, what does the “3” mean? See A500 note 7. | Reference item #10 above. | N/A | |
| 46 | Are there any additional items to submit with the SF1442 and bid bond for the proposal? | Only required documents are the bid bond and SF 1442 however nothing stops you from sending anything you find relevant. | N/A | ||
| 47 | The landings/ramps at entries to the buildings do not include handrails. Please confirm the landings are in compliance with the IBC. | At exterior ramp provide handrails both sides meeting requirements of 2018 IBC 1012.8. At all exterior stairs provide handrails both sides per IBC 1011.11. Facility is able-bodied and is not required to meet ABA accessibility requirements as identified on G100. | N/A | ||
| 48 | Spec. 02 41 00 | In Specification Section 02 41 00, Section 3.1.7 states to preserve metal trusses as whole units and transported to salvage/recycle. Are the existing trusses steel, or wood? At the site visit there was some discussion about contractors receiving existing record drawings. To date, these have not been received. | The existing trusses are wood. Applicable as-builts are attached for reference. | 1951-12-10_Parachute Loft and Shop (as-builts) and 1992-04-15_Parachute Shop Addition (as-builts) | |
| 49 | Spec. 02 41 00 | In Specification Section 02 41 00, Section 3.1.8 states to salvage miscellaneous metals. We understand this to mean metals shall be segregated and taken to recycling, correct? | Correct. | N/A | |
| 50 | Spec. 02 41 00 | In Specification Section 02 41 00, Sections 3.1.9 – 3.1.11 state to salvage wood components, carpet and acoustical ceiling tiles. May these requirements be deleted? | Delete the requirement to recycle / salvage wood components, carpet and acoustical ceiling tiles. | N/A | |
| 51 | a | In Specification Section 02 41 00, Section 3.1.15, the paragraph states “Salvage each item of equipment and fixtures as a whole unit; listed, indexed, tagged and stored . . . Transport salvaged equipment and fixtures, including motors and machines, to a designated on base storage area as directed by the Contracting Officer.” Given the condition/appearance of the assets in the facility at the site visit, are any pieces of equipment or fixtures designated for on-base salvage and storage? If so, which specific items require this and where on base will the items be transported to? | Section 3.1.15 of Spec. 02 41 00 shall be amended to delete all verbiage from "Salvage each item…" to "…and recycle of parts." Only items that are specifically called out in the specifications or drawings to be treated as such will be salvaged by the Government | N/A | |
| 52 | Spec. 02 61 13 | In the Shannon and Wilson attachment of Specification section 02 61 13, the soil bores for the 26.5’ deep bores (AP . . . ) are eligible. These are pages 471 and 472 of 692 in Book 1 of the Specifications. Can legible pages be provided? | Replacement sheets for boring logs 19-03 and 19-04 are attached. | Geotech Report, Log of Boring-figures A-4 and A-5 | |
| 53 | Sheet C-110 | Are stockpile locations depicted on Sheet C-110 to be considered long-term stockpiles IAW the Eielson AFB UFP-QAPPP? Or, is the contractor required to relocate the stockpiled materials to a separate location after laboratory analysis? | These will not be long-term stockpiles. The stockpiles shall be disposed accordingly and expeditiously upon receiving lab results. | N/A | |
| 54 | Spec. 05 12 00 | In Specification Section 05 12 00, Structural Steel, please confirm AISC certification is not required for the fabrication and/or installation/erection of the structural steel. Section 2.1 of the specification references documents alluding to, or requiring, AISC certification requirements. | The project documents do not require AISC Certified steel fabricators nor erectors. Per specification, fabricators & erectors need to maintain a quality control program to meet the requirements of AISC 303 and 360. One way to demonstrate a compliant QC program is to be AISC Certified. That said, AISC Certified fabricators and/or AISC Certified erectors are not required. | N/A | |
| 55 | Spec. 06 10 00 | Specification Section 06 10 00, Section 1.8 addresses Fire-Retardant Treatment of wood. Is the only location requiring this the communications room back-boards? If not, what other components of the structure are required to be fire-treated woods? | Correct. Only the comm. room back-boards. | N/A | |
| 56 | Spec. 07 21 13 and Sheets C-701 & S-100 | The utilidor drawings C-701 and S-100, Det 1, discuss rigid board insulation on the utilidor and refer to the specifications, section 07 21 13, Block and Board Insulation, for the compressive strength requirements of the insulation covering the utilidor lids. Section 2.1 of the specification states Type IX, 25 PSI is the strength requirement of the rigid board insulation. 25 psi is typically for vertical applications, such as on the sidewalls of the utilidor. On top of lids, is 25 psi the correct compressive strength rating? If not, what is the material covering the lids to be rated for? | See specification 33 05 41.00 29 for utilidor insulation requirements, specifically paragraph 2.2.1. Type IV XPS is allowed in all utilidor applications other than in vehicle loading areas in which Type VII (60psi) XPS is required. | N/A | |
| 57 | For Div 09 resilient floors, including Static Control Dissipative Tile and Resilient Flooring, is the Gov’t able to confirm the existing slab moisture content? Conducting slab moisture and alkalinity tests may yield non-compatible results if the original placement did not include a quality vapor barrier under the concrete. Is a moisture mitigation primer required, and if so, what are the specifications? | Provide Moisture mitigation primer at new and existing concrete slabs; Basis of Design: UZIN PE 460 Moisture Vapor Retarder. | N/A | ||
| 58 | Per UFC 3-600-01 Sch10 grooved for 2 ½” and larger main is acceptable – can you confirm this will be acceptable on this project? | EIE 17-Fire Alarm Systems Standards Section 4.1.3 requires black steel Schedule 40 for all piping used on fire suppression system. | N/A | ||
| 59 | Is exposed pipe acceptable in most areas (without drop ceilings) or is it anticipated to run all the pipe in the attic area ? | It is anticipated to run all the pipe in the attic area. | N/A | ||
| 60 | Is there an anticipated pump size for this building ? | See Specification 21 30 00 Section 2.2. 750 GPM @ 75 psi. | N/A | ||
| 61 | FP201 notes the attic as being calced at a .10/1500 sq ft per NFPA 13 – are calcs per NFPA 13 acceptable or must we meet the UFC requirements ? | FP201 notes that the attic must be provided with sprinklers in accordance with NFPA 13, it also notes it must be protected as a light hazard at 0.10/1500 which meets UFC 3-600-01. | N/A | ||
| 62 | FP201 notes the attic as being calced at a .10/1500 sq ft per NFPA 13 – please confirm that we will need to increase this by 30% for the 4.5/12 slope in the attic | IAW UFC 3-600-01 9-7.3.6, increase is required for sloped roof, correct. | N/A | ||
| 63 | It appears that the need for a fire pump is based on the calc in the high drying area. In more recent military jobs we have been allowed to use an entire area calc for areas similar to this on UFC jobs if there is a fire rated wall. Can you verify if we need a full 2500 sq ft remote area for the drying area with the 11.0K heads or if this area can be an entire area calc. with 1 hour rating around it ? | The Drying Tower is currently not 1-hour rated. | N/A |
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