08 23 2010 - Vandenberg Hall CS 5 - CS 6 - Bid Questions and Answers 30 -60.docx
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- Renovate Vandenberg Hall Phase 5 & Phase 6
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- FA7000-10-R-0036
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Response to questions 30 - 60
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30. Q No specification was provided for painting the exterior concrete Ceilings. Please advise
A Provide MPI Exterior Paint – Coating Systems EXT 3.2, with Institutional Low-Odor/VOCs Latex, color PPG #2541, “Abbey” eggshell finish.
31. DELETED
32. Q Key note 19 on A1 series drawings states that contractor shall provide new Fritz floor tile in areas where missing or damaged. No quantification of missing or damaged Fritz tile was given. How should we propose on this?
A For bidding purposes, please consider the labor associated with the installation of 1,000 square feet, owner provided Fritz tile.
| 33. Q | Sheet A3.X.00 – Demolition Note refers to Deduct Alternate CS5-2. There is no CS5-2 in the Alternate Section 12300. |
| A | Disregard this note. There is No Deduct Alternate CS5 -2. |
| 34. Q | Sheet A3.X.00- Roof Plan Key Note 7 – Notes PMMA system over existing roof. Alternate Section 12300 Alt CS5-1 notes this work is to be an Add Alternate. 1442 – Price item 3 says to replace existing roof with a PMMA. Please clarify what is required in the base bid and in the alternate. |
| A | Existing Roof System shall be covered with 1 layer of Roxul and PMMA per Specification Section 071416 – Cold Fluid Applied Waterproofing. |
| 35. Q | Sheet A1.4.02 – Note “Reinstall existing pavers and cover board over new PMMA waterproofing system” Is this a correct statement or should the cover board be new? |
| A | For bidding purposes, the cover board shall be reused. |
| 36. Q | Sheet A5.X.00 detail 3&4 – notes new modified bitumen roof. There is no roof specification. Please clarify. |
| A | Existing roof to remain. Per Add Alternate No. CS5-1, provide new PMMA waterproofing. |
| 37. Q | Is there a specification for the one hour spray fireproofing noted in detail 2/A6.X.00? I do not recall this on previous job. |
| A | Provide a concealed cementitious SFRM: Factory-mixed, dry formulation of gypsum or portland cement binders, additives, and lightweight mineral or synthetic aggregates mixed with water at Project site to form a slurry or mortar for conveyance and application. |
| Apply concealed SFRM in thicknesses and densities not less than those required to achieve fire-resistance ratings to acquire a 1 hour fire resistance rating. | |
| 38. Q | Please provide a specification for overhead door at trash compaction room. |
| A | At this time and for bidding purposes, all overhead doors at trash compaction rooms shall be “Existing to Remain”. |
| 39. Q | Sheet A6.1.00- The Restroom Accessories legend lists the quantities of Toilet Partition at 2 but the floor plan shows 4. |
| A | For Restroom 1-6, please provide (4) four ceiling hung toilet partitions as described in the drawings. |
| 40. Q | Sheet A6.1.00- The Floor plan shows 4 “G” Recessed Sanitary Napkin Disposal and Toilet Paper Dispensers but the Restroom Accessories legend lists the quantity of none. Should this be noted “F” instead of “G”? |
| A | For Restroom 1-6, please provide (2) two partitions mounted toilet tissue dispensers, item “F”, as noted on the Schedule. |
| 41. Q | Sheet A0.1.00 – Note 10 notes to provide weather protection. During the site walk it did not appear phase 3 & 4 had any weather protection once the curtain wall was removed. The room side of hallways appeared to be exposed to the elements. Is this acceptable? |
| A | During the site visits of August 4 and August 11 of 2010, the entire perimeter of CS 3 had already been completely encapsulated with the new curtain wall system. The only areas under construction were those within CS 4. Due to the high winds and unpredictable weather patterns of the Cadet Area, OSB temporary partitions where in place at the perimeter. This has been the weather protection that has proven most successful during the previous construction sequences. Any and all weather damage caused to the building during construction activities shall be remediated at the General Contractor’s cost. The extent of existing protection is a calculated risk the previous GCs have taken. |
| 42. Q | CS6 - Sheet A5.X.00 – detail 3 notes a new modified bitumen roof by others. Alternate CS6-1 notes existing roof to get PMMA and solar array. Please clarify. |
| A | Existing roof to remain. Per Add Alternate No. CS5-1, provide new PMMA waterproofing. |
| 43. Q | The following pertain to Sequence 6. Please locate Unit Substations 1, 2, & 3. Who is manufacturer of existing substation #1? |
| A | Please refer to Sheet G0.002, Note 3, Sheet G3.0.00. |
Substation No. 3 is South of Stair Tower No. 4.
Substation No. 2 is South of Stair Tower No. 6.
Substation No. 1 is South of Stair Tower No. 12.
Please refer to Sheet E6.X.01 for Substation No. 2 in CS No. 5.
The Electrical Substations are General Electric.
| 44. Q | Do you have a detailed scope of work established for the asbestos abatement? We don’t want to assume that all the pipe is ACM. And, I noticed that some pipes were labeled “asbestos free”. Could you clarify the extent of pipe abatement? | |
| A | Please refer to Specification Section 013500 – Overarching Environmental Specifications, Appendix ‘A’ CS2, and Appendix ‘B’ CS5 & CS 6. For bidding purposes, assume that what was found in CS 2 (Appendix ‘A’) will be found in CS 5 and CS 6. | |
| Please refer to Sheet G1.0.02, Hazardous Materials Notes. | ||
| 45. Q | Detail 17/A5.X.10 is missing that is referenced in detail 16/A5.X.10, will this be added for bid purposes. | |
| A | Detail 17 will not be added, for bidding purposes use Detail 11/A5.X.10 Similar. | |
| 46. Q | Specification section 92216.2.1 A 2, G40 Hot-dip Galvanized is noted, G60 is the industry standard, will G 60 be acceptable? | |
| A | Please bid per Construction Documents, utilize G40. | |
| 47. Q | Specification section 92216.2.3.A.1 calls out 0.0312 thickness for all framing, which is 20GA studs. The plans reference "25 MSG" on the wall types, which is correct? | |
| A | Plans provide specific information per wall type, per UL Design Number, which call out 25 MSG as a minimum. 25 MSG is an acceptable gauge. | |
| 48. Q | A6.X.00 W1a wall types call for 24" stud spacing "with bracing between, what is the bracing? | |
| A | The bidder and GC is responsible for meeting the requirements of ANSI/UL 263 Fire Resistance Ratings, for Wall Type W1a, UL Design No. U420, as well as all the other UL Design Assemblies in this drawing sheet. | |
| Access to the latest UL Assemblies can be found in the following link: |
http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/bxuv_search.html Per ANSI/UL 263, UL Design No. U420, bracing shall be as follows:
“Bracing — Cut from the steel runners, min. 4-1/4 in. long, fastened to the studs with two No. 8 by 1/2 in. long self-drilling, self-tapping steel screws in each stud. As an alternate, but limits the stud cavity depth to maximum 9-1/2 in., cut from the gypsum wallboard, 9-1/2 in. long and 12 in. wide, fastened to the studs with three Type S wallboard screws in each stud. Vertical spacing of bracing not to exceed 48 in. OC.”
| 49. Q | A6.X.00 W1 & W1a wall types show backer board for tile with waterproof membrane, what is the specification for the membrane? |
| A | Please provide Schluter – KERDI waterproofing membrane or approved equivalent. |
| 50. Q | Specification section 92900, 2.4.C calls for the final coat over drying-type compound. This will create a surface that is more difficult to sand than if the system was reversed and may cause aeration in the texture application. Is it possible to use the drying-type compound for all coats? |
| A | Please bid per Construction Documents and Specification Section 92900. |
| 51. Q | A1.3.01 notes 19 & 24 are to replace damaged Fritz flooring, will we use owner stock for this replacement? |
| A | For Bidding purposes, all Fritz tile flooring shall be provided by the USAFA. |
| 52. Q | Please provide a specification of VCT, per note 38 on A1.1.01 and Fritz if we need to supply the Fritz flooring? |
| A | For Fritz Tile, please refer to Question No. 52. |
| For VCT, please refer to Attached Specification Section 096519 – Resilient Tile Flooring – Revision 2, dated 08.23.2010. | |
| 53. Q | As a clarification to question #16 of the RFI response, does the 259 day period of performance apply to CS-5 only or to the combined total for CS-5 & 6? It was stated at the site visit on August 4th that the anticipated start date for CS-5 was early January 2011 and the start date for CS-6 would be early July 2011. If the 259 day overall period of performance is 259 days, that only leaves a maximum of 77 days to complete CS-6, assuming CS-6 starts July 1st. Is this correct? |
| A | By USAFA LGC. |
| 54. Q | What is the wall base material in the Cadet Rooms on the closets and fixed corridor panel (B1 & B2 on elevation 9/A.X.701)? |
| A | Please provide 4” Rubber Base, Steel Blue – 177, per Specification Section 096513 – Resilient Base and Accessories. |
| 55. Q | No specification is provided for hollow metal doors and frames or wood doors. Please advice? |
| A | For Hollow Metal Doors and Frames, please refer to Attached Specification Section 081113 – Hollow Metal Doors and Frames – Revision 2, dated 08.23.2010. |
| For Wood Doors, please refer to Attached Specification Section 081416 – Flush Wood Doors – Revision 2, dated 08.23.2010. | |
| 56. Q | The door schedules do not indicate whether the doors are new or existing (re-used). The Key notes indicate some new doors (note 28). Can we assume that the existing doors to remain, meet all the ratings, and can be re-used, for example the stair doors? Would all other doors be new? |
| A | For Bidding purposes, please assume all doors are existing to remain. Refer to Specification Sections provided in Question 56, 081113 – Hollow Metal Doors and Frames, Section 4, for a schedule of new hollow metal doors. Refer to Specification Section 081416 – Flush Wood Doors, Section 4 for a schedule of new flush wood doors. |
| 57. Q | There is no hardware group for the Toilet room entry doors (specification section 087110). Please advice? |
| A | For bidding purposes, existing doors are to remain, existing hardware shall be re-used. |
| 58. Q | The Note at the bottom of Hardware Set #CR in section 087110 indicates to replace the locks. Does this refer to the deadbolts or the locksets or both? |
| A | Please refer to itemized list above this note to identify a part number for the deadlock and another for the lockset. Therefore both get replaced. |
| 59. Q | What is the profile and material of the new wood door frames? |
| A | Please refer to Specification Sections provided in Question 56, 081113 – Hollow Metal Doors and Frames, Revision 2, dated 08.23.2010. |
| 60. Q | On sheet A0.4.00 between gridlines B & C and 18 & 19 there is note referencing the removal of “poured in place concrete (terrazzo)”. However, note 26 and section 3/ A0.X.00 found in the same area reference the removal of terrazzo and marble pavers at this area. Is the terrazzo to be removed at the specified location poured-in-place or pavers? |
| A | For extent of different terrazzo systems, please refer drawing Sheets |
A1.4.02 – Fourth Floor Terrazzo Plan – AA A1.4.03 – Fourth Floor Terrazzo Plan – BB A1.4.05 – PMMA Terrazzo Details Renovate Vandenberg Hall – MEP Upgrades CS 5 & CS 6 Page 2 of 6
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