531-14-110: Exterior Repairs 27, 29, 88, 110
Pre-Bid Q&A
1. Reference; Drawing No. A1.1, Keyed Sheet Note 8, “Remove entire built-up roofing system…”, Bid
Option #2, Bid Option #3. Is this a complete removal and replacement or a recover over the existing
roofing system?
a. The intent of the built-up roof removal as stated in this sheet note is to remove all
aggregate, tar compound, and cover board and to expose and retain as much rigid
insulation and possible. New insulation, cover board, and TPO system shall be installed
on top of existing rigid insulation as shown on A5.1.
2. Reference; Drawing No. A3.1, Keyed Sheet Note 5, “Remove entire built-up roofing system…”. Is this
a complete removal and replacement or a recover over the existing roofing system? Reference
Drawing No. A3.1, S.O.W.F. “Contractor shall replace any and all damaged or saturated existing rigid
insulation. For bidding purposes anticipate approximately 1,500 S.F. at 6” insulation depth of rigid
insulation replacement.” If this is a recover of the existing system we will be unable to determine if
there is any damaged or saturated insulation. Please clarify.
a. The intent of the built-up roof removal as stated in this sheet note is to remove all
aggregate, tar compound, and cover board and to expose and retain as much rigid
insulation and possible. New insulation, cover board, and TPO system shall be installed
on top of existing rigid insulation as shown on A5.1. It is assumed that a large portion of
the rigid insulation below existing cover board is damaged and will need to be replaced
prior to installation of new materials. Refer to the included drawing “531-044_88-7.pdf”
for information on the original construction of the built-up roof at B.88.
3. Reference; Drawing No. A4.1, Keyed Sheet Note 3, “Remove entire built-up roofing system…”. Is this
a complete removal and replacement or a recover over the existing roofing system?
a. The intent of the built-up roof removal as stated in this sheet note is to remove all
aggregate, tar compound, and cover board and to expose and retain as much rigid
insulation and possible. New insulation, cover board, and TPO system shall be installed
on top of existing rigid insulation as shown on A5.1. Refer to the included drawing “531047_A7.pdf” for information on the original construction of the built-up roof at B.110.
4. Reference; Drawing No. A4.1, Keyed Sheet Note 10. Please provide the manufacturer and
specifications for the existing TPO roofing system to be welded to.
a. The existing TPO roofing system on B.110 is a Firestone 80mil TPO. The system was
installed as per manufacturer’s recommendations and is fully adhered.
5. Reference; Drawings No. TS-4.3 & TS-4.4, Sec 04904, Stone Restoration and Cleaning. All of these
buildings are brick/masonry. We cannot find any stonework or Keyed Note references to stone. Are
we missing something?
a. The windows at Building 29 contain bottom sills of stone and two (2) horizontal courses
of stone at the ground level and first floor level that shall be cleaned per spec.
Additionally, the connecting corridor annex between buildings 27, 67, and 85 as stone
window surrounds that can be seen on sheet A1.1, photos 27-2C, 3C, and 4C that shall
be cleaned per spec.
6. Please clarify that the revised Bid Schedule in Amendment 2 is correct.
a. The Bid Schedule in Amendment A00002 is incorrect. Please use the included, revised
Bid Schedule within this amendment.
7. Please confirm the project solicitation number, as the original solicitation number is VA260-15-Q0434 and amendment #2 price/cost schedule is VA260-15-Q-0343.
a. The solicitation number is VA260-15-Q-0434.
8. Please clarify the CLIN’s and each associated scope of work.
a. The Contracting Line Item Numbers (CLIN’s), or Bid Options, are correctly referenced on
the drawing cover sheet G1.0. Each drawing sheet contains the general scope of work
for each building, each Bid Option, and individual sheet notes for more detailed
direction.
9. Which CLIN does the painting of HVAC hoods and vent piping fall within?
a. The painting of HVAC hoods and vent piping falls within each Bid Option, directly
depending on which roofing surface is being renovated/replaced. Contractor shall refer
to each building-specific, Bid Option scope of work shown on each drawing sheet for
further clarification.
10. Please provide a basis of design quantity of brick repair and mortar joint repair for each building
requiring that scope of work.
a. Building 29 is the only building within the project that will require brick repair per sheet
note 11 on drawing sheet A2.1. All areas of required repair are shown on the drawing
sheet A2.1, but there are numerous other areas of need that are not directly called out.
Contractor shall anticipate 250 S.F. of brick replacement and 1,500 S.F. of brick/mortar
repointing at B.29 for bid purposes.
11. It was mentioned during the pre-bid walk that the drawing set contained incorrect references to the
project’s base bid and bid options. Please provide the correct set of drawings and specifications.
a. Both the original drawing set and the Bid Schedule from Amendment A00002 are
incorrect. Please use the included, revised drawing set and Bid Schedule. The only
difference between original and revised drawing sets is that the Base Bid and Bid Option
#4 were interchanged. The Base Bid is B.88 and Bid Option #4 is B.29, and all references
within the drawing set have been updated to reflect this.
12. Please provide a copy of the pre-bid roster.
a. Please find the included pre-bid roster from 04/16/2015.