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December 19, 2019
NOTICE TO PROSPECTIVE BIDDERS
ADDENDUM 1
INVITATION TO BID (ITB) No. 200016
FOR
KITCHEN AND SERVERY RENOVATIONS AND RECONFIGURATION AT CORA KELLY
ITB Dated: December 5, 2019
Original Closing Date/Time: January 10, 2020 @ 12:00 p.m. EST Revised Closing Date/Time: Unchanged
A. The referenced ITB is hereby changed as follows:
1. Incorporation of answers to prospective Bidder questions, including supporting photographs, which correspond with their respective questions.
2. Additional clarification in response to the request for photographs illustrating the crawl space.
3. ACPS’ response is as follows:
Access panel is located in janitor closet between boys and girls gang bathrooms. The access
panel is more than 100 feet away from kitchen area, thus does not provide efficient access to the work area. Contractors are advised to consider cutting an access hole through the floor
for the purposes of construction and parching/restoring after construction completion.
*** Except as modified herein, all other Terms and Conditions remain unchanged. With kindness,
David F. Banks David F. Banks
Director of Procurement [email protected] THIS ADDENDUM IS ACKNOWLEDGED AND CONSIDERED A PART OF THE SUBJECT REQUEST FOR QUALIFICATIONS:
___________________________________________ Name of Firm/Contractor ___________________________________________ __________ Signature/Title Date
ITB No. 200016 ‐ Kitchen Renovations and Reconfigurations at Cora Kelly Elementary School
No. Bidder Question ACPS Response
1
some discrepancies between the equipment schedule and the equipment plan
on DWG A1.1. Some of the quantities for the equipment do not match up with
the drawings.
Description In the Schedule In the Plan DWG
K3 : Mobile Work Table 3 2
K9 : End Load Pan Rack 1 3
K15 : Hand Sink 1 3
The quantity indicated on the plan view on
A1.1 is correct. A corrected drawing A1.1 with
revisions to the schedule is included with this
Addendum.
2 Please confirm we are to use the “bid set” drawings and not the “permit set”.The bid set is the basis for the bid. Do not use
the permit set.
3
Note #1 on page M1.1 directs that the GC “verify operation of smoke damper
and replace if required”. We won’t know if the damper works or not nor
what’s involved with replacing until after contract award. Can this be handled
as a project allowance
Assume the damper must be replaced, include
the cost in the bid, and identify the cost for this
as a breakout item in the bid.
4Note #3 on page M1.1 directs that the GC “verify operation of hood controls
and replace if required”. We won’t know if controls work or not until after
contract award. Can this be handled as a project allowance.
Assume the controls will need to be replaced,
include the cost in the bid, and identify the cost
for this as a breakout item in the bid.
5Note #6 on page M1.1 directs that the GC verify operation of “through the wall
exhaust fan” and replace if required”. We won’t know if the fan works or not
until after contract award. Can this be handled as a project allowance.
Assume the wall exhaust fan will need to be
replaced, include the cost in the bid, and
identify this cost as a breakout item in the bid.
6
Please provide construction type of existing roof for roof patching/curb
flashing pricing. Roof and crawlspace access was not allowed during the
walkthrough.
Based on limited information, the roof
construction is steel joists at 48" oc with a 3"
original deck construction. Reroofing has
added 4‐6" of insulation and membrance
roofing. The floor construction is steel joists at
24" oc with a 2 1/2" concrete deck. The roof is
accessible.
7
Is the existing roofing under warranty with a particular roofing contractor? If
so, please provide name.
The roof warranty was issued to Nastos
Construction, Inc. See copy of roofing
submittal, attached. Any roofing contractor
may be used provided they are able to have the
manufacturer re‐certify the system for the
purpose of maintaining the warranty.
8
Page A1.2 Keynote #11(Aluminum Closure Panel) points to a suspended ceiling
(3/A4.0). Please clarify.
The space between the top of the walk‐in
refrigerator and freezer should be closed with a
vertical closure panel. This panel can be
perforated or not perforated. Refer to
Specifications, 11400, K‐18.J.
9Referring sheet A6.1, Spec. F‐3B given size cannot be found on the
manufacturer website. Its available in 18”x18” only. Please advise
The specified LVT flooring should be cut to 4" x
18" where indicated on the drawings.
10
Please clarify working hours during student days. Should noisy work should be
done after hours?
ACPS prefers noisy work to be done before 8:00
AM and after 2:35PM. However, it is not a
requirement. 5 working days are reserved for
5th grade SOL testing. During these 5 days no
noisy work allowed until 3:00PM. These days
are spread through May and early June and will
be shared once available in February.
11
Please confirm staging area & dumpster location. Staging area shall be contained to extent
possible in the work area. If additional staging
area is required ACPS will coordinate with
Recreation Depratment and the School
Administration to provide an area. Any outside
of work zone staging area, for example an area
in the cafeteria, shall be enclosed with secure
barrier.
12 Are temporary toilets required? Yes
13
Please identify installation of owner‐furnished or salvaged/contractor‐installed
items.
All owner‐furnished or salvaged/contractor
installed items are indicated on drawing AD.0
and A1.1.
14
Please explain how to provide identification tags for contractor personnel. The Contractor is responsible for providing
identification to all construction personnel.
Refer to 011000‐5, 1.8.F.
15
Does Alexandria city require any permits? The City of Alexandria requires a building
permit, trade permits and inspections. Refer to
011000‐5, 1.10.A.
16Is Building commissioning or TAB report required by the contractor?
Yes, refer to Mechanical General Notes, 42‐44
on M0.1
17Would you be able to provide what roofer has the warranty on the building? It
was a recent installation.
See response to #7.
18
The P‐1.4 shows the MAU‐1 in a different location than the S1.01, M1.2 and
E1.3. Please confirm which location is correct for the MAU‐1 unit.
The MAU‐1 is located where indicated on M1.2,
S1.01, E1.3, and AD.0. Drawing P1.4 has been
revised and is included with this Addendum.
19 Please provide building fire alarm vendor. Simplex Grinnell (TYCO)
20
Please provide building HVAV Controls vendo
HVAC Controls Vendor: Automated Logic (ALC)
POC: Thomas Jobe
4948 Dominion Blvd
Glen Allen, VA 23060
+1.804.888.8310
21Please confirm if there is a required roofing contractor and, if so, please
provide.
See response to #7.
22
Per the structural drawings, the existing kitchen is built on steel floor joists
spaced at 24” on center with a crawl space located below the existing slab.
Please confirm there is access to this crawl space to complete the plumbing
work.
Crawl space access is available in the kitchen.
However, the opening is small and pipes are in
the way so it provides very limited access.
The contractor may cut the
floor for temporary access to the crawl space
as long as the floor is later restored.
23
Sheet M1.1, note 4 stipulates that the contractor is to maintain the existing
duct for reconnection to new type II hood. Sheet M2.1, note 4 says to provide
new 10x10 stainless steel grease duct at this same location. Please confirm
desired scope with regards to this item
The existing duct from the original Type II
dishwasher hood shall be removed and a new
duct provided from the new dishwasher hood
as well as a new exhaust fan. Drawing M1.1
has been revised and is included with this
Addendum.
24
Sheets M1.1 & M2.1 note 4 both refer to a new type II hood. Per the
equipment schedule and architectural plans, the hood is existing to be
modified. Please confirm there is no new hood needed. If it
is needed, please provide spec.
Refer to response to #23 related to the Type II
dishwasher hood. The existing main
equipment Type I hood is to be retained,
renovated, and put back into operation as
directed on the drawings.
25 Please confirm all pricing should be based on the bid set of drawings dated
10/29/2019 and not the permit set.
See response to #2.
26
Section 013100, Refer to 1.2 A2 and 1.6 A
‐ Please advise if coordination drawings will be required for this project, since
the work is clearly noted in the drawings
If the contractor's shop drawings and
submittals are complete and certified by the
contractor to be coordinated with the existing
conditions and other trades then coordination
drawings can be waived.
27
Section 013100, Refer to 1.2 A2 and 1.6 A
‐ If coordination drawings are to be included, please advise if ductwork,
plumbing and electrical will only be required. No sprinkler(s) were noted on
site.
This area of the building does not have
sprinklers.
28
Section 013100, Refer to 1.7D please confirm (7) working days for RFI
responses.
The Architect will endeavor to respond to RFI's
promply, however some RFI's may require field
visits, review by consulting engineers, or
preparation of construction sketches. RFI's will
be responded to in seven (7) days or less.
29
Section 013300, Refer to 1.3A
‐ Please confirm contractor is to account for a submittal schedule
Confirmed, provide a submittal schedule to be
reviewed and approved as an action submittal.
30
Section 013300, Refer to 1.3A
‐ Please advise whether action submittals will suffice, if not please specify.
Provide submittals as indicated in 013300 ‐
Submittal Procedures, and as identified in the
specifications and on the drawings for the
Architect's review and action.
31
Section 013300, Refer to 1.7A and section 014000 1.1B.
Please advise if third party inspection are to be required (such as visual
inspection of welded and bolted structural connections)
The City of Alexandria did not require Critical
Structures inspections by a third party.
However, ACPS reserves the right to have third
party inspections for any part of the work. If
required by the City or initiated by ACPS, third
party inspections will be provided by ACPS.
32
Section 015000, Refer to 3.5C.
‐ Please advise if contractor is to engage a professional pest control contractor
at the completion of the project. If so, please confirm only the immediate
disturbed area of construction is to be accounted.
Pest control must be provided up to Substantial
completion.
33
Section 017300, Refer to 3.7 “Commissioning Starting and Adjusting”. There is
not mayor equipment other than the units for the new walk‐in cooler (or W.I.
Freezer).
‐ If commissioning will be required for the overall project please advise if the
architect will advise need to be present during those efforts.
Paragraph 3.7 defines the scope of
commissioning which includes, but not be
limited to, all of the kitchen and serving
equipment, HVAC system, hood system, and
other "operating" products such as the
overhead coiling doors and shutters.
34
Section 017300, Refer to 3.7 "Commissioning Starting and Adjusting."
‐ Please advise if architect will provide a list of specified equipment to be
commissioned in coordination with contractor efforts and for bidding
purposes.
See response to #33.
35
Section 017300, Refer to 3.7 “Commissioning Starting and Adjusting”. There is
not mayor equipment other than the units for the new walk‐in cooler (or W.I.
Freezer).
See response to #33.
36
Section 017300, Refer to 3.7 "Commissioning Starting and Adjusting."
‐ Please advise if architect will provide a list of specified equipment to be
commissioned in coordination with contractor efforts and for bidding
purposes.
See response to #33.
37
Section 114000 ‐ Foodservice Equipment ‐ 1.4. Insert new paragraph D. as follows:
"Submit with the Bid Proposal three‐
dimensional drawings (views) of the serving
line equipment."
38
Drawing A1.2, Missing Keynote 14. Keynote 14 should read as follows: Provide
new Type II stainless steel hood and duct to
exhaust fan. See also Mechanical."
MODIFIED FORM
NASTOS CONSTRUCTION INC.1421 Kenilworth Ave. N.E. Washington, D.C. 20019MATERIAL APPROVAL SUBMITTAL REGISTER
FOR: ( Gale Associates, Inc) FROM: (Contractor) DATE
PROJECT NUMBER SUBMITTAL
PROJECT TITLE
TO BE COMPLETED BY CONTRACTOR FOR A/E FIRM USE ONLYITEM SPECIFICATION SECTION/ DESCRIPTION OF MATERIAL AP- DISAP- SEE INITIALNO. PARA NO. /DRAWING NO. (Include Type, Model Number, Catalog Number, Mfg., etc.) PROVED PROVED REVERSE
1
BY COMPLETING THIS FORM, THE UNDERSIGNED CONTRACTOR CERTIFIES THAT THE MATERIAL COMPLIES WITH ALL SPECIFICATIONS OF SUBJECT CONTRACT
DATE TYPE OR PRINT NAME AND TITLE SIGNATURE
TO: ( Gale Associates, Inc)
FOR EVALUATION AND ACTION.
DATE TYPE OR PRINT NAME SIGNATURE
TO: (Project Architect/Engineer Representative/Modernization Construction Supervisor)
RECOMMEND Approval Disapproval as indicated Above and Subject to Any Applicable Comments on the ReverseDATE TYPE OR PRINT NAME SIGNATURE
05-Jul-18 Yuri Vallecanas
Sure-Seal EPDM Membrane by Carlisle
Gale Associates, Inc. - 1122 Kenilworth Dr, Suite 206, Towson, MD 21204
Sherre L. Bartlett
Sherre L. Bartlett
Jul-05, 2018
SUBMISSION NUMBER
1.37 072200.2.3C Sure-Seal EPDM MembraneRA749
Cora Kelly ES Partial Roof Replacement
Yuri VallecanasProject Manager
072200.2.3C
Yuri Vallecanas, PM
NEW RESUBMITTAL
Overview
Carlisle’s Sure-Seal Kleen Non-Reinforced roofi ng membranes are available in thicknesses of 45-mil (1.14 mm), 60-mil (1.52 mm), and 90-mil (2.29 mm). Ideal for new single-ply roof construction and re-roofi ng applications, Sure-Seal EPDM Kleen Non-Reinforced membranes are available in widths of up to 10' (3 m) and lengths of up to 100' (30 m). These membranes are Fire Retardant (FR), which means they are specially formulated to inhibit the spread of fl ame and meet or exceed code body testing criteria for fi re-retardant roofi ng membranes.
Features and Benefi ts
» Carlisle EPDM has 50 years of proven performance and industry-leading weathering resistance (41,580 kJ/m² total radiant exposure without cracking or crazing)
» Factory-Applied Tape™ seam technology and a full line of Pressure-Sensitive fl ashing accessories enhance workmanship quality
» Dark-colored EPDM is the smart choice in colder climates:
- Reduces heating costs, which are generally 3 – 5 times greater than air conditioning costs
- Reduces carbon footprint by lowering heating costs
- Reduces safety hazards caused by snow and ice accumulation
- Reduces hazardous conditions caused by frost, dew, and ice
- Reduces the potential for condensation problems
» Life Cycle Assessment using EPA’s TRACI model analyzed EPDM, TPO, PVC and Modifi ed Bitumen:
- EPDM had the lowest global warming potential
- EPDM had the lowest acid rain impact
- EPDM had the lowest contribution to smog
» Numerous studies and real-world experience confi rm that Sure-Seal EPDM’s 465% elongation and weathering resistance result in superior hail damage resistance (UL 2218 Class 4 rating)
» EPDM is the most dimensionally stable heat resistant membrane and stays fl exible even in extremely cold conditions, down to -40°F (-40°C): see fl exibility/torsion DMA data
» Extruded manufacturing technology results in seamless sheets that are UL Classifi ed and FM Approved
» Industry-leading 15-, 20-, 25-, and 30-year warranties are available
» Carlisle manufactures all the major components of a typical roofi ng system, including membrane, fl ashings, tapes, adhesives, sealants, insulations, and insulating cover boards
Carlisle’s Factory-Applied Tape Seam Technology
The Factory-Applied Tape process results in a reliable seam with greater peel and shear strengths and no entrapped air bubbles. Consistent placement of the Factory-Applied Tape maximizes the splice area and results in a high-quality seam. Factory-Applied Tape has a shelf life of one year.
30-Year Warranty
Carlisle’s 30-year Sure-Seal EPDM roof system features a thicker, more durable membrane complemented by enhanced details and accessories. Carlisle’s 90-mil EPDM is used for 30-year warranty installations to provide long-term value and performance. In addition to 30 years of guaranteed protection, this system is available with warranties to cover hail, accidental punctures, and wind speeds up to 120 mph.
800-479-6832 | P.O. Box 7000 | Carlisle, PA 17013 | Fax: 717-245-7053 | www.carlislesyntec.com
E X P E R I E N C E T H E C A R L I S L E D I F F E R E N C E
Kleen Non-Reinforced Membranes
Productivity Boosting Features and Benefi ts:
» Pre-cleaned EPDM allows primer to be roller applied
» With Carlisle’s Factory-Applied Tape, most of the labor to create seams between membrane panels is completed in a quality-controlled, state-of-the-art environment
» Factory-Applied Tape is available on all Sure-Seal Kleen membranes up to 10' (3 m) in width, providing the fastest way to complete a seam in today’s roofi ng market
Typical Properties and Characteristics
Physical Property Test MethodSPEC.
(PASS)Typical
Tolerance on Nominal Thickness, % ASTM D412 ±10 ±10
Weight, lbs/ft² (kg/m²) 45-mil60-mil90-mil
0.29 (1.43)0.39 (1.91)0.59 (2.86)
Tensile Strength, min, psi (MPa) ASTM D412 1305 (9) 1600 (11.0)
Elongation, Ultimate, min, % ASTM D412 300 465
Tear Strength, min, lbf/in (kN/m) ASTM D624(Die C)
150 (26.3) 200 (35.0)
Factory Seam Strength, min ModifiedASTM D816
MembraneRupture
MembraneRupture
Resistance to Heat Aging*
Properties after 28 days@ 240°F (116°C)Tensile Strength, min, psi (MPa)Elongation, Ultimate, min, %Tear Strength, min, lbf/in (kN/m)Linear Dimensional Change, max, %
ASTM D573
ASTM D412ASTM D412ASTM D624ASTM D1204
1205 (8.3)200125 (21.9)±1.0
1450 (10.0)280215 (37.6)
-0.5
Ozone Resistance*
Condition after exposure to 100 pphmOzone in air for 168 hours @ 104°F (40°C) Specimen is at 50% strain
ASTM D1149 No Cracks No Cracks
Brittleness Temp., max, °F (°C)* ASTM D746 -49 (-45) -49 (-45)
Resistance to Water Absorption*
After 7 days immersion @ 158°F (70°C) Change in mass, max, %
ASTM D471 +8, -2 +2.0
Water Vapor Permeance*
Max, permsASTM E 96(Proc. B or BW)
0.10 0.03
Flexibility/Torsion DMA ASTM D5279-08 N/A 225 MPa@ -40°F
Fungi Resistance ASTM G21 N/A 0(No Growth)
Resistance to Outdoor (Ultraviolet)
Weathering* Xenon-Arc, total radiant exposure at 0.70 W/m² irradiance,80°C black panel temperature
ASTM G155 No CracksNo Crazing7,560 kJ/m²3,000 hrs
No CracksNo Crazing41,480 kJ/m²16,500 hrs
At 0.35 W/m² irradiance, 80°C black panel temperature
6,000 hrs 33,000 hrs
*Not a quality control test due to the time required for the test or the complexity ofthe test. However, all tests are run on a statistical basis to ensure overall long-termperformance of the sheeting.
Typical properties and characteristics are based on samples tested and are not guaranteed for all samples of this product. This data and information is intended as a guide and does not refl ect the specifi cation range for any particular property of this product.
Note: Sure-Seal Kleen Non-Reinforced EPDM Membrane meets or exceeds theminimum requirements set forth by ASTM D4637 for Type I non-reinforced EPDMsingle-ply roofi ng membranes.
E X P E R I E N C E T H E C A R L I S L E D I F F E R E N C E
800-479-6832 | P.O. Box 7000 | Carlisle, PA 17013 | Fax: 717-245-7053 | www.carlislesyntec.com
06.02.17 © 2017 Carlisle.REPRINT CODE: 605436 - “Sure-Seal EPDM Kleen Non-Reinforced Product Data Sheet”
Carlisle, Sure-Seal, Factory-Applied Tape, and SecurTAPE are trademarks of Carlisle.LEED is a registered trademark of the U.S. Green Building Council.
Installation
Sure-Seal Kleen 45-mil (1.14 mm), 60-mil (1.52 mm), and 90-mil (2.29 mm) membranes are utilized primarily in Design A (Fully Adhered roofi ng systems).
Design A (Fully Adhered Roofi ng System): insulation is mechanically fastened or adhered to the roof deck. The substrate and membrane are coated with the appropriate Carlisle bonding adhesive. The membrane is then rolled into place and broomed down. To complete seams between two adjoining membrane panels, apply primer to the splice area in conjunction with Carlisle’s Factory-Applied Tape. As an alternative, Carlisle’s hand-applied SecurTAPE™ may be used.
Follow these steps for splicing in temperatures below 40°F (5°C):
1. Heat the primed area of the bottom membrane with a hot-air gun asthe top sheet with Factory-Applied Tape is applied and pressed intoplace.
2. Prior to rolling the splice area with a 2"-wide steel hand roller, applyheat to the top side of the membrane with a hot-air gun. The heatedsurface should be hot to the touch. Be careful not to burn or blisterthe membrane.
Consult Carlisle specifi cations for complete installation information.
Precautions
» Use proper stacking procedures to ensure suffi cient stability of the materials.
» Exercise caution when walking on wet membrane. Membranes are slippery when wet.
» Membranes with Factory-Applied Tape should not be exposed to prolonged jobsite storage temperatures in excess of 90°F (32°C), otherwise the shelf life of the tape may be affected.
» When membranes with Factory-Applied Tape are used in warm, sunny weather, shade the tape end of the rolls until ready to use.
» Factory-Applied Tape has a shelf life of one year.
LEED® Information
Pre-consumer Recycled Content 5%
Post-consumer Recycled Content 0%
Manufacturing Location Carlisle, PA
Solar Refl ectance Index 9
Kleen Non-Reinforced Membranes
