ADDENDUM # 02

Date: February 9, 2022

Reference: Roofing Services at Thunderbolt Career & Technology Center  

IFB Number: BG-RoofingTCTC

Effective this date, this addendum forms part of the contract documents and modifies the original IFB. This Addendum shall be attached to and form a part of the plans and specifications. All bidders must acknowledge receipt of this addendum on the Bid Form.

Addendum #2 - Response to questions received from bidders as follows: 

1.	Moisture Survey: This needs to be performed by an independent third-party engineering firm (not the roofing contractor) to protect Colleton County?
Response:
A copy of the third-party moisture survey is attached to this addendum.

2.	Warranty: A two-year contractor labor warranty understood?
Response:
Yes. A two-year contractor labor warranty is required.

3.	Ten-year Materials Warranty: Is this work to have a ten-year BASF Standard Product Warranty, with a third-party inspection per BASF requirements?
Response:
Yes. At the end, the work the contractor is to provide Colleton County School District with a ten-year manufacturer’s warranty from BASF with a third-party inspection to meet all requirements to provide the warranty from BASF.

4.	Granules: The Scope of Work does not mention the use of granules? Is this your intention NO GRANULES?
Response:
Granules are to be provided. Refer to Specification Section “07 5713 – Seamless Silicone/Polyurethane Insulated Roof System for Retrofit Applications” page 07 5713 – 6. Granules are to be provided per “3.05 Granules/Aggregate Application” to meet the minimum application requirements for contractor to provide the Colleton County School District with a ten-year system warranty. 

5.	Bid Bonds, Permits, & Inspection required: Page 15 Scope of Work states they are not included, other areas state they are required.
Response:
A Bid Bond (or certified check made out to “Colleton County School District”) for 5 percent of the bidder’s proposed bid amount shall be provided with the Bid Form as required by “AIA Document A701-1997 – Instructions to Bidders”. A certified and current copy of the power of attorney shall be attached to the Bid Bond (or certified check).

Any permits for the work are provided by the Office of School Facilities (OSF).

Installation inspections for the work will be provided by BASF through their third-party inspection program as required to meet their warranty obligations for the work. The Colleton County School District may also hire an independent third-party inspector.

6.	Will you be sending a copy of the infrared report with wet footages for replacement? This is needed for bidding purposes.
Response:
Per the response to Question #1 - A copy of the third-party moisture survey is attached.

7.	The IFB on page 14 under scope of work. It does not mention granules. Currently the roof has granules. Are we to put granules? If so the specified 15 mills are not enough coating to receive a ten-year warranty. We will need 20 mills if granules are required.
Response:
Per the response to Question #4 - Granules are required. Granules are to be provided in the minimum mil amounts as required by BASF so that a ten-year warranty can be provided at the end of the work to the Colleton County School District.

8.	The 44 drains were discussed being replaced at approximately $2500 each. This will cost $110k but after looking at the drains we feel the foam can be trimmed, the metal drain can be grinded, primed and embed fabric 3’ into the drain and 12’ onto the existing trimmed foam prior to installing the final coating. This would follow the perimeter edge detail. Will this be acceptable?
Response:
The intent is to replace all existing roof drains to ensure there will be no ponding areas on the roof or opportunities for water infiltration around existing roof drains when the work is complete.

9.	The existing roof system is a liquid foam with low solid coating sprayed over a gravel BUR (4 ply Hot Asphalt with gravel surface) over a tapered insulation. So, when we are removing the wet areas that show up on the moisture scan, we will have to remove approx. 10 to 16 inches of existing roof materials to reach to Tectum roof deck depending on where we are at on the roof when cutting out and removing the existing wet roof areas.
Our question is, are we to submit a per S.F. unit price on our letterhead with our bid for the addition wet insulation removal and new insulation fill?
Response:
Yes, the School District will accept the listing of proposed unit pricing for the removal of existing wet insulation based on the actual square footage of areas required to be removed and the installation of new insulation per square foot provided the unit pricing is so listed on the proposing contractor’s company letterhead and included with the Bid Form. This unit pricing will be used to determine if any additional cost or deductions are warranted based on the extent of the areas noted on the third-party moisture survey provided by the Colleton County School District as the selected contractor performs the work of the project.

10.	There was a Mandatory Site Visit held on 1/25/22 at 11:00 am, Are the only contractors allowed to bid this project are the contractors that attended and signed the sign in sheet at that meeting?
Response:
Correct. The Pre-Bid Site Meeting was mandatory. Only bids submitted by those that attended and signed the sign-in sheet will be accepted.

11.	Will you be sending out the mandatory sign in sheet from the 1/25/22 pre-bid with your addendum 1?
Response:
A copy of the sign-in sheet from the mandatory Pre-Bid Meeting is attached to this addendum.

12.	Are all roof drains on the entire roof to be replaced?
Response:
Per the response to Question #8 - All roof drains are to be replaced.

13.	Since this project is going to be a sizable bid/dollar amount, is the school district going to require a bid bond with all bids, performance bond and a payment bond to the owner if awarded the contract? (We recommend the district does require these construction bonds to protect the district and the project.)
Response:
Per the response to Question #5-– A bid bond is required for this work. 
Also, the selected contractor shall provide performance and payment bonds and minimum limits of insurance coverage throughout the duration of the project as required by Article 11 of the “AIA Document A201-2017 – General Conditions of the Contract for Construction” and as modified per “Section 00 5302 – Supplement Conditions to the General Conditions to AIA A201-2017”.

14.	Will aluminum insert drains installed per manufacturers specifications be acceptable substitution to total removal and replacement of the cast iron roof drains, these aluminums insert drains will be a third of the cost of replacing the cast iron drains and are covered under our coating manufacturers 15-year warranty?
Response:
Bidders are to include the replacement of all existing roof drains in their bids. Once a contractor is accepted the Colleton County School District may consider a deductive change order for alternate roof drain options that can achieve the required ten-year system warranty. 

15.	In the specification’s manual, there are two lump sum price lines, page 12 and page 15? Which of these are we to fill in our lump sum price to submit as our bid?
Response:
Neither of the lump sum price lines on page 12 or page 15 are to be filled out and submitted. The correct form to be submitted for this work is “Section 00 4100 – Bid Form”.

16.	Are we to include removal of any abandoned equipment or penetrations in our lump sum bid?
Response:
No. If any abandoned equipment needs to be removed the Colleton County School District will remove the equipment prior to the beginning of this work.

17.	Are we to include drain replacement in our lump sum bid or separate as a unit price per drain on our letterhead?
Response:
Per the response to Question #8 - All roof drains are to be replaced. The cost to replace all roof drains is to be included in the base bid.

18.	We are requesting to use the attached Johns Manville Hercules Roof Insert Drains in lieu of removal and replacement of the existing cast iron roof drains, these drains are designed to insert directly into the existing drain and then be flashed using whatever roof membrane that is being installed. This will save the school district a lot of money on this scope of the work. See attached submittal.
Response:
Per the response to Question #14 - All roof drains are to be replaced.

19.	There are three different bid forms, which one should be submitted? a. One on page 12 of the above-mentioned solicitation. b. One on page 15 of the above-mentioned solicitation. c. One in Specification Section 00 4100 handed out at the pre-bid meeting.
Response:
Per the response to Question #15 - The correct form to be submitted for this work is 
“Section 00 4100 – Bid Form”.

20.	The Scope of Work listed on page 14 of the above-mentioned solicitation, item 2 indicates a moisture scan will be performed. At the pre-bid meeting, many locations were observed marked with blue spray paint. a. Has a moisture scan already been performed? b. When? c. Is correcting the marked areas to be included in the bid price? d. Does the CCSD want a unit price for any additional wet found during roofing work?
Response:
Per the response to Question #1 - A copy of the third-party moisture survey is attached. Correcting the marked area is to be included in the bid amount.
Per the response to Question #9 - Yes. The Owner does want a unit price for any additional wet areas discovered during the roofing work.

21.	The Scope of Work listed on page 14 of the above-mentioned solicitation, item 5 requires all perimeter edges to be V-grooved with construction-grade silicone sealant. Item 6 requires 6- inch fabric embedded in silicone coating at all perimeter edges. Please clarify which perimeter condition is required.
Response:
The perimeter edge requirements per Item 6 with 6- inch fabric embedded in silicone coating is required.

22.	The Scope of Work listed on page 14 of the above-mentioned solicitation, item 9 indicates warranty requirements. Specification Section 07 5713-3 Paragraph 1.10A indicates different warranty requirements. Please clarify.
Response:
Per the response to Question #3 - At the end, the work the contractor is to provide Colleton County School District with a ten-year manufacturer’s warranty from BASF.

23.	The Scope of Work listed on page 14 of the above-mentioned solicitation, item 7 indicates mil thickness requirements. Specification Section 07 5713-3 Paragraph 2.03A indicates different requirements. Please clarify.
Response:
The contractor is to provide the minimum mil thickness requirements per BASF to provide the Colleton County School District with a ten-year warranty.

24.	At the pre-bid meeting owner’s representative indicated that bid and performance bonds are required for this project. There is no mention of these requirements in the project documents. Please clarify.
Response:
Per the response to Question #13 – The contractor is to provide a Bid Bond and, if selected, Performance and Payment Bonds and insurance as noted.

25.	At pre-bid meeting owner’s representative indicated all roof-drains to be torn-out and replaced? No mention in scope or specification. Please clarify.
Response:
Per the response to Question #8 - All roof drains are to be replaced.

26.	At pre-bid meeting noted abandoned HVAC unit loose and on its side on the roof. Please indicate owner’s desired action.
Response:
Per the response to Question #16 – Owner will remove abandoned roof equipment.

27.	Spec Sec 01 5000 Temporary Facilities and Controls. Please define intent of 1.06B Provide 6’ high fence around construction site with lockable vehicular and pedestrian gates.
Response:
The contractor is responsible for securing the work area, their materials and equipment. The installation of a temporary fence to aid in securing the area is at the contractor’s option and not required. The Owner will collaborate with the contractor to provide for a designated area if the contractor intends to provide a fenced space for that purpose.

28.	Spec Sec 01 3553 Security Procedures. Will CCSD be issuing photo identification badges for all workers per paragraph 1.04?
Response:
No. The contractor is responsible for the individuals employed for the work of this project. The Owner requires that all such individuals be easily identifiable. Prior to the selected contractor beginning any work the Owner will review with the contractor the best options to ensure site security.

29.	Spec Sec 01 3000-3 daily construction reports. Please clarify: a. Extent and format b. If photos are required c. Recipient d. Location e. Time due
Response:
For the Daily Construction Report the Owner simply requires the items as listed under “3.05.B” be recorded and only the items that occur each day. The extent beyond a basic logging of the information can be discussed with the selected contractor during the pre-construction meeting.

End of Addendum #2 Questions