Northeast_HS_Building_3_6_19_&_28_Roof_Question_Reponse_06.05.25.pdf

2605 Enterprise Road East, Suite 200, Clearwater, FL 33759 727.725.0951 | wdastudio.com

Architecture # AR96285 | Engineering # CA6884

Northeast HS Roof Replacement – Buildings 3, 6, 19, & 28

Bid Question Received June 4, 2025 Responses:

Question 1: Can you please advise where the contractor staging area at each building will be provided for this project?

Response: Staging area will be determined once bid is award

Question 2: Due to the discussions of tariffs with the current administration, can you please advise how any unforeseen material price increases will be handled?

Response: Material prices received in the bids are what is expected to be followed for the project.

Contingency amount is to be included in the bids for any unforeseen conditions, which will be reviewed on a case by case basis during construction for the awarded contractor.

Question 3: Will the crew be allowed to work on Fridays during the summer months?

Response: Construction is anticipated to begin after summer during the school year. No work is to be done during the school day and after hours work will be required, including on Fridays for which work after the school hours will be required, pending no additional activities on campus after hours on Fridays.

Question 4: Is weekend (Saturday and/or Sunday) work allowed?

Response: Due to construction anticipated to be during the school year work after school hours will be required, which can include Saturday and Sunday, pending no additional activities on campus on these days.

Question 5: Are there specific assemblies that you would like us to use from FL Approval FL1654 –

R38?

Response: Utilize assembly within the FL Product Approval that meets the minimum wind pressure requirements stated in construction documents.

Question 6: Can we use one of the alternate manufacturers listed (Soprema, GAF, JM, Siplast) as the base bid option? The spec contradicts itself regarding this.

Response: The provided specification states that Polyglass is to be used as the basis of design and is to be the base bid option. Other manufacturers can be provided as alternates for review, but must meet or exceed the specified Polyglass product requirements.

Question 7: If we use a manufacturer like GAF, who does not have an aluminum clad faced cap sheet to be used for flashings, how would we approach that detail/requirement?

Response: If GAF does not meet the requirements listed in the construction documents than it cannot be used or GAF would have to allow another manufacturer’s product to be used and still cover it under their warranty for GAF be considered as an acceptable alternate manufacturer.

Question 8: Where nailers are assumed to be existing now, are they to remain in place and be re-fastened and re-used? Or are new wood nailers required throughout?

Response: Refer to details in construction documents. Nailers are to be refastened and reused, however if they are damaged they are to be replaced with new Nailers.

Question 9: Has an asbestos survey been performed on these buildings? If so, please provide the testing results.

Response: Yes, asbestos survey has been conducted. See attached asbestos survey provided with these responses.

Question 10: Are we required to deliver any removed equipment to the Walter Pownall Service Center?

Is any removed equipment to be salvaged? If so, please provide specifics in regards to what is to be salvaged?

Response: None of the removed equipment is to be salvaged.

Question 11: The contract states 150 calendar days for job completion, however, the summary of work section states 60 days for job completion. Please provide clarity.

Response: 150 calendar days for job completion is the correct construction duration to be followed.

Question 12: Spec states that there will be work by others including “owner furnished – owner installed equipment” and “owner systems”. Does this include anything that would involve any additional roofing work/flashing?

Response: The only item that is to be done by others (the lighting horn manufacturer) is the lighting horn system on Buildings 6 &19. All other items on the project are to fall under the contractor’s purview to include in their bid.

Question 13: The spec mentions Melrose Elementary School. Should this be disregarded?

Response: This reference can be disregarded in the specifications.

Question 14: Spec mentions a $50,000.00 contingency on some pages but also lists $49,000.00 contingency on some pages and the bid form. What is the contingency amount to be carried?

Response: Contingency amount was clarified in Addendum #4, for which contractor is to carry a 10% contingency amount.

Question 15: At what day of the week and what time is the mechanical/electrical/plumbing work to be performed if interior access is required?

Response: This will be coordinated at the time of preconstruction with the awarded contractor. All work will be done after school hours during the school year.

Question 16: Are we to install new framing and supports for doors, extruded stair nosing and trends, structural steel door frames, floor plates and supports, pipe bollards, anywhere? Section 05 50 00 lists these in the spec but they are not indicated on plans?

Response: Whatever work is shown in the plans is what is included in the scope of work. Doors, stairs nosing’s, bollards, floor plates are not included in the scope of work. Section 05 50 00 provides guidance as to the specification for the miscellaneous structural steel scope on the project related to the mechanical unit supports.

Question 17: Spec says to install ladders “including at least one at each elevator pit”. There are no elevator pits on this project. Please provide clarity.

Response: Please refer to the construction drawings for the scope of work on the project. There is no elevator scope on this project.

Question 18: Are we to install plywood backing panels anywhere?

Response: There should be no plywood backing panels anywhere, however for any required stucco repairs there may be plywood or DensDeck board that may need repaired, depending on what the existing conditions present during construction.

Question 19: Spec says to install an SBS-modified bituminous membrane roofing system but the

PolyGlass plies listed in the addendum are APP rolls and not SBS rolls. Please provide clarity.

Response: APP rolls that are listed in the addendum specification are to be utilized

Question 20: Spec mentions that curbs are to be minimum 18” above the roof surface. Florida Building

Code only requires that curbs be a minimum 8” above the roof surface. Is an 8” minimum flashing height acceptable?

Response: 18” minimum curb height, as stated in the drawings and specifications, is to be provided.

Question 21: Are we to install a rooftop walkway anywhere? Mentioned in the spec but not shown on plans.

Response: Yes, refer to Note #15 on the new roof plans for the locations of the rooftop walkway pads.

Question 22: Are we to install any “valve chart enclosed in an aluminum frame with clear plastic shield”?

If so, how many and where?

Response: Please clarify what valves are being referred to. We are not aware of any MEP valve chart that would be required for this project. We are not doing anything with chilled or potable water on this project.

Question 23: Are we to install any access doors for walls and ceilings? If so, how many and where?

Response: No

Question 24: Where specs and plans contradict, which is to prevail as the basis of design?

Response: If there is a discrepancy between the specifications and drawings specific questions should be asked for clarification. Drawings will typically take precedence over the specifications, however questions should still be asked regarding any discrepancies for clarification.

Question 25: The scope of work in section 22 05 10 says that demolition and new work are “to be defined by design professional”. This information would need to be provided as soon as possible if it is to be included in the base bid amount.

Response: This statement in spec section 22 05 10 should state “Refer to the drawings for all scope of work”. All demo and new work is shown on the drawings.

Question 26: Plans mention that all debris shall be removed from the site daily. Can dumpsters remain on site until full? Once full we would take them to an approved dumping facility.

Response: As long as the dumpsters are in an enclosed and secure construction staging area they can remain. If not, they need to be removed daily.

Question 27: Is an entirely new cast iron drain assembly required? Construction notes say to replace strainer, clamping ring, and hardware. Detail 6 on page A5.2 show an entirely new drain bowl but also say a retrofit drain assembly is acceptable. Plumbing plans show new drains. Please provide clarity.

Response: Yes, new cast iron drain assembly is to be provided.

Question 28: Note 17 on demolition plans says “existing gutters to be removed and downleads all to be removed and reinstalled after new gutter is installed”. Notes 13 and 14 on construction notes say to provide new aluminum downspouts. Please provide clarity on if we are to provide new downspouts or to re-use the existing?

Response: New gutters and downspouts are to be provided.

Question 29: If existing downspouts are to remain in place, is removal and reinstall required? Or can we just attach the new gutter to the existing downspouts as they are now?

Response: New downspouts are to be provided.

Question 30: Please provide the minimum thickness and maximum thickness of the existing tapered insulation and/or LWC at each roof section in order to properly account for tear off labor, dumpsters, and appropriate fastener length.

Response: Refer to provided Roof Nuclear Moisture Survey Report in Addendum #4 that provides thicknesses for existing tapered insulation and LWC.

Question 31: Please provide the thickness of the existing flat insulation on each relevant roof section in order to properly account for tear off labor and dumpsters.

Response: Refer to provided Roof Nuclear Moisture Survey Report in Addendum #4 that provides thicknesses for existing insulation.

Question 32: Are all metals to be mill finish? Spec, plans, and details all contradict.

Response: All metals are to be mill finish to match existing.

Question 33: Note 19 on construction notes says to install 1.5” rigid iso and ¼” densdeck at roof at roof scupper. What is this trying to convey? Is the tapered iso to have a 1.5” minimum start? Also, this says

DensDeck but spec and plans mention Sopraboard as the cover board in most other places. Please provide clarity.

Response: Please refer to tapered insulation plans for required insulation thicknesses at the roof drains where new insulation is being installed. ¼” Sopraboard is to be utilized as the cover board.

Question 34: Are we to provide an R-25 minimum or R-25 average for tapered insulation?

Response: R-25 minimum is to be provided for the tapered insulation.

Question 35: Where the existing structure is sloped and we are to install new flat rigid insulation, what is the thickness of insulation required?

Response: Please refer to the tapered insulation plans in the construction documents for the required insulation thickness.

Question 36: Please confirm that roof areas where LWC is to remain that no insulation is to be installed, only a cover board.

Response: Correct, where LWC is remaining only a new ¼” Sopraboard cover board is to be installed and secured to the top flute of the existing metal deck.

Question 37: Are we required to install a “temp layer with 0.5” Dexcell Board” on areas that are structurally sloped and not receiving new tapered insulation? This is typically only done when new tapered insulation is to be installed. (Example – Roof D is structurally sloped and to receive flat iso but details show a temp layer).

Response: No

Question 38: Note 24 on construction notes say to install surface mount aluminum guardrail assembly and then reference detail 3/A5.4. The detail referenced shows a roof mounted guardrail system. Please provide clarity on attachment method.

Response: Detail provided on sheet A5.4 is to be provided, which attachment for the new guardrail provided to the roof structure.

Question 39: Can you please explain what the purposes of the trenches are on buildings 6 and 19?

Also, why do the trenches not extend all the way to the drain? This would help me to better understand the install required.

Response: The trenches are acting as the overflow drawings for the roof in lieu of internal overflow drains. The trenches do not extend all the way to the roof drains as they are acting as the secondary overflow drains for each roof drain.

Question 40: Detail 3 and detail 4 on page A1.3 show trenches but do not provide a detail on the exact construction of the trench. Please provide a detailed drawing showing how these trenches are to be constructed and installed.

Response: The tapered insulation is to be modified accordingly to accommodate the trenches. Overall dimensions and slopes for the trenches have been provided in the construction documents and are to be coordinated during the installation of the tapered insulation.

Question 41: A contractor is provided to perform the work required at the lighting protection horn system. Are there any preferred contractors to perform the mechanical or electrical work?

Response: The manufacturer of the lighting protection horn, as provided in the construction documents, is to handle all work associated with the lighting protection how system. All other work on the project does not require any specific contractor.

Question 42: A tapered insulation plan is provided for all buildings except building 3.

Response: All existing LWC is to remain on Building 3, thus no tapered insulation is required for building

3.

Question 43: Plans page A1.4 state that building 28 has a flat deck existing and is to receive tapered insulation. Plans page A1.7 show that we are to install 4.5” flat iso on field of roof and only install crickets between drains. These directly contradict one another. Please provide clarity.

Response: Building 28 has a sloped structure. Tapered insulation layout, as provided in the construction documents, is to be followed for Building 28.

Question 44: Detail 1 on page A5.1 show a 16 gauge galvanized steel cleat. Is this correct? Previous pages of plans mention 050 edge metal with 050 cleat. Typically the cleat is made from the same metal as the edge flashing but one gauge thicker. Please provide clarity on what gauge cleat is to be used for edge metal.

Response: All cleats are to be .063 aluminum.

Question 45: Are we required to flash mechanical stands with stainless steel flashing boots? Spec said that all penetrations would be flashed with PMMA liquid flashing.

Response: Liquid flashing is to be used.

Question 46: Stainless steel or “S.S.” is listed on many detail. This contradicts with aluminum mentioned in all the construction notes and spec documents. Are metals on this project to be aluminum or stainless steel?

Response: All fasteners utilized are to be stainless steel. Aluminum is to be utilized (0.050, 0.063 for cleats).

Question 47: The plans show leader heads as 040 aluminum in some details and 050 aluminum in other details. Please provide clarity.

Response: 0.050 aluminum is to be used.

Question 48: The plans show downspouts as 040 aluminum in some details and 050 aluminum in other details and even as 032 in some places. Please provide clarity.

Response: 0.050 aluminum is to be used.

Question 49: Detail A-9 shows plywood on walls. This is not reflected in other details. This is a torch applied system, a plywood substrate is not suggested due to potential for fire.

Response: Correct, plywood is only present at top of parapet wall, as shown in other parapet details in the documents. Detail as shown is to be followed.

Question 50: Page M1.1.3 show scope items located on low roof between buildings 1 and 3. This roof cannot be seen from aerial imagery. Please provide pictures or an aerial image to show exactly where this roof area is.

Response: The low roof between buildings 1 and 3 is the continuation of the roof over the exterior corridor. See attached image circled in blue.

Question 51: For mechanical plans – What does FAI mean or represent? This is shown on plans but not provided in any of the legends.

Response: FAI refers to a Fresh Air Intake.

Question 52: Mechanical plans show single ply flashings for details. Please confirm this is incorrect and to be ignored.

Response: Correct, this is incorrect. Single ply is not to be used.

Question 53: Are we to install new grease guards at exhaust fans?

Response: Please clarify. Is this referring to grease drains on the exhaust fans? If so, yes this should be provided.

Question 54: It is very hard to acquire subcontractor quotes for mechanical, electrical, and plumbing work when ample time was not provided for a site visit at all buildings. We recently submitted RFIs regarding another site visit. While we await answers to RFIs and a possible second site visit, is a bid extension and RFI extension possible? This would allow proper time to acquire subcontractor quotes after RFI responses are provided and a proper full site visit of the building is completed.

Response: Additional site visits are allowed and are to be scheduled through the Head Plant Operator at

Northeast HS, whose phone number was provided at the pre-bid meeting. The deadline for additional information or clarifications has already been extended from June 3rd to June 6th. The due date for the bid has already been extended from June 10th to June 20th. No further extensions will be given.