Responses to Requests for Information for Solicitation Install Lab Hood.docx

Responses to Requests for Information for Solicitation No. 36C24222B0036 Install Lab Hood 561A4-20-105

Question 1: The new concrete pad for ACCU-1 doesn't specify a thickness for the slab. Can you please let us know the thickness and if there is any footing required for this concrete equipment pad?

Response 1: See attached sketch SK-MH-702.1.

Question 2 ; Please provide more detail on the cabinets and storage cabinets. Which of these are to be plastic laminate which are to be stainless steel metal? As the finish plan says plastic laminate, but there is a spec section for stainless steel cabinets.

Response 2: The lab casework is all metal, configuration as shown, materials and construction per Section 123100.

Question 3: For the epoxy countertops what is the thickness required.

Response 3: Per elevations 5 & 6/AS-201, countertop is 1-1/2” thick.

Question 4: Please provide measurements and dimensions on the plan to show how big the lab room is, the length of the new mechanical room wall, the existing window sizes, etc.

Response 4: Please see attached sketch SK-AS-110.1 with dimensions as reference. Typical existing windows are width 36”, height 79” and sill @ 36” A.F.F. Sill height and window height will need to be V.I.F.

Question 5: Please provide both interior and exterior elevations of the mechanical room set up, as we are not able to price out blocking up the wall or creating new openings for the new ductwork without this detail.

Response 5: New ductwork is to be routed through the existing openings as shown on MH-102. The only required new opening is for a condensate drain from the indoor coil drain pan. Please see attached pictures for additional reference.

Question 6: The plaster walls call to be removed due to the asbestos in the plaster, and there is a detail on the furring partitions, but the floor plan doesn't indicate what walls are to be partition type A, E, F. Please indicate these partitions on the floor plan Response: 6: No furring partition in the project. Please ignore this detail.

Question 7: There is a plan page on scaffolding. Please detail why and where this scaffolding would be required. As a manlift would be sufficient for this work.

Response 7: Scaffolding drawing was provided as reference only. Contractor to determine what equipment is necessary for completion of work. A manlift would be acceptable if all specified and governing safety requirements are met.

Question 8: Please provide a proper paint schedule as on the Mechanical and Sprinkler plans there is a note to paint all exposed sprinkler piping and all exterior ductwork. The only paint listed on the finish schedule is a Sherwin-williams wall paint

Response 8: All exterior ductwork shall be painted to match the existing façade as noted on drawing MH-102. Per specification 09 91 00 Painting, Section 3.12D all exposed fire protection piping should be painted federal safety red. For this project the only location with exposed sprinkler piping is in the new mechanical room. All other sprinkler piping is concealed above the ceiling.

Per specification 09 91 00 Painting, Section 1.3E after painters’ materials are approved and before the work is started, the contractor shall submit sample panels for approval.

Question 9: Note #18 on AS-201 in regard to the cubicle curtain tracks. Please indicate where this is on the plans and how many.

Response 9: No cubicle curtain in the project. Please ignore this note.

Question 10: Please provide more detail in the plaster containing asbestos removal. Please indicate what exactly needs to be removed.

Response 10: The contractor is to remove approximately a one foot (1’) wide strip of plaster from floor through ceiling to expose underlying pipe insulation. Both pipe insulation and plaster are to be removed and disposed of as asbestos-containing material.

Question 11: What type of glass are we to use for replacing the windowpanes to match existing, as per note #5 key notes on plan AS-110.

Response 11: Provide 1” Insulated unit with Low-E coating and tinted to match existing.

Question 12: On plan MH-202 HVAC roof plan. It shows a new plume exhaust fan on the roof. If this is completely new, we need to know the existing roofing system, and if there is a warranty on the roof.

Response 12: The existing is a white membrane roof in good condition and currently not under warranty. Cut and patch as required with compatible materials. Guarantee roofing work in accordance with contract documents.

Question 13: Please indicate the windows sizes and the quantities that require window shades

Response 13: Provide shades as specified at all windows within scope of work. Typical existing windows are width 36”, height 79” and sill @ 36” A.F.F. Sill height and window height will need to be V.I.F.

Question 14: Is it the intent to repair and repoint the exterior masonry and lintels for all floors of the lab area?

Response 14: Yes, that is the intent. See attached sketches SKAS-100.1, SKAS-100.2, SKAS-100.3, SKAS-100.4.