36C24218R0071-00001002.docx

Repair Garage 8th Floor and Drains, 528A7-16-719. Pre-bid RFIs:

1. Are there any other suitable staging areas besides the one shown on drawing L-101? Could access be given to the Police Parking Lot on Irving Ave by the main entrance?

a. ANS: The lot on the northwest corner of Irving Avenue and Van Buren Street could be available for temporary use, such as during concrete placement operations.

2. Is there any restriction on working hours? Weekends allowed? 24 hour work days allowed?

a. ANS: There are no work restrictions on work hours or work days.

3. Are there any noise restrictions for this project?

a. Between the hours of 10pm and 6am, limit noise emissions to 85 dBa at a distance of 30 feet from the garage.

4. Is there any rebar or wire-mesh in existing concrete?

a. No.

5. Could you provide a manufacture spec of the existing waterproofing and drainage mat?

a. The existing waterproofing membrane and drainage mat assembly consists of Carlisle CCW MiraDRI 860/861 membrane, CCW MiraDRAIN 9000 drainage mat, CCW LM-800XL mastic, and CCW-702 adhesive.

6. Only partial shutdown of the 7th floor parking area is allowed?

a. All parking spots on the 7th floor shall be useable except to accommodate repair of the drains, snowmelter, and concrete removal/placement near the expansion joint between the 7th and 8th floors.

7. No rebar is required in the new flooring?

a. Correct

8. Who is responsible for the concrete testing?

a. Spec 033000 states the contractor is responsible for testing. Spec 014529 states the VA is responsible for the testing. Specification 033000 shall be changed to read that the VA will provide concrete testing. The contractor is welcome to provide their own testing, if desired.

9. Are bollards or some type of fencing system required near the new snow melt area?

a. Bollards are not included in the construction documents.

10. Is there any area available for washing out of trucks?

a. Contractor shall contain the concrete spillage, including washing trucks.

11. Can the snowmelter be located to allow 3 feet of clearance behind the unit?

a. The snowmelter needs to be installed in the location shown on the drawings.

12. Should a water line be connected to the snowmelter?

a. No. The snowmelter will be primed using the manual method at the start of the snow season.

13. What is the required density and bearing capacity of the new 2” polystyrene insulation placed under the concrete slab?

a. The 2” EPS insulation shall have a minimum bearing capacity of 35 psi and a density between 2.0 and 2.4 pcf.