3_Questions_and_Answers_Amenment_01.pdf

NAMA 216036 ‐ Restoration of Jefferson Memorial Roof and Portico

National Mall and Memorial Parks

Solicitation Questions and Answers

Amendment 01:

1. Can I please request a two‐week extension to the proposal due date?

ANSWER: The Proposal Submission due date, for both electronic and hardcopies, is extended to

Monday, August 27, 2018 at 1200 MT (1400 ET). The Question period has been extended to

Thursday, August 16, 2018 at 1200 MT (1400 ET).

2. Is the report available for the LASER cleaning mock‐up of the dome?

ANSWER: Yes, the draft Record of Treatment report for the Laser test cleaning of the Dome is attached (PDF) along with some photos of the access.

3. What other masonry cleaning methods were investigated?

ANSWER: This information is generally noted in the Record of Treatment report, but is irrelevant since the project scope of work and specifications call out what cleaning methodology is required for this project.

4. Are there reports available for other methods investigated?

ANSWER: No

5. What is the square‐footage of the masonry surface to be LASER‐cleaned?

ANSWER: This information is provided in the construction drawings and specifications, Sheet

A3.1, and Spec Section 04 01 40.52 – Stone Masonry Cleaning. The Offeror is required to conduct their own estimates of stone surfaces to be laser cleaned.

6. What is the square‐footage of the masonry surface to be cleaned using micro‐abrasion?

ANSWER: Refer to the response to question # 5 above.

7. Will the LASER mock‐up area need to be re‐cleaned?

ANSWER: Yes, the scope of work is to clean all stone surfaces.