Amendment No.0001 to RFQ 19KS7026Q0039.pdf

NSN 7540-01-152-807030-105 STANDARD FORM 30 (REV. 10-83) PREVIOUS EDITION UNUSABLE

Computer Generated Prescribed by GSA FAR (48 CFR) 53.24

RFQ No. 19KS7026Q0039

Questions & Answers

Cement Rooftile Replacement Work

Question No.1: Chimney Closure & Reinforcement Scope

Please clarify if the current chimney opening is closed off only with interior plywood, or if additional structural reinforcement (e.g., framing, metal hardware/bracing) has been implemented.

Answer:

The chimney consists of an interior lining, an exterior reinforced CMU wall, and a concrete cap on top. There is no structural reinforcement applied for closure within the scope of demolition.

Question No.2: Roof Opening Treatment & Specifications

Please confirm whether the contractor is responsible for structural reinforcement (e.g., framing installation, deck infill) of the roof opening remaining after chimney demolition. If applicable, please also provide the required construction specifications and standards for this work to ensure accurate cost estimation.

After the chimney demolition, the contractor must directly close the opening. Regarding the method of closing the opening, the contractor must submit shop drawings. Please refer to the photo of the chimney currently being demolished below.

Question No.3: Construction Water & Power Supply

Please confirm the availability of on-site water and power during construction.

The use of 110V electricity and water is available at the construction site.

Question No.4: Site Photos for 4 Target Buildings

To enhance our pricing accuracy, we request site photos of the roof and chimney areas of the four buildings. Specifically, photos showing the following would be greatly appreciated for our quantity estimation and method selection:

- Chimney flashing conditions

- Existing battens and decking status

- Eave edge treatment/details

Photos of the houses scheduled for construction have been attached.

Question No.5: Request for CAD (DWG) Files

We request the electronic CAD (DWG) files for the drawings (A1–A4) distributed at the site briefing to ensure precise quantity estimation and construction planning.

Electronic drawing files are not provided other than the hard copies provided at the site.

Question No.6: Safety Shelter Installation Criteria

Regarding the pedestrian safety shelters required during construction, please clarify if satisfying the minimum scope—based solely on the front width of the entrances—complies with the requirements.

Criteria regarding the minimum width and height are described in the SOW.

Question No.7: Safety Shelter Installation Criteria Please confirm if the safety shelters need to be extended continuously along the entire pedestrian pathway, and whether there are separate requirements for the installation length (e.g., specific meters or designated zones).

The safety shelter in the SOW is built with a scaffolding frame and finished with plywood and

Danpla (corrugated plastic) sheets. Although the length varies by site, it only needs to start from the edge of the entrance eave and extend straight beyond the work range of the double-row scaffolding.

Question No.8: Safety Shelter Installation Criteria

Please confirm if the safety shelters need to be extended continuously along the entire pedestrian pathway, and whether there are separate requirements for the installation length (e.g., specific meters or designated zones).

The safety shelter in the SOW is built with a scaffolding frame and finished with plywood and

Danpla (corrugated plastic) sheets. Although the length varies by site, it only needs to start from the edge of the entrance eave and extend straight beyond the work range of the double-row scaffolding.