CEMS response JB Charleston - Question and Answer Form.pdf

JB Charleston Offeror Question and Answer Form

Specification Reference

(Section & Paragraph

Reference, i.e. 23 00 00, para 1.3)

Drawing Reference

(Sheet and Detail or

Note Reference, i.e.

M-101, Detail 2)

Solicitation Reference

(Section, paragraph, sub-paragraph Reference, i.e.

Section M, Paragraph 2.3)

Attachments or Other

(i.e. Submittal Register, Wage Determination, Site

Visit Note, etc.)

22 00 00

P501, P102

22 00 00

P501, P102

23 30 00

M601

23 64 26

M301, M401, 23 64 26

M102

20231211 Review Comments

Solicitation Number

Project Name:

Answer

Question

Question

Answer

Domestic hot water pipe sizes are all missing, please provide

CEMS Responses added 20 DEC 2023

DKFX 19-1072202

JBC Repair Dormitory B460

NOTICE TO OFFERORS

Any offeror desiring an explanation or interpretation of the solicitation, drawings, specifications, etc., must request it in writing soon enough to allow a reply to reach all offerors before the submission of their proposals. Oral explanations or instructions given before the award of a contract will not be binding. Answers to offeror questoins concerning a solicitation will be posted to sam.gov, if that information is necessary in preparing proposals or if the lack of it would be prejudicial to others.

See asbuilts sheet 3

Answer

See asbuilts Sheet P3.

See asbuilts Sheets M15 and M23.

See sheet M-106 for main pipe sizes. Branch piping for chilled water shall be 2" and hot water shall be 1-1/2"

The main HHW pipe serving the 4 VAVs shall be 3/4" with 1/2" pipe running to each VAV.

Answer

Question

CHW & HHW Pipe Sizes are all missing, please provide

Answer

Question

HHW Pipe Sizes are all missing, please provide

GAS pipe sizes are all missing, please provide

Question

There is no Air Distribution schedule provided, please provide

Specification Reference

(Section & Paragraph

Reference, i.e. 23 00 00, para 1.3)

Drawing Reference

(Sheet and Detail or

Note Reference, i.e.

M-101, Detail 2)

Solicitation Reference

(Section, paragraph, sub-paragraph Reference, i.e.

Section M, Paragraph 2.3)

Attachments or Other

(i.e. Submittal Register, Wage Determination, Site

Visit Note, etc.)

Solicitation Number

Project Name:

CEMS Responses added 20 DEC 2023

DKFX 19-1072202

JBC Repair Dormitory B460

NOTICE TO OFFERORS

Any offeror desiring an explanation or interpretation of the solicitation, drawings, specifications, etc., must request it in writing soon enough to allow a reply to reach all offerors before the submission of their proposals. Oral explanations or instructions given before the award of a contract will not be binding. Answers to offeror questoins concerning a solicitation will be posted to sam.gov, if that information is necessary in preparing proposals or if the lack of it would be prejudicial to others.

23 64 26 DM & M Sheets

22 00 00 P-001, P-102

22 00 00 P-001

M-704 Detail 3 photo attached as well

M-706 Detail 1

Piping tie-ins are located on sheet M-106

Question

CHW & HHW Pipe Tie-in-to-existing points are not indicated, please provide

Answer

Question

Please define the orientation (Vertical or Horizontal) and maximum dimentions of the hot water storage tank. Nominal

1,500 Gallon storage tanks (+/- 5%) come in a variety of sizes to suit the installed space.

Answer

Hot water storage tank to be replaced like and kind. Please see sheet P-001 and asbuilt sheets P1 and P3

Question

Water heater schedules call out concentric vent kits. These are not available on gas appliances with vents larger than

6". Please confirm that individual sidewall combustion air and flue vents, 8" Diameter, will be acceptable, per NFPA.

Answer

These are acceptable. Install per manufacturers recommendations and with proper seperation.

Question

There is a note that says "See systems diagrams for 2-way or 3-way control valve requirements". There is also a note in the sequence that says, " Modulating 2-way control valves shall be provided for all VAV box hot water coil and shall be shut in the event there is no call for heating. On the site walk, the one VAV we saw appeared to have a single stage of electric heat and no hot water coils. The existing building automation system also shows all the VAV boxes as electric heat. Can you please confirm quantity of boxes that have hot water coils? And if there are any 3-way valves, can those be noted?

Answer

New VAVs serving the common area, located in the mechanical room will have heating hot water coils. Please see Sheet

M-102.

Question

In the Sequence, it says "The DDC system shall measure the chilled water flow rate and start the chiller". There is no flow meter shown on the controls diagram. A Chiller needs to typically see flow status, via a flow switch, in order to start. Not flow rate. The chiller will come with its won flow switch. If actual flow rate is desired , can you please show that on the controls diagram as an instrument?

Answer

Specification Reference

(Section & Paragraph

Reference, i.e. 23 00 00, para 1.3)

Drawing Reference

(Sheet and Detail or

Note Reference, i.e.

M-101, Detail 2)

Solicitation Reference

(Section, paragraph, sub-paragraph Reference, i.e.

Section M, Paragraph 2.3)

Attachments or Other

(i.e. Submittal Register, Wage Determination, Site

Visit Note, etc.)

Solicitation Number

Project Name:

CEMS Responses added 20 DEC 2023

DKFX 19-1072202

JBC Repair Dormitory B460

NOTICE TO OFFERORS

Any offeror desiring an explanation or interpretation of the solicitation, drawings, specifications, etc., must request it in writing soon enough to allow a reply to reach all offerors before the submission of their proposals. Oral explanations or instructions given before the award of a contract will not be binding. Answers to offeror questoins concerning a solicitation will be posted to sam.gov, if that information is necessary in preparing proposals or if the lack of it would be prejudicial to others.

M-702 Detail 1

M-702 Detail 1

M-702 Detail 2

M-402 Sheet keynote M4

M-702 Detail 3

The existing chiller is to remain. It is acceptable to use the existing chiller proof of flow device in leiu of flow rate. "

Upon proof of chilled water flow the DDC system shall start the chiller"

Question

The dehumidifers do not appear on the system network architecture riser diagram, nor are they scheduled to be provided with a BACnet card. Can you confirm these are intended to be stand alone units not integrated to the building automaion system?

Answer

Dehumidifiers will be stand alone.

Question

There is a note the system is to be able to be integarated into the base wide BACnet utility monitiring system. The exisitng system is tied into the Trane base wide control monitoring system located in CAFB B 721. Is this the system you are referring to?

Answer

Yes

Question

The HVAC Emergency Stop button and the Boiler Emergnecy stop button's locations are not shown on the plans. Can you please indicate where those will need to be located?

Answer

Near the exit door in mechanical room 152.

Question

The existing communcations wiring between the VAV boxes and the central controller can be reused and converted to

BACnet/MSTP. Will this be acceptable?

Answer

Wiring that can be converted and is in good working order can be reused.

Question

The controls diagram shows space humidity sensors being installed. The sequence does not call for anything to be done with that data, nor are the VAV boxes capable of directly controlling space humidity. Is it necessary for each space to get a humidity sensor?

Humidity sensors are polled by the air handlers for dehumidifiation control.

Specification Reference

(Section & Paragraph

Reference, i.e. 23 00 00, para 1.3)

Drawing Reference

(Sheet and Detail or

Note Reference, i.e.

M-101, Detail 2)

Solicitation Reference

(Section, paragraph, sub-paragraph Reference, i.e.

Section M, Paragraph 2.3)

Attachments or Other

(i.e. Submittal Register, Wage Determination, Site

Visit Note, etc.)

Solicitation Number

Project Name:

CEMS Responses added 20 DEC 2023

DKFX 19-1072202

JBC Repair Dormitory B460

NOTICE TO OFFERORS

Any offeror desiring an explanation or interpretation of the solicitation, drawings, specifications, etc., must request it in writing soon enough to allow a reply to reach all offerors before the submission of their proposals. Oral explanations or instructions given before the award of a contract will not be binding. Answers to offeror questoins concerning a solicitation will be posted to sam.gov, if that information is necessary in preparing proposals or if the lack of it would be prejudicial to others.

Question

The text signs are shown in outdoor areas but don't appear to be designated as weatherproof, Are they required to be in weatherproof enclosures?

Answer

Yes

20231212 Review Comments

Question

Manual Pull Stations are shown in outdoor areas but are not designated as weatherproof. Ate they required to be weatherproof?

Answer

Yes

Question

There are three local operating consoles that are shown in breezeways. Are these required to be weatherproof?

Answer

Yes

Question

There were several areas where the existing EFIS has damage or holes in it. Will these areas be required to be repaired?

Answer

EIFS should be repaired. See "GENERAL EXTERIOR INSULATION FINISH SYSTEM (EIFS) NOTES" on Sheet A-003.

Question

01 57 19.00 31 para 3.6.1 - Are Dumpsters required to be painted the standard base color? If so what color is that?

Answer

Specification states to paint dumpsters. Verify color with Base.

Specification Reference

(Section & Paragraph

Reference, i.e. 23 00 00, para 1.3)

Drawing Reference

(Sheet and Detail or

Note Reference, i.e.

M-101, Detail 2)

Solicitation Reference

(Section, paragraph, sub-paragraph Reference, i.e.

Section M, Paragraph 2.3)

Attachments or Other

(i.e. Submittal Register, Wage Determination, Site

Visit Note, etc.)

Solicitation Number

Project Name:

CEMS Responses added 20 DEC 2023

DKFX 19-1072202

JBC Repair Dormitory B460

NOTICE TO OFFERORS

Any offeror desiring an explanation or interpretation of the solicitation, drawings, specifications, etc., must request it in writing soon enough to allow a reply to reach all offerors before the submission of their proposals. Oral explanations or instructions given before the award of a contract will not be binding. Answers to offeror questoins concerning a solicitation will be posted to sam.gov, if that information is necessary in preparing proposals or if the lack of it would be prejudicial to others.

Please confirm that there is no work to be done in Bldg. 469.

Answer

Sheet CS 101 calls for connections on the opposite side of N. Davis Drive.

Question

01 45 00 Section - 01 45 00 states to coordinate scheduled work with special inspections required by Section 01 45 35

Special Inspections. I don’t find section 01 45 35 in the specifications. Please provide if required.

Answer

There are no Special Inspections required.

Question

Will any exterior painting be required? Walls, Doors, etc…

Answer

Yes, see sheet I-601.

Question

Page 48 of 58. 3b. Past performance surveys - Due to COVID, most contracting agencies are allowing 5-6 years from issue date for relevant past performance. Can you change the past performance from 3 years to 6 years (or 5)?

Answer

Government to respond

Question

Solicitation - Will the bid due date be extended due to the holiday and new year season, or is this a hard date to plan with.

Answer

Government to reply

20231219 Review Comments

Specification Reference

(Section & Paragraph

Reference, i.e. 23 00 00, para 1.3)

Drawing Reference

(Sheet and Detail or

Note Reference, i.e.

M-101, Detail 2)

Solicitation Reference

(Section, paragraph, sub-paragraph Reference, i.e.

Section M, Paragraph 2.3)

Attachments or Other

(i.e. Submittal Register, Wage Determination, Site

Visit Note, etc.)

Solicitation Number

Project Name:

CEMS Responses added 20 DEC 2023

DKFX 19-1072202

JBC Repair Dormitory B460

NOTICE TO OFFERORS

Any offeror desiring an explanation or interpretation of the solicitation, drawings, specifications, etc., must request it in writing soon enough to allow a reply to reach all offerors before the submission of their proposals. Oral explanations or instructions given before the award of a contract will not be binding. Answers to offeror questoins concerning a solicitation will be posted to sam.gov, if that information is necessary in preparing proposals or if the lack of it would be prejudicial to others.

Does JBC have the existing soil borings when the dormitory was originally designed.

Answer

See attached geotech report dated 7/25/22 prepared by Terracon for seismic study

Question

Are the Cove base for LVP Areas - vinyl base or rubber base? Finish schedule notes rubber, specs note vinyl.

Answer

Base shall be rubber.

Question

Please provide details on the tile installation – TCNA techniques for floor, walls in base bid scope

Answer

Install Tile in acordance with handbook for Latex-Portland Cement Mortar thin set per TCNA F113A floor standards. See

3.3.2 of 093010

Question

Please provide general details on membrane for bathroom floors if any, grout (and confirm epoxy).

Answer

Use Epoxy grout. Bathroom floors do not require a membrane. Shower floors shall be sloped to provide positive drainage. Install membrane at shower per TCNA B415 in accordance with 3.3.1 of 093010.

Question

Looking at the Shower floor/wall tile details - are mud bed/liner required for shower floors?

Answer

Yes, mud bed and membrane should be installed to provide positive slope to drain. Install membrane at shower per

TCNA B415 in accordance with 3.3.1 of 093010.

Question

Is it acceptable to use Membrane or use of waterproof backerboard on shower walls (alternate 1 scope).

Specification Reference

(Section & Paragraph

Reference, i.e. 23 00 00, para 1.3)

Drawing Reference

(Sheet and Detail or

Note Reference, i.e.

M-101, Detail 2)

Solicitation Reference

(Section, paragraph, sub-paragraph Reference, i.e.

Section M, Paragraph 2.3)

Attachments or Other

(i.e. Submittal Register, Wage Determination, Site

Visit Note, etc.)

Solicitation Number

Project Name:

CEMS Responses added 20 DEC 2023

DKFX 19-1072202

JBC Repair Dormitory B460

NOTICE TO OFFERORS

Any offeror desiring an explanation or interpretation of the solicitation, drawings, specifications, etc., must request it in writing soon enough to allow a reply to reach all offerors before the submission of their proposals. Oral explanations or instructions given before the award of a contract will not be binding. Answers to offeror questoins concerning a solicitation will be posted to sam.gov, if that information is necessary in preparing proposals or if the lack of it would be prejudicial to others.

Sheet A-401

S-101 thru S-106

03 30 00 Cast-in-Place

Concrete

A - 111, A112, Detail -

A22, A - 113, 114, 115, 116 , Detail - A23, 20231219 Review Comments

Answer

Government to respond

Question

The structural drawings legend indicates a new CMU wall, but the plans do not specify the locations of these new CMU walls. A/E, please confirm whether there are indeed no new CMU walls.

Answer

New CMU will be required to rebuid around new openings as indicated on sheet S-401 and detailed S-501. See

Architectural Demo sheets for extent of CMU demolition and for additional repairs, where applicable.

Yes, waterproof backerboard is acceptatble. Install membrane at shower per TCNA B415 in accordance with 3.3.1 of

Specification 093010.

Question

Please clarify any vertical locations for bullnose trim other than the outside corner that extends beyond shower- i.e., do we need bullnose at door frames (top/sides) or other ending points, or just at outside corners?

Answer

Use a bull nose tile anywhere there is a raw edge.

Question

A/E please confirm whether a high-strength Epoxy, meeting or exceeding the required concrete PSI strength is deemed an acceptable alternative.

Answer

Please clarify to what material and application this being proposed as an alternative.

Question

We consider that existing long walls on Grid C and E are load bearing and they are to be covered with furring and STC

Rating Gypsum board both sides.

Answer

Question

On Sheet A-401, under Sheet Keynotes, it states, "A9 New Casework – Additive Bid item." However, the bid form does not include an item for these components. Should these items be added to CLIN 2 or is this a typo? AE, please verify.

Specification Reference

(Section & Paragraph

Reference, i.e. 23 00 00, para 1.3)

Drawing Reference

(Sheet and Detail or

Note Reference, i.e.

M-101, Detail 2)

Solicitation Reference

(Section, paragraph, sub-paragraph Reference, i.e.

Section M, Paragraph 2.3)

Attachments or Other

(i.e. Submittal Register, Wage Determination, Site

Visit Note, etc.)

Solicitation Number

Project Name:

CEMS Responses added 20 DEC 2023

DKFX 19-1072202

JBC Repair Dormitory B460

NOTICE TO OFFERORS

Any offeror desiring an explanation or interpretation of the solicitation, drawings, specifications, etc., must request it in writing soon enough to allow a reply to reach all offerors before the submission of their proposals. Oral explanations or instructions given before the award of a contract will not be binding. Answers to offeror questoins concerning a solicitation will be posted to sam.gov, if that information is necessary in preparing proposals or if the lack of it would be prejudicial to others.

A - 111, 112, 113, 114, 115, 116

A - Drawings

A- 401

A - 101

A - 101

Question

We Consider that walls at Linen, Electrical, Laundry and Mechanical rooms are existing CMU walls and they are to be covered with furring and STC Rating Gypsum board both sides.

Question

We consider that wall type XXJ is the additionally attached with new wall either Fire Rating or STC Rating wall.

Answer

Demolish existing finishes to stud face and replace with new TILE ON 1/2" CEMENT BD. ONE SIDE per wall type XXJ.

Question

We consider that Walls on Grid 2, 4, 5, 6, 7 , 8A and beyond 8A are load bearing and they are to be covered with furring and 1 Hour Fire Rating Gypsum board both sides. (Refer Drawing A-101).

Answer

Nearly all the existing CMU walls are furred or have stud backup and finished with sheetrock and do not require new furring or new studs or new sheetrock except for walls along grid line 7 and 11 which require new furring and gypsum over the existing gypsum to remain to cover up the new angle at the floor as shown in detail 6/S-301 at floors 2 and 3.

All remaining sheetrock at furred/backup walls and ceilings and EIFS is only to be selectively demolished to make seismic upgrades and then the sheetrock is to be replaced.

Question

Height of Gypsum board ceiling?

Answer

It is not intended to have the ceilings removed and replaced unless the contractor chooses to do so for their own purposes. The ceiling is to be removed and replaced only to the extend required to perform the above ceiling seismic work. Any new ceilings are to match existing elevations.

Question

Insulation type for Fire Rating and STC Rating walls.

Answer

We are not aware of a location on the drawings requiring new sound batt insulation in new stud walls. If replacing existing, the new insulation should match existing in like and kind.

The exterior walls along grid lines C and E are for the most part existing to remain. No additional interior finish work is required on these walls excpet as indicated to address the structural seismic upgrades

Specification Reference

(Section & Paragraph

Reference, i.e. 23 00 00, para 1.3)

Drawing Reference

(Sheet and Detail or

Note Reference, i.e.

M-101, Detail 2)

Solicitation Reference

(Section, paragraph, sub-paragraph Reference, i.e.

Section M, Paragraph 2.3)

Attachments or Other

(i.e. Submittal Register, Wage Determination, Site

Visit Note, etc.)

Solicitation Number

Project Name:

CEMS Responses added 20 DEC 2023

DKFX 19-1072202

JBC Repair Dormitory B460

NOTICE TO OFFERORS

Any offeror desiring an explanation or interpretation of the solicitation, drawings, specifications, etc., must request it in writing soon enough to allow a reply to reach all offerors before the submission of their proposals. Oral explanations or instructions given before the award of a contract will not be binding. Answers to offeror questoins concerning a solicitation will be posted to sam.gov, if that information is necessary in preparing proposals or if the lack of it would be prejudicial to others.

AD - 401

A - 101, 103, 105

A - 111, 112, 113, 114, 115, 116

AD - 101,102, 103,

104, 105, 106, Detail -

DA17

AD - 101,102, detail -

DA18 & AD - 103, 104,

105, Detail - DA21

Question

We consider that for sprinkler provision, the entire ceiling for that area is to to be demolished. If it is in kitchen, remove the ceiling of entire kitchen and same if it is in living unit, remove the ceiling of entre living unit.

Answer

The drawings indicate the amount of ceiling to be demolished and replaced is at the discretion of the contractor. Only the amount required to perform the seismic upgrades or replace the water damaged areas are to be demolished and replaced.

Question

We should demolish the ceiling 2' wide on each side of this common wall.

Answer

The drawings indicate the amount of ceiling to be demolished and replaced to accomplish the new work is at the discretion of the contractor.

Question

What treatment for external wall on Grid F and for staircase wall?

Answer

Please clarify question since there is no wall at grid line F. We are not aware of any work requied at the columns along grid line F. See structural drawings for work required in the stairs, especially keynote S9 and detail 2/S-501.

Question

For gypsum and acoustical ceiling is the wall angle or wall mold required?

Answer

We are not aware of a location where a new supended acoustical ceiling meets a suspended gypsum ceiling.

Answer

We are not aware of a location on the drawings where it requires these rooms to be covered with new furring and gypsum board.

Question

We consider that 10" thick wall between two closets is STC Rated metal stud wall. What size of stud to be used?

Answer

Original construction drawings and new work structural drawings indicate these walls to be CMU. See detail 7/S-301.

STC rating of existing wall to be maintained.

Specification Reference

(Section & Paragraph

Reference, i.e. 23 00 00, para 1.3)

Drawing Reference

(Sheet and Detail or

Note Reference, i.e.

M-101, Detail 2)

Solicitation Reference

(Section, paragraph, sub-paragraph Reference, i.e.

Section M, Paragraph 2.3)

Attachments or Other

(i.e. Submittal Register, Wage Determination, Site

Visit Note, etc.)

Solicitation Number

Project Name:

CEMS Responses added 20 DEC 2023

DKFX 19-1072202

JBC Repair Dormitory B460

NOTICE TO OFFERORS

Any offeror desiring an explanation or interpretation of the solicitation, drawings, specifications, etc., must request it in writing soon enough to allow a reply to reach all offerors before the submission of their proposals. Oral explanations or instructions given before the award of a contract will not be binding. Answers to offeror questoins concerning a solicitation will be posted to sam.gov, if that information is necessary in preparing proposals or if the lack of it would be prejudicial to others.

AD - 101, 102, 103,

104, 105, Detail - DA7

AD - 105, AD - 106,

Detail - DA19

02 41 00 3.1.15

02 41 00 3.1.14

A-101 thru A-106

General Notes 1

Question

A-101 thru A-106 General Notes 1 "All existing expansion joints in the building including EIFS, Concrete walls, elevated concrete walkways, masonry, etc. are to be removed and replace." Document do not show locations to quantify. A/E for bidding purpose please provide quantities or an allowance budget for expansion joints removal and repairs.

Answer

Contractor to verify in the field during site visit.

Question

Question

02 41 00 3.1.15 Electrical Equipment and Fixtures. A/E please confirm that motor, motor controllers, light fixtures, electrical devices (i.e. switches, conduit, conductors, breakers, and etc.) to be removed and salvage.

Answer

Government to respond. Does the Government wish to keep any equipment or parts?

Question

02 41 00 3.1.14 Mechanical Equipment and Fixtures – “Remove and Salvage fixtures, motors and machines associated with plumbing, heating, air conditioning, refrigeration, and other mechanical system installation”. It appears most of the equipment is in poor condition. A/E please confirm if HVAC equipment is to be salvaged and protected from damage.

Answer

Government to respond. Does the Government wish to keep any equipment or parts?

Question

We consider that 1' height from wall base is to be demolished for the internal walls at living unit, closet and kitchen.

These areas 2438 sqft for the project.

Answer

The drawings indicate the amount of wall to be demolished and replaced to accomplish the new work is at the discretion of the contractor.

Question

At third floor, ceiling for all closets is to be demolished ?

Answer

The drawings indicate the amount of ceiling to be demolished and replaced to accomplish the new work is at the discretion of the contractor.

Specification Reference

(Section & Paragraph

Reference, i.e. 23 00 00, para 1.3)

Drawing Reference

(Sheet and Detail or

Note Reference, i.e.

M-101, Detail 2)

Solicitation Reference

(Section, paragraph, sub-paragraph Reference, i.e.

Section M, Paragraph 2.3)

Attachments or Other

(i.e. Submittal Register, Wage Determination, Site

Visit Note, etc.)

Solicitation Number

Project Name:

CEMS Responses added 20 DEC 2023

DKFX 19-1072202

JBC Repair Dormitory B460

NOTICE TO OFFERORS

Any offeror desiring an explanation or interpretation of the solicitation, drawings, specifications, etc., must request it in writing soon enough to allow a reply to reach all offerors before the submission of their proposals. Oral explanations or instructions given before the award of a contract will not be binding. Answers to offeror questoins concerning a solicitation will be posted to sam.gov, if that information is necessary in preparing proposals or if the lack of it would be prejudicial to others.

A-101 thru A-106

General Notes 1

336114 MS101

Question

Spec 336114-2.2 lists out 4 different options for chilled water carrier piping material (Copper, Steel, RTR, and PVC) but does not identify which material type is specifically supposed to be used on this project. Please identify the carrier pipe material to be used on this project.

Answer

The Contractor is to accomplish the new work with materials that match the existing materials.

General Notes #6. Approximately 4,000SF damaged (mold, moisture, physical abuse) gypsum board to be replace. A/E please confirm 4,000SF is for the entire project.

Answer

Note #6 says IN SLEEPING ROOMS DAMAGED BY MOLD, MOISTURE, AND PHYSICAL ABUSE SHALL BE REPLACED. The

4,000 SF is to cover gypsum and metal studs damaged by mold, moisture, and physical abuse and nothing more. All other gypsum to demolished and replaced is above and beyond this 4,000 sf.