Section01736 SelectiveDemo.doc

Solicitation No. AG-95CV-S-09-0020 Recovery – Replace or Repair/Resurface Roofs, Main Bldg

(N.Wing), WAB, & Service Bldg, WRRC, Albany, CA

SECTION 01736 – SELECTIVE DEMOLITION (Section applies to Main Building (North Wing), WAB (Directors Wing), and Service Building roofs)

PART 1 GENERAL

1.1

RELATED DOCUMENTS

A.

General provisions of the Contract, including General and Supplementary Conditions, apply to this Section.

B.

“Supplemental Information – Main Building (North Wing) Roof,” “Supplemental Information – WAB (Directors Wing) Roof,” and “Supplemental Information – Service Building Roof” apply to this Section.

1.2

SUMMARY

A.

This Section includes the following:

1.

Demolition and removal of selected portions of the roofing system.

1.3

DEFINITIONS

A.

Remove: Detach items from existing construction and legally dispose of them off-site, unless indicated to be removed and salvaged or removed and reinstalled.

B.

Remove and Reinstall: Detach items from existing construction, prepare them for reuse, and reinstall them where indicated.

C.

Existing to Remain: Existing items of construction that are not to be removed and that are not otherwise indicated to be removed, removed and salvaged, or removed and reinstalled.

1.4

PROJECT REQUIREMENTS

A.

Regulatory requirements: Comply with governing EPA notification regulations before beginning selective demolition. Comply with hauling and disposal regulations of authorities having jurisdiction.

B.

Standards: Comply with ANSI A10.6 and NFPA 241.

C.

Pre-Demolition Conference: Conduct conference at Project site to establish plan to comply with demolition requirements.

1.5

PROJECT CONDITIONS

A.

The Government will continue to occupy the existing building(s) during selective demolition activities. Perform selective demolition so as to minimize disruption to station operations.

B.

Notify Contracting Officer (CO) of discrepancies between existing conditions and Contract Documents before proceeding with selective demolition.

C.

Hazardous Materials: Hazardous materials are not believed to be present in construction to be selectively demolished. If suspected hazardous material is encountered, do not disturb the material and immediately notify the Contracting Officer’s Representative (COR) in writing. The COR will investigate and issue findings and recommendations within 10 work days of the Contractor’s written notification. The Contractor shall not disturb the material in the interim.

D.

Storage or sale of removed items or materials on-site is not permitted.

E.

Utility Service: Maintain existing utilities and protect them against damage during selective demolition operations.

1.

Maintain fire-protection facilities in service during selective demolition operations.

PART 2 PRODUCTS

Not used.

PART 3 EXECUTION

3.1

EXAMINATION

A.

Survey existing conditions and correlate with requirements indicated to determine extent of selective demolition required.

B.

Inventory and record the condition of items to be removed and reinstalled and items to be removed and salvaged.

C.

When unanticipated mechanical, electrical, or structural elements conflict with Work requirements, investigate and determine the nature and extent of conflict. Promptly submit a written report to COR. The COR will issue findings and recommendations within 10 work days of the Contractor’s written report.

D.

Survey of Existing Conditions: Record existing conditions by use of preconstruction photographs.

3.2

UTILITY SERVICES AND MECHANICAL/ELECTRICAL SYSTEMS

A.

Existing Services/Systems: Maintain services/systems and protect them against damage during selective demolition operations.

1.

Comply with requirements for existing services/systems interruptions as specified in Division 1 and herein.

B.

Utilities and Building Systems Disruptions:

1.

COR will arrange to shut off utilities and building systems when requested by Contractor.

2.

If utilities or building systems are required to be relocated before proceeding with selective demolition, provide temporary services that bypass area of selective demolition and that maintain continuity of services to the building.

3.3

PREPARATION

A.

Site Access and Temporary Controls: Conduct selective demolition and debris-removal operations to ensure minimum interference with walks, walkways, and occupied facilities.

3.4

SELECTIVE DEMOLITION, GENERAL

A.

General: Demolish and remove existing construction only to the extent required by new construction. Use methods required to complete the Work within limitations of governing regulations and as follows:

1.

Remove decayed, vermin-infested, or otherwise dangerous or unsuitable materials and promptly dispose of off-site.

2.

Locate selective demolition equipment and remove debris and materials so as not to impose excessive loads on supporting walls, floors, or framing.

3.

Dispose of demolished items and materials promptly.

B.

Removed and Reinstalled Items:

1.

Clean and repair items to functional condition adequate for intended reuse.

2.

Protect items from damage during transport and storage.

3.

Reinstall items to their original, ‘as-found’ locations to the extent practicable. Comply with installation requirements for new materials. Provide connections, supports, and miscellaneous materials necessary to make item functional for intended use.

C.

Existing Items to Remain: Protect construction to remain against damage and soiling during selective demolition.

3.5

SELECTIVE DEMOLITION PROCEDURES FOR SPECIFIC MATERIALS

A.

Existing Caulking: Remove all existing caulking and backer rod from joints.

B.

Existing Coating: Remove all existing coating to expose a clean, sound substrate.

C.

Remove all non-adhered repair materials.

3.6

DISPOSAL OF DEMOLISHED MATERIALS

A.

General: Except for items or materials indicated to be recycled, reused, salvaged, reinstalled, or otherwise indicated to remain Government's property, remove demolished materials from Project site and legally dispose of them in an EPA-approved landfill.

1.

Do not allow demolished materials to accumulate on-site.

2.

Remove and transport debris in a manner that will prevent spillage on adjacent surfaces and areas.

3.

Remove debris from elevated portions of building by chute, hoist, or other device that will convey debris to grade level in a controlled descent.

B.

Burning: Do not burn demolished materials.

C.

Disposal: Transport demolished materials off Government's property and legally dispose of it.

3.7

CLEANING

A.

Clean adjacent structures and improvements of dust, dirt, and debris caused by selective demolition operations. Return adjacent areas to condition existing before selective demolition operations began.

END OF SECTION 01736

SELECTIVE DEMOLITION

01736 - 1 (Section applies to Main Building (North Wing), WAB (Directors Wing), and Service Building roofs)