01732_02.doc

SECTION 01732

SELECTIVE DEMOLITION

part 1 - GENERAL

1.1 SUMMARY

A. This Section includes demolition and removal of the existing roofing materials prior to installation of the new metal roof.

SPEC WRITER: ADJUST LIST BELOW TO SUIT PROJECT.

1.

Remove and dispose of the following: Wood shingles, roofing felt, metal drip edges, and other metal flashing, and rain gutters.

2.

Remove and reinstall: Lightning protection wires, supports and rods and store in a safe place for reinstallation after new roof is installed.

1.2 MATERIALS OWNERSHIP

A. Except for items or materials indicated to be reused, salvaged, reinstalled, or otherwise indicated to remain Government property, demolished materials shall become Contractor’s property and shall be removed from project site.

1.3 SUBMITTALS

A. Proposed Control Measures: Submit statement or drawing that indicates the measures proposed for use for safety measures for pedestrians entering and existing the building.

1.4 QUALITY ASSURANCE

A. Regulatory Requirements: Comply with all applicable OSHA regulations during demolition work.

1.5 PROJECT CONDITIONS

A. Government will occupy the building scheduled for selective roof demolition. Conduct selective demolition so Government operations will not be disrupted. Contractor shall provide not less than 24 hours’ notice to COR prior to beginning demolition of roof.

1. Do not close or obstruct walkways, parking areas or entrances without permission from the COR.

B. Government assumes no responsibility for condition of areas to be selectively demolished.

1. Conditions existing at time of inspection for bidding purpose will be maintained by Government as far as practical.

C. Hazardous Materials: It is not expected that hazardous materials will be encountered in the Work.

1. If materials suspected of containing hazardous materials are encountered, do not disturb; immediately notify COR. Hazardous materials will be removed by Government under a separate contract.

2. Contractor to immediately contact COR in the event that mold is discovered.

SPEC WRITER: RETAIN PARAGRAPH AND SUBPARAGRAPHS ABOVE AND DELETE FIRST PARAGRAPH AND SUBPARAGRAPHS BELOW IF ASBESTOS IS PRESENT AND GOVERNMENT HAS A SEPARATE CONTRACT TO ABATE ASBESTOS BEFORE SELECTIVE DEMOLITION BEGINS.

PART 2 – PRODUCTS – Not Used

PART 3 – EXECUTION

1.6 EXAMINATION

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

B. Contractor shall contact COR if water damaged wood materials are encountered.

C. When unanticipated mechanical, electrical, or structural elements that conflict with intended work are encountered, promptly contact the COR.

1.7 Protection of roof during demolition

A. Contractor shall be responsible for covering roof during demolition to protect from weather and maintain watertight surface.

B. If water damage occurs to roof due to Contractor’s negligence during wet weather – Contractor shall replace water damaged materials at no expense to the Government.

1.8 UTILITY SERVICES

A. Existing Utilities: Maintain all services to the occupied building and protect them against damage during selective demolition operations.

B. If it is necessary to disconnect existing utilities the Contractor must notify the COR at least one week in advance.

1.9 SAFETY

A.

Remove debris from elevated portions of building by conveying debris to grade level in a controlled descent.

B.

Site Access and Temporary Controls: Conduct selective demolition and debris-removal operations to ensure minimum interference with roads, parking areas, walkways, and other adjacent occupied and used facilities.

1. Erect temporary protection, such as walks, fences, railings, canopies, and covered passageways, barricades where required to protect employees and the public from injury.

2. Protect existing site improvements, appurtenances, and landscaping to remain.

1.10 SELECTIVE DEMOLITION

A. General: Demolish and remove existing construction only to the extent required by new construction and as indicated.

1. Neatly cut openings and holes plumb, square, and true to dimensions required. Use cutting methods least likely to damage construction to remain or adjoining construction.

2. Cut or drill from the exposed or finished side into concealed surfaces to avoid marring existing finished surfaces.

3. Do not use cutting torches until work area is cleared of flammable materials. At concealed spaces, such as duct and pipe interiors, verify condition and contents of hidden space before starting flame-cutting operations. Maintain portable fire-suppression devices during flame-cutting operations.

B. Existing Items to Remain: Protect construction indicated to remain against damage and soiling during selective demolition. When permitted by COR, items may be removed to a suitable, protected storage location during selective demolition [and cleaned] and reinstalled in their original locations after selective demolition operations are complete.

1.11 FINISHED ROOF SURFACE

A. Once demolition is complete the Contractor shall notify the COR who will inspect the roof to insure that all designated and water damaged materials have been removed prior to installing new materials.

1.12 REINSTALLATION OF LIGHTNING PROTECTION SYSTEM

A. After installation of new metal roof including, Contractor shall reinstall the lightning protection equipment such that it is placed in the same configuration that existed prior to new roof installation.

PART 4 – MEASUREMENT AND PAYMENT

4.1 Measurement A. The removal and disposal of the wood shingles shall be measured by the square foot.

B. The removal and installation of the lightning protection equipment shall be measured as a lump sum.

C. The removal and disposal of the existing roofing felt, metal drip edges, rain gutters and other flashing or miscellaneous materials shall not be measured but shall be considered as incidental to other pay items.

4.2 Payment

A. Payment for the above mentioned pay items shall be as follows:

Pay Item Description Unit

01732(01) Remove & Dispose of Wood Shingles SQFT

END OF SECTION 01732

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