7-Sec 02 41 19 Selective Demolition.pdf

Con rete Pool Repair 07.24.2025

FANNY CHAPMAN

SECTION 02 41 19

SELECTIVE DEMOLITION

Fanny Chapman Pool Repairs Doylestown Borough, Bucks Co., PA

Section 02 41 19 - Selective Demolition 08.26.2025

Part 1 - General

1.1 Section Includes

A. Selective demolition as designated or required for proposed Work. Refer to Drawings for additional demolition notes. Work includes, but is not limited to, the following:

1. Selective demolition of designated areas.

2. Careful removal of materials and finishes within the limits of work.

3. Disconnecting, capping, and relocating utilities.

4. Selective demolition of parts of existing utilities as required to construct the new work.

5. Protection of items to remain as indicated on Drawings.

6. Removal of demolished materials from site.

Notify Engineer should temporary support, shoring, formwork, falsework, etc., otherwise known as “Temporary Works” be required for the project prior to proceeding with any demolition or construction.

1.2 Definitions

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

B. Remove and Salvage: Detach items from existing construction and deliver them to the Owner.

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 recycled.

D. Remove and Reinstall: Detach items from existing construction, satisfactorily prepare for reuse, and reinstall where indicated or directed.

1.3 Reference Standards

A. American National Standards Institute

1. ANSI A10.6 - American National Standard Safety Requirements for Demolition.

1.4 Performance Requirements

A. Salvage and recycle demolition waste in accordance with state and local requirements.

B. Coordination:

1. Coordinate utility and building services interruptions with the Owner.

2. Coordinate Work to ensure fire sprinklers, fire alarms, smoke detectors, emergency lighting, exit signs and other life and facility safety systems remain in full operation in occupied areas.

C. Sequencing:

1. Sequence operations to maintain safe working conditions and preserve existing work that is to remain. Complete all under-slab grouting and filling of existing voids beneath pool before commencing any demolition, chipping, milling, or saw cutting activities.

FANNY CHAPMAN

SECTION 02 41 19

SELECTIVE DEMOLITION

Fanny Chapman Pool Repairs Doylestown Borough, Bucks Co., PA

Section 02 41 19 - Selective Demolition 08.26.2025

2. Sequence demolition so as not to undermine or compromise vertical and lateral load carrying capacity of structures and portions thereof that are to remain.

1.5 Submittals

A. Program of methods and time schedule for accomplishing this Work.

B. Existing Building Documentation: Submit reports of inspections and/or photographic surveys conducted with the Owner both before and after performing work.

1.6 Quality Assurance

A. Requirements of Regulatory Agencies:

1. Perform Work in accordance with rules and regulations of state and local agencies having jurisdiction for demolition of structures, safety of adjacent structures, dust control, runoff control, and disposal of debris.

2. Conform to rules and regulations of state and local agencies having jurisdiction if/when hazardous or contaminated materials are discovered.

1.7 Site Conditions

A. Conduct demolition to minimize interference with adjacent and occupied areas.

B. Conduct demolition and debris removal operations to minimize interference with adjacent roads, streets, walks, driveways and other adjacent occupied and used facilities.

C. Conduct demolition and debris removal operations with minimum interference to public or private access. Maintain egress and access from adjacent structures at all times.

D. Cease demolition immediately if structures appear to be in danger. Notify Owner’s Representative. Do not resume operations until directed.

E. Where existing conditions conflict with representations of the Contract Documents, notify Owner’s Representative and obtain clarification. See also inspection requirements under Existing Building Documentation Article. Do not perform work affecting the conflicting conditions until clarification of the conflict is received.

F. Hazardous Materials:

1. It is not expected that hazardous materials will be encountered in the Work.

2. Immediately inform Owner’s Representative if hazardous materials are encountered or suspected and stop work in suspect area. Do not proceed with work in suspected area until approved by Owner’s Representative.

Part 2 - Products - Not Used

Part 3 - Execution

3.1 Existing Pool Documentation

A. Before performance of work, make inspection and report defects and structural weaknesses of structures to be partially demolished, cut, or removed.

FANNY CHAPMAN

SECTION 02 41 19

SELECTIVE DEMOLITION

Fanny Chapman Pool Repairs Doylestown Borough, Bucks Co., PA

Section 02 41 19 - Selective Demolition 08.26.2025

B. Review Project Record Documents of existing construction provided by Owner’s Representative does not guarantee that existing conditions are same as those indicated in Project Record Documents.

C. Determine where removals may result in structural deficiency or unplanned collapse during demolition. Coordinate demolition sequence and procedures to prevent structures from becoming unstable.

D. Verify hazardous material abatement is complete before beginning demolition if applicable.

E. Examine areas affected by work of this Section and verify following:

F. When unanticipated mechanical, electrical, or structural elements are encountered, investigate and measure the nature and extent of the element. Promptly notify the Owner.

3.2 Preparation

A. Consult with Owner prior to commencing demolition work and determine which existing items are to be salvaged and retained or can be reused in the work. These items shall be carefully removed to avoid damage and shall be delivered to Owner or stored as directed.

B. Lay out work to be demolished at job site and coordinate with related work for which cutting is required.

C. Erect and maintain weatherproof closures for exterior openings, when applicable.

D. Existing Utilities:

1. Notify affected utility companies before starting work and comply with their requirements.

2. Mark location and termination of utilities.

3. Take care to ensure that utilities to remain and portions thereof which are not required to be demolished or removed.

4. Locate, identify, disconnect, and seal or cap off indicated utilities serving areas to be demolished as directed by the Owner.

5. Locate, identify, and protect known utilities indicated to remain from damage. Should damage occur, notify Owner’s Representative and repair at no additional cost to the Contract.

6. Verify that those utilities serving occupied portions of buildings, or other site facilities, will not be disturbed.

3.3 Demolition

A. Perform work in accordance with ANSI A10.6 unless otherwise noted.

B. Conduct demolition to minimize interference with adjacent and occupied building areas, or other site facilities.

C. Maintain protected egress from and access to adjacent existing buildings, or other site facilities, at all times.

D. Do not close or obstruct driveways, roadways and sidewalks] without permits or written permission.

FANNY CHAPMAN

SECTION 02 41 19

SELECTIVE DEMOLITION

Fanny Chapman Pool Repairs Doylestown Borough, Bucks Co., PA

Section 02 41 19 - Selective Demolition 08.26.2025

E. Cease operations immediately when structure appears to be in danger and notify Owner’s Representative.

F. Disconnect, cap, and identify designated utilities within demolition areas.

G. Remove designated structures, parts, and finishes at beginning of work to minimize hazardous working conditions and to provide comparatively clean surfaces for installation of new work.

H. Perform demolitions as much as possible with small tools. Demolish in small sections. Remove loading before cutting or removing structural members.

I. Demolish in an orderly and careful manner. Protect existing supporting structural members.

Complete all under-slab grouting and filling of existing voids beneath pool before commencing any demolition, chipping, milling, or saw cutting activities.

J. Concrete and Masonry:

1. Demolish by means of saw cutting, drilling, chipping, breaking, or a combination thereof, as indicated or required to satisfactory accomplish the Work without damage to existing improvements not being removed.

2. If jack hammering is permitted do not jack hammer within 2 inches of reinforcing or structural steel; remove final 2 inches of material with chipping gun.

3. Demolish concrete and masonry in small sections, less than 3 feet in any direction.

4. Cut concrete and masonry at nearest control joint to line shown on the Drawings, so that new concrete and masonry can be installed continuing the adjacent existing joint pattern.

K. At concrete and other materials where edges of cuts and holes will remain exposed in the completed work, make cuts using power sawing and coring equipment. Do not over cut at corners of cut openings.

L. Where existing resilient flooring, carpeting, carpet padding, tile and other similar adhesive or mortar applied finishes are required to be removed to permit application of new finishes, grind, stone, sand or otherwise remove all adhesives, mortar, fasteners, and similar materials to the extent that no ridges, lumps or other protrusions will telegraph through surface of new finish or be apparent when the substrate is left exposed.

M. Lower heavy structural framing members by hoist or crane.

3.4 Cutting

A. Cutting of concrete, masonry and asphalt shall be made clean and neat.

B. At limits of demolition Work shown or specified, provide neat, orderly, and clean joints, lines, and edges of surfaces, whether for junctions with new materials or surfaces or whether to be left as existing. Where demolition methods or controls may not permit the intended jointure, submit conditions and alternatives to Owner’s Representative, and obtain resolutions prior to commencing.

C. Do not cut or alter structural members unless indicated to do so on the Drawings or written approval is received from Owner’s Representative.

D. Take care not to damage reinforcing or structural steel scheduled to remain in place.

FANNY CHAPMAN

SECTION 02 41 19

SELECTIVE DEMOLITION

Fanny Chapman Pool Repairs Doylestown Borough, Bucks Co., PA

Section 02 41 19 - Selective Demolition 08.26.2025

3.5 Repairs

A. Promptly repair damage to adjacent construction caused by demolition operations.

B. Where repairs to existing surfaces are required, patch and paint to restore surface to original or better condition.

C. Restore exposed finishes of patched areas and extend restoration into adjoining construction in a manner that eliminates evidence of patching and refinishing.

3.6 Cleaning

A. Clean adjacent improvements and the work areas to be free of dust, dirt, and debris caused by demolition operations. Return adjacent areas to condition existing before demolition operations began.

END OF SECTION