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Deconstruction: A Local Government Model. Wayne Fenton Orange County Public Works, Hillsborough, NC.

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Deconstruction a local government model

Deconstruction: A Local Government Model

Wayne Fenton

Orange County Public Works,

Hillsborough, NC


What is deconstruction

Deconstruction is the process of selectively and systematically disassembling buildings that would otherwise be demolished to generate a supply of materials suitable for reuse in the construction or rehabilitation of other structures.

Deconstruction differs from recycling in that recycling does not seek to capture building materials in a reusable form (i.e., whole bricks, blocks, clean, unbroken pieces of lumber, etc.)

What is Deconstruction?


A brief history
A Brief History systematically disassembling buildings that would otherwise be demolished to generate a supply of materials suitable for reuse in the construction or rehabilitation of other structures.

  • Orange County owns 34 buildings

  • Buildings range in age from pre-Revolutionary war to modern structures


The building
The Building systematically disassembling buildings that would otherwise be demolished to generate a supply of materials suitable for reuse in the construction or rehabilitation of other structures.

Approximately 3,000 square feet


The experiment
The Experiment systematically disassembling buildings that would otherwise be demolished to generate a supply of materials suitable for reuse in the construction or rehabilitation of other structures.

  • A 1920’s/1950’s mixed construction structure housing a sheltered workshop

  • Building located in heart of historic district

  • Sat vacant for several years after suffering severe storm damage

  • Options considered


The process
The Process systematically disassembling buildings that would otherwise be demolished to generate a supply of materials suitable for reuse in the construction or rehabilitation of other structures.

  • Project approved by BOCC

  • Purchasing Dep’t persuaded

  • Bid-process tailored

  • Seasoned local deconstruction specialists hired

  • Process documented


Desired project outcomes

Removal of unsafe structure systematically disassembling buildings that would otherwise be demolished to generate a supply of materials suitable for reuse in the construction or rehabilitation of other structures.

Capture of valuable materials, especially for use in other similar vintage structures

Demonstrate feasibility of process

Provide skills enhancement opportunities

Document the process:

To develop promotional video

To develop basic “how-to” video

Desired Project Outcomes


Materials recovered
Materials Recovered systematically disassembling buildings that would otherwise be demolished to generate a supply of materials suitable for reuse in the construction or rehabilitation of other structures.

  • 39+ tons of building materials recovered for reuse through deconstruction


Recovered materials
Recovered Materials systematically disassembling buildings that would otherwise be demolished to generate a supply of materials suitable for reuse in the construction or rehabilitation of other structures.


Materials recycled
Materials Recycled systematically disassembling buildings that would otherwise be demolished to generate a supply of materials suitable for reuse in the construction or rehabilitation of other structures.

  • 6 tons of metal

  • 1 ton of white goods

  • 140 tons of concrete


Waste generated
Waste Generated systematically disassembling buildings that would otherwise be demolished to generate a supply of materials suitable for reuse in the construction or rehabilitation of other structures.

  • Less than 100 tons of waste generated by deconstruction required disposal

  • Primarily rotted wood, mixed composition items, sheetrock, shingles


Benefits of deconstruction
Benefits of Deconstruction systematically disassembling buildings that would otherwise be demolished to generate a supply of materials suitable for reuse in the construction or rehabilitation of other structures.


Economic
Economic systematically disassembling buildings that would otherwise be demolished to generate a supply of materials suitable for reuse in the construction or rehabilitation of other structures.

  • Cost of deconstruction can be less than cost of demolition

  • Salvaged materials have a value

  • Cost avoidance in tipping fees

  • Preservation of landfill space

  • Job-skills training


Environmental
Environmental systematically disassembling buildings that would otherwise be demolished to generate a supply of materials suitable for reuse in the construction or rehabilitation of other structures.

  • Preservation of landfill space

  • Resource conservation

  • Deconstruction a cleaner technology than demolition – less noise, air pollution


Educational
Educational systematically disassembling buildings that would otherwise be demolished to generate a supply of materials suitable for reuse in the construction or rehabilitation of other structures.

  • Governments should lead by example

  • Act as a catalyst to contractors, facility owners/managers

  • Be a model for other governments


Cost benefit analysis

Demolition Costs systematically disassembling buildings that would otherwise be demolished to generate a supply of materials suitable for reuse in the construction or rehabilitation of other structures.

Estimate: $50,000

Deconstruction Costs

Actual Expenditures: $37,929

Savings

Salvaged Materials Value: $37,130*

Landfill Fees Avoided: $1,600

Cost Benefit Analysis

* Based on local vendor estimate


Measuring success

Structure successfully and safely removed systematically disassembling buildings that would otherwise be demolished to generate a supply of materials suitable for reuse in the construction or rehabilitation of other structures.

Some materials have been reused in other projects

Demonstrated feasibility of deconstruction option

Provided temporary workers with enhanced skills – two hired by County, one still employed

Promotional video complete & limited distribution

Measuring Success


The video
The Video systematically disassembling buildings that would otherwise be demolished to generate a supply of materials suitable for reuse in the construction or rehabilitation of other structures.

  • High quality, low budget

  • 16 minutes running time


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