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23

Retrofit

Also referred to as "Adaptive Renewals".

To add new or additional components to an existing system or an existing asset or to reconfigure and adapt.

Adaptive renewals are driven by physical deterioration and different forms of obsolescence. 


Attributes
Retrofit projects have the following general attributes:

  • The may include an incremental cost.
  • They are typically classified as a capital project.
  • Reconfiguration of the defender asset and challenger asset.
  • A new asset may be provided where one did not exist before. 
  • A “challenger” (new asset) that is different from the “defender” (existing asset)
  • An upgrade in the quality, durability and/or functionality
  • An incremental-cost over the base-cost of the comparable renewal
  • The renewal timetable is driven principally by forces of obsolescence (also physical degradation)
  • An asset may be provided where one did not exist before.
Refer to the expert system that identifies different cycles of technological innovation and legal directives. 



Examples by Force
Listed below are various types of retrofit projects necessitated by different forms of obsolescence.

As a result of economic obsolescence:
  • Boiler-and-Tank Retrofit
  • Copper-to-Pex Retrofit
  • T12-to-T8 Lighting Retrofit
  • CFL-to-LED Lighting Retrofit
  • Spring-to-Weight Retrofit 
  • VFD Retrofit to booster pump package.
  • DDC Retrofit
As a result of technological obsolescence:
  • Conventional-to-Addressable Retrofit
  • Relay-to-Solid-State control Retrofit (see: elevator modernization)
As a result of legal obsolescence:
  • Seismic Retrofit
  • PVC Encapsulated Cylinder Retrofit
  • Hazardous materials abatement (ACMs, lead, etc)
  • Sprinkler Head Retrofit
  • Emergency Telephone Retrofit
  • Face-Seal to Rain-Screen Cladding Retrofit
  • Acrylic Dome Skylights to Unit Skylights
  • Accessibility lift to public swimming pool
As a result of functional obsolescence:
  • Stand-by-to-emergency-power retrofit
  • Wood shingle to asphalt shingle retrofit


Examples by System

General
Listed below are some common examples of retrofits with this system.
  • Seismic Retrofit (legal/functional obs.)
  • Hazardous materials abatement (legal obs.)
  • Barrier free access (handicap ramps, lever door knobs, etc) - (legal/functional obs)
Structural System
Listed below are some common examples of retrofits with this system.
  • Seismic Retrofit
  • Exposed wood beam protection retrofit - example flashing over end grain)
  • Traffic coating application to suspended slab slab
  • Sealer to exposed concrete wall (to arrest the carbonation front)
Enclosure System
Listed below are some common examples of retrofits with this system.
  • Face-Seal to Rain-Screen Cladding Retrofit (legal/functional obs.)
  • Acrylic Dome Skylights to Unit Skylights (Legal obs.)
  • Water shedding improvements (functional obs.).
  • Wood shingle to asphalt shingle roof retrofit (economic obs.)
  • Polyurethane-to-SBS roof/deck retrofit (functional obs.)
  • Liquid applied to sheet good membrane retrofit
Electrical System
Listed below are some common examples of retrofits with this system.
  • T12-to-T8-to-T5 lighting Retrofit (economic obs.)
  • CFL-to-LED lighting Retrofit (economic obs.)
  • Stand-by-to emergency power retrofit (functional obs.)
  • Occupancy sensor retrofit (economic obs.)
  • Security retrofits - CCTV, proximity access
Mechanical System
Listed below are some common examples of retrofits with this system.
Elevator System
Listed below are some common examples of retrofits with this system.
  • PVC Encapsulated Cylinder Retrofit (legal obs.)
  • Relay to solid state control retrofit (technological obs.)
  • Emergency Telephone Retrofit (legal/functional obs.)
Fire Safety System
Listed below are some common examples of retrofits with this system.
Finishes Systems
Listed below are some common examples of retrofits with this system.
  • Plaster-to-drywall retrofit
  • Wallpaper-to-paint-finish retrofit
Amenities System
Listed below are some common examples of retrofits with this system.
  • Chlorine-to-saltwater pool disinfection retrofit
  • Accessibility lift to bodies of water retrofit
  • Pool main drain retrofit
Sitework system
Listed below are some common examples of retrofits with this system.
  • Wood fence to concrete fence retrofit
  • Wood privacy to vinyl privacy retrofit
Adding an emergency telephone to an elevator that was not originally equipped with one. Adding fire sprinklers to a building that was not originally sprinklered.



Classes of Adaptive Renewals
There are three general classes of adaptive renewal projects
  • Class A: Mandatory Adaptive Renewals
  • Class B:  Highly Recommended &/or Precautionary Adaptive Renewals
  • Class C: Wish List Adaptive Renewals
Class A Some of the projects are always contemplated as upgrades in all lifecycle audits because of legal obsolescence or technological obsolescence. Some typical examples of class A projects:
  • Elevator control modernizations  (technological obs.)
  • Elevator cylinder retrofits (legal obs. )
  • Face-seal to rain screen cladding (legal obs.)
  • Acrylic dome to unit skylights (legal obs.)
The Class A projects must be shown as an upgrade or the consultant would be remiss in duties to inform the owner.

Class B projects make good economic sense and are mentioned for “consideration” in our DRs for matters of life cycle costing, contingency/risk management, etc. Here are some of the primary examples:
  • Wood shingle to asphalt shingle roofing
  • Polyurethane to SBS (functional obs.)
  • Hazardous materials abatement (in older stratas) – While we don’t factor the contingency soft cost in our calculations, we would be remiss if we did not mention it in our reports as a potential cost.
  • Sealer/coating
The Class B projects can be triggered by other bundled projects.

Class C projects are th "wish-list" type of adaptive renewals. The balance of the projects can be considered discretionary
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Fig. Elevator relay controls replaced with elevator solid state controls due to technological obsolescence.


VFD retrofit
Fig. Triplex booster pump package replaced with package that includes VFDs.


Network diagram of alternative asset replacement strategies.
Fig. Network diagram (or decision tree) of alternative asset replacement strategies.



Polyurethane roof (12 year life) replaced with upgraded SBS roof (20 year life).
Fig. Polyurethane roof (12 year life) replaced with upgraded SBS roof (20 year life).


Replacing copper piping (the defender) with pex piping (the challenger)
Fig. Replacing copper piping (the "defender") with pex piping (the "challenger")


Examples of some types of projects that are considered normal during each of the lifecycle stages.
Fig. Examples of some types of projects that are considered normal during each of the lifecycle stages.



Retrofit of a conventional fire alarm control panel (FACP) to an addressable system
Fig. Retrofit of a conventional fire alarm control panel (FACP) to an addressable system.


Retrofit of fluorescent strip lighting from T12 to T8 and T5 fixtures for improved energy efficiency.
Fig. Retrofit of fluorescent strip lighting from T12 to T8 and T5 fixtures for improved energy efficiency.


The forces of retirement mapped onto the P-F curve
Fig. The different forces of retirement (obsolescence) mapped on the P-F curve.


Retrofit of CFL to LED lighting
Fig. Retrofit of CFL to LED lighting.


Cedar shingle roof retroffited to asphalt shingle
Fig. Cedar shingle roof retrofitted to asphalt shingle.




Retrofit of overhead gate from spring-loaded to weight-loaded mechanism
Fit. Retrofit of overhead gate from spring-loaded to weight-loaded mechanism.


Retrofit of acrylic dome skylights to unit skylights
Fig. Retrofit of acrylic dome skylights to unit skylights, necessitated by legal obsolescence in some jurisdictions.


Retrofit of elevator hydraulic cylinder with PVC corrosion protection
Fig. Retrofit of elevator hydraulic cylinder with PVC corrosion protection, necessitated by legal obsolescence starting in the early 2000s.


Retrofit conversion of tank-type domestic water heating system to boiler-and-storage-tank configuration
Fig. Retrofit conversion of tank-type domestic water heating system to boiler-and-storage-tank configuration. Typically necessitated by economic obsolescence and/ro functional obsolescence.


Sprinkler head retrofit due to legal obsolescence arising from a product recall
Fig. Sprinkler head retrofit due to legal obsolescence arising from a product recall.


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Fig. Interior refurbishment that includes retrofit from plaster-to-drywall finish and abatement of ACMs.

See also:
Compare with:



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