Retrofitting mechanical insulation in existing buildings is also a critical issue for practitioners and building owners/operators to be aware of. Most common is a failure to properly replace the insulation after removal when servicing/ replacing a pipe or valve.
Many existing buildings also have insufficient insulation installed, or other insulation deficiencies. This creates opportunities for a positive return on investment through retrofitting, while addressing other objectives such as protecting building components.
The following figure provides an example of a mechanical insulation retrofit process that includes assessment of energy savings.
Three key elements for a successful mechanical insulation retrofit project include:
- Hiring mechanical contractors and insulation installers qualified in mechanical insulation
- Assessing the retrofit business case and recognizing the longer term risks of failing to maintain original mechanical insulation or correct deficiencies
- Timely and informed inspection and sign-off of the completed work.