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Here is an example of our Sustainability Matrix
Sustainability Matrix
Here is an example of our Sustainability Matrix
Just to be clear, typically historic windows are very well made and can survive many decades, even a century, with proper maintenance,. If there are original historic windows that exist in these buildings, and I am sure they do in many cases, they can be repaired. The energy savings through replacement with insulated glass is fractional. The payback is easily 20 years or more. And the quality of the replacement windows is lesser and has little chance of enduring 50 years or more. If the originals are irreparable unlikely but possible, it is critical to the integrity of the property to replace with new windows that replicate the patterning of the originals. This is easily done by professionals with this type of background. Discarding reparable existing windows is about the most un-sustainable effort imaginable. I have all kinds of articles and data to support this if need be.
ReplyDeleteRegarding the inventory, PPS recently paid for a firm called Entrix to perform a Historic Resource Inventory of all100 or so PPS structures. It was well done and in their files. I know they used it in their planning for the upcoming bond. CJ and Kerry Hampton are very familiar with it.
Art DeMuro
I wanted to reiterate that my comments around front-loading short-payback O&M type prescriptive measures were directly related to the goal of implementation this year.
ReplyDeleteI definitely agree that this is not the ideal approach and a longer term comprehensive plan which includes a varitey of projects should be developed.
Jefferson asked me at the end if there were some "bigger" projects that could be added to the "sandwich" menu of: steamtraps, heating coils, univents, pipe insulation, etc.
I would say building insulation (attic, ceiling, walls, etc.). Also, a pretty generic, labor-intensive measure and not that complicated if you have feasible spaces. Insulation also has the added benefit that you can essentially put it in and forget about it - no ongoing maintenance - which school district have trouble keep up with.
Catherine J. Diviney