Sunday, May 24, 2009
This post is edited as of November 7, 2009.
EPS foam blocks (Styrofoam) ARE recyclable, in Portland, Oregon. Recycling, of clean material only, is a service of Pacific Land Clearing, at three of their four locations in metro Portland.
This Bee Newspaper review, tells the story, as of June 4, 2008, with info on what PLC does with the styrofoam. Reported options include a volunteered service of the seasonal Moreland Farmers Market, which brings a weekly collection to PLC.
I find styrofoam stored in attics, often. Stored. Not really doing any good as insulation, where air freely seeps under. I collect material in a 55-gallon drum liner, and when full, make a trip to a PLC location. I want my city to require all recycling centers to accept material, and bring it to PLC. As noted in The Bee, the mindset that styrofoam must go with trash, is hard to undo.
Every city should look for means to consume styrofoam as done by PLC and as described in The Bee.
Friday, May 22, 2009
The meaning of the acronym PTCS, is Performance Tested Comfort Systems. This resides at ptcsnw.com, which is maintained in Portland, Oregon, by Ecos Consulting. PTCS has been a bugaboo to me. Oregon Department of Energy has delegated its training responsibility for weatherization contractors, to ptcsnw/ ECOS. That responsibility currently is carried out by instruction through Energy Trust, in sealing HVAC ducts, and installing heat pumps. These classes are motivated for a large number of weatherization contractors, by Energy Trust of Oregon rebate requirements (see end of this post). Useful skills will be taught in the classes, but they should not qualify anyone and everyone, to work as HVAC specialists. I would not ever compete for that work, but would refer a real specialist that I trust. I don't want to invest in the HVAC instruction, for a couple of reasons:
First, there is substantial cost of about $1000, my time of two full days in class, and a $400 tuition. If the instruction really is important to people I serve, the tuition should be rebated somehow as reward for my unpaid dedication to my community. My costs are in the thousands of dollars, for unrewarded bid visits and telephone advice, often surpassing what a paid auditor offers a homeowner. I think the knowledge of PTCS that should matter to me as I make attics useful, whatever it is, is in the public domain, and should be accessible online. All paid people are ultimately funded by taxes, here a 3% addition to natural gas and electricity bills. Anyone, not just paying contractors, should get back more than one-time rebates for conservation measures. There should be no obstacles between public-domain knowledge, and the public, anyone, who might have use of that knowledge. The gripe is similar to what I feel about codes turned over to publishers, to make a profit. I will pay for nicely-bound code documents, but expect to find them in online pdf form, for free download. There should be no barrier of access, to things in the public domain, that I need to know.
Second, I know that the instructor of Ecos/ ptcsnw duct sealing classes, has stated in a Home Energy Magazine article here, that duct sealing with wrap-and-goop is objectionable to many workers, and that foil-faced double-backed butyl tape I have reported finding useful, is good. 2009 Energy Trust Specifications , at DS 1.5, ban the foil tape except on air handlers. I can not accept that I have done wrong in my employment of Polyken Foilmastic 367-17. I have protested the Energy Trust rule. One application I am absolutely proud of, is the joining of flexible heating ducts to a steel collar insufficiently smaller than the duct ID. I have achieved secure coupling in several homes, where ducts were detached, by slitting the duct in 120 degree sectors, applying 367-17 to the ID tightly-smoothly-generously, to form a bell. I then wrapped the improved duct and collar in OD application of 367-17. I challenge anyone to do this repair with wrap-and-goop. If I am in rebellion, I can not attend the class.
I have not invested in the tools of real HVAC professionals, including a duct blaster and other more-complex equipment. I bought a blower door last August, but just sold it. I only bought the blower door, to support customers with air-sealing-achievement rebates. Thankfully, such rebates have been eliminated in Oregon. I do not wish to compete dishonestly with the real HVAC professionals, or with professionals engaged daily as Home Performance testers. Home Performance testing demands daily practice, and investment in all tools, including all elements of Energy Conservatory products, and infrared thermography equipment. I am sad that my buyer, a general contractor like me, intends to delegate testing work to an employee, also not a dedicated professional, and to snag general contracts through the aura of holistic treatment of a home. General takes cuts on Subs. I don't do that. I want the homeowner to independently choose best contractors for all work. No cuts out of the homeowner's pocket. Home Performance testing is a summary task, after obvious things have been fixed. Get a greenness score for real estate purposes, and be sure a home is not too tight. One need not do testing, to imagine big measures of weatherization, HVAC upgrades, thorough crawl space ground barrier sealing and radon mitigation including heat-recovery ventilation.
There are strong emotions, perhaps mostly relief, in selling the blower door, though it had been sitting idle in my living room, tying up capital. I had been refused an air-sealing rebate in an oil-heated home subject to Oregon Department of Energy rebates, for want of PTCS certification. In the job, I patched visible, large holes, including a car-bashed garage wall, not found through another contractor's blower door test. That was not work for an HVAC professional. I promised to sell the blower door, if ODOE would not deal with this irrationality. Another bump to emotions over blower-door irrationality is in performance testing as a BASIS for duct sealing. (The PT in PTCS, taken to excess.) Energy Trust allows a rebate for duct wrapping, only if the ducts have been tested (with a duct blaster). Duct sealing and duct wrapping rebates hereafter apply only to work done by PTCS-trained HVAC technicians. In many homes, the entirety of a home's HVAC ducting is visible in a crawl space or attic. An insulation installer can know that ducts are intact, and could wrap them with opportune timing, but that is banned.
HVAC ducts should not be allowed to leak, but Energy Trust allows leaks to be deliberately maintained, if needed to achieve minimum fresh-air exchange,