Tag Archives: HERS rating
Posted on 19. Dec, 2011 by Rebecca Firestone.
This news flash about a seemingly obscure topic is of immediate importance to all our architect Title 24 clients -and it’s good news for a change. The Quality of Insulation Installation credit is a HERS test that can help design projects to achieve Title 24 energy compliance, and we’ve had a couple of nasty surprises with it in the past.
Apparently, up until around yesterday, the California Energy Commission did not officially recognize the QII test as valid for open-cell spray foam. Our insulation expert James Morshead of SDI Insulation actually sent me an urgent email yesterday with the news, saying:
Posted on 15. Sep, 2011 by Rebecca Firestone.
As most of our readers now know, California’s energy code got a lot stricter in January of 2010. Increasingly, HERS tests are required to comply, even for custom residential projects. HERS tests are special third-party field inspections for things like ductwork, insulation, and air-conditioner efficiency. These tests are called out on the Title 24 energy compliance report, also known as the CF-1R. This energy report must be included on all Building Department submittals statewide throughout California to obtain a building permit. The energy report is then reviewed as part of the plan check process.
And now, a new requirement, or really an old one that’s just now being enforced: All CF-1R reports that call for a HERS test must be officially “registered”. Don’t say we didn’t warn you. Plan checkers are starting to kick back custom residential submittals if they don’t see a CalCERTS watermark on the energy report.
Posted on 12. May, 2010 by Rebecca Firestone.
A few months ago we published an interview with a GreenPoint Rater to de-mystify the GreenPoints system that was suddenly taking California building departments by storm. Like LEED and several of the current rebate programs, GreenPoints has tie-ins to Title 24’s energy compliance scoring, and so we’ve had to help our clients to interface with this new standard.
There’s another standard that’s been around for a long time – the Home Energy Rating System, or HERS. For the first time, we are having to tell our clients that they will have to do at least one HERS verification in order to meet the new 2008 standards of California’s Title 24 energy code. Suddenly, everyone had questions. What in the heck do HERS raters actually do, and what does it cost? Is this going to be a huge headache or a minor annoyance? What benefit is there to HERS testing apart from compliance? What does a person have to do to become certified as a HERS rater?
Posted on 23. Sep, 2009 by Rebecca Firestone.
A few months ago, we had the pleasure of working with a GreenPoint rater on one of our recent Title 24 consulting projects. John Eckstein is a building professional with expertise in both home energy performance, and indoor air quality, particularly mold investigation. Since GreenPoint rating is still relatively new, we asked him what is involved in working with, or becoming, a GreenPoint rater.
Posted on 04. Aug, 2009 by Rebecca Firestone.
I know we’ve published several of these, but this is updated to show more specifics. These are the requirements that will be in effect when the new 2008 Title 24 goes “live” in January 2010.
These requirements reference two compliance methods, a prescriptive method and a performance method. The prescriptive method is simpler but offers less flexibility, whereas the performance method uses a software modeling program with a detailed series of inputs that can be modified to test various trade-offs. We at Green Compliance Plus use the performance method.