User manual

FAQ for CBECC-Res 2013

FAQS POSTED ON SEPTEMBER 25, 2013

1. Where are my input files?

They are in a folder similar to this (set up during installation): C:\My documents\CBECC-Res2013

Projects\

2. Are we supposed to model unconditioned garages?

You do not have to model unconditioned garages, but you will likely find it beneficial and a more

accurate representation of the building. No energy requirements apply to the garage.

[Updated 3/18/14] It became too confusing and time-consuming to think of all the ways that might

be acceptable to avoid modeling the garage. Since CBECC-Res is a much more accurate modeling

program, if the building includes a garage, that garage must be modeled.

3. Is this program ready for building department and HERS provider submittals?

[Updated 5/7/14] Once a HERS Provider is approved and CF1Rs can be registered, then you can use

the program for submittals. Another option is the “early adopter program” as explained in Blueprint

March-April 2014. No. The program is not ready for HERS provider or building department

submittals. It can be used for determining the effect of the 2013 standards on production homes.

4. Is using CBECC-Res utilizing the performance approach?

Yes, CBECC-Res is the certified public domain program for demonstrating performance compliance

with the 2013 Standards.

5. Can you provide tips for modeling multifamily buildings?

Multi-family row house with units on both sides where those party walls would have been left out

under 2008 performance inputs. In the CBECC-Res model all the surfaces, including surfaces (party

walls, floors, ceilings) between units. For the time being, if the dwelling unit adjacent to the

modeled unit is not being modeled, model the surface as “interior” and specify none for the zone on

the other side.

Can I model the whole building as one zone?