Hi, this is my first attempt at the NCARB vignette. I have some questions:
- since the vignette says to use "recessed fluorescent fixtures", does it matter whether I use 2x2 or 2x4 fixtures? I realized I used different fixtures than NCARB solution, so just want to confirm.
- Is there any rule of thumb for how far the diffusers and return-grilles should be from the wall? Some of mine are very close to the wall.
- The rigid duct that connects to the return riser - is it basically supposed to come through the wall into any of the ceilings?
Any other feedback will be very helpful. Thank you in advance!